No.2 Reproduktionsmedizin und Endokrinologie 2009

Document technical information

Format pdf
Size 4.2 MB
First found Jun 9, 2017

Document content analysis

Language
English , German
Type
not defined
Concepts
no text concepts found

Persons

Bill Reid
Bill Reid

wikipedia, lookup

James Joyce
James Joyce

wikipedia, lookup

Joseph Fourier
Joseph Fourier

wikipedia, lookup

Organizations

Places

Transcript

6. Jahrgang 2009 // Nummer 2 // ISSN 1810-2107
Journal für
2009
ReproduktionsmedizinNo.2
und Endokrinologie
– Journal of Reproductive Medicine and Endocrinology –
Andrologie • Embryologie & Biologie • Endokrinologie • Ethik & Recht • Genetik
Gynäkologie • Kontrazeption • Psychosomatik • Reproduktionsmedizin • Urologie
7th European Congress of Andrology (ECA) November
28-December 1, 2012, Berlin Abstracts
J. Reproduktionsmed. Endokrinol 2012; 9 (5), 321-420
www.kup.at/repromedizin
Online-Datenbank mit Autoren- und Stichwortsuche
Offizielles Organ: AGRBM, BRZ, DIR, DVR, DGA, DGGEF, DGRM, EFA, OEGRM, SRBM/DGE
Indexed in EMBASE/Excerpta Medica
Member of the
Krause & Pachernegg GmbH, Verlag für Medizin und Wirtschaft, A-3003 Gablitz
Unser Laborteam: Inkubatoren von Labotect
Qualität - Made in Germany
Benchtop Inkubator
CO2-Inkubatoren
C200
C60
Labo C-Top
C16
Fragen Sie VOR Ihrer Kaufentscheidung nach den Zertifikaten!
Vertiefende Informationen zum Thema Zertifizierung senden wir
Ihnen gerne auf Anfrage zu.
www.labotect.com
[email protected]
+49 551 / 50 50 125
7th ECA-Congress – Abstracts
7th European Congress of Andrology (ECA)
November 28 – December 1, 2012, Berlin
Oral Presentations
 Opening Lecture
01
What Makes a Normal Man?
J. Toppari
Departments of Physiology and Pediatrics, University
of Turku, Finland
Sex development is regulated by hormones.
Normally 46,XY fetuses have testes that produce large amounts of testosterone during
pregnancy. If testosterone is normally reduced to dihydrotestosterone and androgen
receptors are acting properly, the fetus will
masculinise and look like a boy as newborn.
Dysgenesis of the testes leading to defective
androgen production, defects in steroid biosynthesis and androgen insensitivity lead to
impaired masculinisation, 46,XY Disorder
of Sex Development (DSD). Exogenous
anti-androgens disrupting the hormone biosynthesis or action, or causing gonadal dysgenesis can also cause 46,XY DSD. Mild
forms of this are hypospadias and cryptorchidism, both of which are very common
birth defects. Developmental disorders are
linked to an increased risk of testicular germ
cell cancer and impaired semen quality in
adult men. Testicular Dysgenesis Syndrome
(TDS) is a term to describe the possible
background of all these problems. Rodent
studies have demonstrated that there is a specific masculinisation programming window
in fetal development that is decisive for later
development. Disruption of androgen production or action at this window has permanent effects on penile and testicular development. It is apparent that a similar critical
window can be found also in human development. The time and width of the window
varies for different endpoints, and e.g. sperm
production capacity is determined over a
wide window spanning from fetal life to puberty, whereas penile size may have much
shorter programming window. The challenge for andrologists is to find reasons for
abnormal development of a man. We have
only a handful of genetic defects that are
known to explain TDS, and it is likely that
environmental factors play a major role. It is
our task to identify those factors to be able to
prevent male reproductive health problems.
* Index of authors (only primary authors) see
page 419.
 Short Oral Presentation 1:
Free Communications,
New Horizons in Andrology
02
Compartmentalization and Regulation of Iron Metabolism Proteins
Protect Male Germ Cells from Peripheral Iron Fluctuation
E. Meyron-Holtz1, Y. Leichtmann-Bardoogo1, B. Marohn2,
L. Cohen1, P. Grzmil3, A. Meinhardt4, S. Schubert2
1Technion-Israel Institute of Technology, Biotechnology and Food Engineering, Haifa, Israel; 2Hannover
Medical School, Institute of Human Genetics, Hannover;
3Georg August University, Institute of Human Genetics, Göttingen; 4Justus-Liebig-University of Giessen,
Department of Anatomy and Cell Biology, Giessen,
Germany
The high mitotic rate and avid mitochondriogenesis of developing male germ-cells imply
high iron requirements. Yet, access to germ
cells is tightly regulated by the blood-testisbarrier. To elucidate how iron supply to developing sperm works and affects mature
sperm function we localized iron deposition
by Perls stain and analyzed iron related proteins in testes of wild-type, Irp2–/– and Hfe–/–
mice by in situ hybridization, immunohistochemistry and immunoblots. In addition, ferritin secretion and sperm function were analyzed. Iron deficiency as well as the absence
of IRP2 affected mature sperm function in a
complex way. In the testes, iron accumulated
mainly around seminiferous tubules (SFT)
and only small amounts localized within the
SFT. The colocalization of transferrin receptor (TfR1) with transferrin (Tf) and the divalent metal transporter-1 (DMT1) suggested
an active role for TfR1 in Tf dependent iron
import to primary spermatocytes, within the
SFT. The expression of IRP2 in later primary
spermatocytes and spermatids may explain a
detachment of TfR1 regulation from iron
levels that we observed in the SFT. DMT1
accumulation in the luminal compartment of
the SFT supported our hypothesis that its
main role may be in iron transport during the
final steps of germ cell maturation. Ferritin
within the SFT was mainly synthesized in
Sertoli cells that are capable of secreting ferritin, which may be taken up by primary
spermatocytes. We suggest that during spermatogenesis, iron moves from primary spermatocytes to spermatids, which deliver dur-
ing elongation most iron to the apical compartment of Sertoli cells. From there iron is
routed back to a new generation of spermatocytes. Losses are replenished by the peripheral circulation. Such an internal iron cycle
detaches iron homeostasis within the SFT
from the periphery. This newly developed
model explains how compartmentalization
can protect male germ-cells from peripheral
nutrient fluctuations.
20
Epigenetic Biomarkers ofTestis and
Epididymis Existing in Extracellular Nucleic Acids from Human Semen
H. Li1, H. Guan1, X. Chen2, C. Xiong1
Family Planning Research Institute/Centre of Reproductive Medicine; 2Tongji Medical College, HUST,
Wuhan, China
1
Introduction Developing epigenetic biomarkers for male infertility is desired. Small
RNAs and DNA methylation in testis/epididymis are essential epigenetic regulations
for male fertility. Recently, we and others
have found extracellular mRNAs, miRNAs,
and DNA in human seminal plasma. We reasoned some testis/epididymis specific or enriched small RNAs and DNA methylations
should be detected in these extracellular
nucleic acids, and thus hold promise as noninvasive epigenetic biomarkers for infertility.
Materials & Methods The vasectomy on
fertile men makes it possible to identify
seminal small RNAs and DNA methylations
predominately secreted from human testis
and epididymis, because the ejaculate of a
successfully vasectomized man does not contain the secretion from testis and epididymis.
By comparing between normozoospermic
donors and vasectomized men, solexa miRNA
sequencing and promoter array were used to
screen testis/epididymis specific or enriched
seminal miRNAs, piRNAs and promoter methylation, respectively. Candidates were further validated by quantitative PCR in individuals with normozoospermia and vasectomy.
Results Solexa miRNA sequencing and
subsequent validation in individuals identified 61 miRNAs reliably predominately secreted from testis/epididymis. Interestingly,
28 miRNAs, which contain 5 miRNA clusters, reside on the X-chromosome. At least
995 seminal piRNAs were identified in nor-
J Reproduktionsmed Endokrinol 2012; 9 (5)
For personal use only. Not to be reproduced without permission of Krause & Pachernegg GmbH.
321
ECA – Abstracts
Abstracts *
ECA – Abstracts
7th ECA-Congress – Abstracts
mozoospermic donors while were absent in
vasectomized men. The promoter array identified promoters of 1834 testis and epididymis-specific hypomethylated genes and
1017 testis and epididymis-specific hypermethylated genes. Subsequent validation
confirmed the result of promoter microarray.
Conclusion The present study identified
epigenetic informations that predominately
derived from testis and epididymis from human semen. These epigenetic informations
may be useful noninvasive molecular markers for human male infertility on revealing
the epigenetic etiology and physiopathological status of impaired sperm production and
maturation.
References:
1. Li HG, Huang SY, Guo CC, et al. PLoS One
2012; 7: e34566.
2. Li HG, Wu CL, Gu XL, et al. Hum Reprod
2012; 27: 991–7.
3. Li HG, GuanHT, Huang SY, et al. Int J Androl
2010; 33 (Suppl 1): 45–6.
4. Huang SY, Li HG, Ding XF, et al. Clin Chem
2009; 55: 1967–76.
5. Li HG, Huang SY, Zhou H, et al. Asian J
Androl 2009; 11: 703–9.
04
Worsening Inhibin B, but not Testosterone, Secretion after Kidney
Transplantation in Male Patients
< 45 years
S. Hamdi1, M. Walschaerts1, R. Mieusset1, L. Bujan1,
L. Rostaing2, N. Kamar2
1
CHU Toulouse – Hôpital Paule de Viguier, EA3694
Human Fertility Research Group, Toulouse; 2CHU
Toulouse – Hôpital Rangueil, Nephrology, Dialysis
and Organ transplantation, Toulouse, France
Introduction It is well established that male
patients with end-stage chronic kidney disease often exhibit biological and/or clinical
hallmarks of an abnormal hypothalamo-pituitary-gonadal axis. Several studies reported
that haemodialysis (HD) does not reverse
this impaired endocrine status while others
reported controversial results about the recovery of LH, FSH and testosterone secretions after successful kidney transplantation
(KT). Beyond the endocrine status, infertility is an important issue for young male patients. Since inhibin B has been recently recognized as a valuable marker of spermatogenesis, it would be of interest to investigate it
together with serum gonadotrophins, testosterone levels in men on hemodialysis and
after successful KT.
Material & Methods Fifty-three male patients under 45 years (mean: 37 years) were
studied longitudinally while undergoing HD
(median length: 36 months) and six months
after KT. Pre- and post-operative serum
specimens were collected to assess LH, FSH,
testosterone and inhibin B levels by immunoassays. Hormonal status was also compared to that of 46 fertile semen donors
(mean age: 37 years).
Results For patients under HD, LH and
FSH levels were higher than that of control
322
J Reproduktionsmed Endokrinol 2012; 9 (5)
men, those of testosterone and inhibin B
were not significantly different. After KT,
LH levels returned to normal range whereas
those of FSH significantly rosed. Testosterone levels remained constant within the normal range but, unexpectedly, those of inhibin B significantly dropped. A detailed
analysis of individual secretion profiles revealed that 60% of the grafted patients remained eugonadic but only a minority of
them (40%) retained normal inhibin B levels. These finding and the fact that pre-operative levels of testosterone and inhibin B
were not correlated suggest that Leydig and
Sertoli cells were differently and independently impacted by the transplantation. We
then investigated whether clinical, biological
or therapeutic (immunosuppressive regimen) parameters could help to expect postgraft inhibin B levels. We could identify a
cut-off for pre-graft inhibin B levels that is
able to predict a post-graft level < 80 pg/mL
with a sensibility of 77% and a specificity of
92%.
Conclusion Our study suggests that endocrine testicular secretions of uremic male patients under 45 years are differently impacted by kidney transplantation. These preliminary and unexpected findings raise new
issues in the management of transplanted patients’ fertility.
06
Detection of Polysialylated NCAM
on Mammalian Sperms
O. Busch1, P. Simon1, S. Bäumner1, R. Röhrich1,
P. Richterich2, H. Geyer1, R. Geyer1, R. Gerardy-Schahn3,
M. Mühlenhoff3, A. Wehrend2, R. Middendorff4,
S. P. Galuska1
1Institute of Biochemistry; 2Clinic of Obstetrics, Gynecology and Andrology for Small and Large Animals,
Justus-Liebig-University Giessen; 3Institute of Cellular Chemistry, MHH Hannover; 4Institute of Anatomy
and Cell Biology, Justus-Liebig-University Giessen,
Germany
Introduction Fertilisation in mammals is a
complex sequence of biochemical events
leading to embryogenesis. In this process,
initial recognition of negatively charged carbohydrates motifs by complementary receptors seems to play a critical role in the sperm
binding to zona pellucida glycoproteins surrounding the plasma membrane of an oocyte.
Studies by Kitajima and co-workers demonstrated the presence of α2,9-linked polysialic
acid (polySia) on sea urchin sperm. Intriguingly, binding of an anti-α2,9-polySia antibody leads to an inhibition of sperm motility
as well as fertilisation due to a decrease of
the intracellular Ca2+ level. Based on these
studies, we became interested in the potential
involvement of sialic acid polymers in mammalian fertilisation.
Material & Methods Therefore, we isolated
human sperms for Western blotting and immunohistochemistry. To identify potential
polySia-carriers a glyco-proteomic approach
was employed. For detailed analysis of the
degree of polymerization a DMB-HPLC approach was used.
Results Our experiments demonstrated that
α2,8-linked polySia was present in protein
lysates of purified sperms. The polySia
chains were bound to N-glycans of the neuronal cell adhesion molecule (NCAM) displaying chains with more than 40 sialic acid
residues. Interestingly, polySia-NCAM was
present in the postacrosomal region of
sperms, which is known to play an essential
role during sperm-egg binding.
Conclusion The localization of polySiaNCAM together with the already described
presence of un-polysialylated NCAM on the
egg surface let assume that polySia together
with NCAM is involved in distinct fertilisation processes.
07
Insulin-like Factor 3 (INSL3): a New
Clinical Parameter for Andrology
R. Anand-Ivell1, 2, Y. Dai1, R. Ivell1, 3
Leibniz Institute for Farm Animal Biology, Dummerstorf,
Germany; 2School of Pharmacy and Medical Science;
3School of Molecular and Biomedical Science, University of Adelaide, Australia
1
Introduction Insulin-like factor 3 (INSL3)
is a member of the relaxin family of peptide
hormones, and is produced by both fetal and
adult-type Leydig cells of the testes in
amounts which are dependent only upon the
number of Leydig cells and their differentiation status. Fetal and adult-type Leydig cells
are discrete population of cells, developing
in the embryo and at puberty, respectively.
INSL3 expression is constitutive and independent of acute regulation by the hormones
of the HPG axis. As a result, INSL3 measurements in peripheral blood are highly
consistent within individuals, varying little
over periods of several weeks. INSL3 produced by fetal Leydig cells can be measured
in amniotic fluid collected at routine amniocentesis at 12-16 weeks. This fetal INSL3 is
responsible for the first phase of testicular
descent and represents a uniquely fetal-gender specific hormone potentially able to influence placental physiology, as well as acting as a biomarker for fetal health, particularly in the context of environmental endocrine disruption.
Materials & Methods We have developed a
series of highly sensitive time-resolved fluorescence immunoassays (TRFIA) able to
measure INSL3 from humans, rodents and
domestic species, in serum and amniotic
fluid down to limits of detection of around
5 pg/ml. We have recently completed several
cohort studies, including 1200 men from the
Australian general population, as well as
men from infertility clinics, and also amniotic fluid samples from 250 pregnant women
carrying male fetuses.
Results and Conclusion INSL3 has an average concentration in healthy human males
of 1.0 + 0.5 ng/ml. This declines from a
maximum in young men (aged 35–40) of
1.3 + 0.5 ng/ml to a low value of 0.8 + 0.4 in
elderly men (aged 75–80), correlating also
with circulating testosterone values. Whereas
7th ECA-Congress – Abstracts
08
Membrane Transporters for Sulfated Steroids and Steroid Sulfatase Expression in the Human
Testis – A Functional System?
D. Fietz1, K. Bakhaus2, S. Günther1, B. Wapelhorst1,
B. Döring2, S. Kliesch3, M. Bergmann1, J. Geyer2
1Institute for Veterinary Anatomy; 2Institute for Veterinary Pharmacology, Giessen; 3Centre for Reproductive Medicine and Andrology, Muenster, Germany
Introduction Sulfated steroid hormones can
be transported into the cells by various membrane localized uptake carriers. In the human
testis, sodium dependent organic anion transporter (SOAT), organic anion transporting
polypeptides (OATPs) and the organic solute carrier protein 1 (OSCP1) are predominantly expressed. By the enzyme steroid sulfatase (StS), intracellular sulfated steroids
can be converted into the biologically active,
non conjugated steroid hormone.
Methods The expression of membrane
transporters and StS was analyzed on mRNA
level using qRT-PCR (testis homogenate),
RT-PCR (single cell populations, assessed
via laser assisted microdissection) and in situ
hybridisation (ISH). The cellular localization
of SOAT and StS was examined applying
immunohistochemistry and Western blotting. Additionally, the functional analysis of
human SOAT protein was conducted using
stably transfected HEK293 cells and liquid
chromatography tandem mass spectrometry
(LC/MS-MS).
Results RT-PCR and ISH using biopsies
showing normal spermatogenesis revealed
the expression of SOAT mRNA in primary
pachytene spermatocytes. By using qRTPCR we were able to show, that SOAT expression is severely diminished or even absent in biopsies showing an arrest of spermatogenesis or a complete loss of germ cells.
The same, to a minor degree, was shown for
other membrane transporters as OATP6A1
and OSCP1. In contrast to that, StS mRNA
was expressed in specimens showing normal
or impaired spermatogenesis, respectively.
SOAT protein was shown to be present in
testis biopsies using WB of tissue homogenate and in pachytene spermatocytes using
IHC. StS protein was detected in Sertoli and
interstitial Leydig cells, confirming the data
from qRT-PCR analysis.
HEK293 cells stably expressing the SOAT
carrier protein showed significant transport
activity for DHEAS and E1S. This was demonstrated by using radiolabeled [³H]-DHEAS
and [³H]-E1S compounds as well as by direct
analysis of the cell associated uptake fraction
by LC/MS-MS. Furthermore, β-estradiol-3sulfate and androstendiol sulfate were identified as novel substrates of SOAT. In contrast
to SOAT, OATP6A1 and OSCP1 had no
transport activity in stably transfected
HEK293 cells for sulfated steroids.
Conclusions SOAT and other membrane
transporters are expressed in germ cells,
whereas StS is expressed in various cell populations. Co-expression within the seminiferous tubule hints to an involvement of sulfated steroids and their biology in hormonal
regulation of spermatogenesis. SOAT seems
to be the most relevant uptake carrier for the
local supply of the testis with sulfated steroid
hormones, since transport ability of other
membrane transporters was significantly low.
09
Combined Effects of the Variants
FSHB-211G/T and FSHR 2039A > G
on Male Reproductive Parameters
F. Tüttelmann1, M. Laan2, M. Grigorova2, M. Punab3,
S. Sõber2, J. Gromoll4
1Institute of Human Genetics, University of Muenster,
Germany; 2Institute of Molecular and Cell Biology;
3
Andrology Unit, Tartu University Clinics, University of
Tartu, Estonia; 4Centre of Reproductive Medicine and
Andrology, University of Muenster, Germany
Introduction Recently, a polymorphism in
the FSHB promoter (-211G > T, rs10835638)
was found to be associated with lower serum
FSH levels in cohorts of Baltic young men.
Concurrently, an increased frequency of the
T-allele in patients with oligozoospermia
was shown, a finding that was confirmed in a
later Italian study. In contrast, a polymorphism in the FSH-receptor gene (FSHR,
2039A > G, rs6166) was previously shown
to be associated with FSH levels in women
only. Since no study addressing joint effects
of both FSHB-211G > T and FSHR 2039A >
G has been conducted so far, we analyzed
effects of both SNPs on male reproductive
parameters.
Subjects & Methods 1,213 male partners
in infertile couples without known causes for
male infertility attending the Department of
Clinical Andrology, Centre of Reproductive
Medicine and Andrology, University Clinic
Muenster, a tertiary-referral centre for infertility were genotyped by TaqMan assay. Associations between single and combined
SNP genotypes and clinical parameters were
evaluated.
Results The FSHB-211G > T T-allele
showed significant dosage effects for FSH
(–0.51 U/l per T-allele), LH (0.28 U/l) and
bi-testicular volume (–3.2 ml). Statistical
significance was enhanced several fold following meta-analysis including the previously published Baltic studies totalling 3,017
men. TT-carriers were found more than twice
as frequently among men with sperm counts
below 39 Mill. (3.2%) than in those with
high sperm counts (1.4 %, p = 1.7×10–3). In
contrast, The FSHR 2039A > G G-allele exhibited non-significant trends for associations with higher FSH and reduced testicular
volumes. However, in the combined model,
FSHR 2039A > G significantly modulated
the more dominant effect of FSHB -211G>T
on serum FSH and testicular volume among
the T-allele carriers.
Conclusions By analysing both SNPs for
the first time, we convincingly show that indeed FSHR 2039A>G has an effect also in
males. In the proposed model of the combined effects, FSHB-211G > T acts strongly
on male reproductive parameters while the
FSHR 2039A > G effects were approximately 2 to 3 times smaller. Since oligozoospermic patients carrying unfavourable variants affecting FSH action may benefit from
FSH treatment, both SNPs are promising
candidates to make their way into the routine
clinical workup of the male with oligozoospermia. However, first, controlled treatment studies are urgently warranted.
The study was supported by a Research Group
Linkage grant (to J.G. and M.L.) from the
Alexander-von-Humboldt foundation and by the
Deutsche Forschungsgemeinschaft (grant TU
298/1-1 to F.T.).
10
Accumulation of Chymase-Positive Testicular Mast Cells in Infertility Patients and Evidence for
Local Angiotensin II Effects
H. Welter1, A. Huber1, S. Lauf1, J. Schwarzer2, F. Köhn3,
A. Mayerhofer1
1Anatomy and Cell Biology, LMU, Munich; 2AndrologyCentre, Munich; 3Andrologicum, Munich, Germany
Question Testicular mast cells (MCs) are
significantly increased in number in the testes of men with impaired spermatogenesis.
This insight is based on gene expression
studies and immunohistochemical analysis
of tryptase, the major MC product [Meineke
et al., 2000]. The phenotype of testicular
MCs may change, depending on their location and the underlying pathology [Welter et
al., 2011] but whether the enzyme chymase
(CHY) is present in testicular MCs is not
fully known. CHY promotes differentiation
and growth of interstitial connective tissue
[Hirata et al., 2007]. It can cleave angiotensin I (Ang I) to Ang II, which may be involved in contraction and growth of peritubular myoid cells [Rossi et al., 2002].
However, Ang II can also fuel inflammatory
responses in vascular smooth muscle cells
[Li et al., 2009 and supports tissue fibrosis
[Fan et al., 2009; Rüster and Wolf, 2011].
J Reproduktionsmed Endokrinol 2012; 9 (5)
323
ECA – Abstracts
total testosterone declined ca. 6% per decade, INSL3 declined ca. 12% per decade,
reflecting again that there is no compensatory acute regulation by the HPG axis, and
that INSL3 is a direct estimate of Leydig cell
functional capacity. In fact INSL3 was more
strongly correlated with total testosterone
than any other factor, including LH, suggesting that INSL3 might be a more robust predictor than testosterone of testis status in the
context of metabolic syndrome or late-onset
hypoandrogenemia. Current studies are aiming to confirm this, and also to broaden the
application of INSL3 measurement to a more
precise assessment of pubertal development
in boys. In regard to INSL3 detection in amniotic fluid, we have shown a significant response at 12–14 weeks gestation to later
symptoms of preeclampsia and IUGR,
strongly suggesting that INSL3 concentration reflects male fetal health in early pregnancy. It remains to be evaluated whether
this is also relevant for postnatal health outcomes.
ECA – Abstracts
7th ECA-Congress – Abstracts
Hence, the present study was performed to
further characterize testicular MCs and to
explore the effects of Ang II on cultured human testicular peritubular cells (HTPCs).
Methods Testicular biopsies of patients
with germ cell arrest (GA), mixed atrophy
(MA), Sertoli cell only (SCO) syndrome as
well as patients with normal spermatogenesis were stained immunohistochemically
with an anti-CHY antibody. Cultured HTPCs
were used to study Ang II effects on contractile abilities. The inflammatory potential of
Ang II was explored by RT-PCR.
Results CHY-positive MCs were hardly
seen (0.03–0.49 per tubule) in samples with
normal spermatogenesis. If present, they
were mainly found in the interstitial spaces.
CHY-positive MCs were increased in patients with MA (0.37–1.04/tubule) and GA
(0.37–0.84 per tubule) and were most abundant in SCO (1.29–3.88 per tubule). In MA,
the peritubular wall was identified as the
principal site of CHY-positive MCs implying interactions between MCs and peritubular cells.
AT1R mRNA was detected in HTPCs, which
contracted upon Ang II stimulation (n = 2
patients). On-going cell culture studies indicate that Ang II rapidly induces IL-6 and
TLR-4 mRNA, while co-incubation of Ang II
with the blocker losartan attenuates this
Ang II effect.
Conclusions These preliminary data show
that CHY-positive MCs increase in infertility patients. Thus MCs, via CHY and via
Ang II may induce contraction of peritubular
cells. Furthermore it is possible that the observed proinflammatory action of Ang II
may contribute to male infertility.
(DFG MA 1080/21-1).
 Short Oral Presentation 2:
Hypogonadism, Metabolic
Syndrome and Reproductive Function
11
Sustained Improvement of Features of the Metabolic Syndrome
upon Normalization of Serum Testosterone in Hypogonadal Men –
Follow-up up to 5 years
A. Haider1, F. Saad2, 3
Private Urology Practice, Bremerhaven; 2Bayer Pharma
AG, Global Medical Affairs Andrology, Berlin, Germany;
3
Gulf Medical University School of Medicine, Research
Department, Ajman, UAE
1
Objectives Hypogonadal men tend to increase body weight, fat mass and develop
features of the metabolic syndrome. Longterm effects of normalization of testosterone
in hypogonadal men on weight, waist circumference and lipid metabolism, liver functions upon treatment with parenteral testosterone undecanoate were studied.
324
J Reproduktionsmed Endokrinol 2012; 9 (5)
Methods A cumulative registry study of
255 men (mean age: 60.6 ± 8.0 years), with
testosterone levels between 0.14–3.51 ng/mL
with late onset hypogonadism (LOH).
Results A remarkable progressive and
sustained decline of body weight and waist
circumference over 5 years was observed.
Fasting glucose decreased from 103.38 ±
14.44 mg/dL to 97.54 ± 2.34 (p < 0.0001).
The proportion of patients who had glucose
levels ≥ 100 mg/dL decreased from 45% at
baseline to 16% at 60 months. HbA1c was
measured in 125 patients and decreased from
6.94 ± 1.55% to 6.01 ± 1.41%. Total cholesterol decreased from 281.58 ± 39.8 mg/dL to
188.12 ± 11.31 (p < 0.0001), LDL from
163.79 ± 41.44 mg/dL to 109.84 ± 35.41
(p < 0.0001), triglycerides from 276.16 ±
51.32 mg/dL to 189.78 ± 11.33 (p < 0.0001).
HDL was stable over the first 2 years (62 mg/
dL at baseline and 63.26 at 24 months)
and then declined to 52.45 at 60 months
(p < 0.0001 vs baseline). Mean systolic blood
pressure declined from 153.55 ± 17.6 mmHg
to 137.74 ± 10.92 (p < 0.0001) and diastolic
blood pressure from 93.49 ± 11.21 mmHg to
79.61 ± 7.35 at 60 months (p < 0.0001). At
baseline, 91% of men had a systolic blood
pressure of ≥ 130 mmHg which declined to
80% after 60 months. At baseline, 75% of men
had a diastolic blood pressure of ≥ 85 mmHg
declining to 22% at 5 years.
Conclusions Normalization of serum testosterone leads to a sustained improvement of
all components of the metabolic syndrome.
12
Hypogonadism as a Risk Factor
for Cardiovascular Mortality in
Men: a Meta-Analytic Study
G. Rastrelli1, G. Corona1, 2, M. Monami3, A. Guay4,
J. Buvat5, A. Sforza2, G. Forti1, E. Mannucci3, M. Maggi1, 3
1Clinical Physiopathology, University of Florence;
2
Maggiore Hospital, Bologna; 3University of Florence,
Italy; 4Lahey Clinic Medical Centre, Peabody (MA),
USA; 5 Centre d’Etude et de Traitement de la Pathologie
de l’Appareil Reproducteur et de la Psychosomatique
(CETPARP), Lille, France
Question To verify whether hypogonadism
represents a risk factor for cardiovascular
(CV) morbidity and mortality and to verify
whether testosterone replacement therapy
(TRT) improves CV parameters in subjects
with known CV diseases (CVDs).
Methods An extensive Medline search was
performed using the following words “testosterone”, “CVD”, and “males”. The search
was restricted to data from January 1, 1969,
up to January 1, 2011.
Results Of the 1178 retrieved articles, 70
were included in the study. Among crosssectional studies, patients with CVD have
significantly lower testosterone and higher
17-β estradiol (E2) levels. Conversely, no
difference was observed for DHEAS. The
association between low testosterone and
high E2 levels with CVD was confirmed in
a logistic regression model, after adjusting
for age and body mass index (hazard ratio
[HR] = 0.763 [0.744–0.783] and HR = 1.015
[1.014–1.017], respectively, for each increment of total testosterone and E2 levels; both
p < 0.0001). Longitudinal studies showed
that baseline testosterone level was significantly lower among patients with incident
overall- and CV-related mortality, in comparison with controls. Conversely, we did not
observe any difference in the baseline testosterone and E2 levels between case and controls for incident CVD. Finally, TRT was
positively associated with a significant increase in treadmill test duration and time to
1 mm ST segment depression.
Conclusions Lower testosterone and higher
E2 levels correlate with increased risk of
CVD and CV mortality. TRT in hypogonadism moderates metabolic components associated with CV risk. Whether low testosterone is just an association with CV risk, or an
actual cause-effect relationship, awaits further studies.
13
Body Mass Index Regulates Hypogonadism-Associated CV risk: Results from a Cohort of Subjects
with Erectile Dysfunction
G. Corona1, G. Rastrelli1, M. Monami2, A. Sforza3,
E. Mannucci2, G. Forti4, M. Maggi1
1Sexual Medicine and Andrology Unit, Department of
Clinical Physiopathology, University of Florence; 2Diabetes Section Geriatric Unit, Department of Critical Care,
Florence; 3Endocrinology Unit, Azienda Usl Bologna,
Medical Department, Bologna; 4Endocrinology Unit,
Department of Clinical Physiopathology, University of
Florence, Florence, Italy
Introduction Obesity is an independent cardiovascular (CV) risk factor. Testosterone
(T) is inversely related to body mass index
(BMI) in males. There is substantial evidence suggesting that low T could play a role
as a moderator of CV mortality in men. This
study is designed to assess the possible interaction between T and obesity in predicting
major cardiovascular events (MACE) in a
sample of subjects with erectile dysfunction.
Methods A consecutive series of 1687 patients was studied. Different clinical, biochemical and instrumental parameters were
evaluated. According to BMI, subjects were
divided into normal weight (BMI = 18.5–
24.9 kg/m2), overweight (BMI = 25.0–
29.9 kg/m2) and obese (BMI ≥ 30.0 kg/m2).
Hypogonadism was defined as total T below
10.4 nmol/L. Information on MACE was
obtained through the City of Florence Registry Office. Information on MACE was obtained through the City of Florence Registry
Office.
Results Among the patients studied, 39.8%
had normal weight, whereas 44.1% and
16.1% were overweight or obese, respectively. Unadjusted analysis in the whole
sample showed that, while hypogonadism
and obesity were significantly associated
with an increased risk of MACE, their interaction term was associated with a protective
effect. In a Cox regression model, adjusting
for confounders, hypogonadism showed a
significant increased risk of MACE in normal weight subjects, whereas it was associated with a reduced risk in obese patients.
Conclusions Hypogonadism-associated
CV risk depends on the characteristics of
subjects, being more evident in normal
weight than in obese patients. Further studies
are advisable to clarify if low T in obese patients is a (positive) consequence of a
comorbid condition (i.e. to save energy) or if
it represents a pathogenetic issue of the same
illness. Hence, possible misuse/abuse of testosterone treatment in obese subjects must be
avoided.
14
Obesity, Insulin Resistance and
their Correlation with Testosterone
level in Caucasian Male Patients
S. Janjgava1, 2, E. Giorgadze1, 2, K. Asatiani1, L. Uchava1, 2,
T. Zerekidze1, 2, M. Lomidze1, 2, T. Doliashvili1, 2
1Department of Andrology, National Institute of Endocrinology; 2Department of Endocrinology, Tbilisi State
University Tbilisi, Georgia
Introduction Obesity is widely recognized
as an important public health problem; its
prevalence has increased substantially in the
recent decades. The relationship between
obesity and testosterone levels is one of the
longest running controversies in endocrinology. The data of several studies prove, that
there is a consistent correlation among the
low testosterone level, insulin resistance and
the risk of type 2 diabetes mellitus.
Aim The objective of the study is to show
correlation with obesity, insulin resistance
and testosterone level in male patients. We
also study the influence of testosterone replacement therapy on obesity and insulin resistance in men.
Materials & Methods 97 subjects with 30–
65 years and BMI 27,0–48,0 kg/m2 were enrolled in the study. The following analyses
were done: anthropometric study, biochemical measurements, ultrasonography of the
abdomen and prostate. According to the laboratory and clinical condition we divided patients into three groups. The appropriate
treatment was prescribed to all patients.
1. First group with obesity and androgen deficiency were we used diet and physical activity.
2. Second group with androgen deficiency,
obesity and insulin resistance, we used diet,
physical activity and metformin.
3. Third same group as second group with
androgen deficiency, obesity and insulin resistance, we used testosterone, metformin,
diet and physical activity.
Results In all investigated patients abnormal lipid profile and increased level of leptin
was observed, all patients had decreased
level of free testosterone and had inversely
correlated with the degree of obesity and insulin resistance. After three months of treatment: We had some positive results cholesterol, triglyceride and LDL levels decreased,
and HDL increased. Free testosterone level
increased in all groups but the best results
was in III group which was treated by diet,
physical activity, metformin and testosterone. HOMA-IR decreased in all group but
I and III group had alike result. BMI decreased in all groups but bets results was in
III group. leptin level after treatment was approximately same in all groups, but compared best results was achieved in III group.
Conclusion As our small study had shown
testosterone therapy reduces insulin resistance and obesity in male patients and also
decrease total cholesterol level. These observations suggest that an inverse relationship
exists between serum androgens, obesity and
insulin sensitivity.
15
Insulin Resistance is associated
with Increased Seminal Plasma
Insulin Concentrations and Reduced Semen Parameters in
Obese Patients
K. Leisegang1, 2, R. Henkel2, P. Bouic3, A. Udodong2
1Natural Medicine; 2Medical Bioscience, University of
the Western Cape, Bellville; 3Pathology, University of
Stellenbosch, Tygerberg, South Africa
Male obesity is associated with both infertility and insulin resistance (IR). Moreover, insulin is a central regulator of gonadal and
sperm functions. As insulin concentrations
in seminal fluid of obese males have not been
previously investigated, this case-controlled
study assayed serum and seminal insulin and
glucose concentrations in obese and nonobese participants. A total of 37 males were
divided into an obese (BMI ≤ 29.9; n = 20)
and non-obese (BMI ≥ 30; n = 17) group.
Blood samples were assayed for glucose
(FBG) and insulin (FBI). IR was determined
by the QUICKI. Semen samples were analyzed for sperm concentration, progressive
motility, total motility, vitality, leukocytes,
glucose (SG) and insulin (SI) concentrations.
Subjects with leukocytospermia (> 106/ml),
on hormonal therapy or any reproductive
disorder were excluded. However, diabetics
not on insulin were included (n = 3) in the
study. Ages between the groups were
matched. BMI, FBI and QUICKI significantly differed between the groups (p = 2 =
0.41), and negatively with total (r2 = –0.4)
and progressive motility (r2 = 0.44) and vitality (r2 = –0.37). BMI correlated positively
with SI (r2 = 0.54) and negatively with progressive motility (r2 = –0.33) and vitality
(r2 = –0.37). FBG correlated negatively with
total (r2 = -0.33) and progressive motility
(r2 = –0.33) and vitality (r2 = –0.34). SG
correlated negatively with total motility
(r2 = –0.41) and vitality (r2 = –0.33). QUICKI
correlated negatively with BMI (r2 = –0.74)
and positively with sperm concentration
(r2 = 0.42) and progressive motility (r2 = 0.03).
FBI strongly correlated positively with SI
(r2 = 0.71) and negatively with sperm concentration (r2 = –0.33). SI:FBI ratio correlated positively with SI (r2 = 0.46).
Results demonstrate that obesity and IR are
associated with reduced sperm parameters.
Increased FBI and SI may directly or indirectly affect spermatogenesis or hormonal
function as it regulates Leydig, Sertoli and
sperm cell function. Insulin is highly concentrated in seminal fluid, and this requires
further physiological explanations. Increased
FBI and SI may provide novel avenues for
investigation of the mechanisms of obesity
associated infertility, and clinical evaluation
of IR may be beneficial in the investigation
of subfertile male partners.
16
Impact of Metabolic Syndrome on
Male Fertility Parameters
A. Pilatz1, I. Halefeldt1, A. Rusz2, D. Schultheiss3,
W. Weidner1, F. Wagenlehner1, T. Linn4
1
Urology, Pediatric Urology and Andrology, JustusLiebig-University Giessen, Germany; 2Urology and
Andrology, State Health Centre-Military Hospital,
Budapest, Hungary; 3Urology, Protestant Hospital,
Giessen, Germany; 4Clinical Research Unit, 3rd Medical Clinic and Policlinic, Justus-Liebig-University
Giessen, Germany
Introduction & Objective Overweight and
obesity are frequently associated with interrelated disorders including visceral obesity,
hyperglycaemia, dyslipidaemia, and hypertension, defined as metabolic syndrome
(MetS). MetS is well-known to be associated
with a chronic systemic inflammatory reaction. However, the impact of MetS on the
urogenital tract in terms of inflammation and
its association with semen parameters is
largely unknown.
Methods In a prospective study* we enrolled
18 men with MetS and 13 age-matched male
controls from the general population. In all
patients the complete medical history was
recorded and the body mass index (BMI) calculated. Fasting glucose and insulin were
determined to calculate the homeostasis
model assessment (HOMA index). Blood
analysis for systemic inflammatory markers
included sensitive C-reactive protein (sCRP)
and adiponectin. The sex hormones luteinizing hormone (LH), follicle-stimulating hormone (FSH), testosterone and estradiol were
measured. Semen analysis was performed
according to WHO 2010 recommendations
including volume, pH, sperm concentration,
progressive motility, normal morphology,
peroxidase-positive leukocytes, and granulocyte elastase. Statistical analysis was performed using the Wilcoxon test.
Results Compared to controls, in patients
with MetS BMI and HOMA index were significantly increased (for both p < 0.001) as
well as sCRP (p < 0.05). In addition, testosterone was significantly reduced (p < 0.001)
and inversely estradiol elevated (p < 0.05).
No significant changes were noted for FSH,
LH and all semen parameters investigated
(Tab. 1).
Conclusions We provide evidence for a
systemic inflammation associated with impaired sex hormones in patients with MetS.
Further enrolment of patients and controls is
J Reproduktionsmed Endokrinol 2012; 9 (5)
325
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
Table 1. A. Pilatz et al. Metabolic, Hormonal and Semen Parameters in Patients with MetS
(n = 18) and Controls (n = 13).
ECA – Abstracts
Parameter
MetS
median (range)
Controls
median (range)
p
Age (years)
44 (30–57)
42 (32–62)
0.373
BMI (kg/m2)
38.4 (27.2–63.2)
26.5 (21.5–29.5)
< 0.001
HOMA index
4.6 (2.1–12.8)
1.0 (0.7–1.4)
< 0.001
sCRP (mg/l)
4.3 (1.3–12.6)
0.8 (0.1–8.2)
< 0.050
Adiponectin (µg/ml)
6.1 (2.6–10.8)
9.6 (4.0–11.5)
0.094
FSH (mU/ml)
3.8 (1.8–12.1)
4.3 (2.3–14.9)
0.299
LH (mU/ml)
Testosterone (ng/dl)
3.4 (1.7–9.6)
2.9 (1.8–4.3)
0.131
280 (134–494)
441 (233–726)
< 0.001
< 0.050
Estradiol (pg/ml)
38 (6–63)
26 (13–38)
Semen volume (ml)
2.6 (0.2–8.5)
3.1 (1.0–4.9)
0.499
Semen pH
8.2 (7.6–8.8)
7.8 (7.3–8.7)
0.107
Sperm concentration (Mio/ml)
52 (0.2–379)
63 (14–404)
0.679
49 (16–64)
43 (9–72)
0.478
Progressive motility (%)
Normal morphology (%)*
4 (0–14)
5 (2–14)
0.223
Peroxidase + Leukocytes (Mio/ml)
0.1 (0.0–0.9)
0.2 (0.0–0.7)
0.811
Elastase (ng/ml)
145 (10–885)
56 (10–526)
0.280
* according to strict criteria
necessary to evaluate possible negative influences of MetS on semen parameters.
* Supported by LOEWE (excellence initiative of
the state government of Hessen, Germany) focus
group MIBIE (Male Infertility during Infection
and Inflammation) project B4.
17
Testosterone Protects from Metabolic Syndrome-Associated Prostate Inflammation: an Experimental Study in Rabbits
L. Vignozzi1, A. Morelli1, P. Comeglio1, S. Filippi1,
B. Vannelli1, F. Saad2, E. Maneschi1, I. Cellai1, L. Adorini3,
M. Maggi1
1Clinical Physiopathology, University of Florence,
Italy; 2Scientific Affairs Men’s Healthcare, Bayer
Pharma AG, Berlin, Germany; 3Intercept Pharmaceuticals Italia Srl, New York, USA
Background Metabolic syndrome (MetS)
and BPH/LUTS are often associated. One of
their common denominators is hypogonadism. However, testosterone (T) supplementation is limited by concerns for potential
prostatic side effects.
Objective To determine whether MetS-associated prostate alterations are prevented by
T supplementation.
Methods We used a previously described
animal model of MetS, obtained by feeding
male rabbits a high fat diet (HFD) for 12weeks. Subsets of HFD rabbits were treated
with T or with the farnesoid-X receptor agonist INT-747. Rabbits fed a standard diet
were used as controls.
Results HFD-animals develop hypogonadism and all the MetS-features: hyperglycaemia, glucose intolerance, dyslipidemia,
hypertension, visceral obesity. In addition,
HFD-animals show a prostate inflammation.
Immunohistochemical analysis demonstrated
326
J Reproduktionsmed Endokrinol 2012; 9 (5)
that HFD induced prostate fibrosis, hypoxia,
and inflammation. The mRNA expression of
several proinflammatory (IL-8, IL-6, IL-1β,
TNFα), T-lymphocyte (CD4, CD8, Tbet,
Gata3, ROR γt), macrophage (TLR2, TLR4,
STAMP2), neutrophil (lactoferrin), inflammation (COX2, RAGE), and fibrosis/myofibroblast activation (TGFβ, SM22-α, αSMA, RhoA, ROCK1/ROCK2) markers was
significantly increased in HFD-prostate. T,
as well as INT-747, treatment prevented
some MetS-features, although only T normalized all the HFD-induced prostate alterations. Interestingly, the ratio between testosterone and estradiol plasma level retains a
significant, negative, association with all the
fibrosis and the majority of inflammatory
markers analyzed.
Conclusion These data highlight that T protects rabbit prostate from MetS-induced prostatic hypoxia, fibrosis and inflammation,
which can play a role toward the development/progression of BPH/LUTS.
18
Negative Association between
Levels of Testosterone and Inflammatory Markers in Young Men
J. Bobjer1, M. Katrinaki2, C. Tsatsanis2, Y. Lundberg
Giwercman3, A. Giwercman1
1Reproductive Medicine Research Group, Clinical
Sciences Malmö, Lund University, Malmö, Sweden;
2School of Medicine, University of Crete, Heraklion,
Crete, Greece; 3Molecular Genetic Reproductive
Medicine, Clinical Sciences Malmö, Lund University,
Malmö, Sweden
Introduction Low grade systemic inflamma-
tion (LGSI) as well as androgen deficiency
has in older men been associated with several
pathologies including cardiovascular disease
(CVD). However, the direction of causality
connecting these conditions is not clarified.
We hypothesized that low testosterone levels
can cause LGSI. To test this hypothesis, we
investigated the association between testosterone levels and expression of markers of inflammatory response in young men without
any manifestations of CVD.
Material & Methods In a nested cross-sectional study, forty subfertile hypogonadal
(n = 20) or eugonadal (n = 20) subjects
(mean age 37 years, SD = 4.3) and 20 agematched controls were randomly selected.
Blood sampling, interviews and anthropometric measures were undertaken. Serum
levels of testosterone, LH, estradiol, SHBG
and 20 LGSI-markers were assessed. Linear
regression models, with adjustment for age
and fertility status were used.
Results Among 20 inflammatory markers,
MIP-1α (β = –0.026; p = 0.029), MIP-1β (β =
–0.015; p = 0.049) and TNF-α (β = –0.015;
p = 0.040) showed negative association to
total testosterone (TT) levels. MIP-1α (β =
–1.985; p = 0.001) and TNF-α (β = –0.947;
p = 0.014) showed negative association to calculated free testosterone (cFT) levels. In comparison to men with normal TT and cFT levels, TNF-α levels were higher in men with subnormal levels of TT (ratio 0.62; p = 0.006)
and cFT (ratio 0.63; p = 0.007). Also, MIP1α levels were higher in men with subnormal
levels of TT (mean ratio 0.54; p = 0.033).
Conclusions The hypogonadal men had
significantly higher levels of inflammatory
markers that are related to the risk of CVD
than eugonadal counterparts. This supports
the hypothesis that subnormal testosterone
already in young age evokes LGSI, which
might be contributing to the risk of CVD and
other long term complications of male hypogonadism.
 Short Oral Presentation 3:
Sexual Dysfunction, Sexual
Medicine, Andrological Implications of Genital Tract
Infections
21
Alpha-haemolytic Strains of Uropathogenic E. coli Prematurely Activate the Acrosome Reaction and
Induce DNA Damage in Sperm
T. Lang1, M. Dechant1, V. Sanchez2, J. Wistuba2, A.
Pilatz3, G. Schuler4, S. Bhushan1, S. Tchatalbachev5,
F. Wübberling6, M. Burger6, C. Mallidis2, A. Meinhardt1
1Anatomy and Cell Biology, Justus-Liebig-University
Giessen; 2Centre for Reproductive Medicine and
Andrology, Univeristy Clinic, Muenster; 3Clinic for
Urology and Andrology; 4Obstetrics, Gynecology and
Andrology; 5Institute for Medical Microbiology, JustusLiebig-University, Giessen; 6Institute of Applied Computational Mathematics, University of Muenster,
Germany
Introduction Infection and inflammation of
the urinary tract are considered the aetiology
in 10–15% of male infertility cases. In ap-
proximately 40% of patients suffering unilateral acute epididymitis, persistent impaired semen quality is observed even after
successful antimicrobial treatment. Recent
investigations have identified that 50% of
bacterial related epididymitis is due to the
presence of α-haemolysin (hlyA) producing
Uropathogenic E. coli (UPEC). To date no
extensive characterisation of these pathogenic strains, or their toxin has been conducted. Our aim was to elucidate the consequences of hlyA on sperm integrity using a
UPEC induced murine experimental epididymitis model.
Methods & Materials To evaluate the con-
sequences of hlyA on acrosome integrity in
vitro, sperm collected from C57BL/6N mice
were infected with either an α-haemolytic
E. coli strain (UPEC CFT073 or FOS 22),
a non-haemolytic E. coli strain (NPEC 470,
UPEC HDM536 or Epi 300) or left untreated. Acrosome integrity was assessed by
Spermac™ staining. The murine experimental epididymitis model was established by
injection of a total of 40,000 UPEC CFT073
or NPEC 470 cells into both left and right
vas deferens of C57BL/6N mice. PBS was
used as sham control. Three days after infection, animals were sacrificed, blood taken,
the epididymides removed and sperm collected. Testosterone was measured by radioimmunoassay. Intact epididymides were either placed in Bouin’s solution and embedded in paraffin for H&E staining, or snap
frozen. E. coli were detected using immunofluorescent staining. Spag11b gene expression was quantified by qPCR. Alterations in
the chemical constituents of the sperm head
were identified using Raman microspectroscopy and sperm nDNA integrity assessed
by flow cytometry.
Results We found both types of E. coli det-
rimentally influenced epididymal function,
as illustrated in vivo by significantly reduced
levels of circulating testosterone and reduced expression of androgen-dependent
Spag11b. Our findings revealed α-haemolytic UPEC CFT073 prematurely activates
the acrosome following in vitro and in vivo
infection in contrast to PBS and NPEC 470.
In addition, UPEC CFT073 infected mice
had higher numbers of sperm with nDNA
damage, evidence of lipid peroxidation in
the form of malondialdehyde and perturbations of the DNA backbone consistent with
fragmentation.
Conclusion For the first time we provide evidence that directly implicates hlyA in the subversion of sperm integrity. We found hlyA to
have multiple effects undermining not only
the hormonal (testosterone, Spag11b) milieu
but also sperm’s functional (acrosome) and
structural (nDNA) integrity. Furthermore, our
findings provide insight into possible mechanisms by which hlyA causes damage. The existence of lipid peroxidation (malondialdehyde) is indicative of the consequences of
oxidative stress and more particularly attack
by ROS. Hence, our findings provide new insights into the consequences and possible processes underlying the clinical manifestations
of acute epididymitis.
22
The Value of Prostate Biopsy in
Diagnosis of Urotuberculosis
E. Kulchavenya, E. Brizhatyuk, D. Kholtobin, A. Osadchiy
Research TB Institute, Novosibirsk, Russian Federation
Introduction 77% men who died from TB,
had prostate TB, mostly overlooked alive.
Prostate TB is a sexually transmitted disease,
leads to infertility, results in chronic pelvic
pain, decreases a sexual function. The aim of
study was to estimate a diagnostic value of a
prostate biopsy for prostate TB.
Material & Methods 93 patients suspicious
on prostate TB were enrolled in study. All
underwent ultrasound guided core prostate
biopsy with local anaesthesia. Straws were
investigated by PCR, pathomorphology and
culture.
Results Common complaints were pain
(96.8%), dysuria (79.6%); laboratory findings: leucospermia 73.1%, haemospermia
51.6%. 37.6% had TB history, 34.4% had
active TB of another localization, mostly
pulmonary. Results of PCR: HPV 10.7%,
Ureaplasma 2.2%. Mycobacteria culture was
positive in 6.9%. Pathomorphologically in
94.6% inflammation was found, in 65.6% fibrosis, in 9.7% intraprostatic neoplasia, in
5.4% cancer, in 24.7% TB.
Conclusion The diagnosis of prostate TB is
a very difficult task, because clinical features
and laboratory signs are non-specific, alike
chronic prostatitis. Absolutely pathognomonic symptom is a cavern on urethrogram,
but caverns mean late-diagnosed complicated form, cavernous prostate TB cannot be
cured neither chemotherapy nor by surgery.
Prostate TB in early infiltrative non-cavernous stage may be diagnosed by PCR, culture
or pathomorphology. Possibility of these
methods alone is poor, it is necessary to use
its in combination.
23
Bacteria and Leukocytes as Inducers of Molecular Changes in Human Ejaculated Sperm Plasma
Membranes During In Vitro Semen
Infection
M. Fraczek1, M. Boksa1, A. Czernikiewicz1, M. Piasecka2,
A. Szumala-Kakol3, T. Kolanowski1, A. Kazienko2,
D. Gaczarzewicz4, M. Kurpisz1
1Department of Reproductive Biology and Stem Cells,
Institute of Human Genetics, Pol. Acad. Sci., Poznan;
2Department of Histology and Developmental Biology,
Pomeranian Medical University, Szczecin; 3Unit of
Microbiology, Hospital Medical College, Poznan;
4Department of Animal Reproduction, University of
Agriculture, Szczecin, Poland
occurring in the course of semen bacterial
infection.
Material & Methods Three bacterial isolates (Escherichia coli, Staphylococcus
haemolyticus and Bacteroides ureolyticus),
were chosen for the study. Leukocytes were
isolated from the whole heparinized blood
using a density gradient centrifugation technique (Histopaque-1.077). Sperm pellets obtained from normozoospermic volunteers
were incubated with bacterial strains and/or
leukocytes for 2h at 37°C. Sperm plasma
membrane integrity was assessed by the
LIVE/DEAD Sperm Viability Kit (SYBR14
and propidium iodide – PI), by the merocyanine-540 (M540) test, and by the hypoosmotic swelling (HOS) test. The level of
lipid sperm membrane peroxidation was assessed determining the concentration of
malondialdehyde (MDA) in sperm lysates
using high-performance liquid chromatography (HPLC). The Annexin V-FITC Kit was
used for PS externalization analysis.
Results The presence of B. ureolyticus was
associated with a significant increase in the
percentage of dead (PI-positive) spermatozoa as compared to untreated cells (p < 0.01).
In general, the addition of leukocytes resulted in increase in the percentage of PIpositive sperm, regardless of bacterial strain
applied. All the bacterial strains used alone
or together with leukocytes affected sperm
plasma membrane architecture measured by
M540 test (p < 0.01). Out of the bacterial
strain tested, B. ureolyticus caused significantly decrease in sperm swelling as compared to the control (p < 0.05). The presence
of leukocytes in co-incubated mixture was associated with further decrease in sperm swelling primarily caused by anaerobes (p < 0.01).
Escherichia coli and B. ureolyticus had the
greatest influence on MDA concentration in
spermatozoa membranes (p < 0.001). Again,
the leukocytes, additionally increased the
harmful effect of bacteria. As for Annexin V
test, there was no statistical differences as
compared to untreated spermatozoa (control).
Conclusions The range of sperm membrane
alterations seems to depend on the type of
pathogen and the presence/absence of leukocytes. The presence of the latter in semen
may be the additional factor worsening the
structural and functional sperm plasma
membrane integrity during semen infection/
inflammation. A microbiological examination of semen samples should be recommended not only for aerobic but also for
anaerobic bacteria.
Study financed by grants no NN407283539, NR
13006606.
Introduction An in vitro model of semen
inflammation created in this study was intended to assess the influence of selected
bacterial strains and/or leukocytes on sperm
plasma membrane integrity. The complex
examination proposed in the present study
may allow us to achieve a more clear picture
of subcellular changes in sperm membranes
J Reproduktionsmed Endokrinol 2012; 9 (5)
327
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
24
The Global Online Sexuality Survey: Sexual Function and Dysfunction in USA
O. Shaeer, K. Zaki Shaeer
Andrology, Faculty of Medicine, Cairo University,
Egypt
Question The Global Online Sexuality Sur-
vey (GOSS) is a world-wide epidemiologic
study of sexuality and sexual disorders, investigating cultural characteristics and uniqueness, and comparing sexuality across cultures and races, launched in the Middle East
in 2010, and USA in 2011. The current study
investigates the rates of erectile dysfunction
(ED), premature ejaculation (PE), their predisposing risk factors and treatment trends,
preferences for sexual positions, polygamy,
the value of penile size, and much more.
Methods GOSS was randomly deployed to
English-speaking male web surfers in USA
via advertising on Facebook®, comprising
146 questions.
Results 2022 males participated in the survey from the United States of America, completing the survey to variable extents. 37.7%
suffered ED as per IIEF-5. Adjusted to the
World Standard Population by the World
Health Organization the collective prevalence was 33.7%. 49.6% of the population
surveyed were diagnosed as having PE as per
PEDT. Age adjusted prevalence of PE was
51.3%.
Participants used phosphodiesterase inhibitors (PDEis) on more consistent basis in
23.7%, increasing progressively with age.
Participants diagnosed with erectile dysfunction (ED) used PDEis in 37.5%, while
those without ED used them in 15.6%; recreational use, the motivation for which was
analyzed. PDEis were mostly utilized on prescription basis, and so was the choice for the
brand of PDEi. PDEis were mostly purchased from pharmacies (72.7%), followed
by online purchase (16.5%). However, 5.3%
of pharmacy sales of PDEis were without
prescription, and 9.6% of those utilizing
PDEis without prescription happened to
have coronary heart disease. Efficacy of
PDEis, experienced and theoretical side effects were also reported, with unrealistic
concerns over safety detected.
The three most preferred sexual positions
were the missionary position, the female on
top and the rear vaginal entry positions. The
most commonly practiced sexual position
was the missionary position, with the latter
two practiced much less than preferred. Anal
intercourse was the least preferred and practiced, though practiced by 20.6%. 52% reported having had more than one partner in
parallel (informal polygamy). 39.3% reported never using condoms on casual sexual
encounters. 28.8% reported the use of one or
more contraceptive measure for birth control. The most frequently used was condom,
though least preferred. Vasectomy and female contraceptive measures were the most
favored.
328
J Reproduktionsmed Endokrinol 2012; 9 (5)
Conclusion Sexuality in the United States
of America as of 2011/2012 is extensively
analyzed.
25
Associations between Asymptomatic Prostatitis and Erectile Dysfunction in Ageing Male
K. Ausmees1, 2, R. Mändar3, P. Korrovits3, 4, G. Timberg2,
M. Punab1,4
1Department of Surgery; 2Urology Unit, Clinic Medita;
3
Department of Microbiology; 4Andrology Centre,
Tartu University Hospital, Tartu, Estonia
Question Asymptomatic inflammation as
new category of prostatitis is often found
during evaluation of other reproductive and
sexual disorders. The aim of this study was
to determine the associations between asymptomatic prostatitis and erectile dysfunction (ED) in ageing male.
Methods A total of 132 men (mean age
58.9 ± 6.7 years) undergoing health screening were investigated for prostate-specific
symptoms and sexual function, white blood
cells (WBC) in expressed prostatic secretion
(EPS) and post-prostatic massage urine
specimen, total prostate volume, urinary
flow rate and for certain organ-specific, hor-
monal and biochemical markers. Men with
clinical symptoms of prostatitis were excluded. Subjects were divided into 3 groups:
men without leukocytes in EPS (< 0.2 × 106
WBC/mL, group 1), men with moderate
(0.2–1 × 106 WBC/mL, group 2) and significant (>1 × 106 WBC/mL, group 3) counts of
white blood cells in EPS.
Results We found statistical difference in
International Index of Erectile Function-5
(IIEF-5) score for all investigated groups
(p = 0.048). The prevalence of erectile dysfunction (IIEF-5 score < 22) was 72.7%,
73.8% and 85.4% for group 1, 2 and 3, respectively.
The IIEF-5 score showed a positive correlation with maximum flow rate (r = 0.331,
p = < 0.001) and a negative correlation with
WBC count in EPS (r = -0.24; p = 0.006) and
PSA level in serum (r = -0.225; p = 0.01).
Conclusions Our preliminary results suggest that asymptomatic prostatitis may be
one of the risk factors for ED (and other
sexual disorders).
However, the future research should directly
define the relationships between (asymptomatic) prostatitis and erectile dysfunction as
well as examine the effect of treatment in
ageing male with prostatitis and sexual problems (Tab. 2).
Table 2. K. Ausmees et al. Selected characteristics of men undergoing screening of
reproductive health.
Group 1
< 0.2 × 106 WBC/ml
Group 2
0.2–1 × 106 WBC/ml
Group 3
≥ 1 × 106 WBC/ml
p-Value
No. patients (%)
53 (40.2)
40 (30.3)
39 (29.5)
Prevalence of ED (%)
40 (75.5)
31 (77.5)
35 (89.7)
Mean age ± SD (yr)
57.8 ± 6.3
59.9 ± 6.8
59.1 ± 7.1
0.252
Abstinence time before
EPS (days)
– Median
– Mean ± SD
5.0
5.5 ± 3.3
6.0
7.6 ± 5.3
5.0
8.3 ± 6.1
0.135
WBC in EPS (per ml)
– Median
– Mean ± SD
0.2
0.05 ± 0.06
0.5
0.5 ± 0.2
2.2
5.9 ± 5.9
< 0.001
IIEF-5 total score
– Median
– Mean ± SD
19.0
18.3 ± 4.4
19.0
16.0 ± 6.6
16.0
14.7 ± 6.4
0.021
Testosterone (nmol/l)
– Median
– Mean ± SD
16.4
15.2 ± 6.0
17.6
17.7 ± 4.8
16.4
17.2 ± 6.3
0.422
PSA (ng/ml)
– Median
– Mean ± SD
1.9
2.2 ± 2.0
2.8
3.4 ± 2.6
3.2
5.1 ± 6.8
0.410
hs-CRP (mg/l)
– Median
– Mean ± SD
1.4
1.8 ± 1.7
1.3
2.1 ± 2.5
1.2
3.1 ± 5.7
0.089
BMI (kg/m2)
– Median
– Mean ± SD
27.5
28.1 ± 3.5
27.7
27.9 ± 4.3
27.1
27.2 ± 3.8
0.552
Maximum flow rate (ml/s)
– Median
– Mean ± SD
18.2
18.9 ± 9.5
14.9
17.0 ± 10.2
16.2
17.8 ± 8.2
0.495
Total prostate volume (cm3)
– Median
36.0
– Mean ± SD
38.5 ± 16.9
37.5
42.1 ± 16.4
34.0
36.5 ± 12.0
0.265
7th ECA-Congress – Abstracts
I. Rurik
Family and Occupational Medicine, University of
Debrecen, Hungary
In the last decades there has been considerable progress in the assessment of sexual
practices and evaluation of sexual dysfunction. However, there is limited data available
concerning the relationship of sexual activity
and basic anthropometric parameters in different age and ethnic groups.
The aim was to elucidate this relationship.
The study population consisted of 1,146
male patients aged 25–45 years. All patients
were recruited from an outpatient andrology
clinic in Budapest, Hungary. A medical survey was conducted on anthropometric parameters including age, height, body weight
and body mass index (BMI). Patients were
allotted into three age groups (25–29, 30–39
and 40–45 years). Self-reported sexual activity was also reported. Chi-square test, oneway ANOVA and stepwise linear regression
were used to characterize relationships between anthropometric parameters and sexual
activity.
The youngest age group showed the highest
coital activity. Although 61% of the patients
were either obese or overweight no correlation between BMI and sexual activity were
apparent. There was a significant difference
regarding sexual activity between height categories. Patients with height below 170 cm
reported higher weekly coital frequency than
men over 180 cm. Excepting height and age,
most anthropometric measures did not correlate with sexual activity.
There is a great need for large-scale studies
worldwide, using similar methods, and
larger representative samples from various
ethnic and age groups.
Reference:
Rurik I, Szigethy E, Fekete F, Langmár Z. Relations between anthropometric parameters and
sexual activity of Hungarian men. Int J Impot Res
2012. doi:10.1038/ijir.2011.57. [Epub ahead of
print]
27
The SIAMS-ED Study: a Spontaneous, Multicentre, Observational
Study on the Efficacy of Vardenafil
in Men with Erectile Dysfunction
and Cardiovascular Risk Factors
A. M. Isidori1, G. Corona2, A. Aversa1, E. A. Jannini3,
C. Foresta4, M. Maggi5, A. Lenzi1, S .G. Siams-Ed6
1Experimental Medicine, Sapienza University, Rome;
2Endocrinology Unit, Maggiore-Bellaria Hospital,
Bologna,3Experimental Medicine, University of
L’Aquila; 4Centre Cryopreservation of Male Gamete,
University of Padova; 5Biomedicine, University of
Florence, 6SIAMS, Italian Society of Andrology and
Sexual Medicine, Italy
Question Observational
study designed
and conducted by the Italian Society of
Andrology and Sexual Medicine (SIAMS) to
assess health outcomes in men with erectile
dysfunction (ED) who took vardenafil for
five months in a real-life setting.
Methods This was a spontaneous, multicentre (18 sites), open-label, prospective,
non-comparative, interventional study performed in a large cohort of unselected men
(n = 604, mean age 55.3 ± 12.1 yrs) with ED.
Enrolled patients had a 4-week washout period from previous pro-erectile drugs and
prior to ED investigations that included established questionnaires (SIEDY, EDOS,
IIEF5, SSLC90) and penile colour Doppler
ultrasonography. All patient underwent metabolic, cardiovascular and hormonal screening, including pulse pressure and testosterone evaluation; cardiovascular risk (CVR)
was stratified into six classes predicting the
likelihood of a major adverse cardiovascular
event (MACE) within 10 yrs (Progetto
Cuore Algorithm).
Results One third of patients (30.8%) meet
the diagnosis of metabolic syndrome
(ATPIII criteria). In particular, 33.2% had
reduced HDL cholesterol, 36% increased
waist circumference, 67.8% high blood pressure (of which 49.9% systo-diastolic and
8.1% isolated diastolic hypertension), 37.2%
hypertriglyceridemia and 31.9% high blood
glucose. Mean pulse pressure was 49.2 ±
10.4 mmHg. Stratification of cardiovascular
risk was 28.6% and 30.2% for class I and II
class (< 10% of MACE), 21.5% for the III
class (10–15% of MACE), 12.3% for the IV
class (15–20%), 5.4% and 1.9% for the V
and VI class (> 20% of MACE).
A higher PP and a significant reduction in T
levels were found in men with higher CVR
classes(³IV, p < 0.0001); PP was higher in
men with moderate/severe ED vs mild ED
(p < 0.001) and negatively correlated with
androgens levels and waist (p < 0.01). Follow-up data on 185 men treated with
Vardenafil documented a significant increase in baseline IIEF5 score(D = 6.1 ± 4.8;
p < 0.0001) for all CVR classes. Interestingly, greaterD-IIEF5 increments were observed in men with higher PP and CVR
(p < 0.0001), when adjusted for confounding
factors. Mild adverse events were reported in
< 5% of the population, with no differences
between high vs. low CVR classes.
Conclusions In the real life settings, ED is
becoming a frequent presenting symptom for
patients with an elevated, often ignored, risk
of future MACE. Simple screening procedures to select patients deserving preventive
measures are needed. Androgens levels and
PP could be used in these patients as biomarkers of cardiovascular health. Vardenafil
turned out safe and powerful in improving
erections in severe ED patients, proving unaltered efficacy in higher CVR classes.
28
Clinical Correlates of Erectile Dysfunction and Premature Ejaculation in Men with Couple Infertility
M. Maggi1, F. Lotti1, G. Corona1, G. Rastrelli1, G. Forti1,
E. A. Jannini2
1Sexual Medicine and Andrology Unit, Department of
Clinical Physiopathology, University of Florence; 2Endocrinology and Medical Sexology, Experimental
Medicine, University of L’Aquila, Italy
Introduction The frequency and the clinical
characteristics of erectile dysfunction (ED)
and premature ejaculation (PE) in infertile
men have been poorly investigated. The aim
of this study was to assess the prevalence of
ED and PE and their clinical correlates in
men seeking medical care for couple infertility.
Methods A consecutive series of 244 men
(mean age 35.2 ± 7.8) with couple infertility
was systematically evaluated. Erectile function was investigated with the International
Index of Erectile Function-15 erectile function domain (IIEF-15-EFD), whereas ejaculatory status with the Premature Ejaculation
Diagnostic Tool (PEDT). An IIEF-15-EFD
< 26 indicated ED. A PEDT score < 8 indicates no-PE. All patients underwent psychological (Middlesex Hospital Questionnaire,
MHQ), prostatitis symptoms (National Institutes of Health-Chronic Prostatitis Symptom
Index, NIH-CPSI), hormonal, seminal and
interleukin 8 (sIL-8; a surrogate marker of
prostatitis) evaluation, along with scrotal
and transrectal colour-Doppler ultrasound
(CDU) assessment.
Results ED was found in 43 (17.8%) and
PE in 38 (15.6%) subjects. After adjusting for
age, IIEF-15-EFD score was negatively associated with depressive symptoms (MHQ-D
score), somatization (MHQ-S score), NIHCPSI total and Quality of Life (QoL) subdomain score. In a logistic multivariate model,
among all these variables, only depression
was significantly associated with ED (adjusted OR = 1.19 [1.02–1.39]; p < 0.05).
PEDT score was positively associated with
prostatitis symptoms and signs, such as sIL-8
and prostate CDU abnormalities (including
arterial prostatic peak systolic velocity,
APPSV), phobic anxiety (MHQ-P score) and
calculated free testosterone (cFT). The association between PE and NIH-CPSI score or
APPSV was confirmed even after adjustment for age, MHQ-P score and cFT (adjusted OR = 1.11 [1.05–1.17]; p < 0.0001
and 1.22 [1.03–1.44]; p = 0.02, for NIHCPSI score and APPSV, respectively).
J Reproduktionsmed Endokrinol 2012; 9 (5)
329
ECA – Abstracts
26
Body Height and Sexual Activity –
Hungarian Data
7th ECA-Congress – Abstracts
Conclusions ED and PE are reported by
ECA – Abstracts
one out of six infertile patients. ED is mainly
associated with depressive symptoms, while
PEDT score is positively associated with
prostatitis symptoms and signs, phobic anxiety and cFT.
 Short Oral Presentations 4:
Sperm Quality and Selection for ART, Determinants
of Male Reproductive
Health, Genetics and
Epigenetics
29
Long-term Contraception with
Risug and its Functional Reversal
by DMSO and NaHCO3 in Rats
A. S. Ansari, M. Hussain, S. R. Khan, I. Alam,
N. K. Lohiya
University of Rajasthan, Department of Zoology,
Jaipur, India
The success of functional reversal following
long-term vas occlusion with RISUG and its
reversal by DMSO and NaHCO3 was carried
out in adult Wistar albino rats. The study was
divided into seven groups containing ten animals in each, viz., sham operated control
(group I), vas occlusion with RISUG for 90
days (group II), vas occlusion for 90 days and
reversal by DMSO (group III), vas occlusion
for 90 days and reversal by NaHCO3 (group
IV), vas occlusion for 360 days (group V), vas
occlusion for 360 days and reversal by DMSO
(group VI), and vas occlusion for 360 days
and reversal by NaHCO3 (group VII). Animals were subjected to bilateral vas occlusion
using 5–7 µl of one human dose of RISUG in
each vas. 90 and 360 days following vas occlusion, animals were subjected to vas occlusion reversal, respectively, with 250–500 µl
of DMSO and 500–700 µl of 5 % NaHCO3.
Ejaculated spermatozoa of RISUG injected
animals and initial intervals following reversal exhibited necrospermic status. In groups
II, III, IV and VI 100% sterility was recorded
at all post-injection mating intervals, whilst a
gradual decrease in per cent fertility was detected in groups V and VII which was found
zero per cent following 90 days of vas occlusion. Fertility test in DMSO reversed animals
indicated 100% sterility in group III at 15th
day mating which was gradually improved
from 30–100% following 30th day to 90th day
post-reversal. Group VI showed 70% fertility
resumption at the first mating and eventually
completely restored on the 45th day post-reversal. Reversal carried out by NaHCO3 in
group IV also exhibited a similar trend, indicated gradual fertility restoration from 80–
100% following 30th day to 90th day post reversal. In group VII, however, fertility restored to 80% on the 15th day post-reversal,
which was resumed to 100% in all other mating intervals. After 90 and 360 days of vas
occlusion with RISUG, the lumen of the oc-
330
J Reproduktionsmed Endokrinol 2012; 9 (5)
clusion site showed eruption of epithelium at
certain places which regained completely and
patency of the vas was evident by day 90 postreversal in all groups. In conclusion, a rapid
restoration of fertility was evident in longterm reversal by both methods when compared with short-term and are feasible and effective leading to cent percent return of fertility and could be a viable alternative for reversible approach of contraception in human.
30
Deficient Testosterone Production
during the Masculinization Programming Window is associated
with Sertoli-cell Only Tubules and
Focal Dysgenesis in Adulthood
S. van den Driesche, D. Rebourcet, S. Platts, A. Boyle,
R. Sharpe
MRC Centre for Reproductive Health, University of
Edinburgh, UK
Introduction The testicular dysgenesis syndrome (TDS) hypothesis proposes that maldevelopment of the testis, which could have
numerous primary causes, leads secondarily
to malfunction of the Leydig (LC) and/or
Sertoli (SC) cells and consequent downstream disorders. Normal reproductive tract
development and anogenital distance (AGD)
are programmed within the ‘masculinisation
programming window’ (MPW, e15.5–e18.5
in rats; ~8–14 weeks of gestation in humans), and TDS disorders can arise because
of deficiencies in this programming. We
have already shown that experimentally-induced dysgenesis of the testis in rats and testosterone production in the MPW are interrelated in fetal life, and both are associated
with reduced AGD at birth. The purpose of
this study was to evaluate if disorders of the
adult testis are also linked to events specifically in the MPW.
Material & Methods Testes from adult
male Wistar rats which were exposed in
utero to either vehicle (control) or to dibutyl
phthalate (DBP; 750 mg/kg/day) from embryonic day (e)15.5–e18.5 (MPW) were
used to determine the appearance of SCO tubules and focal dysgenesis based on H&E
staining and immunohistochemistry for various cell-specific markers. Testosterone production was measured by radioimmunoassay. Linear regression analysis was used to
determine the relationship between AGD,
dysgenesis, testosterone production and the
appearance of SCO tubules.
Results We have analyzed 10 adult males
which were exposed to DBP during the
MPW. Of these 10 males, 1 male had severe
hypospadias, 2 had very mild hypospadias
while the other 7 males had a normal penis;
average (scrotal) testis weight was reduced
by ~25%. We performed H&E staining on 11
testes (8 scrotal, 1 inguinal, 2 cryptorchid),
and in 6 out of 8 scrotal testes we observed
SCO tubules and/or focal dysgenesis. These
6 testes were from animals that had normal
penis development but reduced AGD (indicating reduced androgen exposure in the
MPW). No abnormalities were found in control rats. More detailed, quantitative studies
are ongoing and will be reported at the meeting.
Conclusion We conclude that DBP-induced
suppression of intratesticular testosterone
during the MPW, which results in life-long
reduction in AGD, also induces a significant
increase in focal dysgenesis and SCO tubules in normally descended testes in adulthood. This demonstrates the importance of
testis development during the MPW in programming the structure and normality of the
adult testis and TDS disorders.
31
Impact of the Slenoprotein nGPx4
on Male Fertility and Sperm
Epigenome
S. Pipolo1, R. Puglisi1, I. Sodano1, S. Nusca2, F. Mangia2,
C. Boitani1
1DAHFMO, Section of Histology and Medical Embryology; 2Department Psychology, Section of Neuroscience,
University of Rome La Sapienza, Rome, Italy
Introduction We recently demonstrated that
the nuclear form of Glutathione Peroxidase 4
(nGPx4) has a peculiar distribution in sperm
head, being localized to nuclear matrix and
acrosome, and is required for proper paternal
chromatin decondensation at fertilisation.
While protamines are the major component
responsible for sperm chromatin packaging,
a small amount of histones is also retained,
the relevant role of which has been recently
highlighted in influencing early embryo development. We reasoned that paternal histone modifications could be implicated in the
process of sperm chromatin disassembly in
the zygote. We used nGPx4 KO mice as experimental model to address this issue and to
investigate the impact of nGPx4 on sperm
fertilizing potential.
Material & Methods We analyzed levels of
acetylated Histone H3 and H4 in cauda epididymal spermatozoa from nGPx4 KO and
WT mice by western blotting and immunofluorescence staining. Sperm were decondensed by glutathione and heparin treatment
to allow signal detection. The fertility of
nGPx4 KO mice was determined by in vivo
and in vitro assays.
Results We first assessed the consequences
of the nGPx4 lack on hyperacetylated histone H4 and histone H3 acetylated at K9 and
K14 levels. Interestingly, significant higher
amounts of modified histones appeared in
nGPx4 KO sperm compared to WT sperm. In
light of the fact that nGPx4 KO sperm decondense faster than WT sperm, present data
may link the acetylation of histones retained
in sperm to paternal chromatin remodeling at
fertilisation. To investigate the function of
nGPx4 localized to sperm acrosome we
asked whether it was associated with male
fertility. Matings of nGPx4 KO male mice to
wild-type females yielded both litter sizes
and percentages of plugged and pregnant females significantly smaller than those of WT
male mice. In vitro fertilisation assays re-
vealed 70% reduction in the percentage of
embryos at pronuclear stage when metaphase II oocytes were inseminated by nGPx4
KO capacitated sperm compared to WT
ones. The reduced fecundity of nGPx4 KO
males was due to a defect of sperm ability to
penetrate zona pellucida, being sperm binding and sperm-oolemma fusion similar between the two genotypes. These results demonstrate the subfertility of nGPx4 KO male
mice.
Conclusions These findings reveal a previously unrecognized role for the nuclear isoform of GPx4 in male fertility. Hitherto it
was demonstrated that the mitochondrial
GPx4 (mGPx4) confers the vital role of selenium in mammalian male fertility, being
mGPx4 KO sperm unable to fertilize oocytes
because of tail severe abnormalities. We also
propose that acetylated histones retained in
sperm might contribute to the development
of the male pronucleus.
32
Correlation between Spermatozoal DNA Integrity (TUNEL Assay)
and Chromatin Condensation
(GRAM staining) with Basic Semen Analysis in Subfertile Men
and Normal Controls
M. Balla1, K. Nikolaou1, M. Vargiami1, L. Karamountzos2,
M. Chalikias3, T. Zeginiadou4, R. Angelopoulou1
1
Histology and Embryology; 2Urology, Medical School,
National and Kapodistrian University of Athens;
3Department of Mathematics, Technological Institute
of Piraeus, Athens; 4Obstetrics and Gynecology, Unit
of Reproductive Endocrinology, Aristotle University of
Thessaloniki, Greece
Introduction Spermatozoal DNA integrity
and chromatin condensation are crucial factors for male fertility. TUNEL assay and
Gram staining were used for the assessment
of nuclear quality in seminal smears from
patients consulting for infertility. The aim of
this study was to investigate correlation if
any between the two indexes and normal and
abnormal parameters of basic semen analysis.
Materials & Methods TUNEL and Gram
staining were applied to semen samples from
105 infertile men. DNA Fragmentation Index (DFI%) and Gram Stain Index (GSI%)
referring to the percentages of abnormal
spermatozoa (TUNEL positive and Gram
negative) were raised. From the total number
of men examined, 78 provided basic semen
analysis results and thus they were divided
into two groups, those with normal and those
with abnormal parameters, according to the
WHO 2010 semen analysis criteria. Statistical evaluation was made with KolmogorovSmirnov, T-test and the correlation between
GSI% and DFI% with Pearson’s parametric
method. Statistical significance was set at
p < 0.05.
Results Spermatozoa with fragmented DNA
(TUNEL positive) were measured and DFI %
was 24.79 ± 19.397. Normal condensed
spermatozoa were stained blue (Gram posi-
tive) whereas those with abnormal condensation appeared red (Gram negative) and the
GSI% was 50.68 ± 18.50. All variables follow normal distribution and parametric statistic analysis was used. Additionally, with
Pearson correlation coefficient no statistically
significant correlation was revealed (r = 0.147,
p = 0.135). The T-test for men with normal
and abnormal parameters of basic semen
analysis showed no differences between
DFI% and GSI%, with p-value 0.470757 and
0.846763, respectively.
Conclusion Spermatozoal DNA integrity
and chromatin condensation are not correlated and both indexes appear independently
of basic semen analysis parameters. Although further investigation is needed, it is
suggested that the two techniques must be
used simultaneously for the best possible assessment of sperm quality.
33
The Methylation analysis of Histone H4K12ac associated Promoters in Sperm of Healthy Donors
and Subfertile Patients
tified in infertile patients. Depletion of
H4K12ac of following developmentally important promoters: TRIP13, AFF4, AXIN1,
EP300, LRP5, RUVBL1, USP9X, NCOA6,
NSD1, POU2F1 was observed. The pyrosequencing analysis showed hypomethylation
(5–10%) within CpG islands of H4K12ac
binding promoters in fertile sperm which has
not been changed in a group of subfertile
men.
Conclusions Our result showed that the accessibility of histone binding is not limited
by DNA methylation in normozoospermic
men. The depletion of H4K12ac in selected
developmentally important promoters in
subfertile patients was not accompanied by
changing in methylation status. We therefore
suggest that aberrant histone acetylation
within developmentally important gene promoters in infertile men, not DNA methylation, may reflect insufficient sperm chromatin compaction and transfer of epigenetic
mark to the oocyte.
34
Even Globozoospermic Spermatozoa have Cephalic Vacuoles
A. Paradowska-Dogan1, M. Vieweg1, D. Miller2, H.-C.
Schuppe1, W. Weidner1, K. Steger1
1Department of Urology, Pediatric Urology and Andrology,
Justus-Liebig-University, Giessen, Germany; 2Leeds Institute of Genetics, Health and Therapeutics, University of Leeds, UK
N. Gatimel1, R. D. Leandri1, B. Foliguet2, L. Bujan3,
J. Parinaud1
1Centre d’AMP, Hôpital Paule de Viguier, Toulouse;
2Laboratoire de Microscopie Electronique, Faculté de
Médecine de Nancy, Vandoeuvre-lès-Nancy; 3EA 3694,
Human Fertility Research Group, Toulouse, France
Introduction The proper maturation of
sperm cells requires two important mechanisms: histone to protamine exchange and
hyperacetylation of remained histones. The
acetylation of histone H4 at lysine 12
(H4K12ac) has been observed prior to full
decondensation of sperm chromatin after
fertilisation suggesting its important role for
regulation of gene expression in early embryogenesis. Similarly, DNA methylation
may contribute to the gene silencing of several developmentally important genes. Following the identification of H4K12ac binding promotes in sperm of fertile and subfertile patients, we aimed to investigate whether
the depletion of histone binding was associated with alteration of DNA methylation in
subfertile patients.
Material & Methods Chromatin immunoprecipitation with antibody against H4K12ac
was performed with spermatozoa of subfertile patients with impaired sperm chromatin
condensation as assessed by aniline blue
staining and fertile donors as controls.
H4K12ac immunoprecipitates were analyzed
by hybrydisation on HG18 promoter array
(NimbleGen). DNA methylation analysis of
10 developmentally important, H4K12ac
interacted promoters in spermatozoa of 7
healthy donors and 20 subfertile patients was
performed using pyrosequencing (PyroMark
Q24, Qiagen).
Results Over 500 target gene promoters for
H4K12ac has been identified for H4K12ac
in healthy donors. In contrast, less binding
sites of 149 gene promoters and lower enrichment of each binding site could be iden-
Introduction We report the cases of 2 patients diagnosed with total globozoospermia
after conventional semen analysis. We studied sperm morphology by high-magnification interference contrast microscopy and
electron microscopy, and assessed acrosomal status by fluorescent labelling with peanut agglutinin (PNA) lectins and anti-CD46
antibodies. The total absence of acrosome in
these patients provided a good opportunity
to further investigate the origin of the cephalic vacuoles.
Material & Methods We carried out detailed morphometric analysis under highmagnification (×6 000) interference contrast
microscopy and measured the number of
sperm-head vacuoles and their percentage
area using digital imaging system software
(Leica Application Suite v 3.6). We also
studied acrosomal status by fluorescent labelling with PNA lectins and anti-CD46 antibodies and electron microscopy. Analysis
of DNA fragmentation was performed by
terminal deoxynucleotidyl transferase-mediated dUTP nick end labelling assay (TUNEL)
and chromatin status was explored using
sperm chromatin structure assay (SCSA) and
aniline blue staining.
Results Our 2 patients with total globozoospermia (absence of acrosome confirmed by
electron microscopy) had vacuolar areas of
6.3% and 5% (reference population of fertile
men 5.9%). However, although both these
patients were diagnosed with total globozoospermia, their profiles were somewhat different: patient 2 had positive lectin labelling
for 9% of spermatozoa and Golgi residues
J Reproduktionsmed Endokrinol 2012; 9 (5)
331
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
were seen under electron microscopy. A live
birth was obtained after ICSI for patient 2
only.
Conclusion In our 2 patients in whom 100%
of spermatozoa are acrosomeless, high-magnification examination with Nomarsky contrast revealed a number of vacuoles and a
relative vacuole area very similar to those of
fertile controls. These findings strongly support the hypothesis that these vacuoles, in
particular the largest vacuoles, are not of
acrosomal origin.
35
Epimutations in RHOX Genes are
Associated with Male Infertility
M. E. Richardson1, A. Poplinski2, F. Tuettelmann3,
J. Gromoll2, M. F. Wilkinson1
1Department of Reproductive Medicine, University of
California San Diego (CA), USA;2Centre for Reproductive Medicine and Andrology;3Institute of Human
Genetics, University Muenster Germany
The X-linked RHOXgene cluster encodes a
set of homeobox transcription factors that
are selectively expressed in the reproductive
tract. Members of this homeobox gene cluster regulate key target genes important for
spermatogenesis and they promote male fertility in mice. Here, we report that the human
RHOX gene cluster is selectively hypermethylated in sperm from men with abnormal semen parameters. Hypermethylation in
this region of the X-chromosome is restricted specifically to the RHOX cluster as it
does not spread to the immediately adjacent
genes on the X-chromosome. To determine
whether DNA methylation has a causal role
in regulating RHOX transcription, we defined the promoter regions of the human
RHOX genes and performed gain- and lossof-function experiments. The results showed
that DNA methylation is both necessary and
sufficient to strongly repress RHOX gene
transcription. Our results suggest that DNA
methylation is responsible for the tissue-specific expression pattern of the RHOX gene
cluster and lead us to propose that RHOX
hypermethylation is a useful marker for male
infertility.
36
Reference Values of Sperm Chromatin Dispersion Test in Sperm
Donors with Known Fecundity
S. Camarena, A. Mata, A. Garcia, R. Gustá, O. López,
O. Martínez, G. Ortiz, L. Bassas
Fundacio Puigvert, Andrology, Barcelona, Spain
Introduction Reference ranges of sperm
DNA integrity markers are usually drawn
from individuals classified as fertile based
on permissive criteria. With the objective of
defining our own reference values for Sperm
Chromatin Dispersion (SCD) test, we have
retrospectively studied a series of sperm donors fully assessed in our hospital and with a
detailed record of their reproductive fitness
after assisted reproductive techniques.
332
J Reproduktionsmed Endokrinol 2012; 9 (5)
Material & Methods We included 47 sperm
donors younger than 35 y/o, without medical
history of significant diseases, drug abuse
and hereditary conditions. Blood analyses
were normal, including haematology, biochemistry and karyotype. HBs antigens, antibodies against HCV, CMV and HIV, as
well as RPR test, were all negative at baseline and after 6 months final quarantine. All
included donors had normal semen analysis.
Sperm count was > 50 millions/mL, progressive motility > 40% and normal morphological gametes > 6% (Tygerberg criteria). Sperm
samples from each donor were used at least
in 10 insemination cycles, on a minimum of
4 different female recipients. Sperm DNA
integrity was analyzed with the method of
SCD (Halosperm®) as described by the
manufacturer, on semen aliquots previously
frozen. Duplicate assessments were done on
500 sperm by two different observers. Fragmentation Index (FI) was calculated as the
ratio between damaged sperm (“degraded”
sperm, without halo, small halo) and total
sperm counted.
Results The average pregnancy rate per insemination cycle of donors was 15.3%. Miscarriages occurred in 15.8% of pregnancies.
The readings of FI by the two observers were
equivalent. The FI was 13.2% (6–25) (median
[95%-CI]) and showed some correlation with
normal morphology (R = 0.293; p = 0,057)
but not with other semen parameters, or pregnancy rates of individual donors. There were
two donors with FI above the limit of 95%CI showing good pregnancy rates and normal semen parameters.
Conclusions Our results confirm that the
upper limit of reference for SCD test can be
established around 25 %. Donors showing
SCD above the median did not display any
trend towards worsening of reproductive
outcome, compared with those below the
median.
37
UVB-induced Mitochondrial Dysfunction does not Correlate with
Sperm DNA Fragmentation
V. Sanchez1, J. Wistuba1, P. Groß2, F. Wübbeling3,
C. Fallnich2, M. Burger3, M. Zitzmann1, S. Kliesch1,
S. Schlatt1, C. Mallidis1
1Centre of Reproductive Medicine and Andrology;
2
Institute of Applied Physics; 3Institute for Computational and Applied Mathematics, University of Muenster, Germany
Introduction New molecular methods have
highlighted the importance of sperm nDNA
integrity to embryo quality and implantation.
The focus of many studies, it is now acknowledged that the fragmentation seen in
sperm may be the consequence of oxidative
stress. The cause of this stress however remains a contentious issue. The current hypothesis is that either internal and/or external
events trigger a cascade causing mitochondrial dysfunction and the release of reactive
oxygen species (ROS) which attack sperm
nDNA. Unable to explain various inconsistencies, the plausibility of this proposition
has been questioned. Our aim was to induce
mitochondrial dysfunction by UVb irradiation, evaluate the effect on sperm nDNA, localize the damage and assess the influence of
seminal plasma.
Materials & Methods Semen samples were
collected from 45 patients attending the
Andrology laboratory of CeRA. Samples
were placed in one of 6 groups: 0%, 20%,
40%, 60%, 80%, 100% seminal plasma.
Aliquots of each group were irradiated with
UVb for 15s, 30s, 45s, 60s, 120s, 180s, 240s.
Sperm motility and viability were assessed
(WHO criteria), nDNA status determined by
acridine orange test, lipid peroxidation with
BODIPY (latter two tests by flow cytometry). The position of nDNA damage was
localized using Raman microspectoscopic
spectral mapping. Samples were left for 15
mins, then irradiated for an identical time
and again assessed using the same tests.
Results Even short UVb exposure was
found to significantly decrease sperm motility and viability, however nDNA integrity
remained unaffected. Damage was seen to
increase at high dosages but only after the
death of the sperm. At levels where sperm
were immotile but not dead (i.e. mitochondria damaged but the cell survived), no difference was seen in nDNA integrity. Increasing concentrations of seminal plasma ameliorated the actions of UVb with as little as
40% capable of providing maximum protection. Raman spectral mapping found nDNA
damage primarily in the proximal region of
the head.
Conclusion No evidence was found that
damaged sperm mitochondria and their proposed ROS leakage caused any nDNA damage (neither the quantity nor location). In
light of these findings and the accumulating
evidence from other studies, the current hypothesis is unable to adequately explain the
origin of sperm nDNA fragmentation.
 ECA Plenary Lecture 1:
Metabolic Syndrome and
Reproductive Function
38
Effects of MS on the Male Reproductive System
M. Maggi
Università degli Studi di Firenze, Facoltà di Medicina e
Chirurgia, Florence, Italy
The MetS clusters metabolic and cardiovascular risk factors, including hyperglycemia,
atherogenic dyslipidemia, hypertension and
abdominal visceral obesity. Such disorders
are not clustered coincidently, and visceral
obesity has been evidenced to play an essential role in the pathogenesis of MetS. The
numerous deleterious effects of MetS are being investigated throughout the medical
community, as MetS may affect many aspects of human physiology due to its systemic nature.
Male factor infertility may represent one
such perturbation in male patients with
MetS. Adverse effects of obesity, and in particular visceral obesity, on male infertility
are postulated to occur through several
mechanisms.
First, visceral obesity per se, is a major determinant healthcare issue leading to MetS-induced hypogonadism. Several studies have
reported defects of the hypothalamic-pituitary-gonadal axis, characterized by a decline in T levels associated with normal or
low follicle-stimulating hormone (FSH) and
luteinizing hormone (LH) levels, in obese
and in MetS men.
More recent epidemiological studies have
clearly indicated a strong and independent
relationship between male male reproductive
system alterations and metabolic syndrome
(MetS). This association implies common
factors in the pathogenesis of these entities.
Common denominators include sustained
hyperglycaemia, insulin resistance, lowgrade chronic inflammation and hypogonadism.
In order to evaluate the pathogenetic mechanism underlying these associations we develop an animal model of MetS, closely resembling the human phenotype. This animal
model was obtained by feeding adult male
rabbits a high fat diet (HFD; 0.5% cholesterol and 4% peanut oil) for twelve weeks.
Along with the classical features of MetS,
such as hyperglycemia, impaired glucose
tolerance, dyslipidemia, hypertension, increased visceral obesity, HFD rabbits demonstrated also an overt hypogonadotropic
hypogonadism characterized by a substantial
reduction of testosterone levels, atrophy of
seminal vesicles, prostate and testis, and an
impairment of erectile function. Interestingly at hypothalamic level we found a reduction of GnRH immunopositivity that suggest a HFD-induced reduction of GnRH secreting neuron. At testicular level several
enzymes involved in the steroidogenesis
were down-regulated. However, more recently we investigated the effect of HFD-induced MetS at low urinary tract (LUT) level,
including bladder and prostate.
Interestingly, MetS induced not only bladder
dysfunction but also a prostatitis-like syndrome. A florid infiltration of inflammatory
cells, including macrophages, neutrophils,
CD4+ and CD8+ T lymphocytes was observed within the interductal stroma and epithelium of HFD prostate. Besides inflammation, marked tissue remodeling and hypoxia
were observed in HFD-treated rabbit prostate. Prostate ischemia, along with inflammation and stromal reorganization, characterized by fibroblast trans-differentiation to
myofibroblasts, has recently been recognized as a key pathogenetic factor in the development of BPH. Also HFD-treated rabbit
bladder showed several histological alterations and dysfunctions. Histomorphological evaluation of bladder samples from HFD
rabbits evidenced the presence of widespread hypoxic areas in both urothelial and
fibromuscular areas, as well as fibrosis with
marked reduction of muscle/fiber ratio com-
pared to control bladders from rabbits fed a
regular diet. The increased mRNA expression of several inflammatory markers, such
as COX2, IL-6 and lactoferrin in HFDtreated rabbit bladder further suggests the
presence of chronic inflammation.
The association between obesity/MetS and
prostate diseases has been extensively investigated in benign prostatic hyperplasia (BPH),
often with a positive correlation. Conversely
the relationship between obesity and prostate
inflammatory diseases has been poorly studied. We have recently demonstrated that
seminal IL-8 is the most reliable predictive
marker of prostate inflammatory diseases. In
addition, we recently retrospectively studied
222 consecutive male patients attending our
outpatient clinic for the first time from January 2008 to October 2010, seeking medical
care for couple infertility to investigate possible correlations among body mass index
(BMI) and signs/symptoms of prostatitis including seminal IL-8. And sperm parameters
and color-doppler-ultrasound (CDU) features of the entire male genital tract. In this
study we found an association of BMI with
several CDU features suggestive of prostatitis and IL-8 level.
However, an association between MetS
components and prostate inflammation has
not yet been demonstrated in humans. We
have therefore examined the histological
characteristics of inflammatory infiltrates in
prostatectomy specimens from a cohort of
BPH patients and their correlation with preoperatory MetS features, including hypogonadism. Histopathological examination of
BPH specimens demonstrated the presence
of prostatic inflammation in all cases. The
inflammatory score (IS) significantly increased as a function of MetS components.
Patients with MetS had significantly higher
IS as compared to the rest of the sample.
Accordingly, each incremental unit of IS significantly increased the risk of having MetS,
even after adjustment for age. Among MetS
components, in a age-adjusted model, reduced HDL cholesterol and elevated triglycerides – but not high waist circumference,
glycaemia, or blood pressure – were significantly associated with elevated IS . Considering triglycerides and HDL cholesterol as
continuous variables, a significant correlation with IS was observed after adjusting for
age.
In the subset of patients in whom testosterone evaluation was available (n = 92), the
prevalence of hypogonadism (TT < 10.4 nM)
was detected in 24.2% of subjects. In this
sample, increased IS was significantly associated with hypogonadism. Furthermore, after adjustment for hypogonadism and age,
higher triglycerides and lower HDL cholesterol levels were still associated with increased IS.
To investigate whether metabolic factors
could directly trigger prostate inflammation,
we performed preliminary studies in hBPH.
Among the different factors, oxidized lowdensity lipoprotein (oxLDL) showed the
highest secretion of IL-8 (> 10-folds)-a surrogate marker of prostate inflammation-as
well as IL-6, and bFGF. Co-treatment with
DHT significantly inhibited oxLDL-induced
secretion of IL-8, whilst an AR-antagonist,
bicalutamide, reversed DHT effects. DHT
suppresses oxLDL receptor (LOX-1) expression.
In conclusion, we demonstrated that MetS,
and in particular dyslipidaemia is associated
with prostate inflammation: fats could have a
detrimental effect on prostate cells, boosting
prostate inflammation, a key factor in the
development and progression of BPH/
LUTS. Beneficial effects of DHT in counteracting lipid- and insulin-induced prostatic
alterations, suggest that testosterone – via its
conversion into DHT – may have unexpected beneficial effects on prostate health.
Clinical studies specifically addressing this
point are urgently needed.
39
Testosterone and Cardiovascular
Health
K. Channer
Sheffield Hallam University, Sheffield, UK
The most important cause of death as men
age is cardiovascular disease and as men age
so their androgen status declines. Studies
have shown that lowering of endogenous androgen by deprivation therapy as treatment
for prostate cancer increases the risk of cardiovascular death. In long term studies, low
blood testosterone is associated with accelerated atherosclerosis as manifest in coronary,
aortic and carotid vascular territories.
Animal models of hypogonadism with cholesterol feeding have also shown accelerated
atherosclerosis, which replacement therapy
(TRT) ameliorates. The mechanism is not
understood but low testosterone in men, is
associated with an adverse lipid profile, increased inflammatory activation, weight
gain, insulin resistance and impaired glucose
tolerance which is improved by TRT as
proven in randomised controlled trials.
Testosterone has also been shown to be an
arterial vasodilator, an effect mediated by
blocking the L-type calcium channels in the
vascular smooth muscle membrane. This
may be the mechanism whereby it improves
exercise capacity in men with low blood testosterone who also have angina or heart failure.
The disadvantage of a low blood testosterone
level is not just related to accelerated atherosclerosis. There have been at least 4 epidemiological studies showing that a low serum
testosterone is associated with an excess
mortality, in populations of normal men
without overt vascular disease. We recently
reported a follow-up study of 930 men with
coronary disease confirmed at angiography
which showed that men with low levels of
bioavailable testosterone had a highly significant increase in mortality (×2) compared
with those with a normal bio-available testosterone over a follow-up period of 7 years.
Replacing testosterone levels to normal improves symptoms, functional capacity and
J Reproduktionsmed Endokrinol 2012; 9 (5)
333
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
well being in men with heart failure and angina. This year Shores et al [JCEM 2012; 97:
2050–8] showed in an observational study
that TRT halved mortality in men with testosterone deficiency.
 ESU Course 1: Priapism,
Penile Implants & Reconstruction and Other Surgical Problems in ED
41
Supersizing the Penis Following
Penile Prosthesis Implantation
O. Shaeer
Faculty of Medicine, Cairo University, Andrology,
Cairo, Egypt
Question Following implantation of a pe-
nile prosthesis, some couples are dissatisfied
with penile length, girth, shaft or glans engorgement. This may be delusional, due to
the procedure per se or due to preexisting
risk factors such as neglected priapism,
Peyronie’s disease, radical prostatectomy or
overhanging suprapubic fat. In this work, we
try to enhance penile size in patients dissatisfied with its dimensions following implantation of a penile prosthesis, using various
augmentation techniques.
Methods 18 patients who have had penile
prostheses implanted were enrolled in this
study based on dissatisfaction with penile
size. The complaint was relieved by counseling and administration of PDE5 inhibitors in
7 patients. Two patients had elongation,
girth augmentation and glans injection, six
had elongation and girth augmentation and
two had elongation and glans injection.
Results Average preoperative length and
girth were 7.87 cm and 11.62 cm respectively.
Mean post-operative length and girth were
11.62 cm and 14.07 cm. The gain in length
(47.6%) and girth (21%) were statistically
significant (p < 0.005). All patients and partners were satisfied with the results following
surgery except one who suffered graft loss.
Conclusion Implantation of a penile prosthesis may improve penile rigidity, yet may
confound couple’s satisfaction with penile
size to variable degrees. Sex education may
alleviate those concerns. In refractory cases,
penile augmentation may enhance phallic
size and increase patient/partner satisfaction.
42
Assessment of Erectile Function
after Surgical Treatment of Penile
Fracture
S. Krasnyak1, O. Zhukov1, A. Dzidzariya2
1Research Institute of Urology; 2Municipal Urological
Hospital 47, Moscow, Russian Federation
Introduction The purpose of this study was
to evaluate erectile function in patients undergoing surgery for fracture of the penis.
334
J Reproduktionsmed Endokrinol 2012; 9 (5)
Materials & Methods 74 patients were in-
cluded in the study with isolated, combined
and false penile fracture. Mean age was 32.9
(from 18–59) years. The international index
of erectile function (IIEF-EF domain score)
used for assessment of erectile function assessment of quality of life was conducted
using a “Life satisfaction scale” (LSS).
Hardness Erection Score (HES) used to
quantify the degree of rigidity of erections
during penile Doppler.
Results A time from occurrence of an injury to surgery ranged from 5–168 hours,
with 76% of patients seeking medical help
in the first 12 hours, 20% in the next 12
hours and only 4% at a later date. 6 (12.3%)
patients were diagnosed with concomitant
urethral injury. The right cavernous body
was damaged in 85%. The size of the defect
did not correlate with pain intensity or the
presence of urethral injury. The average duration of hospitalization was 7.5 bed-days
for isolated fracture of the penis. Only in 5
patients after surgery IIEF scores were less
than 25 and LSS score were less than 20.
Only one patient had HES score < 4. In
other cases patients were referred to therapy
with a psychotherapist-sexologist with positive results.
Conclusions Erectile dysfunction after surgical treatment of penile fracture has mostly
psychosomatic genesis.
43
Sexual Dysfunction after Surgical
Treatment of Benign Prostatic Hyperplasia
M. Alchinbayev, M. A. Malikh, M. Batyrbekov,
K. Abdilmanov, I. Mansurova
Scientific Centre of Urology, Almaty, Kazakhstan
Introduction Benign prostatic hyperplasia
(BPH) is a common condition in elderly men
and is associated with a range of erectile
function. One of the important problems of
post-operative rehabilitation of patients with
BPH is to restore sexual function. Despite
the fact that the average age of patients with
BPH is 75 years old, most men continue to
experience sexual desire and difficulties in
its implementation may damage the quality
of life of these patients.
The aim of the study – evaluation of sexual
function in patients with BPH after surgical
intervention.
Methods In the study, 250 patients were examined with benign prostatic hyperplasia
with severe symptoms of bladder outlet obstruction and LUTS. Average age of patients
was 68.7 ± 11.5 years.
All patients underwent a full range of laboratory and instrumental diagnostics. The
sexual function was assessed by questionnaire International Index of Erectile Function (IIEF). There have been 188 TURP
(75.2%) and 62 prostatectomy (24.8%).
Results Afore the surgical treatment of
BPH 131 patients (52.4%) assessed their
sexual function as a part-time due to broken
or weakened erection, seared or painful orgasm, 72 patients reported decreased libido.
Sexual activity was completely absent at 119
patients (47.6%), in 48 of them libido was
saved.
131 patients with preserved sexual function
were performed 101 TURP (77.1%) and 30
prostatectomy. Among patients who underwent TURP deterioration of erectile function
observed 49 patients (48.5%) of these 11 patients were marked by complete loss of
sexual activity (8.4%). After prostatectomy
23 patients reported manifest sexual dysfunction (76.7%), 8 patients (26.7%) were
marked by a full erectile dysfunction (ED).
Of the 119 patients with the initial sexual
dysfunction we produced 87 TURP (73.1%)
and 32 prostatectomy. After performed
TURP 19 patients had intermittent erectile
dysfunction.
Thus, during the postoperative rehabilitation
ED of different severity was detected in 91
patients (36.4%); at 100 patients (40%)
sexual function was completely absent from
these 19 patients after TURP. 21 patients
with completely preserved erectile function
noted a blurring of orgasm, 48 patients did
not have any complaints, and completing the
questionnaire IIEF gained more than 21
points.
Mainly dominated complaints were intermittent, and weakened erection, which does not
allow to complete sexual intercourse, caused
discomfort during coitus and ejaculatory
function disorders.
Conclusions
1. After surgical treatment of BPH the impairment of sexual function revealed an average of 36.4% of cases. The highest percentage of ED occurs after prostatectomy.
2. Among men’s sexual dysfunction who
underwent surgery for BPH dominated ED –
83.5%, while the ejaculatory dysfunction accounted for 47.2%.
44
Erectile Function after Robot-assisted Laparoscopic Radical Prostatectomy with Complete Excision
of the Neurovascular Bundles – Are
all Patients Later on Impotent?
A. Abdulhak, V. Zugor, A. Labanaris, J. Witt
St. Antonius Hospital, Urology, Gronau, Germany
Introduction & Objectives The objective
of this study is to evaluate the erectile function of patients undergoing robot-assisted
laparoscopic radical prostatectomy (RALP)
with compete excision of the neurovascular
bundles (NVB).
Material & Methods The records of n = 53
patients who underwent RALP with compete
excision of the NVB from February 2006 to
June 2011 were retrospectively reviewed.
Preoperative potency was evaluated with the
five item version of the International Index
of Erectile Function (IIEF-5). According to
their IIEF score, all of the patients were potent and had no signs of erectile dysfunction.
Postoperative potency was evaluated prospectively at 3, 6 and 12 months after surgery and than yearly. Potency was defined as
erections sufficient for penetration with or
without phosphodiesterase inhibitors. Once
a patient was potent, he was considered potent on further analysis as well. After RALP
was performed none of the patients underwent adjuvant therapy. The parameters analyzed included: age, prostate specific antigen
(PSA), prostate size, clinical stage, preoperative Gleason score, pathologic stage, postoperative Gleason score, surgical margin status
and potency.
Results The median preoperative IIEF-5
score was 23.8 (22–25). The median age of
the patients was 63.3 years old (51–75 years
old), the median PSA was 11.3 ng/ml (2–
39 ng/ml) and the median prostate size was
38.4 gr. (23–130 gr.). The clinical stage was
thought to be confined tumor in n = 46 patients (86.7%) and tumor with extracapsular
extension in n = 7 patients (13.3%). The preoperative Gleason score was Gleason7 in
n = 17 (32.2%). The pathologic stage exhibited confined PCa in n = 42 patients (79.2%)
and extracapsular extension in n = 11 (20.8%).
The surgical margins were negative in all
cases. A Gleason7 in n = 17 patients (32.3%).
After a median follow-up of 29 months
(range 3–67) n = 11 patients (20.7%) had an
erection sufficient for penetration.
Conclusions Our findings suggest that not
all patients undergoing robot-assisted RALP
with complete excision of the NVB will become impotent. As seen from our results approximately 20% of the patients exhibited an
erection sufficient for penetration.
45
Impact of Circumcision on the
Sexual Function of Patients with
Phimosis
J. Dias1, R. Freitas2, R. Amorim1, P. Espiridião1,
L. Xambre1, L. Ferraz1
1Centro Hospitalar V.N. Gaia/Espinho, Vila Nova de
Gaia; 2Instituto Português de Oncologia do Porto,
Porto, Portugal
Introduction Circumcision is the treatment
of choice for patients with phimosis, reducing significantly the risk of urinary tract infections and the number of episodes of acute
urinary retention. Little information is available in the literature on the consequences of
this procedure in the male sexual life.
Question To evaluate the impact of circumcision on the sexual life of patients with phimosis.
Methods Of the 109 patients who underwent
circumcision for phimosis in C. H. V. N. Gaia/
Espinho during 2011, 62 patients were selected (excluded patients aged < 18 years
old, without sex life or with absence of sexual
intercourse after surgery). We performed a
telephone survey, by the same interviewer,
regarding the prevalence of various sexual dysfunctions before and after surgery. McNemar’s
test was used for a matched pairs analysis of
the frequency of sexual dysfunctions.
Results Some sort of sexual dysfunction
was found in 74.2% of patients with phimosis. With circumcision we noticed an increase in the frequency of erectile dysfunction (9.7% vs 25.8% before and after surgery, respectively, p = 0.002) and delayed
orgasm (11.3% vs 48.4%; p < 0.001) (although this latter dysfunction was perceived
as not negative in 74.6% of patients). In patients with dyspareunia a significant symptomatic improvement was noticed (50.0% vs
6.5%; p < 0.001). No statistically significant
differences were found regarding premature
ejaculation (25.8% vs 24.2%).
Conclusion Apart from a relevant improvement in dyspareunia, circumcision seems to
worsen erectile dysfunction and delayed orgasm. Therefore, patients proposed to circumcision should be fully informed on the
consequences on sexual life.
46
Erectile Function Improvement
with Oral Sildenafil versus Placebo in Posterior Urethroplasty:
Double blind Randomized Controlled Trial
M. M. Mazloomfard1, A. Moeini2
Urology; 2Department of Obstetrics and Gynecology,
Shahid Beheshti University of Medical Science,
Tehran, Iran, Republic of Islamic
1
Introduction Traumatic injury to the pelvis
is associated with both urethral disruption
and erectile dysfunction (ED). The initial injury, not the reconstructive surgery, is responsible for most of the long-term problems
with sexual function. However some argue
that reconstructive surgery may impact negatively on sexual function. The aim of this
double blind clinical trial is to investigate the
efficacy of treatment with sildenafil citrate in
comparison with placebo in improving erectile function of patients with pelvic fracture
urethral distraction defects (PFUDD) who
underwent urethroplasty.
Material & Methods Between 2008 and
2010, a total of 60 patients with urethral
stricture who suffered from PFUDD and
were candidate for perineal urethroplasty assessed for eligibility to enter the study. The
exclusion criteria were systemic diseases
that may cause ED, such as hypertension,
diabetes mellitus, heart disease, and chronic
liver disease. Patients using computer-generated simple random tables were randomly
assigned to one of two groups according to
the method of treatment: sildenafil citrate or
placebo. The treatment was started 3month
before the surgery in all patients. The
sildenafil citrate and placebo, 50 mg once
daily, were in capsule form and identical in
appearance, size, shape and color. They were
prepacked in the drug containing bags. A
physician from a department not involved in
this study received the drug containing bags
according to the randomization schedule.
The International Index of Erectile Function5 was used as an evaluation tool. Assessments were made at three time points: three
months before urethoplasty, the time of admission, and 3 months post-urethroplasty.
Surgical team and physician who recorded
data were not informed of the drug group assignment.
Results The incidence of moderate to severe ED following injury was 35% in all of
the patients. There was no significant difference between the groups regarding any of the
patients’ age, previous history of internal
urethrotomy, stricture length, any need for
crural separation and inferior pubectomy.
There was a significant increase in IIEF
scores pre and post-treatment in sildenafil
group in comparison with placebo (p < 0.05).
There were neither adverse events reported
as drug-related in sildenafil group nor in the
placebo control.
Conclusion According to this RCT study,
sildenafil citrate orally significantly increases
erectile function postoperatively and could
be useful in the drug treatment of ED in the
PFUDD patients underwent urethroplasty.
47
The Impact of Ventral Oral Graft
Bulbar Urethroplasty on the
Ejaculatory Function, Erectile
Function and Sexual Life
E. Palminteri1, E. Berdondini1, C. DeNunzio2, G. Bozzini3,
S. Maruccia3, A. Salonia4, L. Carmignani3
1
Andrology Unit, Centre for Urethral and Genitalia Reconstructive Surgery, Arezzo; 2Department of Urology,
Sant’Andrea Hospital, “La Sapienza” University, Rome;
3Academic Department of Urology, IRCCS Policlinico
San Donato, Milan; 4Departmetn of Urology, Ospedale
San Raffaele, Milan, Italy
Objective To determine the effect on sexual
function of the ventral oral graft urethroplasty for bulbar urethral stricture through
the use of questionnaires.
Design, Settings, and Participants Between
2009 and 2010, 52 patients who underwent
ventral oral graft bulbar urethroplasty were
evaluated through questionnaires to ascertain sexual disorders before and after surgery.
Measurements All patients completed pre
and postoperatively the validated Male
Sexual Health Questionnaires and, postoperatively, the unvalidated but adapted PostUrethroplasty Sexual Questionnaire.
Results & Limitations Before urethroplasty,
most of the patients (84.6%) with urethral
stricture complained about ejaculatory disorders influencing their QoL; many of them
(34.6%) were afraid of a postoperative worsening of the quality of sexual life. Following
urethroplasty, nobody reported a worsened
erection, whilst most of them had an improved ejaculation in terms of force, volume
and pleasure during ejaculation; 42.2% had
experienced scroto-perineal disorders and
15.4% noticed aesthetic changes, but without impact on sexual life. There has been a
significant improvement of sexual activity
and desire, relationship with partner, and
quality of sexual life. All reported an imJ Reproduktionsmed Endokrinol 2012; 9 (5)
335
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
provement of the QoL and were satisfied
with the final result of urethroplasty. The
limitation of the present study consists in
analysing only ventral oral graft urethroplasty.
Conclusions Urethral stricture disease determines ejaculatory disorders which negatively impact on life. Patients confessed a
marked anxiety tackling urethroplasty and
claimed especially the fear of postoperative
sexual complications. The minimally-invasive ventral oral graft urethroplasty showed
to improve overall quality of life and sexual
life, in particular the ejaculatory function.
 ECA Plenary Lecture 2:
Ageing
48
The Ageing Testis
B. Robaire, C. Paul
Departments of Pharmacology & Therapeutics and of
Obstetrics & Gynecology, McGill University,
Montreal, Quebec, Canada
It is now well established that advancing age
in men is associated with a decline in androgen production, fertility and quality of spermatozoa. The age of the male partner is
strongly correlated with a decrease in sperm
motility and normal morphology as well as
with decreased pregnancy rates and increased time to pregnancy. There is also
mounting evidence that increasing paternal
age is linked to chromosome damage and an
increase in the incidence of conditions such
as autism and schizophrenia among the progeny. However, many of the biological
mechanisms that underlie these processes remain poorly understood.
Changes in sperm quality with advancing
age are of societal concern with advancing
age for paternity. Spermatogenesis is a
complex multistep process whereby mature
motile spermatozoa develop via a number
of cell divisions from spermatogonial stem
cells (SSCs). It is therefore important to
keep the population of these stem cells
healthy and in good supply and to ensure
that the environment in which cells differentiate (niche, Sertoli cells) does not deteriorate.
Using the Brown Norway rat as a model of
male reproductive aging, we have established that increased paternal age results in
an increased rate of pre-implantation loss,
decreased fetal weight and increased postnatal death rate. We have also found that spermatozoa from older males have increased
chromatin damage and are less able to detoxify reactive oxygen species than spermatozoa from younger males. Analysis of gene
and protein expression by pachytene spermatocytes isolated from young and aged rats
revealed that mRNAs/proteins involved in
base excision repair (BER) are downregulated. Furthermore there is an increase in
8-oxo-2’-deoxyguanosine (8-oxodG) immu-
336
J Reproduktionsmed Endokrinol 2012; 9 (5)
noreactivity in germ cells from aged males
and in the number of spermatozoa positive
for 8-oxodG. Consequences of aging have
been tracked back to SSCs. We have found
that both the number and quality of SSCs
declines with advanced paternal age; the
SSC niche also changes with advancing age.
The possible association of these changes
with an increased mutation rate in germ cells
and whether this is the cause for altered fertility and progeny outcome in older fathers
remains to be elucidated.
Supported by grant MOP-89767 from the Canadian Institutes for Health Research; CP is the recipient of a CIHR Fellowship.
49
Genetic Changes in Spermatogonia of Older Men
A. O. M. Wilkie1, G. J. Maher1, J. Lim1, S. Taylor2,
G. D. H. Turner3, E. Rajpert-De Meyts4, A. Goriely1
1Clinical Genetics Group; 2Computational Biology
Research Group, Weatherall Institute of Molecular
Medicine, University of Oxford; 3Department of Cellular Pathology, NIHR Biomedical Research Centre,
Oxford University Hospitals NHS Trust, Oxford, UK;
4
University Department of Growth and Reproduction,
Copenhagen University Hospital (Rigshospitalet),
Copenhagen, Denmark.
Advanced paternal age has been associated
with an increased risk for spontaneous congenital disorders and some common complex diseases, but the mechanisms that mediate this effect have been poorly understood.
A small group of disorders, including Apert
syndrome (caused by FGFR2 mutations),
achondroplasia (FGFR3), and Costello syndrome (HRAS), which we collectively term
“paternal age effect” (PAE) disorders, provides a good model to study the biological
and molecular basis of this phenomenon.
Previous analyses involving the direct quantification of PAE mutations in sperm and testes have suggested that the common factor in
the paternal age effect lies in the dysregulation of spermatogonial cell behavior, an effect mediated through the growth factor receptor-RAS signal transduction pathway.
These studies implied that normal testes are
mosaic for clusters of mutant cells: these
clusters are predicted to have altered growth
and signalling properties leading to their
clonal expansion (“selfish spermatogonial
selection”), but the DNA extraction methods
used in previous studies eliminated the possibility to study such processes at a tissue
level.
Using a panel of antibodies optimised for the
detection of spermatocytic seminoma, a rare
tumor of spermatogonial origin, we have
found that putative clonal events are frequent
within normal testes of elderly men. In some
testes we could identify entire seminiferous
tubules with a circumferentially altered immunohistochemical appearance that extended
through serial sections that were physically
contiguous (up to 1 mm in length), and exhibited enhanced staining for antibodies
both to FGFR3 and a marker of downstream
signal activation, pAKT. These findings sup-
port the concept that populations of spermatogonia in individual seminiferous tubules in the testes of older men are clonal
mosaics with regard to their signalling properties and activation, thus fulfilling one of
the specific predictions of selfish spermatogonial selection.
We hope that this work will provide a prelude to documenting these phenomena more
broadly, for example asking how the frequency of such immunopositive tubules varies with age or position within the testis, and
to what extent it reflects stochastic processes. In addition I will discuss results of
our ongoing attempts to pinpoint the genetic
correlates of these phenomena using microdissection of immunopositive tubules followed by targeted genetic analysis.
50
The Natural History of Late onset
hypogonadism – Implications for
Clinical Management
F. Wu
Centre for Endocrinology and Diabetes, Institute of
Human Development, Faculty of Medical and Human
Sciences, University of Manchester, UK
Serum testosterone (T) levels gradually decline with age in men. However, the clinical
significance of this remains unclear. The
concept of “late-onset hypogonadism”
(LOH) as a geriatric syndrome defined by
clinical and biochemical criteria remains
controversial. To improve the specificity of
the syndrome, we have recently proposed the
minimum criteria for LOH which entailed
the presence of three sexual symptoms (decreased sexual interest and morning erections, and erectile dysfunction) in combination with total T below 11 nmol/L and free T
below 220 pmol/L.
Using these criteria, we have reported associations between LOH and a variety of end
organ deficits suggestive of androgen deficiency. However, the clinical significance
and the natural history of LOH remain
largely undefined. This lecture will discuss
new longitudinal data from the European
Male Ageing Study (EMAS) on the natural
history of LOH with respect to changes in
testosterone and its predictors, increased allcause and cardiovascular mortality and the
changes in phenotypic and biochemical features. We conclude that LOH identifies men
with poor cardiometabolic health and a
greatly increased risk of dying but the condition is not irreversible.
 ESU Course 2: Peyronie’s
Disease
51
Surgical Treatment Methods of
Peyronie’s Disease
O. Tazhetdinov1, 2, S. Gamidov1, 2
1Urology, Russian National Research Medical University; 2Andrology, Scientific Centre of Obstetrics,
Gynecology and Perinatology, Moscow, Russian
Federation
Introduction The aim of our study was to
evaluate the effectiveness and safety of various
surgical methods of treatment of Peyronie’s
disease.
Materials & Methods For 92 patients the
different methods of surgical treatment were
performed.
For choice of surgical procedure we took
into account the length of the penis, angulation, erectile capacity. Finally, 15 (16.3%)
Nesbit’s procedure; 50 (54.4%) autologous
grafting; 8 (8.7%) autologous grafting +
deep dorsal vein ligation were performed.
Penile prosthesis implantation were perfomed
for 17 (18.5%) patients.
Results 88 (95.6%) had a satisfactory outcome. 4 (4.4%) patients in this series had
postoperative residual curvature (< 20º), but
these patient had not difficulties for penetration. 6 from 8 patients after autologous grafting + deep dorsal vein ligation had increasing erectile function sufficient for coitus, 2
patients from this group had increasing erectile function after using PDE-5 inhibitors for
sexual rehabilitation.
In early postoperative period 14 (15.2%) patients had decreasing sensitivity of glance
penis, 6 (6.5%) patients had subcutaneous
hàematomas of penis, 4 (4.3%) – oedema of
penis. All of these complications were temporary and resolved without another surgical
procedure.
Conclusion Surgical treatment of Peyronie’s
disease is effective and safe procedure. The
using of the algorithm is effective option for
this category of patients.
52
Dynamic Contrast-enhanced MRI
of the Penis in Tumescence before
Surgical Treatment of Peyronie’s
Disease – Preliminary Results
C. M. Woitzik1, A. Hauptmann2, W. Weidner2,
G. A. Krombach1, C. Schneider1
1Department of Diagnostic and Interventional Radiology; 2Department of Urology, Pediatric Urology and
Andrology, University Hospital Giessen and Marburg
GmbH, Justus-Liebig-University Giessen, Germany
Introduction Preoperative diagnosis of
Peyronie’s Disease is based on the medical
history, the palpatory evidence of plaques
and normally a PGE1 injection test to evaluate an angulation and the penile length. The
size of the plaque, the localization and even
the evidence of calcifications is usually evaluated by ultrasonography. Unfortunately, the
palpatory and the ultrasound results do not
correspond in all cases. Furthermore, there
are no possibilities to identify “inflammatory” lesions which are signs for an active
disease. MRI techniques, especially after injection of PGE1 into the corpora cavernosa
are suggested to provide further insights into
the anatomical structure of the corpora
cavernosa in this disease including a better
localization of plaques and definition of inflammation. Unfortunately, until today due
to lacking standardization there is no consensus to perform this technique preoperatively. Our study defines for the MRI evaluation in relation to the clinical findings.
Material & Methods One day before surgery 14 patients were examined at a 1,5T
scanner with surface coil about 10–15 minutes after intracavernous injection of PGE1.
2 different MR protocols were elaborated
containing high- resolution T2-turbo spinecho (TSE) and T1-weight TSE sequences or
short-tau inversion recovery (STIR), trueFISP and T1/2-TSE sequences. Both protocols contained T1-weight 3D gradient recalled echo sequences before and after intravenous injection of weight 0.5 mmol GdDPTA/kg body weight in five dynamic sequences over 420 seconds with subtractiontechnique. Finally, fat suppressed T1-TSE
sequences were acquired in both protocols.
Results There was a high variation in tumescence response. We found several varieties of Peyronie’s disease from focal thickening of the tunica albuginea or simple plaques
(most frequently dorsal) to complex hourglass configuration. In one case surgery was
cancelled because of plaque localization at
the penile septum, in another case a suspected deep dorsal vein thrombosis could be
excluded. No patient showed signs of acute
inflammation preoperatively. In only one
plaque we found less contrast medium enhancement as a sign for increased perfusion.
Conclusion MRI is able to give an insight
into the preoperative penile situs. It can be
applied to localize plaques and to define the
inflammatory activity of the plaque lesions.
The ability to delineate plaques directly in
relation to the anatomical structures of the
penis allows a more detailed planning of the
surgical approach.
53
Surgical Treatment of Penile Curvature with the Tunica Albuginea
Underlap Technique – Description
of the Technique and Clinical Results
H. Steinfatt1, 2, J. U. Schwarzer1, 2
Andrologie Centrum München; 2Urology,
Chirurgische Klinik München-Bogenhausen, Munich,
Germany
1
Introduction Tunical plication procedures
play and important role in the treatment of
Peyronie’s disease and congenital penile
curvature. Several modifications of the clas-
sical Nesbit technique are part of routine
clinical practice. We present our experience
with the Tunica albuginea underlap technique, a new modification of the Nesbit procedure that we submitted for publication just
recently.
Material & Methods Between 2008 and
2012, 54 patients were operated because of
Peyronie’s disease (40) or congenital penile
curvature (14) in a single centre using the
Tunica albuginea underlap technique. With
this technique U-shaped flaps of tunica albuginea are freed from the corpus cavernosum instead of excising ellipsoids. The flaps
are brought under the remaining tunica albuginea and are fixated with single absorbable sutures. So the correction of the abnormal curvature is achieved.
Pre- and postoperative evaluation included
the Erection Hardness Score (EHS) and the
IPP-SSC, a symptom score for Pyronie’s disease that was based on a consensus of regional andrologists. Clinical data concerning
the early postoperative outcome were analyzed retrospectively using standardized
items.
Results Mean age was 59 years for patients
with Peyronie’s disease and 34 years for patients with congenital penile deviation. The
mean follow-up period was 27 month. The
major complication rate was 4%, overall satisfaction 86%. Intraoperative correction of
the curvature was achieved in 100%. Significant relapse occured in 6%. The mean difference of pre- and postoperative IPP-SSC was
8.1 (95%-CI: 7.24–8.96). The mean difference of pre- and postoperative EHC was
–0.03 (95%-CI: –0.16 to –0.09).
Conclusion Preliminary results obtained
with the underlap technique show promising
outcome with minimal morbidity. The new
technique might have three main advantages:
more flexible intraoperative correctability of
the curvature, tighter sealing of the tunical
defects and greater tensile strength of the plications.
54
Radiotherapy is Safe, Clinically
Effective and Well Accepted by
Patients with Morbus Peyronie
J. Gutermuth1, T. Anzeneder1, H. Bruckbauer2,
M. Zirbs1, H. Hofmann1, J. Ring1, B. Eberlein1
1Department of Dermatology and Allergy Biederstein,
Technische Universität München, Munich;
2
Hautarztpraxis Neufahrn, Neufahrn, Germany
Introduction For M. Peyronie a number of
conservative and surgical treatment options
exist, depending on disease stage. However,
patient benefit is often low, or these treatments have to be discontinued due to side
effects. Radiotherapy has been applied for
M. Peyronie since decades, but to date, clinical data on safety, effectiveness and patient
satisfaction is scarce.
Question Aim of this study was to assess
the safety, efficacy and patient satisfaction
of soft X-ray therapy in patients with M.
Peyronie.
J Reproduktionsmed Endokrinol 2012; 9 (5)
337
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
Methods We performed an univariate retrospective analysis of 233 patients who underwent a radiotherapy between 1999 to 2008
with 8 fractions of 4 Gy over a period of 6
months. 83 patients (27%) responded to a
comprehensive questionnaire, which covered patient characteristics, disease duration
prior to radiotherapy, comorbidities, previous treatments, course of disease, treatment
response, side effects and patient satisfaction.
Results Median age at the beginning of radiotherapy was 57.5 years. Patients were initially seen by urologists (61%), general
practicioners (24%) or dermatologists (6%).
33.7% also suffered from one or more benign cutaneous fibromatoses, including M.
Dupuytren, M. Ledderhose or knuckle pads,
while no other disease-specific comorbidities were observed. In avergage patients saw
a doctor 4.6 months after observing first
signs of disease and 20% had received other
treatments prior to initiation of radiotherapy
at around month 8 of disease. Most prominent symptoms were penile induration, deviation, erectile pain and dysfunction. Disease progression stopped in 78.3% of patients with amelioration of erectile pain in
75.3%. 42.4% observed reduced penile curvature and 41.7% showed a reduction of
plaque induration. Treatment satisfaction
was rated with a median of 8 in a visual analogue scale of 10. Side effects included transient erythema in 38.6% of patients . 9.6%
reported transient or chronic dryness. 12% of
patients reported teleangiectasias in the irradiated field. No severe side effects were observed.
Conclusion Soft X-ray radiotherapy for
early stage M. Peyronie is safe, clinically effective and has a high patient satisfaction
rate. Patients should be evaluated for associated cutaneous fibromatoses.
 ECA Session 1: Developmental Determinants in
Male Reproductive Health
55
Prenatal Determinants of Adult
Male Reproductive Health
M. L. Eisenberg
Male Reproductive Medicine and Surgery, Department
of Urology, Stanford University School of Medicine,
Stanford (CA), USA
Anogenital distance (AGD) is a marker for
endocrine disruption. During sexual development, the immature genital precursors migrate via an androgen mediated pathway.
Animal studies have demonstrated that abnormal genital lengths reflect aberrant genital formation with impaired testicular function. Recent evidence supports similar findings in humans. Studies in infants have
shown abnormal AGD in boys with genital
malformations. Studies in adults have shown
that AGD is a measure of testicular function
338
J Reproduktionsmed Endokrinol 2012; 9 (5)
as assessed by sperm and testosterone production.
The clinical utilization of AGD has also been
explored to assist with men with infertility as
a novel metric to assess intrinsic testicular
function. The determinants of AGD continue
to be elucidated. Rodent studies have shown
that endocrine disruptions at critical time
points during gestation can lead to abnormal
genital development including shorter AGD
in males. Recent evidence supports that human AGD is also defined by both intrinsic
and extrinsic factors which are at play during
fetal life.
rated fats was negatively related to sperm
concentration.
We have recently conducted large studies
among European, young men from the general population and fertile European and
American men in which we have studied the
effect of lifestyle factors on semen quality
and serum reproductive hormones and data
will be presented.
56
Modifying Effects of Prenatal and
Postnatal Lifestyle on Semen
Quality and Fertility
M. Solomon, N. Erasmus, R. Henkel
University of the Western Cape, Department of Medical Bioscience, Bellville, South Africa
T. K. Jensen
Department of Environmental Medicine and Rigshospitalet, Department of Growth and Reproduction,
University of Southern Denmark
Western lifestyle has changed dramatically
during the past 50 years and changes in
lifestyle factors may contribute to the observed adverse trends in male reproductive
health Lifestyle factors include BMI, smoking, caffeine and alcohol intake, diet and
psychological stress. Obesity is reaching
epidemic proportions worldwide, and the
prevalence of smokers is high in many
Western countries. Several studies of men
from the general population and of infertile
men have shown that obesity is associated
with reduced semen quality. Smoking has
also been found to impair semen quality,
and a recent Danish study among men from
the general population found a dose-response relationship between smoking on
the one hand and sperm motility and total
sperm count on the other. Maternal smoking during pregnancy has been found to
have a negative impact on semen quality
among the offspring, indicating that prenatal exposure is also important. Studies on
the association between caffeine and alcohol intake and semen quality have been inconclusive, partly because they were conducted on highly selected groups of either
infertile men or fertile men undergoing vasectomy.
Psychological stress has been implicated as a
cause of idiopathic infertility. Most studies
have been conducted among infertile populations making it difficult to differentiate between stress as a cause or consequence of infertility. In addition, the availability of a
wide range of different tools to assess stress
and other psychological conditions makes
comparison across studies difficult. A recent
Cochrane review suggested that treatment of
the male partner with antioxidant supplementation may improve live birth and pregnancy rates for infertile couples undergoing
infertility treatment, although no convincing
effect on semen quality was found. A newly
published study among 99 US men attending
an infertility clinic found high intake of satu-
57
In vivo Effects of Eurycoma longifolia (Tongkat Ali) Extract on Reproductive Functions in the Rat
In South East Asia, the root extract of Eurycoma longifolia (Tongkat Ali; TA) is widely
used in traditional medicine for its cytotoxic,
antimalarial, anti-ulcer, antipyretic and aphrodisiac properties. It is even used to treat
male infertility. Since no study was conducted to prove these pro-fertility effects in
an animal model, this study aimed at investigating thein vivoeffects of TA on male reproductive functions in the rat.
A total of 42 male rats were divided into a
control, low dose (200 mg/kg of BW) and
high dose (800 mg/kg of BW) group, consisting of 14 animals per group. The animals
were force fed the extract for 2 weeks and
then sacrificed. The total body and organ
weights of the liver, prostate, epididymides,
testes, gastrocnemius muscle, and adipose
tissue from the greater omentum were isolated and recorded. In addition, the following parameters were assessed: serum testosterone concentration, sperm concentration, motility, velocity, vitality, mitochondrial membrane potential (MMP).
While TA treatment significantly decreased
total BW (p = 0.0276), omentum fat mass
(p = 0.0496), testicular weight increased significantly (p = 0.0042). Epididymal weight
(p = 0.0513) and testosterone concentration
(p = 0.0544) increased markedly. Lean
muscle weight of the gastrocnemius muscle
also increased, yet not significantly.
Moreover, sperm parameters increased significantly; sperm concentration (p < 0.0001),
motility (p < 0.0444), vitality (p = 0.0156)
and sperm velocity (p < 0.0298). Improvement
in MMP showed a clear trend (p = 0.0765).
In conclusion, TA enhances testosterone levels and thereby sperm parameters. It also
changes metabolism from catabolic to anabolic state. Thus, TA appears to be suitable
to treat male infertility and aging male problems.
58
Why Androgen based Male Hormonal Contraception Lacks Efficacy: Evidence from a Mouse
Model
O. O. Oduwole1, N. Vydra1, 2, N. Wood1, I. T. Huhtaniemi1
1Department of Surgery & Cancer, Imperial College
London, IRDB, London, UK; 2Maria Sklodowska-Curie
Memorial Cancer Centre & Institute of Oncology,
Gliwice, Poland
Introduction The basis of male hormonal
contraception is the suppression of gonadotropins, leading to the disruption of the hypothalamic-pituitary-testicular axis. This can
be achieved by high levels of androgens,
alone or in combination with a gestagen or a
GnRH analogue. The decreased testicular
androgen production deprives developing
sperm of the signal required for normal
maturation, thereby leading to azoospermia
or severe oligozoospermia and reversible infertility in men. Because the treatment involves the administration of testosterone (T),
the question of an appropriate dose is essential. Our aim was to determine with our
mouse model the threshold dose that would
maintain peripheral androgen actions and
anabolic effects without promoting spermatogenesis, which is the prerequisite of an
effective hormonal male contraceptive.
Materials & Methods The experiments were
carried out on LH receptor knockout (LuRKO)
mice. The phenotype of the males includes
low T levels, spermatogenic arrest at the
round spermatid stage, and infertility due to
underdeveloped sex organs. We explored the
effect of T and its nonaromatizable metabolite dihydrotestosterone (DHT), administered
for 90 days with subcutaneous silastic tube
implants, on mating behaviour and spermatogenesis. Using various doses of T, we also determined the minimal dose that induced full
spermatogenesis and restored fertility, as well
as the maximal dose that induced mating behaviour without effect on spermatogenesis.
Results Both T and DHT implants led to the
growth in external genitalia, testicular descent and restoration of full spermatogenesis. A dose of 5 mg T implant effectively
restored full spermatogenesis and partial fertility, with good hormonal profiles. A 2.5 mg
T implant retained azoospermia, or in some
cases led to oligospermia, with enhanced
sexual behaviour and development of reproductive and somatic tissues. Doses of 1.5 mg
and less neither promoted spermatogenesis
nor restored mating. Hence, only a narrow
margin separated the T doses that activated
peripheral androgen effects and spermatogenesis. Interestingly, DHT restored spermatogenesis, but the observed mating behaviour
was lower than with T.
Conclusion The narrow margin in T doses
required for peripheral androgen action and
spermatogenesis may pose a problem for the
development of effective male hormonal
contraceptives. This may be an important
reason why it is difficult to achieve uniform
spermatogenic suppression in men upon hormonal contraceptive trials.
 ECA Session 2: Epigenetic
Mechanisms and Small
RNAs
59
Roles of Small Non-Coding RNAs
in Male Reproduction
W. Yan
Department of Physiology and Cell Biology, University
of Nevada School of Medicine, Reno (NV), USA
Protein-coding genes only account for ~1%
of the eukaryotic genome and > 95% of eukaryotic genome are transcribed into large or
small non-coding RNAs. Increasing lines of
evidence suggest that these non-coding
RNAs play a critical role in fine-tuning the
complex gene expression networks and thus
can affect cellular functions. In general, noncoding RNAs function as sequence guides
and their effects rely on the effector complexes that they recruit. Therefore, the genomic origin of these non-coding RNAs, the
RNA or DNA sequences that they potentially target, and the effector complexes that
they bind usually can give us a hint on their
functional roles. Although several non-coding RNA species have been identified over
the past decade, more and more novel noncoding RNA species continue to be identified and their functions turn out to be surprisingly diverse and complex.
In my talk, I will show you 2 novel classes of
small non-coding RNAs and their physiological roles in male germline development.
Supported by NIH grants HD060858, HD048855,
HD050281, and RR18751.
60
Post-Meiotic Male Genome Programming
S. Rousseaux1, J. Gaucher1, F. Boussouar1, E. Montellier1,
S. Curtet1, T. Buchou1, S. Bertrand1, P. Hery2, S. Jounier2,
A. Depaux2, A.-L. Vitte1, P. Guardiola3, K. Pernet4,
A. Debernardi1, F. Lopez5, H. Holota5, J. Imbert5,
D. J. Wolgemuth6, M. Gérard2, S. Khochbin1
1INSERM, U823, Université Joseph Fourierm, Institut
Albert Bonniot, Grenoble; 2CEA, iBiTec-S, Gif-sur-Yvette;
3
INSERM, U892, Centre de Recherche sur le Cancer
Nantes Angers et UMR_S 892, Université d’Angers,
Plateforme SNP, Transcriptome & Epigénomique,
Centre Hospitalier Universitaire d’Angers; 4INSERM
U836; Université Joseph Fourier, Grenoble Institute
of Neuroscience, Grenoble; 5INSERM UMR_S 1090;
TGML/TAGC, Aix-Marseille Université, Marseille,
France; 6Deptartment of Genetics and Development
and Obstetrics and Gynecology, Columbia University
Medical Centre, New York (NY), USA
Portrait of a master regulator of spermatogenesis: is Brdt really a suitable target for male
contraception?
Male germ cell differentiation is a highly
regulated multistep process initiated by the
commitment of progenitor cells into meiosis
and characterized by major chromatin reorganizations in haploid spermatids. In a re-
cently published work, Matzuk and collaborators have used a new molecule, JQ1, initially developed as an anticancer drug, to inhibit spermatogenesis, and propose that JQ1
could represent a prototype for the development of male contraceptive drugs [Cell
2012; 150: 673–84]. Their hypothesis is that
JQ1, which is known to inhibit the acetyl
binding domains (named “bromodomains”)
of proteins of the BET family, acts on Brdt,
the testis specific member of this family. Our
past and recent work [1–4] demonstrates
that Brdt is an essential regulator of spermatogenesis, acting at several key steps of
male germ cell differentiation, and indeed
supports the hypothesis that a specific targeting of its functions should be an efficient
way of blocking spermatogenesis. However
our data also raise concerns regarding the
possibility of specifically targeting Brdt’s
functions in a reversible manner and whether
its inhibition should actually be considered
as an appropriate strategy for male contraception.
Our recent and extensive exploration of
Brdt’s functions, using 3 complementary
mouse models and genome-wide transcriptomic and epigenomic analyses of maturing
male germ cells, demonstrates that Brdt,
which is activated at onset of meiosis, is a
master regulator of both meiotic divisions
and post-meiotic genome repackaging. Indeed, in meiotic cells, Brdt initiates a histone
acetylation-guided programming of the genome by activating essential meiotic genes
and repressing a “progenitor cells” gene expression program, while at post-meiotic
stages Brdt, via its first bromodomain, directs the genome-wide replacement of histones by transition proteins.
References:
1. Bryant JM, Berger SL. Low-hanging fruit: targeting Brdt in the testes. EMBO J. 2012 Sep 7.
doi: 10.1038/emboj.2012.259. PMID: 22960636.
2. Gaucher J, Boussouar F, Montellier E, et al. Bromodomain-dependent stage-specific male genome
programming by Brdt. EMBO J 2012; Aug 24.
doi: 10.1038/emboj.2012.233. PMID: 22922464.
3. Morinière J, Rousseaux S, Steuerwald U, et al.
Cooperative binding of two acetylation marks on
a histone tail by a single bromodomain. Nature
2009;461: 664–8. PMID: 19794495.
4. Pivot-Pajot C, Caron C, Govin J, et al. Acetylation-dependent chromatin reorganization by BRDT,
a testis-specific bromodomain-containing protein.
Mol Cell Biol 2003; 23: 5354–65. PMID:
12861021
61
UBE2B messenger RNA Mutations
are Associated with Severe Oligozoospermia in Infertile Men
A. Yatsenko1, A. Georgiadis1, L. Murthy2, D. J. Lamb2,
M. Matzuk2
1
University of Pittsburgh, Magee-Womens Research
Institute, Pittsburgh, PA; 2Baylor College of Medicine,
Houston, TX, USA
Oligozoospermia is one of the most common
semen deficiencies diagnosed in male infertility clinics. However, to date, very few genetic defects have been identified to cause
J Reproduktionsmed Endokrinol 2012; 9 (5)
339
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
these conditions. Moreover, no molecular
genetic diagnostic tests are available for patients with oligozoospermia in the andrology
clinic. Based on numerous animal and expression studies of oligozoospermia, we
know that several molecular pathways are
disturbed in postmeiotic spermatozoa. One
of the disrupted pathways of spermatogenesis is protein ubiquitination and cell
apoptosis. A critical protein involved in this
pathway is the ubiquitin conjugating enzyme
2B, UBE2B. It was shown that the absence
of Ube2b in male mice is responsible for
postmeiotic spermatogenesis arrest and increased apoptosis, leading to infertility. Previous human studies of UBE2B presented
significant association between SNPs in the
gene and oligozoospermia. To examine an
association between UBE2B mutations and
severe oligozoospermia (0.1–10×106 cell/ml),
we performed mutation screening of spermatozoal cDNA in 326 oligozoospermic patients and 421 normozoospermic controls.
We identified UBE2B messenger RNA mutations in 20/326 (6.1%) oligozoospermic
patients and no mutations in respective controls (χ2 = 9.8, p = 0.001). However, we detected some of the splicing defects at low
expression levels in 11/421 (2.6%) controls.
To test the statistical effect of their presence
on association, we performed a chi-square
test; statistics show UBE2B association,
albeit with modest significance (χ2 = 6.8,
p = 0.02). A follow-up study of the dbSNP
database did not reveal the UBE2B alterations reported here. Our results corroborate
previous findings from animal and human
studies and suggest that UBE2B associates
with the severe oligozoospermia phenotype,
and perhaps with other unidentified semen
defects (i.e., oligoteratozoospermia, morphology and/or low count defects). In addition, we demonstrate high utility of mRNAs
as potentially powerful biomarkers of genetic defects in haploid male germ cells. We
believe that advances in non-invasive genetic tests will be a vital future diagnostic
tool for oligozoospermia and reproductive
medicine in general.
62
Differential Proteomic Distribution
in the Chromatin of Human Sperm
Cells
remains associated with histones (NH). It is
known that the differential chromatin distribution in the protamine- and histone-associated regions is not random. The NH domain
is significantly enriched in important developmental genes, indicating a potential epigenetic role during the formation of the embryo. In a previous study from our laboratory, we have performed a proteomic analysis of the human sperm nucleus. Among the
proteins characterized, zinc fingers proteins,
transcription factors and several novel histones variants have been described. These
results were unexpected in a cell supposed to
be transcriptionally inactive. The aim of the
present study was to contribute to a more
detailed characterization of the human sperm
nucleus, by establishing the distribution of
the proteins in the NH and NP domains.
Material & Methods Sperm nuclei were
isolated from a normozoospermic semen
sample, which was previously purified from
contaminating cells using 50% Percoll gradients and leukocyte depletion with magnetic
beads. The chromatin was fractionated in
NH and NP domains with a saline treatment,
using a standard approach, and the proteins
extracted from each fraction were then analyzed by liquid chromatography followed by
tandem mass spectrometry (LC-MS/MS).
Results The proteomic results show the identification of 502 proteins, several of which
characterized for the first time in the sperm
cell. A preliminary analysis of our outcomes
confirms, as expected, an enrichment in low
abundant nuclear proteins. Moreover, and
more interestingly, our data suggest that
there is a differential protein pattern in the
two sperm chromatin domains: 78.5% of the
proteins were found exclusively in the NH
fraction, 5.4% in the NP fraction and 16.1%
were present in both fractions.
Conclusions These results open up the possibility of further characterizing these specific proteins and their associated genes,
which likely have a potential epigenetic
function.
Supported by the Ministerio de Economía y Competitividad (BFU2009-07718) and University of
Barcelona (APIF fellowship).
 ESU Course 3: Varicocele
J. Castillo1, R. Azpiazu1, A. Amaral1, M. Jodar1,
J. M. Estanyol2, J. L. Ballescà3, R. Oliva1
1Faculty of Medicine, Phyisiological Sciences I; 2Serveis
Cientificotecnics, Proteomics Unit, University of
Barcelona; 3Institut Clinic de Ginecologia, Obstetricia
i Neonatologia, Hospital Clinic, Barcelona, Spain
63
Surgical Subinguinal Approach to
Varicocele Combined with Antegrade Intraoperative Sclerosis of
Venous Vessels
Introduction The spermatogenic cell experiences an extremely marked chromatin transition during the last stage of spermatogenesis. Histones are disassembled and replaced
by protamines, which are highly positive
charged proteins that form tight toroidal
complexes. However, this structural change
of the sperm chromatin is not complete and,
at the end, 85–95% of human sperm DNA is
packaged by protamines (NP), while 5–15%
G. Bozzini, S. Picozzi, C. Marenghi, M. Rossini,
L. Carmignani
IRCCS Policlinico San Donato, Academic Department
of Urology, Milan, Italy
340
J Reproduktionsmed Endokrinol 2012; 9 (5)
thus expensive, and the treatment of varicocele still causes some complications and recurrences (Fig. 1, 2).
Methods From September 2007 to December 2010 307 patients underwent sclaerembolization of the spermaic vessels. We
modified and simplified the microsurgical
technique of Marmar and Kim, using a subinguinal approach with intraoperative antegrade sclerotherapy of dilated veins. After
the cord has been clamped, 1.5–3 ml. of 3%
atoxysclerol mixed with 0.5 ml of air is injected.
Results Commonly minor complications
can occur. The most common is transient penile lymphangitis, which cause is unclear. As
the procedure allows selective sparing of the
lymphatic vessels, it avoids hydrocele due to
the performed procedure. Among the reported complications the most frequent was
a penile lymphangitis, which occurred in 9
patients and regressed spontaneously after a
few weeks; 3 patients complained of temporary orchialgia. In no cases did we observe
formation of persistent hydrocele, which is a
constant complication in other techniques
(though with varying rates depending on the
technique and statistics considered), nor
were orchitis, orchiepididymitis, orchio-funiculitis or testicular atrophy observed in
any case. Speaking about learning curve, any
new operator took less than 20 cases to reach
a considerable skill and a satisfactory surgical speed. We observed just one recurrence.
Conclusion This modified technique appears to be easy, safe and cheap. Considered
the promising results in terms of complica-
Introduction Varicocele is treated by different surgical techniques, none of which is
yet acknowledged as the “gold standard”.
Some of these, especially microsurgical
techniques, are very time-consuming and
Figure 1. G. Bozzini et al. (Reprint with permission)
Figure 2. G. Bozzini et al. (Reprint with permission)
tions and persistence, the treatment appears
to be a suitable fist-line approach for surgical
treatment of varicocele.
64
Low Ligation with Oral Treatment
Improves Spermiogram in Infertile
Men
B. Elteer1, 2
1Urology, Central Hospital; 2Urology, Alfairouz Centre,
Tripolis, Libya
Objectives To evaluate the efficacy and
safety of low ligation of spermotic vein with
oral treatment (pampiniform plexuses) for
the treatment of varicocele in infertile cases.
The efficacy parameters include: clinical,
biochemical response (FSH, spermogram,
pregnancy rate of partners).
Materials & Methods From 2006 until
2012 about 1000 patients in our clinic was
seen, patient age 20 to 40 years with grade 2
to grade 3 varicocele were complain of scrotal pain and abnormal semen analysis, were
included in the study.
Color Doppler ultrasound was used to measure testicular volume and vein diameter before the surgery. 3 months of post operation
and follow-up visit, semen analysis result
was obtained at the same time. The intervals
are 30% where bilateral varicocele, 55%
where left varicocele and ultrasound with no
varicocele is in 15%.
Results All patients were treated surgically
and medically (oral supplement). The mean
of operation time was 20 minutes for unilateral and 40 minutes for the bilateral. In 3
months of post-operation showed hydrocele
in 5% of all cases, pregnancy occurred 40%
in other cases and at the earlier 3 months of
post-operation 10% patients never come
back for their follow-up.
Conclusion Low ligation and oral treatment
had improve spermogram and it can save
cost, theater time, hospitalizations, and patients time for work.
65
Antegrade Scrotal Sclerotherapy
for the Treatment of Varicocele in
Adults, Childhood and Adolescence
R. Tauber1, R. L. Tauber2, S. Tauber1, C. Brunken1,
D. Pfeiffer3
1
Urolgoy, Asklepios Klinik St. Georg, Hamburg; 2Urology, Technical University, Munich; 3Urology, Asklepios
Klinik Barmbek, Hamburg, Germany
Since 1988 we performed antegrade sclerotherapy for varicocele in about 8000 adults,
adolecences and children.
The recurrence and persistence-rate in adults
was 8%, in children lower than 3%.
To avoid complications during the dissection
of the pampiniform plexus detailed knowledge of the architecture of the spermatic cord
is recommended. Phlebography of the inter-
nal testicular vein is mandatory. Sclerosing
of the artery testicularis is strictly forbidden
and is the reason for testicular destruction.
Paravasation of sclerosing agent has to be
recognized and treated immediately to prevent deleterious effects.
We never saw a hydrocele, therefore it is neither necessary to deliver the testicle, nor to
identify the lymphatics passways by
isosulfan blue.
Retrograde sclerotherapy is not possible if
the spermatic veins cannot be probed selectively in 11-13% and have a recurrence-rate
of 8%. Instead the antegrade sclerotherapy
can be done in 99%.
The radiation exposure is 2–4 seconds, for
the retrograde sclerotherapy 1–4 minutes
(Porst, Wunsch).
It can be done in local anaesthesia on outdoor patients on a x-ray table.
We present follow-up results of 129 children
and adolescences, who were operated by one
surgeon. Follow-up was between 8–20 years.
Recurrence rate was less than 3%.
In the hands of experienced surgeons the
treatment is easy with a low complication
rate; correction of varicocele might be carried out prophylactically in early puberty to
prevent testicular hypoplasia and dysfunction.
The operating time and the economic effectiveness will be compared to the other treatments of varicocele.
The treatment is recognized as a low cost,
safe, fast and effective management of varicocele. It seems to be the treatment of choice
in treating the varicocele.
cocelectomy) for reflux recurrence exclusion, and 2 postoperative semen analyses
(respectively 14 and 22 weeks after varicocelectomy). Semen samples were analyzed
according to the WHO criteria in force at that
specific time and sperm concentration, forward motility and morphology were recorded. According to the CDU, venous reflux, was classified as basal continuous
when, in standing position, a spontaneous
reflux independent from respiration and increasing during Valsalva manoeuvre was
registered, and basal intermittent, when, under the same conditions, a discontinuous reflux synchronous with breath movements
was documented. At the end, out of 1.775
infertile patients, 360 met all inclusion criteria and were considered for the study: 319
patients showed continuous reflux (group A),
whereas 41 had intermittent reflux (group B).
Results Preoperatively, compared to the
group A, group B showed both higher sperm
concentration (p = 0.03) and morphology
(p < 0.0001) without differences regarding
sperm forward motility. Moreover, compared to the baseline, after varicocelectomy,
neither sperm concentration, nor sperm motility, nor sperm morphology improved in
the group B, whereas all sperm characteristics improved 14 and 22 weeks after varicocelectomy in the group A (p < 0.0001).
Conclusions Preoperative semen parameters were found worst in infertile varicocele
patients with a basal continuous reflux, and
varicocelectomy improved significantly
sperm quality only in this group of men;
based on our results, infertile patients with a
discontinuous reflux on CDU should not be
submitted to varicocelectomy.
66
Color Doppler Evaluation of Spermatic Vein Reflux predicts Sperm
Quality Improvement following
Varicocelectomy
 ECA Session 3: Sexual
Dysfunction and Erectile
Failure
F. Pelliccione, M. Castiglioni, F. M. Castiglioni,
F. Ciociola, F. Nerva, G. Contalbi, L. Vaccalluzzo,
P. Sulpizio, G. M. Colpi
Andro-Urology and IVF Unit, San Paolo Hospital,
University of Milan, Italy
67
Sexual Dysfunction and Erectile
Failure: New Aspects from the
Urological Point of View
Introduction To date, impact of varicocelectomy on semen parameters is controversial probably because clear preoperative
selection criteria of patients to be submitted
to varicocele surgery are still lacking. In this
study we considered the characteristics of
venous reflux, detected with Color Doppler
Ultrasound (CDU), as a criterion for selecting infertile men candidate to varicocelectomy.
Materials & Methods Since 1983 our group
designed a prospective protocol on infertile
patients affected with varicocele based on
two preoperative semen analyses (basal and
repeated three months later), a preoperative
CDU in standing position to assess venous
reflux along the spermatic and the pampiniform plexus veins, surgical varicocelectomy,
a postoperative CDU (one month after vari-
E. Wespes
Hôpital Civil de Charleroi, Charleroi, Belgium
The PDE5 inhibitors have completely changed
the diagnostic and therapeutic approach of
ED. For the non-responders, some maneuvers can improved the results: better education, testosterone substitution in hypogonadism patients and daily use. Chronic use of
PDE5-I also improves endothelial function of
the entire vascular system by modifying the
inflammatory process.
The treatment of prostate carcinoma could be
at the origin of ED. First of all, erectile function evaluation is different before or after
prostate biopsy or cancer announcement.
Delayed surgery in patients under active surveillance alters erectile function. Radical
prostatectomy (RP) for localized carcinoma
J Reproduktionsmed Endokrinol 2012; 9 (5)
341
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
in any form provokes ED and the results between the various techniques seem to demonstrate no difference in functional outcomes. More than the technique, the surgeon
experience is important.
Penile rehabilitation has to be performed immediately after catheter removal. RP destroys NO production and therefore muscular relaxation but it increases Rho kinase system and muscular contraction.
For non-localized prostate cancer, testosterone deprivation could be administrated.
However, in patients with cardiovascular
problems, it could be deleterious and quickly
after the treatment onset.
Peyronie’s disease is due to poor cicatrisation of the tunica albuginea injuries. PDE inhibitors by increased NO inducible could be
used as treatment mainly in the inflammatory
process.
These different subjects will be discussed
according with the new research studies in
those fields.
68
Sexual Dysfunction and Erectile
Failure: New Aspects from the
Andrological Point of View
A. M. Isidori
Sapienza University of Rome, Department of Experimental Medicine, Rome, Italy
In past decade clinical andrology has witnessed a profound change in the attitude toward diagnosis and management of sexual
dysfunctions. The unrevealing of the pathophysiology of all phases of the sexual act, on
one side, and the acknowledgment of the impact of systemic diseases on erectile function, on the other, have forced a transformation of the andrologist into a physician dedicated to men’s health.
A bidirectional process of integration of
andrology into general and internal medicine
has occurred. The role for androgen replacement therapy has widely expanded from ‘just
for libido’ to a cardiovascular and metabolic
modulator. Conversely, PDE5 inhibitors are
now a standard treatment for pulmonary arterial hypertension. Our recent studies suggest that PDE5 inhibitors may also exert and
anti-remodeling effect in diabetic cardiomyopathy and could have a role in the prevention of heart failure.
The advancement in the immunopathology of
the prostate and accessory glands disclosed
novel treatment strategies. Finally, the increased use of assisted reproductive technologies have generated novel psychological issues in the field of sexual dysfunction.
A novel PDE5i, avanafil, has been approved
and the patent of sildenafil is about to expiry.
The debate on chronic vs. on demand use of
pro-erectile drugs continues, in search of a
curative -rather than symptomatic- treatment
for erectile dysfunction. The safety and efficacy of PDE5i in special populations, such
as vardenafil in subjects with high cardiovascular risk, has been recently reviewed.
342
J Reproduktionsmed Endokrinol 2012; 9 (5)
All these small revolutions contributed to the
transformation and expansion of the figure
of the clinical andrologists. A special focus
will be given to the off-label use and novel
indications for the andrological treatments.
69
Efficacy of PSD502 (TEMPE) is
similar in Lifelong and acquired
Premature Ejaculation on Initial
Dosing and in the Long Term
M. Wyllie
Global Pharma Consulting, Borden, UK
Introduction & Objective TEMPE (PSD502)
is a metered-doses, aerosolised eutectic-like
mixture of lidocaine and prilocaine that has
been shown to be effective in two phase III
studies in premature ejaculation (PE) [1, 2].
As the entry criteria were based on the ISSM
definition, only patients with lifelong PE
were included in the analysis. One of the primary endpoints was intra-vaginal ejaculatory latency time (IELT) although there was
good concordance with data captured from
the index of premature ejaculation (IPE)
questionnaire. It is expected that the majority
of patients presenting to the physicians’ offices will have lifelong (LL) PE, but a substantial number are likely to have acquired
(Acq) PE; it is obviously important that the
impact of any novel potential therapeutant is
evaluated in this patient sub-set.
Methods In one of the protocols, data from
a number of patients with acquired PE was
captured and is presented in this abstract.
Results At baseline the IELT (seconds) was
similar for all groups (Placebo LL 29.4; Acq
34.3; PSD502 LL 31.4; Acq 40.2). Likewise,
at 3 months the IELT observed in both subsets was similar for both placebo (LL 43.6;
Acq 38.9) and active (LL 111.7; Acq 104.6).
Quantitatively similar changes in the domains of the IPE were also noted for PSD502
with placebo only producing marginal
changes.
Conclusions Although the number of patients in the acquired group was relatively
small, it can be concluded that in both lifelong and acquired PE, placebo produced
only marginal changes in IELT whereas in
both forms of PE, PSD502 produced clinically significant changes in IELT. In general
the changes in IELT were mirrored in the
changes in the satisfaction, control and distress domains of the IPE. Overall, it is likely
that the response to PSD502 will be similar
in men with lifelong or acquired PE. This
would be consistent with the proposed
mechanism of action of reducing penile hypersensitivity while leaving the „normal“
ejaculatory reflex intact. [3]
References:
1. Carson C, Wyllie MG. Improved ejaculatory
latency, control and sexual satisfaction when
PSD502 is applied topically in men with premature ejaculation: results of a phase III, doubleblind, placebo-controlled study. J Sex Med 2010;
7: 3179–89.
2. Dinsmore WW, Wyllie MG. PSD502 improves
ejaculatory latency, control and sexual satisfac-
tion when applied topically 5 min before intercourse in men with premature ejaculation: results
of a phase III, multicentre, double-blind, placebo-controlled study. BJU Int 2009; 103: 940–9.
3. Wyllie MG, Hellstrom WJ. The link between
penile hypersensitivity and premature ejaculation. BJU Int 2011; 107: 452–7.
70
Sexual Dysfunctions Induced by
Stress of Timed Intercourse and
Medical Treatment
C. Bak1, J. S. Byun1, J. H. Lee1, S. W. Lyu2, H. H. Seok2,
S. H. Shim2
1Androlgoy, Zaii Medical Centre; 2CHA University,
Fertility Centre, Seoul, Republic of Korea
Introduction Male sexual dysfunction is
highly prevalent and is one of the most common health complaints reported by men.
Erectile dysfunction (ED) is a major problem, and ejaculatory dysfunction (EjD), including premature ejaculation (PE), delayed
ejaculation (DE), anejaculation, and retrograde ejaculation, is common. Treating ED
with tadalafil, a phosphodiesterase type-5
inhibitor (PDE-5i), has been shown to be effective. The hypothalamic-pituitary-adrenal
axis instigates a cascade effect that eventually results in cortisol production that may
play causative roles in the ED induced by
stress. Timed intercourse (TI) during the fertile window of a woman’s menstrual cycle
has been widely adopted and is frequently
prescribed by fertility specialists to assist
couples attempting to conceive. Men represent one half of each couple endeavoring to
conceive naturally. The impact of impending
TI on the psychological well-being and
sexual dysfunction of male partners has not
been thoroughly investigated, however.
Methods This study consisted of 439 men
and was conducted during a 3-year period
between July 1, 2008 and June 30, 2011.
Various characteristics were evaluated, including newly acquired ED, EjD, anxiety
levels (using the Beck Anxiety Inventory),
self-reported aggression (using the Buss
Perry Aggression Questionnaire), hormone
levels (such as follicle-stimulating hormone
[FSH], luteinizing hormone [LH], testosterone [T], prolactin [PRL] and estradiol [E2]),
and semen parameters.
Results 188 of the men (42.8%) and 26 of
the men (5.92%) experienced ED and EjD,
respectively. Additionally, anxiety, anger,
hostility, and aggression intensified as the
number of TI episodes increased. The numbers of men with ED or EjD also increased
with TI (p < 0.0001). LH, T and E2 were significantly lower in the men with ED (p <
0.05). The men who required high doses of
tadalafil (10 mg) had significantly higher
scores on both the BAI and the BPAQ
subscales (p < 0.0001). TI imposes a great
deal of stress on male partners, potentially
causing ED and EjD. TI also elevates anxiety
levels, which leads to aggression.
Conclusions Physicians and clinicians
should acknowledge the potentially harmful
effects of TI on men. Furthermore, both fe-
7th ECA-Congress – Abstracts
 ECA Session 4: Pick One
and Inject – Will any Old
Sperm do for ART?
71
Current Status and Unresolved Issues in ICSI
H. Tournaye
Centre for Reproductive Medicine, University Hospital, Dutch-speaking Free University Brussels, Belgium
Thanks to ICSI it became possible to obtain
offspring in couples with severe male factor
infertility and even azoospermia and this insemination technique is now increasingly
used even in patients with borderline semen
parameters. But although introduced 20
years ago, still some patient categories will
show poor outcome after ICSI, i. e. patients
in which only senescent sperm available, patients with acrosomeless spermatozoa and
patients presenting with immotile spermatozoa. Limited progress has been made to alleviate the poor ICSI outcome. Treatment of
non-obstructive azoospermia by ICSI too is
not invariably successful because chances to
recover testicular spermatozoa are limited as
are the chances for a pregnancy after ICSI itself. Finally, follow-up data in many subgroups of after ICSI are insufficient to reassure candidate-parents that this approach is
absolutely safe.
72
Sperm Biology Function Tests in
Relation to Assisted Reproductive
Techniques (ART)
E. Baldi
Department of Clinical Physiopathology, Sexual
Medicine and Andrology Unit, University of Florence,
Italy
ARTs represent the only option for many
cases of male factor infertility. It is well
known that the rate of malformation recorded at ART cycles is higher respect to
spontaneous pregnancies [Hansen et al,
2004]. A large body of evidence in the literature however demonstrates that the risk
is not due to the procedures but rather to
factors related to gametes. It has been recently reported that the risk of major malformations is higher in case of ICSI children from subfertile couples even after adjustment for confounders such as maternal
age and other risk factors [Davies et al,
2012]. As ICSI is mostly applied in case of
severe male factor infertility, these results
pointed out the need for tests assessing
sperm quality to add to poorly informative
routine semen analysis. In particular, evaluation of sperm DNA/chromatin quality
(DNA strand breaks, base oxidation, chromosomal aberrations, methylation, extent
of protamination, status of sulfhydril
groups) may be of help in these cases as all
these damages can be transmitted to the
progeny. In addition, there is now evidence
of presence of RNA and miRNA in spermatozoa, whose significance is presently unknown. At the same time, sperm functional
tests may be of help for the clinician to
choose the more appropriate technique
(IVF or ICSI) and thus to increase the
chance of ART success. Virtually, each step
of the fertilisation process can be monitored
both by evaluating the expression of the
proteins specifically involved in each step,
as well as by functional tests evaluating
sperm ability to encompass it. In particular,
sperm ability to undergo capacitation, to
develop hyperactivated motility, to respond
to stimuli inducing acrosome reaction and
to fuse with oolemma, can be all assessed
by functional tests with known predicting
values of IVF outcome.
Promises and pitfalls of such evaluations
will be discussed.
73
Use of In vivo Monitoring Techniques to Select the best Sperm
for ICSI
C. Mallidis
Centre for Reproductive Medicine and Andrology,
University Clinic Muenster, Germany
Despite recent technological and analytical
advances in the field of reproductive medicine, fertility clinics worldwide are still confronted with the large disparity between the
high fertilisation rates now achievable by
modern ART techniques and the concomitantly low pregnancy and/or take home baby
rates. The introduction of the many and varied, modern techniques has significantly increased the amount of information available
to scientist and clinician alike, however the
ability to non invasively and non destructively assess, then select a homogeneous
sperm population, all of which are capable of
successfully achieving a pregnancy and a
healthy baby remains elusive. Numerous
methods aimed at identifying and selecting
the best sperm for ICSI have been suggested
over the years, amongst others: intracytoplasmic morphologically selected sperm injection (IMSI), the use of hyaluronic acid,
zona-binding, zeta potential, birefringence,
hyper osmotic swelling (HOST), surface
markers with magnetic activated cell sorting
(MACS). As well as these more established
procedures there have been promising technological developments such as confocal
Raman microspectroscopy and microfluidic
“labs on chips”. The purpose of this presentation is to describe the various sperm selection methods, discuss their advantages and
disadvantages review the available studies
on their efficacy and appraise their potential
clinical use.
74
The Impact of RNA Expression in
Human Spermatozoa on Male Fertility
H. Cappallo-Obermann1, H. Jastrow2, W. Schulze1,
A.-N. Spiess1
1Department of Andrology, University Hospital Hamburg-Eppendorf, Hamburg; 2Institute of Anatomy, University of Duisburg-Essen, Essen, Germany
Introduction Our aim is to identify markers
on a molecular level for improved prediction
of IVF treatment success.
Human spermatozoa express a spectrum of
different types of RNA, among them messenger RNA (mRNA), ribosomal RNA (rRNA),
micro RNA (miRNA), PIWI-interacting
RNA (piRNA). We suppose that they influence male fertility not only individual but
also in concert. Our aim is to investigate the
expression of these RNA species in the same
ejaculates to determine the impact of their
interaction on male fertility.
Material & Methods Ejaculates were pelleted
after liquefaction by centrifugation. In case
of studying pure spermatozoa ejaculates
were fractionated by Percoll gradient centrifugation before. Total RNA was isolated
by RNeasy Plus Micro Kit. Small RNAs
were enriched by raising ethanol from 35%
to 60% in the flowthrough of the RNA binding column. Microarrays were hybridized
with amplified RNA. Ratios of intact ribosomal RNAs (28S/18S rRNA) were determined by calculating the corresponding peak
areas of electropherograms (Bioanalyzer).
Ribosomes were investigated in sections of
spermatozoa with transmission electron microscopy (TEM).
Results
1. mRNA: Gene expression profiles of ejaculates from 25 donors with normozoospermia
[WHO guidelines, 2010] showed a high degree of individual heterogeneity with low
correlation to fertilisation rates and pregnancy rates of IVF treatment. However, filtering with ANOVA revealed a group of
genes which separate ejaculates into three
groups according to the outcome of IVF
treatment (pregnant, not pregnant, no fertilisation of the oozyte).
2. mi RNA: Human ejaculates contained a
high amount of small RNA species (< 200 nt).
Besides a fraction of mi/piRNA, they mainly
contained small rRNA (5S, 5.8S) and transfer RNA (tRNA). In purified spermatozoa,
rRNA and tRNA were nearly absent while
the portion of the pi/miRNA fraction largely
increased. We developed a method to isolate
total RNA and small RNA from the same
preparation, which enabled us to study gene
expression and miRNA profiles by
microarray hybridization in parallel.
3. Ribosomes, rRNA: Electropherograms of
total RNA preparations of pure spermatozoa
revealed a remarkably reduced ratio of intact
28S and 18S rRNA molecules of 1:20 compared to the expected ratio of 1:1 in ribosomes. However, ribosomes were identified
in the cytoplasm of many spermatozoa by
TEM.
J Reproduktionsmed Endokrinol 2012; 9 (5)
343
ECA – Abstracts
male and male patients should be cautioned
about the increased likelihood of ED, EjD,
and elevated levels of anxiety, anger, hostility, and aggression as the number of incidents of TI increases.
ECA – Abstracts
7th ECA-Congress – Abstracts
Conclusion Individual heterogeneity of gene
expression profiles of human ejaculates superimposes the effects on fertilisation outcome. Currently, we are investigating gene
expression in combination with expression
profiles of miRNA, rRNA and the ultrastructure of ribosomes to identify correlations to
the fertilisation potential of ejaculates.
 ECA Plenary Lecture 3:
Non-obstructive Azoospermia
75
Non-obstructive Azoospermia
S. Minhas
Urology Department, University College London Hospitals, London, UK
Non-obstructive azoospermia may affect up
to 1% of the male population and 10% of
men who seek fertility treatment.
There are a number of causes for non-obstructive azoospermia including hypogonadotrophic hypogonadism, Sertoli-cell only,
maturation arrest and hypo-spermatogenesis.
This lecture will outline the diagnosis, investigation and management of men with nonobstructive azoospermia.
Non-obstructive azoospermia is caused by
impairment of spermatogenesis and can be
due to a number of causes. Importantly genetic causes including Klinefelter’s syndrome and Y-deletions in particular AZFa, b
and c microdeletions need to be excluded in
men presenting with non-obstructive azoospermia. As part of normal evaluation the
patient should undergo ultrasound scanning
of the testes combined with hormonal assay.
Pending investigations to exclude AZFa and
b deletions, men with AZFc microdeletions
and Klinefelter’s have the ability to father
children by testicular sperm extraction. A
number of methods have been described to
obtain sperm by testicular sperm extraction
in men with NOA, although in the majority
of men, a microdissection sperm retrieval is
performed.
Sperm retrieval rates of approximately 50%
are achieved in men with non-obstructive
azoospermia, although this would depend
upon the primary aetiology of their NOA.
There is some argument as to whether hormone manipulation prior to TESE may be of
use in men with NOA, and in particular patients with Klinefelter’s.
The original description of microdissection
sperm retrieval was described by Schlegel
from New York, but has more recently been
developed by other investigators. Sperm can
be retrieved in even those men with Sertolicell only.
The long-term effects of testicular biopsy on
testicular function are largely unknown although there is an intial reduction in serum
Testosterone which is reversible in most patients. However, there is a significant risk of
344
J Reproduktionsmed Endokrinol 2012; 9 (5)
hypogonadism which patients would need to
be aware of when counselled for microdissection.
This talk will focus on the investigation, and
in particular the technique and outcome of
microdissection sperm retrieval in men with
non-obstructive azoospermia.
 ECA Session 5: Klinefelter’s
Syndrome
76
Imaging of the Male Genital Tract:
From Ultrasound to MRI and Beyond
J. Gromoll1, R. Bongers1, S.Werler1, S. Kliesch1,
M. Zitzmann1, F.Tüttelmann2
1Centre of Reproductive Medicine and Andrology;
2Institute of Human Genetics, Muenster, Germany
P. J. Turek
The Turek Clinic, San Francisco (CA), USA
Objectives Radiographic imaging is integral to the evaluation of male infertility.
Techniques of scrotal and transrectal ultrasonography and vasography constitute the
backbone of imaging technology in male reproductive medicine. However, a need exists
for more quantitative and physiologic assessments of reproductive tract function to
improve the accuracy and precision of infertility diagnoses.
Methods This lecture will review the imaging procedures used to assess the male reproductive tract. The discussion is based on review of Medline and Pubmed online databases in the English literature. Among identified citations, papers were selected on the
basis of quality and clinical relevance.
Results A case-based presentation of relevant imaging techniques in reproductive
medicine. A 28-year old man presents with
primary infertility and a left scrotal mass.
His semen analysis reveals low volume
azoospermia and serum FSH and testosterone levels are normal. What imaging studies
are indicated in this patient? What are the
most common abnormalities found on scrotal ultrasound for male infertility? What is
value of treating subclinical varicoceles?
How sensitive and specific is transrectal ultrasound for ejaculatory duct obstruction?
What is the meaning of testicular microlithiasis in the setting of male infertility? Does an
assessment of testis tissue perfusion improve
sperm retrieval rates with non-obstructive
azoospermia? What emerging technologies
in metabolomic or physiological imaging are
on the horizon and how might they be better
than current diagnostic tests?
Conclusions Radiographic imaging offers
abundant information about the anatomic aspects of male factor infertility. However
much of this information is irrelevant or incidental to the problem, currently limiting its
routine use in the infertility evaluation.
Physiologic or metabolomic technologies
may offer more dynamic and potentially
more precise and relevant information for
this diagnosis.
77
The Muenster EXAKT Project: The
epigenetic Phenotype of XXY
Klinefelter’s syndrome (47,XXY; KS) is a
very common chromosomal disorder, affecting 1:500 men and leading to hypergonadotropic hypogonadism as well as an increased
incidence of metabolic syndrome. However,
our knowledge on the functional role of the
supernumerary X chromosome itself and to
which extent its origin contributes to the observed pathophysiology is still very limited.
Recently we started the EXAKT (Epigenetics, X-Chromosomal features and clinical
Applications in Klinefelter’s syndrome Trial)
project which is a Muenster-based prospective study involving Klinefelter patients (n =
130), and their parents assessing a wide area
of biochemical, physiological and genetic
parameters in comparison to age-matched
healthy male and female controls (2 × n = 50).
The aim of the genetic and epigenetic part of
the EXAKT project is to obtain information
on the paternal or maternal origin and the
meiotic disjunction events leading to the
presence of a supernumerary X chromosome, the inactivation of the second X-chromosome by the non-coding RNA XIST and
the expression of X-linked genes which escape X inactivation.
Determination of the origin of the X chromosome by microsatellite analysis in KS and
their parents revealed a nearly equal distribution between the paternal (56%) and maternal (44%) origin of the second X chromosome. Methylation analysis of the XIST promoter displayed similar methylation patterns in KS patients and women, indicating
grossly normal X inactivation in KS. Analysis of several escapee genes such as KDM6a
and SMCA1 in blood RNA samples of KS
revealed expression levels comparable to
levels detected in women, but significantly
higher when compared to normal men.
The first genetic and epigenetic analyses of
KS within the EXAKT project revealed a
normal X chromosomal inactivation status,
but elevated expression patterns of escapee
genes indicate a pathophysiological role of
the supernumerary X chromosome.
Supported by the IZKF Muenster: CRA03/09
78
Klinefelter’s Syndrome: an Update
A. Juul
Rigshospitalet, Department of Growth and Reproduction, Copenhagen, Denmark
Klinefelter’s syndrome (47,XXY) is the
most frequent chromosome disorder.
Patients with Klinefelter’s syndrome share
numerous clinical characteristics, although
marked variability exists betgween patients.
Consequently, only 25% are ever diagnosed.
Phenotypic characteristics include increased
learning disabilities, height, truncal fatness,
osteopenia, small testes, hypoandrogenaemia
and azoospermia. Updates results regarding
phenotype and current treatment options will
be discussed.
79
Number and Protein Expression
of Sertoli Cells is Altered in 41,XXY*
Mice, an Animal Model of
Klinefelter’s Syndrome
J. Wistuba1, H. Demond1, S. Werler1, O. S. Damm1,
J. Ehmcke2, S. Schlatt1, J. Gromoll1
1Centre of Reproductive Medicine and Andrology,
Institute of Reproductive and Regenerative Biology;
2
Central Animal Facility of the Faculty of Medicine,
Muenster, Germany
Introduction The male genetic disorder
Klinefelter’s syndrome (KS) is characterized
by a supernumerary X-chromosome. In the
majority of patients apart from hypergonadotropic hypogonadism, complete germ cell
loss is found after puberty indicating problems in the maintenance of the spermatogonial stem cell (SSC) population. However,
only little information is available on the fate
and development of the somatic Sertoli cells
(SC) which are also essential for germ cell
survival in the disturbed testicular environment. Therefore, we analyzed the SC population histologically and immunohistochemically during testis development using our
41,XXY* mouse which is a sufficient animal
model for KS, resembling endocrine, cognitive and testicular phenotype associated with
this sexchromosomal condition.
Material & Methods Immunohistochemical stainings against Anti Muellerian Hormone (AMH) as a maturation marker and
5 methylcytosin (5meC), de novo methyltransferase (Dnmt) 3a and 3b reflecting important regulatory functions of SC were performed in testes of different developmental
stages (1, 3, 5, 10, 14, 21 d pp and 30 wks pp;
n = 3 each) of males with a 41,XXY* karyotype, 40,XY* littermate and 40, XY C57bl/6
controls. SC number was assessed using unbiased optical disector stereology on samples
from 30 weeks old adult (n = 4) and 90 week
old aged (n = 3) mice.
Results In adult mice, stereology revealed
significantly, almost 2-fold higher numbers
of SC per volume unit in XXY* mice. However, correlated to the organ size, SC number
per testis in these animals was approximately
3-fold lower compared to controls (SC hypoplasia), a finding which was even more pronounced in aged mice but here also the number per volume unit was already lower. AMH
expression was detected in controls up to day
10 pp. Whilst no AMH expression was seen
in these controls on day 14 pp, it was still
present in 41;XXY* mice, indicating a delayed maturation of SC during postnatal de-
velopment. Interestingly, in a single case of
focal spermatogenesis found in one 41, XXY*
mouse (aged 14 d pp), in the few tubules that
contained differentiating germ cells, AMH
expression was not longer present. No differences were found between the groups in the
expression patterns of 5meC and Dnmt3a.
However, on day 21pp Dnmt3b was expressed only in SC of 41, XXY*, but not in the
control mice.
Conclusion SC number, maturation and
physiology is altered in 41, XXY* male mice,
indicating that the disturbed karyotype of the
animals also affects SC which might therefore contribute to the germ cell loss, the
structurally disturbed testicular morphology
and the endocrine phenotype observed in
KS. Observations in tubules with focal spermatogenesis suggest the SC - germ cell communication to be involved.
The study was supported by the DFG (Grant No.
WI2723/4-1).
 ECA Session 6: Andrological Implications of Genital Tract Infections
80
Regulatory T Cell (TREG) is a critical Physiological Mechanism
against Testicular Autoimmunity
liferation. We studied recombinant LDH3
and zonadhesin (ZAN) antigens. Testis injury is determined by testis wt, histology (orchitis, IC detection, spermatogenesis), epididymal sperm, SCB integrity and analysis by
immunoblot and IF.
Results These findings support our hypotheses. First, Testis cell specific antibody
(including LDH3) and severe AO develop
rapidly in DEREG mice treated with DT; AO
disrupts germ cell production, by massive
immune complex (IC) that invades and
ablats SCB integrity. Second, uni-vx mice
are resistant to subsequent induction of EAO
but not EAE, indicative of testis Ag-specific
tolerance; however, Treg depletion by CD25
mAb in uni-vx mice results in T cell-mediated bilateral AO, autoAb to Zan but not
LDH3. Third, LDH3 egresses outside the
SCB of normal mice and form ICs with iv
LDH3 Ab; unlike LDH3, Zan is sequestered.
Fourth, in mice immunized with testis homogenate, female surpass male mice in response to LDH3 but they respond equally to
ZAN.
Conclusions Treg continuously protect the
testes from autoimmunity. This critical
physiological Treg function is maintained by
non-sequestered meiotic cell Ag. Two major
mechanisms of spontaneous autoimmune orchitis are defined. The first is post-vx AO,
triggered by sequestered Ag for which systemic tolerance is lacking. The second is AO
triggered by non-sequestered Ag in mice
with defective or low Treg capacity.
K. Tung1, K. Wheeler1, J. Harakal1, C. Rival1, H. Qiao1,
Y. Cheng2, D. Hardy3, E. Goldberg4
1Pathology, University of Virginia, Charlottesville (VA);
2
Population Council, New York (NY); 3Texas Tech University, Lubbock (TX); 4Northwester University,
Evanston (IL), USA
Supported by NIH grant RO1 AI 41236.
Introduction A popular paradigm for the
control of testis autoimmunity depends on
local mechanisms including the Sertoli cell
barrier (SCB) that sequesters male meiotic
cell antigens (Ag). Herein, we test the novel
hypothesis that: (1.) Some meiotic cell Ag
are not sequestered; they maintain physiological Ag-specific Treg function, (2.) Ag
specific Treg normally prevent autoimmune
response and autoimmune orchitis (AO) by
continuously suppressing pathogenic T cell
response to autologous meiotic cell Ag; and
(3.) the sequestered meiotic cell Ag are not
protected by systemic tolerance. We therefore explore Ag-dependent mechanism operating outside testis, and new mechanisms of
AO.
Material & Methods Treg markers are IL2
receptor (CD25) and the transcription factor
Foxp3. 98% Treg are depleted for 1 wk from
the DEREG mice (diphtheria toxin [DT] receptor-Foxp3 transgenic B6AF1 mice) by
DT. 60% of Treg are depleted for 5 wks from
wild type B6AF1 mice by CD25 mAb. Unilateral vasectomy (uni-vx) is ligating one
vas. EAO (orchitis) and EAE (encephalomyelitis) are induced by testis Ag and brain Ag
injected with adjuvant. Germ cell Ab is detected by ELISA and immunofluorescence
(IF); and T cell response by Ag specific pro-
F. Wagenlehner
Department of Urology, Pediatric Urology and Andrology, Justus-Liebig-University Giessen, Germany
81
Prostatitis and Andrological Implications
Introduction The prostatitis syndrome is a
frequent disease affecting men in their reproductive age. Population assessed prevalence
of the prostatitis syndrome is up to 12%. The
prostatitis syndrome is classified according
to the NIH definition in acute and chronic
bacterial prostatitis, chronic pelvic pain syndrome and asymptomatic prostatitis. The
WHO definition of male accessory gland infection in men does not differentiate between
prostatitis, epididymitis, and other inflammatory alterations of the urethral compartment. The NIH definition is therefore used.
Andrological implications might encompass
fertility issues, sexual dysfunctions and endocrinological alterations in an unknown
percentage.
Material & Methods A medline search using the terms prostatitis AND andrological
implication, fertility, sexual dysfunction or
endocrinology was performed. References
were augmented according to personal experience.
Results Acute bacterial prostatitis and andrological implications have not been adequately addressed. Beeing a severe acute
J Reproduktionsmed Endokrinol 2012; 9 (5)
345
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
infection andrological implications might
not play a predominant role.
Patients with chronic bacterial prostatitis and
chronic pelvic pain syndrome have been investigated in several studies evaluating
sperm parameters. Some studies showed impaired sperm parameters. In chronic bacterial prostatitis half of the patients reveal significant bacteriospermia with still debatable
deleterious effects on sperm quality. Few
interventional studies have addressed fertility issues in those patients. Antiinflammatory treatment perhaps might have a positive
impact on sperm parameters. Functional
sperm disorders, such as acrosomal dysfunction have been attributed to chronic prostatitis syndromes, but are not well defined.
Sexual dysfunction can be described by different components such as erectile, ejaculatory, orgasmic and sexual desire dysfunctions. While well described, the pathophysiology of these sexual dysfunctions has not
been well studied. Sexual dysfunction in
chronic prostatitis adds to the number of
positive symptom phenotypes and correlates
therefore with increasing symptom scores in
patients with chronic prostatitis syndromes.
Prospective interventional studies on the role
of sexual dysfunctions are however missing.
Endocrinological factors might interact with
the inflammatory regulation in the prostate.
Hormones have been found to alterate the
inflammatory response via different receptors.
Conclusion Andrological implications are
heterogenous and frequently described in
patients with chronic prostatitis syndrome.
Usually andrological factors have not been
addressed as primary variables in the different studies. Further research in interventional studies is therefore needed.
82
HMGB1 Modulates Immune Responses in a Cell-Specific Manner
in the Rat Autoimmune Orchitis
F. Aslani1, A. Meinhardt1, G. Schuler2, H.-C. Schuppe3,
S. Bhushan1, M. Fijak1
1Anatomy and Cell Biology; 2Clinic for Obstetrics, Gynecology and Andrology of Large and Small Animals;
3Department of Urology, Pediatric Urology and Andrology, Justus-Liebig-University Giessen, Germany
Introduction High mobility group box protein 1 (HMGB1) is a nucleosomal protein.
Under inflammatory conditions HMGB1 is
secreted from activated immune cells or released from necrotic cells and acts as an endogenous danger signal. Despite its immune
privileged status, testis is prone to inflammatory infertility. In this study we analyzed the
role of HMGB1 in mediating autoimmune
responses in experimental autoimmune orchitis (EAO) – a rodent model of chronic testicular inflammation.
Materials & Methods EAO was induced in
WKY rats by immunization with testicular
homogenate in complete Freund’s adjuvant.
HMGB1 localization in testis was analyzed
by immunofluorescence staining. Isolated
346
J Reproduktionsmed Endokrinol 2012; 9 (5)
testicular macrophages (TM), Sertoli cells
(SC) and peritubular cells (PTC) were stimulated with recombinant HMGB1 and cytokine mRNA levels were measured by qRTPCR. Testosterone production was evaluated
using RIA assay in HMGB1 treated Leydig
cells (LC). Activation of NF-κB (p65),
MAPK (p38, ERK1/2) and Akt pathways
were investigated in isolated testicular somatic cells by western blot. Level of
HMGB1-TLR4 binding was investigated in
isolated testicular cells using Duolink PLA
assay.
Results EAO testes showed translocation of
HMGB1 from the nucleus into the cytoplasm. Concentrations of IL-6 and TNF-α
were increased 50 days after first immunization in EAO testes, whilst HMGB1 levels increased 80 days post-immunization. RAGE
was highly expressed in SC as well as PTC
and to a lower level in TM. HMGB1-TLR4
binding was higher in TM than in PTC ans
SC. HMGB1 activated phosphorylation of
p38 and p65 in TM. However, HMGB1
treated PTC and SC activated ERK1/2.
HMGB1 induced an increase in mRNA expression of TNF-α and IL-6 in TM. HMGB1
induced a significant increase in testosterone
production by LC.
Conclusions Under chronic inflammatory
conditions HMGB1 is released into the testicular extracellular milieu. In contrast to IL6 and TNF-α, an increase in HMGB1 levels
in testis was observed only at later stages of
the disease. Late phase of action makes
HMGB1 an interesting therapeutic target as
orchitis is asymptomic at earlier stages. We
propose that the effect of released HMGB1
on different testicular somatic cells is mediated via their individual receptor expression
profiles. HMGB1-RAGE binding in SC,
PTC and presumably LC can induce local
tolerance due to ERK1/2 and subsequently
autophagy activation and increased testosterone production. However, HMGB1
binding to TLR4 promotes inflammation by
inducing secretion of proinflammatory
cytokines such as TNF-α and IL-6 which
triggers chronic inflammatory responses at
later stages of EAO which aids in the pathogenesis of autoimmune orchitis.
83
Protective Effect of Probiotic Lactobacilli against Sperm Damage
exerted by Soluble Factors from
Escherichia coli: Focus on Lipopolysaccharide
A. Barbonetti1, 2, M. R. C. Vassallo1, B. Cinque3,
P. Mastromarino4, A. De Mutis1, S. Filipponi1,
S. Francavilla1, F. Francavilla1
1Andrology Unit, University of L’Aquila; 2Centre for
Clinical Research, San Raffaele Sulmona; 3Experimental Medicine, University of L’Aquila; 4Institute of
Microbiology, University “La Sapienza”, Rome, Italy
Introduction Unidentified soluble factors
secreted by E. coli have been reported to inhibit mitochondrial membrane potential
(ΔΨm), motility and vitality of human sper-
matozoa. In this study we investigated
whether the endotoxin lipopolysaccharide
(LPS) released by Gram-negative bacteria
could account for these effects, as LPS receptor, Toll-like receptor4 (TLR4) has been
recently identified in human sperms. Furthermore, as strains of lactobacilli have been
reported to produce soluble factors interfering with TLR4 signalling, we also investigated whether a mix of 3 selected strains of
vaginal lactobacilli (L. brevis CD2, L. salivarius FV2, and L. plantarum FV9) could
exert protective effects.
Material & Methods Sperm motility was
evaluated with CASA and sperm vitality
with the eosin exclusion staining under light
microscope. Sperm ΔΨm was assessed at
flow cytometry with JC-1, which emits red
or green fluorescence when ΔΨm is high or
low, respectively. In order to avoid direct
contact between motile sperms and bacteria,
coincubations were carried out in a Transwell system, where two independent compartments are delimited by a 0.4 mm pore
membrane.
Results When compared to untreated
samples, sperm suspensions coincubated for
1 h with E. coli (1.5 × 106 CFU/mL), exhibited dramatically lower percentages of viable
spermatozoa (19.6 ± 3.2% vs 70.4 ± 11.4%,
p = 0.007), with consequent drop in motile
sperms (1.2 ± 1.2% vs 63.6 ± 10.8%; p =
0.0004) and sperm ΔΨm. All these effects
were completely prevented by the concomitant addition of the probiotic mix (1 ×108
CFU/ml), while no preventive effects was
observed using UV-inactivated lactobacilli.
Sperm exposure to LPS (100 ng/ml) inhibited ΔΨm, as indicated by the decrease in
sperm % emitting red JC-1 fluorescence
(47.4 ± 6.2% vs 75.7 ± 2.9%, p = 0.02),
throughout 6 h incubation, without affecting
sperm motility and vitality. The LPS-induced ΔΨm inhibition was also prevented by
probiotics.
Conclusions LPS cannot account for the
adverse early effects exerted by soluble
products of E. coli on sperm motility and viability. The protective effect of probiotic lactobacilli against the loss of motility/vitality
exerted by soluble factors from Escherichia
coli is not related to a possible competition
for LPS binding to TLR4. Mechanisms of
this dramatic protective effect, remain to be
elucidated.
 ESU Course 4: Obstruction
of the Seminal Pathways
84
Ultrasonographic Determination
of Caput Epididymidis Diameter is
Strongly Predictive of Obstruction
in the Genital Tract in Azoospermic
Men with Normal Serum FSH
A. Pezzella1, A. Barbonetti1, A. Micillo1, S. D’Andrea1,
S. Necozione2, F. Francavilla1, S. Francavilla1
1EAA Centre of Clinical Andrology; 2Centre of Epidemiology, University of L’Aquila, Italy
Introduction The relationship between epididymidis ultrasonography (US) and infertility is poorly defined probably due to lack of
objective and reproducible criteria of US
evaluation.
Materials & Methods Here we evaluated
US size of testes, caput and of corpus epididymidis in infertile men: 165 with total
sperm count ≥ 39 × 106, 187 with total sperm
count 6 and 75 azoospermic men. Blood levels of FSH and of total testosterone were also
evaluated. US measures obtained using a
high-frequency (12 MHz) linear array transducer, included the mean value of bilateral
testicular volumes (mL) (Testes-M), of bilateral longitudinal diameter of caput
epididymidis (mm) (Caput-M), and of the
bilateral antero-posterior diameter of the
corpus measured on a longitudinal scan (mm)
(Corpus-M). Testicular histology of azoospermic men was obtained and the percentage of seminiferous tubules with elongated
spermatids (%T) was used to classify cases
with normal spermatogenesis (obstructive
azoospermia) (n = 17; %T ≥ 80), or with deranged spermatogenesis (n = 58; %T ≤ 33).
Results Caput-M was correlated with Testes-M (p = 0.0003; r = 0.17) and with FSH
serum levels (p = 0.024; r = –0.14), but not
with semen parameters. Caput-M but not
Corpus-M values resulted greater in obstructive azoospermia compared to other groups
but difference was not significant. Cut-off
values of Testes-M, Caput-M and of FSH
correctly classified cases of obstructive
azoospermia (AUC > 0.5). A patient with
FSH ≥ 7.8 UI/mL, which represented the cutoff value with the highest combination of
sensitivity (100%, CI 76.8–100%), and
specificity (84.9%, CI: 72.4–93.3%), had no
probability of being affected by obstructive
azoospermia, while a patient with FSH < 7.8
UI/mL only had 63.6% (CI: 40.1–83.2%)
probability of being affected by obstructive
azoospermia. US Caput-M ≥ 10.85 mm,
which represented the cut-off value with the
highest combination of sensitivity (58.8%,
CI: 32.9–81.6%) and specificity (91.4%,
CI: 81–97.1%) applied in cases with FSH
< 7.8 UI/mL, increased the probability for
obstructive azoospermia from 63.6% up to
92.3% (CI: 76.5–98.8%).
Conclusions The US caput epididymidis
diameter determination represents a new
valuable step in the evaluation of the infertile
Figure 3. A. Pezzella et al. Longitudinal ultrasonographic image of caput epididymidis appearing as a pyramidal structure above the upper pole of the testis.
The maximal diameter is measured from the top to the
base of the pyramid (line).
Figure 4. A. Pezella et al. The maximal antero-posterior diameter of the corpus is measured at its middle
portion on a longitudinal scan (line).
man, mostly in case of azoospermia and normal level of serum FSH. On the contrary it
has not provided any relevant information in
non-azoospermic men (Fig. 3, 4).
Supported by MIUR (I), PRIN 2009.
85
Vasoscopy – A new Diagnostic
and Therapeutic Tool in
Andrology?
M. Trottmann1, H. Schaaf2, B. Liedl3, C. G. Stief1,
M. Graw4, C. Braun4, S. Koelle1
1Urology,University of Munich; 2PolyDiagnost GmbH,
Pfaffenhofen; 3Clinics for Surgery, Munich-Bogenhausen, Munich; 4Department of Forensic Medicine,
University of Munich, Germany
Introduction Micro-Endoscopy has been
performed in the bile ducts, in the breast
ducts and in the nasolacrimal ducts. Up to
now, the endoscopy of the vas deferens has
not yet been performed successfully because
of the small lumen (1.24 mm) and the narrow
internal inguinal ring. Therefore the aim of
our study was to successfully perform vasoscopy using a new prototype of a micro-endoscope.
Material & Methods In a pre-clinical randomized study first the vasa deferentes of
transsexual men were investigated ex vivo
after surgery. In a second step the vasa deferentes of men within 24–48 hours after
death were investigated in situ conditions. A
semi-rigid micro-endoscope of 0.6 mm outer
diameter (covered with Nitinol and with the
possibility of insertion of 0.4 mm tools) with
integrated fiberoptic (0.9 mm, 10000 pixels)
and a depth of field from 3–20 mm was used.
Results Antegrade and retrograde views of
the inner lumen of the vasdeferenswere
achieved. Using a working channel a biopsy
forceps and a laser fiber could be introduced
into the inner lumen allowing to obtain probe
material and to close or open the lumen by
coagulation and vaporization, respectively.
Conclusions Vasoscopy might be used as a
valuable tool for the assessment of a site-specific ejaculatory function (e. g. in varicocele
patients), for sperm revovery in case of
ejaculatory dysfunction by washout (e. g. in
patients with spinal cord injuries) or for
treatment of obstructive azoospermia (e. g.
by application of a laser or by dilatation).
Furthermore vasoscopy for the first time enables to obtain material for histological and
microbiological investigations or to directly
apply drugs for therapy.
86
Seminal Plasma Biomarkers and
Congenital Bilateral Absence of
the Vas Deferens: Relationships
with the Anatomical Urogenital
Phenotypes and Place in the
Diagnostic Strategy
C.Teston, M. Walschaerts, M. Daudin, N. Moinard,
L. Bujan, R. Mieusset, S. Hamdi
Chu Toulouse – Hôpital Paule de Viguier, EA3694
Human Fertility Research Group, Toulouse, France
Introduction The clinical diagnostic of the
congenital bilateral absence of the vas deferens (CBAVD) is critical since it implies a
specific support for the infertile couples including a genetic counseling. However this
diagnostic is puzzled by the wide spectrum
of phenotypes and involves a complex combination of clinical, ultrasonographic, biological and genetic investigations. Various
anatomical abnormalities of the accessory
glands have been reported in CBAVD patients suggesting that biochemical markers
of the seminal plasma should have a high
contributive value. However, the relationship between seminal plasma biomarkers
and the anatomical urogenital phenotypes of
CBAVD has been scarcely addressed in the
andrological literature.
Material & Methods 82 male patients with
azoospermia for whom definitive diagnostic
of CBAVD was assessed by scrotal and
transrectal ultrasonography were retrospectively selected. According to their urogenital
anatomy, patients were divided into three
groups: complete absence of both vas deferens (G1, n = 36), partial absence of both (G2,
n = 28) and complete/partial absence (G3,
n = 18). For each patient, clinical and ultrasonographic data, sperm analysis results
were recorded. 9 biochemical markers were
assayed: citrate and zinc (prostate), fructose,
choline and total proteins (seminal vesicles),
total carnitine, acylcarnitine, alpha-glucosidase and glycerophosphocholine (epididymidis). For each group, numerical data were
reported as mean, median, standard deviation, 5th and 95th percentiles.
Results For G1, G2 and G3 patients and
according to WHO procedures, median
sperm volume and semen pH were below the
J Reproduktionsmed Endokrinol 2012; 9 (5)
347
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
reference ranges (respectively 0.77, 1.14 and
1.04 mL for volume; 6.8, 7.1 and 6.9 for pH).
However, despite a CBAVD with azoospermia, 25 patients (34%) presented a normal
pH and/or volume. Strikingly, normal pH
and volume could be found despite a bilateral absence of seminal vesicles. For the
three groups, total concentrations of epididymal and seminal vesicles markers were very
low but prostatic markers remained within the
normal ranges. Interestingly, total amounts
of fructose were below < 13 µmol/ejaculate
in 94% of G1, 85% of G2 and 100% of G3
patients.
Conclusion Whatever the anatomical urogenital phenotype of CBAVD, total amount
of epididymal and seminal vesicles biomarkers in ejaculates are very low. Thus, assessment of biochemical markers should be an
imperative first-line investigation for azoospermia.
87
Male Infertility – a rare Complex
Case of Abnormal Development
of the Seminal Pathways
R. Amorim, J. Dias, P. Espiridião, R. Freitas, V. Oliveira,
L. Ferraz
Centro Hospitalar VIla Nova de Gaia/Espinho, Urology,
Vila Nova de Gaia, Portugal
Vas deferens agenesy can be uni- or bilateral
and in this case is frequently linked to Cystic
Fibrosis. When there is also aplasia/agenesy
of the seminal vesicle(s), we are probably
facing abnormal embryologic development
of the Wolff structures, implying imagiologic study of renal system.
We present a case report of a 34 year old
male with primary infertility, having severe
male factor (azoospermia). The 35 year old
female had no gynecologic abnormality.
Physical examination showed left side palpable vas deferens and impalpable on the
right, with normal volume testicles. The
ejaculate confirmed azoospermia, low volume (0.5 mL) and low pH (6.8). The FSH,
LH and testosterone levels were normal.
Karyotype and Y chromosome microdeletions showed no abnormalities. Cystic fibrosis transmembrane conductance regulator
(CFTR) gene mutation testing was negative.
The transrectal ultrasonography (TRUS)
showed right seminal vesicle absence and
left seminal vesicle enlargment. Pelvic magnetic ressonance imaging (MRI) confirmed
right seminal vesicle absence.
Suspecting malformation of the Wolf duct
resultants we performed a abdominal ultrasound (US) that demonstrated right renal
agenesy.
The sperm count evaluation guided us to a
disgnostic hypothesis of ejaculatory duct obstruction so we performed a vesiculography
under general anesthesia, in order to proceed
to transurethral ejaculatory duct ressection.
The aspiration of the left seminal vesicle
showed no spermatozoa and vesiculography
test showed normal left ejaculatory duct. The
348
J Reproduktionsmed Endokrinol 2012; 9 (5)
Figure 5. R. Amorim et al.
Figure 6. R. Amorim et al.
anterograde deferentography showed a 3 cm
length left vas deferens ending outside inguinal canal. We explored the left vas deferens and confirmed its blunt ending (histological exam with inspecific changes).
Diagnostic Testicular Sperm Aspiration
(TESA) retrieved intact spermatozoa and the
couple was oriented to medical assisted reproduction procedures (ICSI).
Our case report illustrates the variability of
embryologic changes regarding internal
genital system and the relation with the development of renal system (insults before the
7th gestational week).
In conclusion the observation of an azoospermic male must include a complete medical history and physical examination in order
to seek for obstructive causes. When several
wolffian structures are absence the renal system should be evaluated (Fig. 5, 6).
 ECA Session 7: Normal
and Abnormal Development of the Male Reproductive Tract
88
Cryptorchidism – Clinical perspective
O. Söder
Department of Women’s and Children’s Health,
Astrid Lindgren Children’s Hospital, Karolinska Institute University Hospital, Stockholm, Sweden
Introduction Cryptorchidism, i. e., incomplete descent of one or both testicles into the
scrotum at birth, is the most common abnormality in newborn boys. In European coun-
tries this disorder affects 3–5% of all boys,
although there are considerable regional differences. Spontaneous descent occur in most
cases but a substantial number (~1%) remains unilaterally or bilaterally cryptorchid
after 3 months of age. Since undescended
testis has been associated with infertility and
testis cancer in young adult life it has been
important to develop optimal treatment to
prevent future infertility and possibly also
testis cancer. This presentation reviews recent developments in the management and
treatment of cryptorchidism, focusing on
testicular function.
Material & Methods Presented data are
from the literature and from a Swedish ongoing randomized controlled study comparing
the outcome of surgery for cryptorchidism
performed at 9 months and 36 months of age,
with follow-up of testicular and endocrine
parameters. Ultrasonography and ruler measurements were used to determine testicular
volume. Testicular biopsies (> 200) taken at
orchidopexy were investigated morphometrically. Reproductive hormones were also
analyzed.
Results revious studies have indicated that
surgical treatment of cryptorchidism should
be recommended in most cases rather than
hormonal stimulation therapy. Orchidopexy
at younger age is associated with a more favorable outcome than later treatment. In the
ongoing study, a significant depletion of somatic cells and germ cells was found at 3
years compared with 9 months in cryptorchid
testes, and the testicular volume was also
smaller. There was good correlation between
testicular volume and testicular cell counts.
Endocrine analyses did not correlate with
testicular morphometry at any of the investigated ages.
Conclusions Curative treatment of cryptorchidism should be offered at an early age,
preferably before 1 year of age, to prevent
degenerative changes of the affected testis.
Surgical rather than hormonal treatment is to
be recommended. Testicular volume is a
good proxy for testicular cell numbers, reflecting both somatic and germ cell counts.
Reproductive hormones do not reflect cellular parameters of the cryptorchid testis, nor
the tendency to spontaneous descent.
89
Delayed Puberty
N. Pitteloud
CHUV, Chief of Endocrinology, Diabetes, & Metabolism Service, Head of Pediatric Endocrinology,
Lausanne, Switzerland
Puberty in humans is a remarkable postnatal
developmental process marked by accelerated skeletal growth, the acquisition of secondary sexual characteristics, and psychosocial changes that culminates in reproductive
capacity. Both clinicians and scientists have
long been intrigued by puberty, yet the
mechanisms regulating it remain largely unknown. Initiation of puberty occurs with the
secretion of pulsatile gonadotropin-releasing
hormone (GnRH) by a specialized network
of hypothalamic neurons. As such, human
disease models of GnRH dysregulation in
which the timing of pubertal onset is altered
have provided valuable insight into this fundamental biological problem. This lecture
will provide an overview of the clinical presentation of delayed puberty in the male, the
genetic basis of delayed puberty focusing on
the most severe cases of congenital GnRH
deficiency, and the use of whole-exome sequencing in gene discovery efforts as well as
the impact these developments may have on
our understanding of delayed puberty.
 ECA Session 8: Testicular
Cancer
90
What’s New in the Pathogenesis
of Testicular Cancer?
L. Looijenga
Erasmus MC, Department of Pathology, Rotterdam,
Netherlands
Human germ cell tumors are a heterogeneous
group of neoplasms, in which five entities
are recognized based on patho-biological
and clinical characteristics. Within the testis,
the Type I (teratomas and yolk sac tumors),
Type II (seminomas and nonseminomas) and
Type III (spermatocytic seminomas) can be
identified. These have their specific chromosomal constitution, expression profile, both
on mRNA, miRNA and protein level. These
data are informative from a diagnostic point
of view. The rare type III germ cell tumors
originate from a spermatogonia/spermatocyte. They are characterized by gain of chromosome 9 and expression of DMRT1. In
contrast, the type II germ cell tumors origi-
nate from a primordial germ cell/gonocyte,
and show gain of the short arm of chromosome 12p upon invasive growth. OCT3/4,
NANOG are absolute markers for the diagnosis of the precursor lesion (carcinoma in
situ). In addition, these markers are also
positive in seminoma and embryonal carcinoma. In contrast, CIS and seminoma are
positive for the transcription factor SOX17
and embryomal carcinoma for SOX2. This
allows a defined set of diagnostic markers.
Besides immunohistochemistry, these can be
visualized using the quantitative Tagman
Protein Assay (TPA), based on PCR-amplification. In addition, c-KIT and KITLG
SCF) are found to be of value for diagnosis
of the earliest stage of malignant germ cells.
This is of particular interest in the context of
recent Genome Wide Association studies
(GWAS) results. The different types of germ
cell tumors, in addition, show a specific pattern of mRNA and miRNA expression. Especially the pattern of miRNAs is of interest
because of its impact in biology in general,
and of the germ cell lineage specifically.
miRNAs related to embryonic stem cells,
i. e. 371-3 and 302 clusters, are indeed
highly expressed in the CIS/seminoma/embryonal components, found to be intrinsically related to their phenotype and behavior. The consistent expression pattern initiated investigation of the value of these
miRNA to be used as serum markers in these
patients, both in the context of primary diagnosis and follow-up. An update of the results
will be presented.
91
Non-Invasive Diagnosis of Testicular Carcinoma in situ in Ejaculates
– Perspectives in Relation to Current Routine Methods
K. Almstrup1, G. Gundgaard2, G. Daugaard2,
N. E. Skakkebæk1, E. Rajpert-De Meyts1
1
University Department of Growth and Reproduction
GR-5064, 2Department of Oncology, Rigshospitalet,
Copenhagen, Denmark
Testicular cancer (TC) is usually diagnosed
due to an overt tumor. Tumor formation is
preceded by a pre-invasive and asymptomatic stage, carcinoma in situ (CIS) testis, except for very rare subtypes. The CIS cells are
located within seminiferous tubules but can
be exfoliated and detected in ejaculates with
specific CIS markers.
We have built a high throughput framework
involving automated immunocytochemical
staining, scanning microscopy and in silico
image analysis allowing automated detection
and grading of CIS-like stained objects in
semen samples [1]. Investigation of semen
samples from subfertile men with a contralateral testicular biopsy performed during
clinical work-up revealed a test sensitivity of
0.67 and a specificity of 0.98. In addition,
ejaculates from patients with clinical signs of
an overt TC were investigated and yielded a
slightly lower sensitivity, possibly due to
obstruction.
Current golden standard for identification of
CIS is a testicular biopsy, but it is performed
routinely only in few countries. Despite its
high sensitivity, a biopsy also occasionally
yields false negative results. The semen test
may hence substitute the biopsy in those centres where this invasive procedure is not performed. Among subfertile men and men with
a history of cryptorchidism, who are at
higher risk of developing TC, the semen test
represent an attractive TC screeining solution. However, currently the test represents a
substantial added workload to a standard semen analysis, which may only be feasible for
large centres to handle.
Reference:
1. Almstrup K, et al. Screening of subfertile men
for testicular carcinoma in situ by an automated
image analysis-based cytological test of the
ejaculate. Int J Androl 2011; 34: e21–e31.
92
Long-term Follow-up using Testicular Sparing Surgery for Leydig
Cell Tumor
G. Bozzini1, S. Picozzi1, F. Gadda2, R. Colombo3,
O. DeCobelli4, G. Pizzocaro5, J. Palou6, L. Carmignani1
1Academic Department of Urology, IRCCS Policlinico
San Donato; 2Department of Urology, Policlinico di
Milano; 3Department of Urology, Ospedale San
Raffaele; 4Department of Urology, IEO; 5Department
of Urology, Istituto Naz. Tumori, Milan, Italy; 6Department of Urology, Fundacio Puigvert, Barcelona, Spain
Purpose We performed a long-term evalua-
tion of conservative surgical treatment of benign Leydig cell tumor.
Material & Methods A multicentre retrospective clinical study was performed at 6
European centres. Case files of all patients
diagnosed with Leydig cell tumor and
treated with conservative surgery were examined. Patients underwent physical examination, hormone and tumor marker assays,
scrotal and abdominal ultrasound, chest
x-ray and endocrinological examination.
Results From 1987 to 2006, 22 patients with
Leydig cell tumor underwent conservative
surgery. Patient mean age was 35 years
(range 5–61). Mean follow-up was 179.78
months (range 77–290). No local recurrence
or metastasis was observed. Patients presented either with a palpable testicular nodule (3 patients, 13.7%) or a nodule diagnosed
by ultrasound (15 patients, 68.2%), gynecomastia (2 patients, 9.1%), precocious pseudopuberty (1 patient, 4.5%) or scrotal pain
(1 patient, 4.5%). Diagnosis after frozen section examination was Leydig cell tumor in
20 of 22 cases (91%). Mean histological size
of the nodule was 1.11 cm. Follow-up was
conducted for all patients every 3 to 6
months with physical examination, tumor
markers, scrotal and abdominal ultrasound,
chest x-ray. All patients underwent CT scan.
No local recurrence or metastasis were observed. 100% of patients are still alive with a
100% free disease survival.
Conclusions When diagnosed early Leydig
cell tumors present a favorable follow-up
even its potential metastatic behaviour. In
J Reproduktionsmed Endokrinol 2012; 9 (5)
349
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
these cases sparing surgery proved to be a
feasible and safe choice and could be regarded as the first line therapy.
93
Is Preservation of Dysgenetic Gonads Until Adulthood Justified?
J. Slowikowska-Hilczer1, M. Szarras-Czapnik2,
J. K. Wolski3, L. Jakubowski4, E. Oszukowska1,
K. Marchlewska1, R. Walczak-Jedrzejowska1,
E. Filipiak1, K. Kula1
1Deptartment of Andrology and Reproductive Endocrinology, Medical University of Lodz; 2Department of
Endocrinology and Diabetology, Children’s Memorial
Health Institute, Warsaw; 3Urology-Oncology Department, Maria Sklodowska-Curie Memorial Cancer
Centre, Warsaw; 4Department of Genetics Institute
CZMP, Lodz, Poland
In patients with Y chromosome and ambiguous genitalia disorder of sex development
(DSD) is recognised in childhood. Usually
streak gonads are resected, while dysgenetic
testes preserved. In patients with female external sex organs DSD is recognised considerably later, during the period of expected puberty. The aim of our study was to evaluate
adult or pubertal patients with gonadal dysgenesis and answer a question if preservation
of dysgenetic testes is a correct procedure.
We evaluated 42 patients with gonadal dysgenesis (GD), aged 15–46 years, with 46,XY
(78,6% of cases), 45,X/46,XY, 45,X/47,XXY,
45,X/47,XYY or 45,X/marY karyotype. Serum levels of FSH, LH and testosterone were
determined. Ultrasonography of gonads was
performed. Preserved gonads were biopsied
or removed. In total 83 gonads were histologically evaluated, including immunohistochemical reaction with monoclonal antibodies against placental like alkaline phosphatase (PLAP), a marker of neoplastic germ
cells. Morphometry of testicular structures
was achieved with the use of image analysis
software.
In all patients serum FSH level was increased above 10 IU/L (mean 63.7 ± 38.3 IU/
L) and volume of gonads diminished (5.1 ±
3.9 nmol/L), LH increased above 10 IU/L
(22.1 ± 12.7 IU/L) and they had clinical
symptoms of hypogonadism. Streak gonads
on both sides (pure GD) were recognised in
54,8% of cases, a streak gonad on one side
and an underdeveloped testis on the other
(mixed GD) in 26.7% and underdeveloped
testicular structure on both sides (partial GD)
in 18.6%. Germ cell neoplasia was found in
30.1% of gonads. Among them overt germ
cell tumors were revealed in 10.8% of cases.
In gonads with testicular structure intratubular germ cell neoplasia predominated
(47.2%), while in the streak gonads gonadoblastoma (26.7%) was the most frequent. In
one case spermatozoa were found, in one
spermatogenesis was arrested at pachytene
spermatocytes level and in another one at the
level of spermatogonia. Sertoli cell only syndrome was found in 5 gonads with testicular
structure (26.3%) and in one gonad seminiferous tubules were totally degenerated. Testicular structure revealed features of poor or-
350
J Reproduktionsmed Endokrinol 2012; 9 (5)
ganogenesis: diminished tubular diameter,
increased thickness of tubular membrane and
increased intertubular spaces.
In conclusion, dysgenetic gonads preserved
until adulthood have poor growth and minimal probability to produce complete spermatogenesis. In turn they exhibit high risk of
germ cell neoplasia. They have also poor hormonal activity, thus most of patients develop
hypergonadotropic hypogonadism and need
supplementation with testosterone. Because
of these resection of dysgenetic gonads is recommended as soon as diagnosis is available.
 ESU Course 5: Vasectomy
and Sperm Retrieval
94
Sperm Retrieval General Considerations
S. Minhas
Urology Department, University College London Hospitals, London, UK
This lecture will cover general considerations prior to the techniques of sperm retrieval used for both non-obstructive and obstructive azoospermia. In particular it will
focus on the investigation and pre-operative
management of patients with azoospermia.
The causes of azoospermia include both obstructive and non-obstructive causes and the
management pathways are different.
A number of non-invasive techniques are
used for treatment of non-obstructive and
obstructive azoospermia or alternatively reconstructive procedures can be undertaken
after counselling of the patient.
In non-obstructive azoospermia the gold
standard of treatment is sperm retrieval in the
form of microdissection sperm retrieval, although this still remains controversial.
Prior to treatment patients should undergo
full evaluation including both hormonal assay, ultrasound imaging combined with genetic profiling. There are a number of important genetic causes of both obstructive and
non-obstructive azoospermia.
The role of hormonal manipulation in men
with non-obstructive azoospermia prior to
biopsy will also be discussed.
95
Results of a Combined Trifocal
TESE plus M-TESE in a Series of 75
“Low Chance” Non-Obstructive
Azoospermia (NOA) Patients: Experience from 2 Centres
M. Marconi1, M. Bergmann2, T. Diemer2, W. Weidner2
1Clinica IVI, Andrology Unit, Santiago, Chile; 2Department of Urology, Pediatric Urology and Andrology,
Justus-Liebig-University Giessen, Germany
Background There is still no agreement re-
garding which is the best surgical technique
for Testicular Sperm Extraction (TESE) in
patients with “low chance” NOA.
Objective To report the surgical sperm re-
trieval rates and spermatogenic scores in a
two centre study (Santiagao, Giessen) of 75
“low chance” NOA patients (testicular volume < 8 ml, FSH > 12.4 IU/ml) using a trifocal TESE (biopsy in upper, medial and lower
pole) plus Microscope assisted TESE (MTESE) in a middle extended incision [Marconi
et al, European Urology, 2012].
Patients & Methods 75 patients with “low
chance” NOA were prospectively recruited
for the study. All patients underwent Trifocal plus M-TESE bilaterally (three biopsies
per side) (e. g. Technique Presented As Video
Sequence). Success was defined as the presence of at least one elongated spermatid that
could be used for an ICSI procedure in the
retrieved tissue. We report the surgical
sperm retrieval success rates and compare
the spermatogenic scores between the different biopsy sites.
Results Using the combined TESE + MTESE approach sperm were retrieved in 48
patients (64%). A significant (p = 0.04) difference was observed between the different
areas of the testis regarding spermatogenic
scores (quantity of elongated spermatids retrieved), confirming the patchy distribution
of spermatogenesis in the testis of patients
with NOA. In the follow-up no serious complications were observed (i.e. testicular infarction), 2 patients needed additional testosterone supplementation therapy 6 months
after surgery.
Conclusions Combined trifocal TESE + MTESE is an efficient surgical technique for
sperm retrieval in patients with “low chance”
NOA. This may be explained by the heterogeneous distribution of spermatogenesis in
patients with NOA and by the advantage that
the microscopic approach offers for this subgroup of patients with a bad prognosis. The
transfer of the technique to a different centre
after training the surgeon has been realized
providing high retrieval success rates without severe complications.
96
Multimodal MRI of the Testes for
Characterization of Intact Spermatogenesis in Non-Obstructive
Azoospermia: A Pilot Study for
Establishing Functional MRI of
the Testes
S. Irrle1, N. Scislak1, B. Dassinger1, A. Pilatz2,
B. Altinkilic2, G. A. Krombach1, M. Kampschulte1,
W. Weidner2
1Diagnostische und Interventionelle Radiologie;
2
Urologie, Kinderurologie und Andrologie, JustusLiebig-University Giessen, Germany
Introduction Non-Obstructive Azoospermia
(NOA) is encountered in 10% of infertile
males. TESE for sperm retrieval is the golden
standard for therapy. Unfortunately, there
are no preoperative parameters to predict
successful or not successful sperm retrieval
in the individual case. The goal of this study
was to develop a functional MR imaging
protocol for characterization of the testes to
provide hints for areas of intact spermatogenesis.
Material & Methods MRI was performed at
a 3 T scanner. In 5 subjects within 7 sessions
the imaging protocol was developed. Morphology was assessed by a T2 turbo Spin-Echo
sequence (TR/TE 4000/101ms, FA 150°,
slice thickness 3 mm, FOV 20 × 20 cm2, matrix 310 × 320, coronal and transversal).
Spectroscopy was obtained with a single
voxel spin echo sequence (voxel size = 12 ×
12 × 12mm3, TE 30 and 135ms, NSA 80/128)
and evaluated at an offline workstation. Diffusion weighted imaging was performed with
EPI: b-values 0, 100 and 800 s/mm2, ADCmap, TR/TE 4500/93ms, slice thickness
3,6 mm, FOV 22 × 26 cm2, matrix 160 × 102.
Perfusion of the testes was assessed after application of 0.05 mmol Gd-BOPTA/kg body
weight, by a T1 3D gradient echo sequence
(75 dynamics, interval 4.3 sec, TR/TE 4.8/
1.9 ms, FA 12°, slice thickness 3.6 mm, FOV
26 × 26 cm2, matrix 192 × 130). After the
protocol was established, until now 4 patients with NOA (mean age 34 years) and 2
additional patients were investigated.
Results Image quality was good in all cases.
The testes were of normal size in the subjects
and in 3 patients. One NOA patient had atrophy. In one patient with NOA a unilateral
varicocele was detected. In a case of epididymitis there was slight enlargement and oedema.
Perfusion could be measured in all patients
and one subject. It was decreased in a patient
with trauma and unilateral in a patient suffering from inflammation. Spectroscopy revealed a mean ratio of 10.41 between choline
and creatine at TE = 30 ms and 7.93 at TE =
135 ms (n = 5). The mean ratio of ADC for a
healthy subject was 0.64 left, 0.54 right.
Conclusion T2-w imaging provides detailed
information of morphology, relevant for assessment of atrophy, scars within the parenchyma, tumors or inflammation. Diffusion
weighted imaging is a measure of extracellular free water content and cellularity of the
testes. Perfusion is a biomarker for the quality of microvasculature and blood flow in the
parenchyma. Perfusion might be decreased
in injury and structural changes of the capillary bed. Choline as a supposed indicator for
ECA – Abstracts
7th ECA-Congress – Abstracts
Figure 8. S. Irrle et al. Single voxel spectroscopy obtained with TE of 30 ms (left) and TE 135 ms (right) in the same
position.
normal spermatogenesis could be measured
and a ratio of this metabolite and creatine
was established to evaluate spermatogenesis.
Our first results demonstrate that multimodal
MRI may be a new promising non-invasive
technique for comprehensive assessment of
the testes, providing hints for normal spermatogenesis (Fig. 7, 8).
97
What Predicts the Success of
Sperm Retrieval in Adolescents
with Klinefelter’s Syndrome?
J. Rohayem, R. Bongers, C. Krallmann, M. Zitzmann,
S. Kliesch
Centrum für Reproduktionsmedizin, Klinische Andrologie, Muenster, Germany
Objectives To identify predictive factors
for the success of microsurgical testicular
sperm extraction (mTESE) or sperm retrieval in semen from adolescent patients
with Klinefelter’s syndrome.
Methods The clinical, ultrasound and laboratory data of 18 patients with Klinefelter’s
syndrome, a pubertal Tanner stage 4–5, aged
13.6–19.8 years, and who intended to undergo mTESE for sperm retrieval were analyzed with respect to factors that may influence spermatogenesis (i. e. pre-treatment with
testosterone, testicular volume, pre operative
serum levels of LH, FSH, testosterone, free
testosterone, and inhibin B). All adolescents
were asked to provide a semen sample for
analysis prior to the operation. The sperm retrieval rate was compared to a cohort of 29
adult Klinefelter patients aged 20–47 years.
Results 8/18 adolescents were able to pro-
vide semen for analysis with all but one having azoospermia. In 10/18 (56%) of the adolescents, sperm could be retrieved and cryostored for future artificial reproductive treatment. Of these, in 9 elongated spermatids
were found in the mTESE samples whilst the
remaining patient had cryptozoospermia
(> 0,1mill/ml). In the adult group, in 8/29
(28%) mTESE was successful (p = 0,055,
χ2-Test; RR for sperm retrieval [adolescents
vs adults]: 2.01 [95%-CI: 0.98–4.14]. A pretreatment with exogenous testosterone had
been performed in 4/18 patients and stopped
6 months prior to the operation. In 2 patients
this was replaced by hCG injections. Three
of the treated group had sperm retrieved by
mTESE. Neither the adolescent patient’s
ejaculate volume, nor testicular volume determined by ultrasound (median 5,5 ml in
sperm-positive vs 5ml in negative; range 2–
11 ml), nor hormones (cf. Tab. 3) were predictive of mTESE outcome.
Inhibin B was above the detection limit of
the assay (>10pg/ml) in only 5/17 patients
(29%). Medians and maxima for those with
sperm retrieved versus those that did not
were 19.3 vs 23.9 pg/ml and 24 vs 32 pg/ml.
Levels were very low when compared to
those of healthy adolescents aged 14–18
years (125–330 pg/ml).
Conclusions At an adolescent age patients
with Klinefelter’s syndrome have higher
chances to collect sperm either from semen
or by mTESE. The other parameters assessed
did not predict success. Pre-treatment with
testosterone, if stopped 6 months prior to the
operation and replaced by hCG did not affect
mTESE outcome.
Table 3. J. Rohayem et al.
Figure 7. S. Irrle et al. T-weighted turbo Spin Echo
(TSE) images (a: axial, b: coronal) and T1-weighted TSE
images (c: axial, d: coronal) obtained after intravenous
injection of contrast medium. Morphologic details are
visible, both testes enhance homogenously after injection of contrast medium.
Sperm retrieval
LH IU/1
(normal 2–10)
FSH IU/1
(normal 1–7)
T nmol/l
(normal > 12)
Free T pmol/l
(normal > 250)
Successful range
(median)
5.3–29 (9.8)
19–50 (27.8)
7.5–19.3 (9.6)
132–348 (212)
Unsuccessful range
(median)
4.8–41 (10)
15–99 (23.1)
2.8–13.7 (10.7)
59–277 (173)
J Reproduktionsmed Endokrinol 2012; 9 (5)
351
7th ECA-Congress – Abstracts
98
Outcome of Microdissection Testicular Sperm Extraction in Patients
with Non-Mosaic Klinefelter’s
Syndrome
ECA – Abstracts
1
1
1
M. A. Sadighi Gilani , M. Sabbaghian , S. J. Hosseini ,
F. Farrahi1, F. Dadkhah1, T. Modarresi1, G. Khalili2
1Department of Andrology, Reproductive Biomedicine
Research Centre, Royan Institute for Reproductive
Biomedicine; 2Department of Epidemiology and Reproductive Health, Reproductive epidemiology Research Centre, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
Introduction Klinefelter’s Syndrome (KS)
occurs in 1:500–1:1000 of male newborns
and is the commonest chromosomal cause of
non-obstructive azoospermia. The aim of
this study was to evaluate TESE-ICSI treatment in patients with non-mosaic Klinefelter
syndrome.
Material & Methods We retrospectively
evaluated the MD-TESE performance in 117
patients with classic KS referred to Royan
Institute between 2009 and 2011. The patients were divided into two groups according to MD-TESE outcome. Several factors
including patient age, level of Follicle Stimulating hormone (FSH), Luteinizing hormone
(LH) and Testosterone were compared between the two groups.
Results In 35 patients sperm was successfully retrieved. Intracytoplasmic sperm injection with cryopreserved sperm was performed
for 17 out of 35 patients and resulted in 3
clinical pregnancies. The mean age of KS patients with successful sperm retrieval of spermatozoa was significantly lower when compared with those with unsuccessful retrieval
of spermatozoa (30.2 ± 4.1 vs 34.5 ± 5.9 year,
p = 0.02). Comparison of laboratory parameters between the 2 groups showed that the
level of testosterone was significantly higher
in patients with successful sperm retrieval
(3.39 ± 2.97 vs 2.05 ± 1.26 ng/ml).
Conclusions This study of sperm recovery
and ICSI outcome in men with KS shows
that MD-TESE/ICSI is a successful intervention for the majority of men with
Klinefelter’s syndrome. Testosterone level
and age could be two important factors to
predict success of sperm retrieval.
 ECA Session 9: INYR Session – Genetics of Male
Infertility
99
Sex Chromosome Linked Genetic
Factors in Male Infertility
C. Krausz
Andrology Unit, Department of Clinical Physiopathology, University of Florence, Italy
Both sex chromosomes are enriched with
genes prevalently or exclusively expressed
in the testis. While data in the literature
352
J Reproduktionsmed Endokrinol 2012; 9 (5)
clearly indicate that Y chromosome linked
CNVs removing genes affect spermatogenesis, the exact function of single AZF genes
in spermatogenesis is still unknown. The
only reported isolated mutations occurred in
the AZFa region and affect the USPY9 gene.
The phenotypic expression of the USP9Y
deletion is highly variable suggesting a relatively marginal role for this gene in spermatogenesis. Similarly, mutational screening of 7 X-linked spermatogenesis candidate
genes did not lead to the identification of
clinically relevant mutations. While mutations of the AR gene are clearly involved in
androgen resistance, they have been rarely
found in unselected infertile men. The longlasting debate on the role of CAG repeats of
the AR gene as genetic risk factor for impaired sperm production is still ongoing and
has been further questioned by the discordances of in vitro studies.
The clinically most interesting data concern
the sex chromosome-linked copy-number
variants (CNVs). CNVs are structural variations of the genome including large insertions and deletions and have been shown to
play a role in a number of complex diseases.
One of the most relevant example in medicine of a clear cut cause-effect relationship
between a CNV and a pathology are the AZF
deletions. AZF deletions are the most frequent molecular genetic causes of severe impairment of spermatogenesis. Beside these
“classic” deletions, removing entire AZF regions (from 0.8Mb to 7.7Mb), novel CNVs
inside the AZFc region and in the TSPY1 array have been also linked to spermatogenic
efficiency. Among the AZFc rearrangements, gr/gr deletion is considered a significant risk factor for oligozoospermia, whereas the role of partial AZFc duplications is
still poorly investigated. An interesting feature of the partial AZFc rearrangements and
the TSPY1 array is that their clinical effect is
largely dependent on the Y chromosome
haplogroup i.e. ethnicity. According to various meta-analyses, gr/gr deletion in Caucasians is the only proven genetic risk factor
for male infertility.
By using an X chromosome specific high
resolution array-CGH, we found an X chromosome-linked deletion burden in men with
impaired sperm production. A similar phenomenon was observed in an other study focusing on SCOS patients. These findings
raise question about genetic instability in
some infertile men with potential implications also on their general health. Our follow-up study on selected CNVs revealed a
clinically relevant deletion on Xq with a
cause-effect relationship with oligo/azoospermia. We expect that similarly to the Y
chromosome, also X-linked CNVs will turn
out to be responsible for a portion of male
infertility.
100
Potential Biomarkers of Non-Obstructive Azoospermia identified
in Gene Expression Analysis
A. Waclawska1, N. Rozwadowska1, T. Stokowy2, 3,
P. Jedrzejczak4, W. Zietkowiak5, M. Kurpisz1
1Department of Reproductive Biology and Stem Cells,
Institute of Human Genetics Pol. Acad. Sci., Poznan;
2Cancer Centre and Institute of Oncology, Nuclear
Medicine and Endocrine Oncology Department,
Gliwice; 3Institute of Automatic Control, Silesian University of Technology, Gliwice; 4Department of Gynecology, Obstetrics and Gynecological Oncology, Poznan
University of Medical Sciences, Poznan; 5Department
of Obstetrics and Gynecology, Regional Hospital,
Kalisz, Poland
Introduction Idiopathic non-obstructive azoospermia (NOA), which may be genetically based, constitute a significant number
of male infertility cases. Potential biomarkers could help to determine the stage of
spermatogenetic failure and support classic
clinical diagnosis.
Material & Methods We analyzed 31 testicular biopsy samples with Affymetrix Human Gene 1.0 ST microarrays. 27 of them
were obtained from patients with various
types of NOA and 4 with normal spermatogenesis. R/Bioconductor analysis of microarray data led us to selection of biomarkers
differentiating between subtypes of NOA
and normal testis tissue.
Set of selected genes was evaluated with
quantitative real-time PCR and validated on
an independent set of microarray samples
(data base; [Spiess et. al., Human Reprod
2007]). Validation data were obtained from
patients with azoospermia (20 samples) and
full spermatogenesis (5 samples) hybridized
on Affymetrix HGU133 Plus 2 microarrays.
Results The comparative analysis of gene
expression profiles in infertile and control
groups resulted in selection of 650 differentially expressed genes with Student’s t-test
p-value < 0.001. We successfully verified and
validated 6 of them: UBQLN3, CAPN11,
GGN, SPACA4, SPATA3 and FAM71F1.
All of them were down-regulated in infertile
patients group.
Additionally, global analysis of gene expression profiles shown that azoospermic patients formed two cluster subgroups. The
samples with maturation arrest at postmeiotic
stage formed one cluster and samples with
maturation arrest at premeiotic stage and
Sertoli cells only syndrome – another one.
Meiotic arrest samples could not be easily
classified to any of those groups. The comparative analysis between two cluster subgroups led to identification of 5 up-regulated
genes: WBSCR28, SPATS1, TMEM225,
FSCN3 and GSG1. All of them were verified
with qPCR and validated with independent
set of microarray samples.
Conclusions Expression of 6 biomarker
genes was significantly down-regulated in
infertile group what suggests they may be
closely related to male fertility. 5 other, upregulated genes detected in men with late
maturation arrest are proposed as spermato-
genetic failure indicators. Molecular profil
of meiotic arrest samples requires further,
more accurate genomic investigations. The
set of selected genes can be used to create the
molecular diagnostic platform to determine
degree of spermatogenic impairment of infertile men with idiopathic non-obstructive
azoospermia.
101
Human Sperm Tail Proteomics:
New Insights on Endogenous
Metabolic Pathways
A. Amaral1, J. Castillo1, J. M. Estanyol2, J. Ballescà3,
J. Ramalho-Santos4, R. Oliva1
1Human Genetics Research Group, IDIBAPS, Faculty
of Medicine; 2Proteomics Unit, Scientific Technical
Services, IDIBAPS, University of Barcelona; 3Clinic
Institute of Gynecology, Obstetrics and Neonatology,
Clinic Hospital, Barcelona, Spain; 4Centre for Neuroscience and Cell Biology, University of Coimbra,
Portugal
Introduction Although a lot have been done
in the sperm proteomics field, more detailed
descriptions are expected to clarify additional
cellular and molecular sperm attributes. The
aim of this study was to characterize the subcellular proteome of the human sperm tail,
and hopefully identify less concentrated proteins (not found in whole cell proteome studies). Specifically, we were interested in characterizing the sperm metabolic proteome and
add new insights to the sperm metabolism
issue.
Material & Methods Sperm were isolated
from normozoospermic semen samples; tail
fractions were obtained by sonication and
sucrose-gradient ultracentrifugation and
their purity was confirmed by various techniques. Isolated sperm tail peptides were
analyzed by liquid chromatography tandem
mass spectrometry (LC-MS/MS).
Results We have identified 1049 proteins,
more than half of which had not been previously described in human sperm. The categorization of proteins according to their
function revealed two main groups: proteins
related with metabolism and energy production (26%) and proteins related with sperm
tail structure and motility (11%). Interestingly, a great proportion of the metabolic
proteome (24%) were constituted by enzymes involved in lipidic metabolism, including enzymes for the mitochondrial betaoxidation of saturated and unsaturated fatty
acids, and for the utilization of ketone bodies. Unexpectedly, we have also identified
various peroxisomal proteins, some of which
known to be involved in the beta-oxidation
of very long chain fatty acids. Analysis of
our data usingReactomesuggests that both
mitochondrial and peroxisomal pathways
might indeed be active in sperm.
Conclusion The use of fatty acids as fuel
may be more preponderant in sperm than
previously thought. Notably, and contradicting a common concept in the literature, we
suggest that the male gamete may have the
capacity to obtain energy from endogenous
pools, and thus to adapt to putative exogenous fluctuations.
Supported by a grant from the “Ministerio de
Ciencia e Innovación” (BFU2009-07718) to RO
and a postdoctoral fellowship from the “Fundação
para a Ciencia e a Tecnologia” (SFRH/BPD/
63120/2009) to AA.
102
A Genome-Wide DNA Methylation
Study in Azoospermia
F. Ferfouri1, 2, M. Albert1, 2, M. Bailly1, 2, I. Ghout3,
D. Molina Gomes1, 2, R. Wainer1, 2, J. Selva1, 2,
F. Vialard1, 2, F. Boitrelle1, 2
1
Department of Reproductive Biology, Cytogenetics,
Gynecology and Obstetrics, Poissy Saint Germain
Hospital; 2University of Versailles Saint-Quentin;
3Clinical Research Department, Ambroise Paré Hospital, Boulogne, France
Introduction In infertile men, the incidence
of azoospermia is 15–20% and affects 1% of
the general male population. We can distinguish non-obstructive azoospermia (NOA)
which has been defined by the failure or dysfunction of spermatogenesis and obstructive
azoospermia (OA) which results from an obstruction at some position along the genital
tract. A “therapeutic” solution could be proposed, called testicular sperm extraction
(TESE), not systematically positive, in order
to realize an assisted reproduction techniques based on intracytoplasmic sperm injection (ICSI). Furthermore, in NOA, failure
of spermatogenesis cannot be explained, but
epigenetic alterations such as DNA methylation defects have been proposed to impact it.
Question The aim of this study was to define
DNA methylation profiles in testicular tissue
by comparing OA patients with normal spermatogenesis with NOA patients. These data
may speed progress towards understanding
the mechanism(s) that underlie NOA.
Methods This study included 94 azoospermic patients, subdivided according to biological criteria in three groups: 29 OA patients (controls); 26 NOA patients with spermatozoa retrieved by testicular sperm extraction and 39 NOA patients with no sperm retrieved after TESE. The methylation profile
was analyzed thanks to an Illumina Infinium®
Human Methylation27 BeadChip DNA methylation array (which analyses 27578 CpG
sites genome-wide, spanning 14 495 genes).
A relative M-value (log2 ratio of methylated
and unmethylated probe intensities) was defined for each CpG sites, comparing OA and
NOA patients.
Results The NOA and OA groups had significantly different DNA methylation profiles, with differences at over 9000 CpG sites
(M-value > 1). Among them, 212 CpG sites
(corresponding to 195 genes) had a relative
M-value higher than 3. These results highlighted 11 genes that were specifically expressed in testicular tissue. Patient clustering
with respect to these 212 CpG sites corresponded closely to the clinical classification
(i. e. OA vs. NOA). The DNA methylation
patterns showed that in the NOA group
(TESE+ and TESE- pooled), 78 of the 212
CpG sites undermethylated and 134 overmethylated relative to the OA group.
Conclusion The OA and NOA groups had
markedly different DNA methylation profiles. Azoospermia could be classified as OA
or NOA by considering the 212 CpG sites.
Furthermore, we identified genes that may
provide insight into the mechanism of idiopathic NOA.
103
New Insights into Sperm DNA
Methylation: Intra- and Inter Individual Stability and the Methylation Status of piRNA Genes
C. Chianese1, J. Sandoval2, S. Sayols2, H. Heyn2,
C. Giachini1, M. Esteller2, C. Krausz1
1Department of Clinical Physiopathology, University
of Florence, Italy; 2Cancer Epigenetics and Biology
Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
Introduction Human semen is peculiar for
the heterogeneity of its sperm population
presenting a number of different qualitative
features including metabolic and chromatin
differences. Whether such differences between sperm subpopulations also reflect
modifications in the DNA methylation pattern has not been addressed so far. Similarly,
the question about what we could consider as
a “normal” sperm DNA methylome and
whether it is stable among normozoospermic
individuals is still largely unexplored.
Materials & Methods 8 normozoospermic
men belonging to the upper normal range
were selected. From each individual, 3 sperm
subpopulations were analyzed: 1) whole sperm
population; 2) “up” fraction; 3) “down” fraction. The high resolution Infinium 450K methylation array was used to compare DNA
methylomes of spermatozoa and for the comparison with those of somatic and cancer
cells
Results Our study, based on the largest
number of subjects ever considered for such
a high amount of CpGs (n = 487,517), provided clear evidence for i) a highly conserved DNA methylation profile among normozoospermic men; ii) a stable sperm DNA
methylation pattern in different qualityfractioned sperm populations of the same individual. We found some major differences
between DNA methylation profiles of spermatozoa and somatic/cancer cells: i) highly
polarized sperm DNA methylation profile;
ii) association of histone-enriched hypomethylated loci with embryonic development. Then, we observed a clearly distinct
genomic and functional organization of
hypo- versus hypermethylated loci. Our
array allowed the characterization of a total
of 2,591 unique piRNAs. In spermatozoa,
we found a significantly higher proportion of
piRNA-linked CpGs within the total of hypomethylated loci compared to those found within the hypermethylated loci (p = 1.585E–05).
The preferential hypomethylation of piRNAs
was evident also in comparison with two
other cell types.
J Reproduktionsmed Endokrinol 2012; 9 (5)
353
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
Conclusions The rationale behind sperm
selection before ART is mainly related to a
predicted higher functional competency and
a higher genomic integrity of selected spermatozoa. Our finding, for the first time in the
literature, indicates sperm methylation is
stable in different quality-fractioned sperm
subpopulations of the same individual i.e.
sperm methylation is not altered in “poor”
quality spermatozoa of normozoospermic
men despite that these cells are clearly different from a metabolic and DNA integrity
point of view. In addition, we provide both
confirmatory and novel data concerning the
“normal” sperm DNA methylome, including
its peculiar features in respect to somatic and
cancer cells. Our data, with special focus on
hypomethylated piRNAs-linked genes, represents a solid basis for future basic and
clinically oriented research.
 ESU Course 6: Vasectomy,
Sperm retrieval and Spermatic Cord Denervation
104
Microsurgical Spermatic Cord
Denervation for Chronic Testicular
Pain
M. Marconi1, T. Diemer2, W. Weidner2
1Andrology Unit, Clinica IVI, Santiago, Chile; 2Department of Urology, Pediatric Urology and Andrology,
Justus-Liebig-University, Giessen, Germany
Introduction Microsurgical spermatic cord
denervation has become a consented procedure for the treatment of Chronic Testicular
Pain (CTP) in specialized centres. In previous reports success rates concerning loss of
pain range from 71% to 100%. Surgical approach can be either performed using a microscope or surgical loupes.
Objective To evaluate the results of Microsurgical Spermatic Cord Denervation
(MSCD) in patients with CTP, using either
a loupe assisted approach (magnification
3.5×) or a surgical microscope (magnification 20×).
Patients & Methods 25 patients with CTP
were prospectively enrolled in the study. In
order to be a candidate to MSCD all patients
had a positive response to a spermatic cord
block test with bupivacaine and no response
to a placebo injection (saline solution). Pain
severity was measured using an Analog Visual Pain (AVS) scale for the last 30 days
(range 0–10). 13 patients were operated using surgical loupes and 12 using a microscope (e.g. Technique Presented As Video
Sequence). Patients were controlled 1 week,
3 and 6 months after surgery symptomatically (AVS) and with a color doppler ultrasound of the testis to evaluate testicular perfusion.
Results A total of 27 testicular units were
operated. The mean duration of surgery was
70 minutes (range 50–90 minutes). No intraoperative complications were observed. No
354
J Reproduktionsmed Endokrinol 2012; 9 (5)
testicular units were lost and the color doppler
ultrasound was normal in all cases. 3 and 6
months after surgery 21 (84%) patients significantly reduced pain (AVS: median score
0, range 0–2) with no need of further oral
analgesia. 3 patients persisted with intermittent testicular discomfort (AVS: median
score 4, range 2–4) that could be managed
with on demand paracetamol. One patient
had no variation in AVS after surgery (AVS:
7). No statistically significant differences
(p > 0.05) were observed between patients
operated using loupes or microscope regarding operation time and success rate.
Conclusion Microsurgical spermatic cord
denervation is a procedure with a high success rate without severe complications. The
loupe assisted approach is comparable to the
approach using a microscope.
105
Micro-TESE Option in NOA Management
D. Palanisamy, S. E. Esteves, M. Ashraf, S. Singh
Craft Hospital, Uro Andrology, Kodungalore, India
Introduction Azoospermia, defined as the
complete absence of spermatozoa in the
ejaculate after centrifugation, is found in 1–
3% of the male population and in approximately 10% of the infertile males. Obstructive azoospermia(OA) is treated with surgical reconstruction or surgical sperm retrieval
(SSR) with excellent success rate. Treatment
of non obstructive azoospermia (NOA) on
the other hand, is yet to be standardized and
its success lags behind normal and OA
males. Microdissection TESE (micro TESE)
is been tried as an alternative method of
sperm retrieval in NOA with encouraging
results. On these lines, we introduced micro
TESE in our centre for NOA.
Materials & Methods 35 patients were recruited and had detailed clinical and endocrinological evaluation along with karyotyping
and y microdeletion testing. Micro TESE
was done with operating microscope using
up to 25× magnification and removing only
dilated tubules when they were found. Otherwise random tubules of comparatively
larger sizes were taken. Here, we are presenting SSR data with their preliminary ICSI
outcome.
Results SSR was successful in 50% of men
with retrieval of motile sperms in 58%. Average operative time was 2 hours, fertlization
rate of 65% and cleavage rate of 55% was
achieved and 48% transferable and cryopreservable embryos were seen on day 3. There
were no major complications in any of the
patient.
Conclusion Micro TESE is an effective modality of SSR in NOA men. It is associated
with qualitatively and quantitatively good
sperms available for ICSI with minimal complications. It gives a opportunity to couples
to become biological parents as it gives a
valid alternative for donor sperm or adoption
which these couples had been otherwise offered.
106
Probe-based Confocal Laser Endomicroscopy (pCLE) – a New Diagnostic Tool in Andrology
S. Koelle1, H. Stepp2, B. Liedl3, A. J. Becker1, C. Gratzke1,
C. G. Stief1, M. Trottmann1
1Urology; 2Laserforschungslabor, LIFE Centre, University of Munich;3Clinics for Surgery, Munich-Bogenhausen, Munich, Germany
Introduction Probe-based confocal laser
endomicroscopy (pCLE) allows an in vivo
and in situ histological evaluation of tissues
up to 20 µm depth. Up to now, it is used for
diagnostic purposes in gastroenterology,
pulmonology and ophthalmology. The aim
of our study was to for the first time evaluate
the use of pCLE as a diagnostic tool in
andrology. Thus, we wanted to optimize
sperm retrieval rates in patients undergoing
testicular sperm extraction (TESE) for assisted reproduction by localization of vital
spermatozoa in the testis. Additionally we
wanted to characterize testicular alterations
by pCLE.
Material & Methods In a pre-clinical randomized study the testes of transsexual men
as well as human testes removed by surgery
after diagnosis of a tumor were investigated
by pCLE using the Cellvizio® confocal microprobe ProFlex™ S1500 (Mauna Kea
Technologies, France) after incubation in
1) 0.01% fluorescein isothiocynate (FITC),
2) 5% cresyl violet solution (CV), 3) 0.01%
Fluorescein Alcon 10% (FA) and 4) 0.04%
acriflavine (AF). The images obtained were
correlated to the results of fluorescent confocal laser microscopy.
Results FITC and FA clearly marked spermatozoa, spermatocytes and spermatogonia
in the Tubuli seminiferi contorti. CV specifically marked the intercellular matrix in the
tubules, whereas AF stained the nuclei of all
cells during spermatogenesis. The endothelial
cells of vessels including capillaries of 7 mm
diameter were strongly stained thus being a
marker for vascularisation which was distinctly enhanced e.g. in embryonic carcinomas.
Conclusions Probe-based confocal laser
endomicroscopy might be used as a valuable
tool for the determination of areas in the testis with effective spermatogenesis thus enabling to optimize the positive sperm retrieval rates in TESE patients. Additionally
pCLE can provide efficient and fast in situ
information on cellular morphology and
vascularisation of testicular tumors.
107
ICSI from “fresh” TESE in Absolute
Asthenozoospermia: An Option or
the Solution?
M. Castiglioni1, B. Scarselli2, V. Zambelli2, G. M. Colpi1
1Andro-Urology and IVF Unit, San Paolo Hospital, University of Milan, Italy; 2Futura PMA, Florence, Italy
Introduction Absolute asthenozoospermia
(i. e. total sperm immotility) is rare (1:5000
men) and has a strong negative impact on
7th ECA-Congress – Abstracts
108
Is it Worth Doing Spermatozoa
Retrieval in Azoospermic NonMosaic Klinefelter’s Syndrome
Patients?
R. Amorim, L. Ferraz, J. Dias, P. Espiridião, R. Freitas,
V. Oliveira
Centro Hospitalar VIla Nova de Gaia/Espinho, Urology,
Vila Nova de Gaia, Portugal
Introduction Patients with non mosaic
Klinefelter’s Syndrome (KS) are in general
azoospermic. In many medical assisted procreation institutions these couples are oriented to reproductive procedures using donor sperm. Neverthless some testicular biopsies retrieve spermatozoa and there are published cases of unassisted pregnancies in KS
patients.
Methods Our centre experience in non mosaic azoospermic KS patients seeking for reproductive assistence was retrospectively
analyzed, from 2002 to 2011.
These patients were evaluated including
medical history, physical examination and
hormonal analysis (FSH, LH and testosterone).
We performed a TEsticular Sperm Extraction/
IntraCitoplasmatic Sperm Injection (TESE/
ICSI) in the day of the oocyte retrieval. In
those couples where it was impossible to retrieve spermatozoa we offered the possibility
of using donor sperm.
Results We performed 35 TESE. All biopsies were unilateral, accomplished under local sperm cord block, in our Medical Assisted Procreation (MAP) laboratory, allowing immediate embryologist evaluation.
The male age ranged from 25 to 38 year, all
with atrophic testis (volume under 6 mL),
high FSH and LH measurement, eleven
showing normal testosterone levels. The retrieved fragments varied from three to eight,
until the embryologist could find intact spermatozoa.
There were no complications in the TESE/
ICSI procedures. Spermatozoa were successfully retrieved in 17 patients (48.6%), some
of them taking several hours. We found the
positive results to be independent of patient’s
age and hormonal measurements and testis
volume.
Since 2004 we began doing unilateral biopsy
in order to maintain existing testicular hormonal prodution. The fertilisation rate was
35%.
All the newborn were tested for peripheral
karyotype analysis that showed no numeric
chromossomal abnormality.
Conclusions Patients with KS should be
encouraged to seek a biological paternity. A
simple surgical procedure performed under
local anesthesia can provide in this patients
the same spermatozoa retrieval rate as the
other non-obstructed azoospermic patients.
The patient must be offered an open biopsy
at the same time as the oocyte harvest since
ICSI should be done using fresh tissue.
The most important prognostic factor to the
success of the TESE was the time spent in the
procedure by the urologist and the embryologist. The normal newborn karyotype corroborates previous papers conclusion that
this disease is not passed on to the offspring.
 ECA Plenary Lecture 4:
New Horizons in Andrology
109
Genetic Models of the Future –
Making the Most of the Available
Technology
L. Smith
University of Edinburgh, MRC Centre for Reproductive
Health, The Queen’s Medical Research Institute,
Edinburgh, UK
Our understanding of the genetic basis of
male infertility has been hindered by the difficulty of identifying the responsible genes.
Genetic mapping in infertile men is more
challenging than for other clinical conditions
as these men do not have children, making
pedigree analysis problematic. Furthermore,
many cases of idiopathic male infertility
likely result from de novo mutations in individual men, or inheritance of multiple contributing loci that shift the balance from fertility to infertility. As we move towards the
era of personalised medicine, where patient
genomes can be rapidly sequenced and comparisons across populations will permit identification of underlying genetic lesions, the
development and application of genetic
models to understand the roles such genes
play in male fertility becomes ever more important; only by understanding the function
of these genes can we hope to develop effective treatments.
Over the past 20 years, the development of
knockout mice has revolutionised our understanding of the genetics underlying male reproductive development and fertility. This
has been supported by the relatively recent
development of conditional gene-targeting
where the role of specific genes can be
localised to a single cell-type, or time of development, and recent efforts using mutagenesis “phenotype-driven” screens, which
have taken models of male infertility and
used genetic mapping to identify genes underlying the infertility. Now we are moving
to a new horizon, the era of whole genome
sequencing, in vivo genome editing and gene
therapy are providing new possibilities to increase both our understanding of the genetics
underpinning male infertility, and also our
ability to treat such conditions. This presentation will describe current and emerging genetic technologies, and describe how they
can and are being used in the context of
andrology research.
J Reproduktionsmed Endokrinol 2012; 9 (5)
355
ECA – Abstracts
ICSI outcome. Il can be due either to ultrastructural genetic defects of the sperm tail, or
to necrozoospermia secondary to genital infections, oxidative stress, cryopreservation,
antisperm antibodies, metabolic disorders
affecting the ATP production, exposure to
environmental pollutants, delayed epididymal transport or long lasting sexual abstinence.
Case Report An infertile couple, where the
38-years-old female partner, previously submitted to uterine septum surgery, had regular
ovulatory cycles, and the 39-years-old male
partner, previously submitted to varicocelectomy, was usually cryptozoospermic with a
completely absent sperm motility, as documented by 4 consecutive semen analyses.
The last and best semen analysis showed a
severe oligoasthenoteratozoospermia (according WHO, 1999) (4.4 spermÍ106/ml,
100% immotile sperm, 3% normal forms and
severely low vitality [3%] by eosin-nigrosin
test). Both the testes (8 ml) were correctly
located into the scrotum, with a normal sonographic feature and no varicocele recurrence.
All reproductive hormones fell into the normal range, and neither genetic abnormalities
nor seminal tract infections could be detected. A transmission electronic microscopy (TEM) sperm analysis showed structural defects (apoptosis, immaturity and necrosis) in 100% of the sperm. The couple had
been already submitted to one ICSI cycle
with fertilisation failure (4 oocytes injected)
and, on the basis of TEM findings, three
other IVF centres discouraged them from
further ICSI attempts. An informed consent
was obtained, and an ICSI with timed testicular sperm retrieval („fresh“ TESE) the
same day of oocytes pick-up was carried out.
Very few motile sperm were retrieved from
the testis: one out of the three injected oocytes was fertilized and the embryo was
transferred. A full term pregnancy was
achieved with a healthy male baby delivery.
Discussion In case of absolute (crypto)asthenozoospermia, the results of the traditional ICSI are very poor because of the difficulty of distinguish the vital and potentially
injectable sperm among immotile ones.
Thus, several techniques have been proposed
to select immotile, but viable sperm, all of
them of unproven efficacy, or very expensive as Laser-Assisted Selection (LAISS)
and microscopy birefringence. The use of
motile sperm retrieved by TESE, in this case,
was effective and, after the signing an appropriate informed consent, may be a feasible
option, confirming previous data reported in
literature.
7th ECA-Congress – Abstracts
ECA – Abstracts
110
Sperm Chemotaxis – Throwing
Surprises
I. Weyand1, C. Brenker2, N. Goodwin2, N. D. Kashikar2,
U. B. Kaupp2, T. Strünker2
1Institute of Complex Systems (ICS-4: Zelluläre Biophysik), Forschungszentrum Jülich GmbH; 2Centre of
Advanced European Studies and Research, Department
Molecular Neuro-Sensor System, Bonn, Germany
Introduction How does a sperm find the
egg? In many species, sperm are guided by
the chemical cues provided by the egg – a
process called chemotaxis. Most of our
knowledge on sperm chemotaxis originates
from the study of marine invertebrates.
However, much less is known about chemotaxis of mammalian sperm; wherein, sperm
has to find its way through the complex
chemical milieu inside the female reproductive tract? The identity of the chemoattractants, their receptors, and the underlying signalling pathways are the subjects of debate
and intense investigation [1].
The recent discovery of sperm-specific
CatSper channels (cation channel of sperm)
[2, 3] and technical improvements in imaging and electrical recordings of sperm have
paved ways for improved understanding of
chemotaxis of mammalian sperm. CatSper
channels control the intracellular Ca2+ concentration and thereby the swimming behavior of sperm. Progesterone and prostaglandins – factors of the oviduct – directly activate human CatSper channels and stimulate
Ca2+ entry [4, 5].
Surprisingly, CatSper does even more: the
channel serves as a polymodal sensor and
thereby translates multiple chemical cues of
the female reproductive tract into a behavioral response of sperm [6]. Moreover, our
findings also show that human sperm do not
smell after all.
Material & Methods Purification of human
sperm, Ca2+ measurements, patch-clamp recordings, and cAMP-RIAs were performed
as described [5–7].
Results
– The CatSper channel is promiscuously activated by a variety of odorants: they enhance CatSper currents and stimulate
Ca2+ entry via CatSper channels.
– Odorants, as well as several other ligands
for G-protein-coupled receptors, do not
activate a cAMP-signalling pathway.
– Activation of CatSper by odorants does
not involve a metabotropic pathway.
– Analogues of cyclic nucleotides activate
human CatSper through an extracellular
site.
Conclusions Human sperm lack functional
transmembrane adenylate cyclases as well as
a signalling pathway like the one in olfactory
sensory neurons.
Intracellular rise in cyclic nucleotides fails to
activate Ca2+ channels in human sperm.
This differs from the observations in sea urchin and bovine sperm making the physiological differences between sperm of different species further evident.
356
J Reproduktionsmed Endokrinol 2012; 9 (5)
CatSper may function as a polymodal,
chemosensory Ca2+ channel that translates a
complex environment in the female reproductive tract into a behavioral response of
sperm.
References:
1. Kaupp UB, Kashikar ND, Weyand I. Mechanisms of sperm chemotaxis. Annu Rev Physiol
2008; 70: 93–117.
2. Ren D, Navarro B, Perez G, et al. A sperm ion
channel required for sperm motility and male fertility. Nature 2001; 413: 603–9.
3. Quill TA, Ren D, Clapham D, Garbers DL. A
voltage-gated ion channel expressed specifically
in spermatozoa. Proc Natl Acad Sci USA 2001;
98: 12527–31.
4. Lishko PV, Botchkina IL, Kirichok Y. Progesterone activates the principal Ca2+ channel of
human sperm. Nature 2011; 471: 387–91.
5. Strünker T, Goodwin N, Brenker C, et al. The
CatSper channel mediates progesterone-induced
Ca2+ influx in human sperm. Nature 2011: 471:
382–6.
6. Brenker C, Goodwin N, Weyand I, et al. The
CatSper channel: a polymodal chemosensor in
human sperm. EMBO J 2012; 31: 1654–65.
7. Kilic F, Kashikar ND, Schmidt R. Caged
progesterone: a new tool for studying rapid
nongenomic actions of progesterone. J Am Chem
Soc 2009; 131: 4027–30.
111
Ejakulationsstörungen
H. Porst
Praxis Prof. Dr. med. Hartmut Porst, Hamburg, Germany
Allgemein Ejakulationsstörungen sind:
– Vorzeitige Ejakulation (Ejaculatio praecox)
– Verzögerte/fehlende Ejakulation (Ejaculatio retarda/absentia)
– Retrograde Ejakulation
– Ejakulatvolumenstörungen (Hypospermie/
Aspermie)
– Schmerzhafte Ejakulation
Anderweitige seltene Ejakulationsstörungen
sind:
– unwillkürliche Ejakulationen (Pollutionen)
– anhedonische Ejakulationen (fehlendes
Lustgefühl)
– asthenische Ejakulationen (reduzierte/fehlende Ejakulationskraft)
– postejakulatorisches/orgastisches Erschöpfungssyndrom (schwerer Erschöpfungszustand mit diffuser klinischer Symptomatik)
Bei der Ejaculatio praecox unterscheidet
man die lebenslange oder primäre („kongenitale“), partiell genetisch bedingte Ejaculatio praecox von der erworbenen, sekundären
Ejaculatio praecox, welche meistens durch
andere Erkrankungen wie z. B. einer Erektilen Dysfunktion (ED), einer oder Schilddrüsenfunktionsstörungen (Hyperthyreose) hervorgerufen wird.
Für die Therapie der Ejaculatio praecox steht
die topische Applikation von Lidocain-/Prilocain-haltigen Medikamenten (z. B. Emla®)
oder aber die orale Medikation mit Substanzen aus der Stoffklasse der selektiven Serotonin-Re-uptake Inhibitoren (SSRI) bzw. der
trzyklischen Antidepressiva zur Verfügung,
wobei alle diese Therapien im Off-label-Use
eingesetzt werden.
Dapoxetin (Priligy®), ein kurz wirksamer
SSRI, ist derzeit das einzige, offiziell zur
Behandlung der EP in Deutschland zugelassenen Medikament. Bei über 6000 in die
Dapoxetinstudien eingeschlossenen Patienten kam es unter Dapoxetin zu einer zwischen 3–4-fachen Zunahme der IELT.
Dapoxetin war sowohl bei lebenslanger als
auch bei erworbener Ejaculatio präcox vergleichbar gut wirksam (Abb. 9).
Dapoxetin (Priligy®) ist in 30- und 60-mgTabletten im Handel und stellt derzeit die
First-line-Therapie der E. praecox dar. Typische Nebenwirkungen von Dapoxetin sind
Übelkeit, Kopfschmerzen und Schwindel,
diese führten aber in den Studien nur selten
(3–8 %) zum vorzeitigen Absetzen der Prüfsubstanz.
Andere Substanzen wie Tramadol, ein zentral wirksames Opioidanalgetikum, Alphablocker wie Phenoxybenzamin, Terazosin,
Tamsulosin und zuletzt Sildosin haben in
kleineren Studien gewisse Wirksamkeiten
gezeigt, sollten aber als Ausnahmemedikation betrachtet werden.
Abbildung 9. H. Porst. Gepoolte Ergebnisse der Dapoxetinstudien bei lebenslanger und erworbener E. praecox.
Nachdruck mit Genehmigung aus: [Porst H et al. Baseline Characteristics and Treatment Outcomes for Men with
Acquired or Lifelong Premature Ejaculation with Mild or No Erectile Dysfunction: Integrated Analyses of Two Phase
3 Dapoxetine Trials. J Sex Med 2010; 7: 2231–42].
PDE-5-Hemmer zeigten bei reiner E. praecox eine widersprüchliche Wirksamkeit. Gemäß den Richtlinien von EAU und ISSM/
ESSM sollte mit PDE-5-Hemmern nur bei
der Kombination ED + EP begonnen werden
und, falls noch erforderlich, durch eine spezifische E. praecox-Medikation (Emla®,
Priligy®) ergänzt werden.
Die Ejaculatio retarda/absentia kommt bei
bis zu 30 % der älteren Männer vor, wobei
mit dem Alter physiologischerweise die
Reizschwelle bis zum Auslösen der Ejakulation ansteigt. Hier ist die Aufklärungs-
arbeit des Arztes gefragt, die u. a. auf eine
Anpassung der sexuellen Stimulationstechniken zuhause abzielen sollte (Siehe z.
B. „Lost penis Syndrom“ bei weiter Vagina
bei Multipara). Medikamentös zeigten im
Einzelfall folgende Substanzen Wirkung:
Yohimbin, Midodrin, Pseudoephedrin,
Imipramin, Amantadin Bupropion, Cyproheptadin, Levodopa und Oxytocin-Spray
24 U intranasal. In schweren Fällen einer E.
retarda/absentia haben sich auch die Vibrator-/Elektroejakulation mit Ferticare® bzw.
Viberect® bewährt.
Die retrograde Ejakulation kann iatrogenchirurgisch oder durch Affektionen des autonomen Nervensystems bedingt sein. Bei
Fertilitätswunsch muss der postmasturbatorische Urin entsprechend aufbereitet werden.
Hypospermie und Aspermie können hormonell (Hypogonadismus,Hyperprolaktinämie)
bzw. medikamentös (Alpha-Blocker, 5Alphareduktase-Hemmer) bedingt sein und
werden durch Behebung der Ursache (TSubstitution, Prolaktinhemmer) bzw. Veränderung der Medikation (Alfuzosin statt
Tamsulosin oder Silodosin) beseitigt.
J Reproduktionsmed Endokrinol 2012; 9 (5)
357
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
Poster Presentations
 Postersession 1:
Andrological Implications
of Genital Tract Infections
P1
Review of Management of Cases
of Acute Epididymo-Orchitis: How
Can We Improve and are our Urological Guidelines in Need of Updating?
B. Hickerton1, D. Ellis1, C. Mullooley2, R. Gokhale2,
N. Parr1
1
Urology; 2Genito Urinary Medicine, Wirral University
Teaching Hospital, Merseyside, UK
Question Epididymo-orchitis is a common
diagnosis among urological admissions. Patients with epididymo-orchitis classically
present with characteristic unilateral scrotal
pain and swelling of relatively acute onset,
which can masquerade as torsion. Complications include abscess formation, testicular
infarction, testicular atrophy, development
of chronic epididymal induration, and permanent occlusion of the epididymal ducts,
resulting in infertility.
Despite the seriousness of the condition, recent studies have demonstrated that many
urologists and general practitioners are falling short of the recommended European Association of Urology guidelines for managing epididymo-orchitis. Therefore, the aim
of our study was to assess the current literature concerning epididymo-orchitis, and to
determine if the current practice at our teaching hospital could be improved.
Methods All Patients assigned ICD codes
for Orchitis, Epididymitis and other unspecified disorders of the male genital organs
were identified over a nineteen month period. Those with alternate diagnoses such as
testicular torsion, hydrocele and postoperative complications were excluded from the
study. For those remaining, information regarding demographics, whether or not a
sexual history was taken, investigations performed and treatment initiated was recorded.
Results 118 cases were identified, of which
49 were < 35 years old. 54% of all patients
were discharged without seeing a member of
the urology or genito urinary teams.
Discussion A number of key areas were
identified for development, including better
identification of the primary agent of infection. Indeed, the authors believe the mainstay of improvement will come from a
greater awareness by all specialities of current sexual health guidelines, and the knowledge of how to implement these regarding
epididymo-orchitis. Currently, many patients with epidydimo-orchitis have commenced antibiotics prior to referral to urology or genitourinary medicine, making diagnosis of sexually transmitted disease diffi-
358
J Reproduktionsmed Endokrinol 2012; 9 (5)
cult and further contact screening impossible, unless symptomatic re-infection occurs.
We have produced a set of recommendations
of how these improvements can be met, and
hope they will enhance current treatment
pathways.
P2
Leukocytes are Associated With
Apoptosis in Human Spermatozoa
C. Mupfiga, D. Fisher, T. Kruger, R. Henkel
Department of Medical Bioscience, University of the
Western Cape, Bellville, South Africa
Introduction Leukocytes are the major
source of reactive oxygen species (ROS) in
the ejaculate and an excessive number of leukocytes in the ejaculate contribute to up to
35% of all cases of male infertility [1]. ROS
have been associated with markers of
apoptosis such as sperm DNA fragmentation
[2], externalization of phosphatidylserine
[3], and caspase activation [2]. Thus, this
study aimed at investigating the impact of
seminal leukocytes on the induction of
apoptosis in human spermatozoa.
Materials & Methods Semen samples were
obtained from 60 men consulting for fertility
problems at the Tygerberg Academic Hospital and Vincent Pallotti Hospital (Cape
Town, South Africa). To investigate the relationship between seminal leukocytes and
sperm apoptosis, the following parameters
were measured: oxidative status in the ejaculate by evaluating the concentration of leukocytes in the ejaculate (Peroxidase test),
ROS production in the ejaculate (Luminol
test), generation of superoxide (O2¯•) (DHE
test) and hydrogen peroxide (H2O2) by spermatozoa (H2DCFDA: 2,7-dichlorofluorescein diacetate), and the activation of reduced
glutathione (GSH) in sperm (GSH-Glo™);
sperm apoptotic markers by measuring mitochondrial membrane potential (ΔΨm) disruption (DePsipher™), caspase-3/7 activation (Caspase-Glo™), and DNA fragmentation (TUNEL).
Results Leukocyte concentration had a significant positive correlation with ROS production in the ejaculate (ρ = 0.378; p = 0.0064),
sperm O2¯• production (ρ = 0.336; p = 0.0098),
and caspase-3/7 activation in sperm (ρ =
0.527; p < 0.0001). ROS production in the
ejaculate, besides the correlation with the
concentration of seminal leukocytes, was
positively correlated with GSH activation
(ρ = 0.577; p < 0.0001), caspase-3/7 activation (ρ = 0.487; p = 0.0005), and DNA fragmentation (ρ = 0.331; p = 0.0171). Sperm
O2¯• production, which was associated with
seminal leukocyte concentration, had a significant positive correlation with sperm
ΔΨm disruption (ρ = 0.261; p = 0.0446), and
caspase activation (ρ = 0.457; p = 0.0055).
Discussion Excessive ROS production in
the ejaculate, mainly a consequence of seminal leukocytes, is not only linked to the internal generation of O2¯• by spermatozoa, but
has a significant association with early markers of apoptosis; disruption of sperm ΔΨm
and the activation of effector caspases-3 and
-7. This suggests that an increased concentration of seminal leukocytes, is not only associated to elevated ROS production in the
ejaculate and by spermatozoa, but may be
linked to the induction of apoptosis in human
spermatozoa.
References:
1. Henkel et al. Asian J Androl 2007; 9: 299–304.
2. Wang et al. Fertil Steril 2003; 80: 531–5.
3. Henkel et al. Fertil Steril 2004; 81: 965–72.
P3
Testicular Function in HIV-positive
Patients Under Stable Antiretroviral Therapy
A. Pilatz1, T. Discher2, H.-C. Schuppe3, F. Wagenlehner3,
W. Weidner3, J. Lohmeyer2, T. Diemer3
1
Clinical Research Unit, 3rd Medical Clinic and Policlinic; 2Department of Internal Medicine II; 3Urology,
Pediatric Urology and Andrology, Justus-Liebig-University Giessen, Germany
Introduction & Objective With the availability of effective antiretroviral therapy
(ART) for HIV-positive patients and subsequent improvements in life expectancy, aspects of sexual function and family planning
issues are of increasing importance. However, the testicular function in patients under
stable ART has not been systematically investigated with respect to HIV surrogate parameters. We present a prospective study to
assess sex hormones and semen parameters
in HIV-positive patients.
Methods Since May 2011 we enrolled 97
men in a prospective study* for semen analysis (median age: 44 years; range: 24–64
years) and determined clinical parameters as
well as sex hormones. Exclusion criteria
were being not on stable ART, ongoing testosterone therapy, a history of vasectomy,
and co-infection with hepatitis B or C.
Results The following median (range) semen parameters were determined in 64 patients: Volume 2.4 ml (0.2–6.0); sperm concentration 53.4 Mio/ml (0.01–425); progressive motility 44% (0–69); normal morphology 3% (0–10); peroxidase + leukocytes
0.1 Mio/ml (0.0–15.7); elastase 77 ng/ml
(10–2500). The median (range) testicular
volume measured by ultrasound was 12.6 ml
(3.3–25.6). The median (range) clinical parameters documented were: knowledge of HIV
infection 6 years (0–28); duration of ART
5 years (0–17); current CD4+ cells 582/µl
(98–1297); nadir CD4+ cells 233/µl (3–762);
viral load in blood below detection limit 59/
64 (92.2%). Univariate analysis revealed no
significant correlations between semen pa-
rameters/sex hormones and any HIV surrogate parameter. In contrast, both sperm concentration and progressive motility were significantly correlated with FSH and testicular
volume (in all cases: p < 0.01).
Conclusions Semen quality in HIV-positive patients under stable ART is not impaired. Our data provide evidence, that semen quality is not associated with any HIV
surrogate parameter, but rather an individual
feature.
* Supported by LOEWE (excellence initiative of
the state government of Hessen, Germany) focus
group MIBIE (Male Infertility during Infection
and Inflammation) project B2.
P4
Testicular Atrophy after Acute Epididymitis/Epididymo-orchitis:
Fact or Fiction?
A. Pilatz, F. Wagenlehner, H.-C. Schuppe, B. Altinkilic,
W. Weidner
Urology, Pediatric Urology and Andrology, JustusLiebig-University, Giessen, Germany
Introduction & Objective Male genital
tract infections are suggested to be an important cause for male infertility. However, the
frequency of testicular atrophy resulting
from acute epididymitis/epididymo-orchitis
is unknown. We present an ultrasound-based
prospective follow-up study to assess testicular size in patients suffering acute epididymitis with and without concomitant orchitis.
Methods Since May 2007 we enrolled 80
men (median age: 49 years; range: 18–83
years) with acute unilateral epididymitis/
epididymo-orchitis receiving a throughout
conservative therapy. Testicular volume and
perfusion on both sides was determined by
ultrasound at first presentation, after 2
weeks, and after 3 months in all patients. At
first presentation, the patients were allocated
to subgroups according to the intratesticular
perfusion of the affected testis compared to
the contralateral side: 1) isolated epididymitis (normal perfusion) or 2) epididymo-orchitis (increased perfusion). The investigation was conducted by a single urologist experienced in scrotal ultrasound, with identical equipment in all cases. Statistical analysis was performed using the Friedman test
with follow-up pairwise comparisons.
Results Epididymitis without testicular involvement was evident in 37 patients, while
43 suffered from epididymo-orchitis. In patients with isolated epididymitis, the median
testicular volume on the affected side was
14.3 ml at first presentation, 13.7 ml after
2 weeks, and decreased to 12.9 ml after
3 months (p < 0.01). In patients with epididymo-orchitis, the median testicular volume
on the affected side decreased from 16.6 ml at
first presentation, to 13.7 ml after 2 weeks, and
finally to 11.6 ml after 3 months (p < 0.001).
However, the median testicular volume on
the healthy contralateral side was initially
12.6 ml, 12.8 ml after 2 weeks and 13.3 ml
after 3 months, and thus not significantly dif-
ferent over time (p = 0.121). Compared to
the contralateral testis, no significant differences regarding the testicular volumes were
evident after a period of three months in patients with isolated epididymitis as well as
those with concomitant orchitis (p = 0.925
for epididymitis; p = 0.063 for epididymoorchitis).
Conclusions We provide first-time evidence, that acute epididymitis and epididymo-orchitis do not result in testicular atrophy
as measured by ultrasonographic volumetry.
In fact, acute epididymitis/epididymo-orchitis is associated with initial elevated testicular volumes and subsequent normalization in
the course of time compared to the non-affected side. A longer follow-up as well as a
detailed investigation of testicular function
is required to further elucidate the impact of
epididymitis on male reproductive health.
Supported by a start-up funding of the medical
faculty (A.P.).
P5
Correlation of Seminal Inflammatory and Sperm Quality Parameters
in Patients with CP/CPPS and Infertility – Is diagnostic Value of
Seminal Cytokine Interleukin-8
(sIL-8) Superior to Elastase or Peroxidase Positive Leukocytes?
A. Rusz1, 2, A. Pilatz2, R.-H. Bödeker3, F. Wagenlehner2,
D. Thorsten2, H.-C. Schuppe2, K. Steger2, W. Weidner2
1Department of Urology and Andrology, Military Hospital Budapest, Hungary; 2Department. of Urology,
Pediatric Urology and Andrology; Department of
Medical Statistics, Justus-Liebig-University, Giessen,
Germany
Question Male genital tract (MGT) infec-
tions/inflammations are considered causative factors for infertility in up to 20%. The
effect of Chronic Prostatitis/Chronic Pelvic
Pain Syndrome (CP/CPPS) and silent MGT
infections/inflammations on male infertility
is a matter of debate. Diagnostic value of different seminal inflammatory parameters is
controversially discussed in the literature.
Recent studies suggest that sIL-8 might be a
good biomarker for these disorders. The aim
of our study was to compare seminal inflammatory and fertility parameters in a series of
male patients with infertility and patients
with CP/CPPS evaluating the correlation of
inflammatory parameters in the ejaculate
(Peroxidase Positive Leucocytes-PPL, Leucocyte-Elastase-LE and seminal Interleukin8 – sIL-8) and basic parameters of semen
quality (sperm density-D, motility-Mot,
morphology-Mor) with special focus on expected diagnostic value of sIL-8.
Methods Inflammatory parameters in the
ejaculate (PPL – n/mL, LE – ng/mL and sIL8 – pg/mL) and sperm quality parameters
(D – n/mL, Mot – a+b in % and Mor – normal in %) using WHO 4. Edition reference
levels were determined in 77 infertile patients and 174 patients with CP/CPPS (34
NIH IIIA, 140 NIH IIIB) and correlation was
statistically evaluated. For analysis all vari-
ables were dichotomized because of their
distributions. Results of localization studies
(2 glass test) and NIH-CPSI scores were
compared to seminal inflammatory and fertility parameters.
Results In patients with CP/CPPS IIIA and
IIIB median PPL were 230,000 and 40,000,
LE 187 and 95, sIL-8 2,968 and 1,558 respectively. After dichotomizing variables,
only IL-8 (p = 0.034) was significantly
higher in patients with CP/CPPS IIIA compared to IIIB. Median D was 47.8 × 106 vs
46.5 × 106/mL, Mot a+b 57 vs 56.5%, Mor 3
vs 4% normal, respectively. NIH-CPSI median pain score was 11 vs 10, total score 23
vs 22, respectively.
In infertile patients median PPL were 7,000,
LE 91, sIL-8 1,602. Median D was 4.9 × 106/
mL, Mot a+b 24% and Mor 2% normal.
There was no significant correlation between
inflammatory parameters in the ejaculate and
sperm quality parameters in patients with
CP/CPPS and infertile patients and no significant correlation between inflammatory
parameters in the ejaculate and NIH-CPSI
scores in patients with CP/CPPS.
Conclusion Inflammatory parameters in the
ejaculate, if dichotomized, are not correlated
with sperm quality parameters in patients
with CP/CPPS and infertile patients. In our
series of patients sIL-8 was not found to be a
sensitive and reliable marker of MGT infections/inflammations. Determination of specific and sensitive seminal markers for MGT
infections/inflammations in male infertility
with validated break points would be of great
importance.
P6
Alpha-Haemolysin Differentially
Modulates Innate Immune Responses in the Experimental
Murine Epididymitis Model
T. Lang1, C. Hudemann2, S. Bhushan1, S. Tchatalbachev3,
A. Meinhardt1
1Anatomy and Cell Biology, Justus-Liebig-University,
Giessen; 2Institute of Laboratory Medicine and
Pathobiochemistry, Molecular Diagnostics Philipps
University , Marburg; 3Institute for Medical Microbiology, Justus-Liebig-University, Giessen, Germany
Introduction Infection and inflammation of
the urinary tract are aetiological factors contributing to infertility in men. Epididymitis
is often the consequence of ascending bacterial infection into the urinary tract. Specific
strains of Uropathogenic E. coli (UPEC)
produce the toxin alpha-haemolysin (hlyA),
which has been shown to manipulate host
immune responses. The aim of this study
was to elucidate consequences of hlyA production on innate immune responses in the
UPEC induced murine experimental epididymitis model.
Methods & Materials To evaluate effects
of hlyA on cytokine production in vitro,
RAW 267.4 cells or single epididymides dissected from C57BL/6N mice were left untreated, treated with LPS (100 ng/mL) or
treated with clinically relevant pyelone-
J Reproduktionsmed Endokrinol 2012; 9 (5)
359
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
phritic α-haemolytic (UPEC CFT073) or the
non-haemolytic E. coli strain NPEC 470.
Cell supernatants were collected and cytokine production analyzed using the BD™
Cytometric Bead Array. Establishment of
the murine experimental epididymitis model
was achieved by injection of 40,000 UPEC
CFT073 or NPEC 470 in total, into both left
and right vas deferens of C57BL/6N mice.
PBS injections were used as a sham control
for in vivo experiments. Following 3 days
infection, epididymides were dissected and
snap frozen. qPCR analyses was performed
to quantify pro-inflammatory gene expression. Immuno-fluorescent staining was used
for the detection of macrophages (F4/80) and
T-cells (CD3). Statistical analysis was performed by One-way ANOVA. P ≤ 0.05 is
considered statistically significant.
Results We show that α-haemolytic UPEC
significantly reduced secretion of pro-inflammatory cytokines TNF-α, IL-6, IL-1
and IFN-γ in epididymal organ cultures and
RAW 267.4 cells following infection. Conversely, in vivo qPCR analyses revealed expression of early response genes TNF-α and
IL-6 were significantly increased by day 3
following UPEC infection. Interestingly,
RANTES/CCL5 and IFN-γ gene expression
were differentially modulated dependent on
the hylA status of the E. coli strain. Our findings illustrate hlyA production significantly
enhances RANTES expression following
UPEC infection in contrast to PBS and NPEC
infected mice. Conversely, IFN-γ gene expression in UPEC infected mice was comparable to PBS mice, whereas NPEC significantly increased IFN-γ expression. In addition, a decrease in the number of F4/80 and
CD3+ cells within the epididymal interstitium of UPEC infected mice was observed in
comparison to NPEC infected mice.
Conclusion Overall these finding suggest
that hlyA produced by UPEC attenuates host
innate immune responses in the initial phases
of infection for successful colonisation within the epididymis. Furthermore, the downregulation of IFN-γ attenuates maturation of
adaptive immune responses evading elimination and contributing to persistence.
P7
Characteristics of Staphylococcus
aureus and Escherichia coli, Collected from Infertile Men’s Urethra
A. Godovalov1, T. Danielyan2, L. Bykova1, A. Dmitrishin1
1Acad. E.A. Wagner Perm State Medical Academy,
Immunology and Microbiology; 2Ltd. Medical Studio,
Perm, Russian Federation
Methods Clinical and microbiological ex-
amination of 77 men from infertile couples
was implemented. It included bacteriological research of separable urethra.
Results From clinical point examined men
had the following symptoms: frequent and
painful urination (85%), nycturia (15%),
stomachache (44%), perineal pain (32%),
skin rash (18%), hyperaemia (98%), edema
of urethra’s mucous membrane (23%). Pros-
360
J Reproduktionsmed Endokrinol 2012; 9 (5)
tatitis and vesiculitis were revealed in 82%
of cases as a result of ultrasonic diagnostics.
Microbiological research showed 75,3% of
gram-postive bacteria strains, 22,1% of
gram-negative bacteria strains and 23,6% of
Candida fungus. Gram-positive microorganisms included genus Staphylococcus sp.
(75,9%), Streptococcus sp. (19%) and Corynebacterium sp. (5,1%). In 56,8% of cases
staphylococci were coagulase-positive (76%
St. aureus, 24% St. intermedius). Gramnegative microorganisms were represented
with Enterobacteriaceae in 76,5% of cases
and Neisseria in 23,5% of cases. E. coli were
singled out in 76,9% of cases, Citrobacter
diversus – in 7,7% of cases, Edwardsiella
ictaluri – in 7,7% of cases, Klebsiella sp. – in
7,7% of cases. Monocultures were singled
out in 42,2% of cases (50% St. aureus; 25%
St. haemolyticus; 16,7% St. intermedius;
8,3% St. epidermidis). 66,7% of St. aureus
were resistant to oxacillin, their quantity was
more than 105 CFU/cottonwool tampon.
These strains were resistant to at least 5 antibiotics in 75% of cases. St. aureus in quantity less than 104 CFU/cottonwool tampon
were oxacillin-sensitive, resistance to at least
5 antibiotics was fixed in 50% of cases.
St. aureus strains resistant to at least 3 antibiotics were singled out in 16,7% of cases.
E. coli was founded in monoculture in 31,6%
of cases (83,3% of them had haemolytic
characteristics). At least 105 CFU/cottonwool tampon of E. coli were singled out in
66,7% of cases, haemolytic characteristics
had 75% of them. 75% of at least 105 CFU/
cottonwool tampon were resistant to not
more than 3 antibiotics. No more than 104
CFU/cottonwool tampon of E. coli, in one
half of cases were resistant to at least 5 antibiotics. Other half was resistant to no more
than 3 antibiotics. In 9,1% of cases E. coli
strains were picked out with St. aureus.
Conclusion Therefore our research shows
that urethra of infertile man more frequently
has staphylococci and enterobacteria – less
frequently. However their presence influences greatly on the flow of inflammatory
process.
P8
Clinical and Etiological Features
of Nonspecific Male Urethritis
A. Godovalov1, T. Danielyan2, L. Bykova1, A. Dmitrishin1
1Acad. E.A. Wagner Perm State Medical Academy,
Immunology and Microbiology; 2Ltd. Medical Studio,
Perm, Russian Federation
Question Increase of unit weight of condi-
tionally pathogenic microflora in etiological
structure of infections inflammatory diseases
of urogenital tract is noted nowadays. Aim of
this research is to examine clinical and microbiological features of men with nonspecific urethra.
Methods 45 men with inflammatory urogenital diseases were inspected. Clinical and
laboratory inspection included anamnesis
collection and bacteriological study of separated urethra’s part.
Results Clinically examined men had the
following symptoms: frequent and painful
urination, nycturia, perineal pain, skin rash,
hyperaemia and edema of urethra’s mucous
membrane. Prostatitis and vesiculitis were
revealed in 82% of cases as a result of ultrasonic diagnostics. During microbiological
study of urethra’s separated part 77 microorganisms strains were figured out. 75,3% of
them were gram-positive bacteria strains,
22,1% of them were gram-negative bacteria
strains, and 23,6 were Candida fungus.
Gram-positive microorganisms included genus of Staphylococcus sp. (75,9%), Streptococcus sp. (19%) and Corynebacterium sp.
(5,1%). In 57% of cases staphylococci were
coagulase-positive. Coagulase-negative staphylococci were presented with St. haemolytics, St. saprophyticus and St. epidermidis.
Among streptococci appeared Str. viridans
in 45,4% of cases, Str. mitis – in 9,1% of
cases, Str. sanginis – in 9,1% of cases. All
figured out corynebacteria were presented
with nonpathogenic species of natural normal flora. Gram-negative microorganisms
were represented with Enterobateriaceae in
76,5% of cases, and Neisseria in 23,5% of
cases. Escherichia coli were singled out in
76,9% of cases, Citrobacter diversus in
7,7% of cases. Neisseria was represented
with N. lactamia, N. sicca, et al. All figured
out yeast-like fungi were represented with
Candida albicans.
Conclusion Therefore our research shows
that urethra of men with nonspecific urethritis more frequently has staphylococci. Enterobacteriaceae and yeast-like fungi appear
less frequently in the case of nonspecific urethritis. However their presence influences
greatly on the flow of inflammatory process.
P9
Does HPV have an Impact on the
Male Idiopathic Infertility?
M. Kogan, K. Ibishev, K. Shiranov
Rostov State Medical University, Rostov-on-Don,
Russian Federation
Introduction & Objectives In 25% infertile
men this condition is considered as idiopathic. Role of HPV in men infertility has
not been determined.
Material & Methods A series of 49 infertile
patients, aged 25–40 years, without overt
cause were reviewed. Evaluation of ejaculate
was performed in according to WHO criteria
(2010). For microbiological analysis urethral swab and ejaculate were used. Virus
detection in ejaculate and urethral swab using analysis of amplified DNA sequences
was performed. Considering a possibility of
viral infection contamination during taking
of urethral swab and ejaculate, a control
group was assessed (n = 16). The urethral
swab and ejaculate evaluation were made in
the different days.
Results In all patients of both groups in
ejaculate HPV was found. However, in urethral swab HPV was found in 79.5% and
68.7% patients in Group 1 and Group 2, re-
Table 4. K. Shiranov et al.
Incidence
Viral type
Ejaculate
Urethra
p
6.11
32.6%
22.4%
< 0.05
16
79.5%
30.6%
< 0.05
18
71.4%
42.8%
< 0.05
31
12.2%
10.2%
> 0.05
33
57.1%
34.7%
< 0.05
Table 5. K. Shiranov et al.
Pathospermia
Viral type Ejaculate Urethra
Oligozoospermia
6.11
16
18
31
33
8.2%
10.2%
12.2%
–
6.1%
8.2%
–
6.1%
–
–
Asthenozoospermia
6.11
16
18
31
33
24.4%
22.4%
26.6%
8.2%
20.4%
2%
16.3%
20.4%
10.2%
14.3%
Teratozoospermia
6.11
16
18
31
33
–
32.6%
20.4%
4.0%
16.3%
–
14.3%
10.2%
–
20.4%
Oligoasthenozoospermia
6.11
16
18
31
33
–
14.3%
–
–
14.3%
–
10.2%
6.1%
–
–
spectively (Tab. 4). In Group 1, in ejaculate
and urethral swab HPV types 16, 18 and 33
were predominated, while the less frequent
was type 31. In Group 2, the most common
viral type was 16. In Group 2, the only one
viral type was seen in 16.3% cases, and in
83.7% cases viral associations was found,
while in Group 2 only viral associations
were seen.
Comparative analysis of pathospermia types
and viral in ejaculate/urethra is shown in
Table 5.
Conclusions In patients with idiopathic infertility in ejaculate HPV types 16, 18, 33 are
often diagnosed. Incidence of viral in ejaculate and urethral swab is the highest in asthenozoospermia and teratozoospermia. Analysis of amplified DNA sequences results of
urethral swab and ejaculate were similar in
20.5% men. Viruses are seen more frequently in ejaculate, than in urethral swab.
Causative role of HPV in men with idiopathic infertility will be needed to determine.
P10
Uropathogenic E. coli inactivate
host Survival AKT Signalling
Pathways in Testicular Cells
Z. Zhang1, S. Bhushan1, S. Tchatalbachev2, T. Chakraborty2,
A. Meinhardt1
1 Department of Anatomy and Cell Biology; Department
of Medical Microbiology, Justus-Liebig-University
Giessen, Germany
Uropathogenic Escherichia coli (UPEC) are
a major cause of acute and chronic ascending
bacterial genital tract infections in men
which ultimately can result in impaired spermatogenesis. UPEC can modulate host survival pathways to attenuate host inflammatory responses and escape from host immune
response. Here, we have shown that in isolated rat Sertoli cells (SC) and peritubular
cells (PTC) the UPEC virulence factor alpha
hemolysin dephosphorylates AKT, also
know as Protein Kinase B (PKB), in order to
inactivate it. AKT dephosphorylation leads
to activation of several downstream targets
by dephosphorylation, two of which are
FOXO (Forkhead box class of transcription
factors) and glycogen synthase kinase
(GSK)-3β. GSK-3β is inactivated by Aktmediated phosphorylation at serine 9 (S9).
We have observed dephosphorylation of
phosphorylated GSK-3β at S9 following
treatment with UPEC in SC and PTC. In addition we have observed the activation of
FOXO1 transcription factor by dephosphorylation at serine 256 in SC. Following dephosphorylation at serine 256, FOXO1 can
translocate to the nucleus and execute diverse cellular function such as cell cycle arrest, apoptosis, reactive oxygen species detoxification and DNA repair. In SC and PTC,
we have not observed any significant change
in the expression of cyclin D1, a regulator of
cell cycle progression. Similarly we have not
observed any visible change in the expression of SOD (sodium dismutase, a detoxification enzyme of reactive oxygen species).
However, we have observed increased expression of sirtuin 3/4 (histone deacetylase)
by Western blot analysis. These results indicate that upon translocation to the nucleus
FOXO1 may be deacetylated by sirtuins,
consequently inhibit FOXO function. Taken
together these results suggest that UPEC can
evade host immune cell response by manipulating host surviving signalling pathway.
Moreover suppression of AKT signalling
pathway may lead to damage of Sertoli cells
which could impair spermatogenesis and
germ cell death.
P12
Lipopolysaccharide Inhibits Mitochondrial Membrane Potential in
Human Spermatozoa through the
Activation of Cannabinoid Receptor-1 by Sperm-Generated
Anandamide
A. Barbonetti1, 2, M. R. C. Vassallo1, A. De Mutis1,
A. C. Giornetta1, S. Francavilla1, F. Francavilla1
1Andrology Unit, University of L’Aquila; 2Centre for
Clinical Research, San Raffaele Sulmona, Italy
Introduction Gram-negative bacteria, frequently involved in urogenital tract infections, release the endotoxin lipopolysaccharide (LPS), and its receptor, Toll-like receptor-4 (TLR4), has been recently identified in
human spermatozoa. It has been recently reported that sperm exposure to LPS affects
sperm motility and activates sperm apoptotic
processes, although the underlying signal
transduction remains to be clarified. In macrophages, LPS induces the generation of the
endocannabinoid Anandamide (AEA) from
its membrane phospholipid precursors,
through the activity of the calcium-dependent NAPE-hydrolyzing phospholipase D
(NAPE-PLD). In human spermatozoa,
which exhibit a completely functional AEArelated endocannabinoid system (including
NAPE-PLD), the activation of cannabinoid
receptor-1 (CB1) inhibited sperm mitochondrial membrane potential (ΔΨm). In this
study we tested the hypothesis of a contribution of CB1 activation by sperm-generated
AEA in the adverse effects exerted by LPS
on human spermatozoa.
Material & Methods Sperm motility was
evaluated with CASA and spermatozoa exhibiting an average pathway velocity > 5 µm/
sec were categorized by the software as motile sperms. Sperm mitochondrial membrane
potential (ΔΨm) was assessed at flow cytometry with JC-1, which emits red or green
fluorescence in the presence of high or low
ΔΨm, respectively.
Results The exposure of motile sperm suspensions for 6 h to LPS (100 ng/ml) produced a significant decrement in sperm
ΔΨm, as indicated by the lower percentage
of spermatozoa emitting red JC-1 fluorescence with respect to untreated samples
(43.1 ± 9.4% vs 65.0 ± 9.1%; p = 0.007); this
effect was not associated to decreased sperm
motility (motile sperms: 55.8 ± 18.9% vs
55.5 ± 21.3%). The LPS-induced inhibition
of ΔΨm was prevented by the selective CB1
cannabinoid receptor antagonist, SR141716
(0.1 µM), which preserved high percentages
of spermatozoa with red JC-1 fluorescence
(60.6 ± 13.0%).
Conclusions These data suggest that the activation of CB1 by AEA generated by calcium-dependent NAPE-PLD activation
could account for the adverse effect of LPS
on sperm ΔΨm. However, it is not here confirmed that LPS affect sperm motility. Actually, ΔΨm depression cannot induce sperm
immobilization in a standard medium containing glycolysable sugars, as glycolysis ac-
J Reproduktionsmed Endokrinol 2012; 9 (5)
361
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
tively compensates for any lack of ATP production by mitochondria in maintaining
sperm motility.
P13
The effects of Kerack used in Iran
on Sperm Parameters and Testis
Structure in Adult Mice
M. Amini, M. Koruji
Cellular and Molecular Research Centre, Tehran, Iran
Introduction Kerack is emerging illicit substance which its use is rising up in Iran. It has
harmful effects on body organs. The aim of
this study is to investigate the effects of Iranian Kerack on sperm parameters and testicular structure of mice.
Methods In this study, 25 male mice (Balb/C)
were divided into 5 groups (control [Fig. 10],
sham and 3 experimental). Experimental
groups of Kerack-dependent mice (received
ascending dose of Kerack for 7 days twice
daily) were divided into three categories, experimental I, II and III. Experimental I was
given Kerack at a dose of 5 mg/kg, experimental II 35 mg/kg and experimental III 70 mg/kg,
intraperitoneally twice a day for a period of
35 days (Fig. 11). The sham group received
normal saline and lemon juice (2.6 µl/ml)
whilst the control group just received water
and food. Mice were then scarified and sperm
Figure 10. M. Amini et al. Cross Sections of normal
Mouse Testes staining with H & E (Control Group).
Figure 11. M. Amini et al. Cross sections of Mouse
Testes staining with H & E treated with Kerack used in
Iran at 70 mg/kg boy weight twice a day for 42 days
(Experimental Group III).
362
J Reproduktionsmed Endokrinol 2012; 9 (5)
removed from cauda epididymis and analyzed for sperm count, motility, morphology
(normal/abnormal) and viability. Testes were
also removed, weighed and processed for
light microscopic studies.
Results The results showed that epididymal
sperm parameters were significantly decreased
in experimental groups (dose-dependent) compared with sham and control groups (p ≤ 0.01).
Gonadosomatic index and diameters of seminiferous tubules were significantly reduced
with high dose Kerack (70 mg/kg) injected in
comparison with control testes.
Conclusion It is concluded that Kerack
used in Iran has the destructive effects on reproductive system in male mice.
P14
Involvement of Testosterone in
the Regulation of Inflammatory
Responses in Testicular and Immune Cells
M. Fijak1, L.-J. Sauber1, M. Walecki1, E. Wahle1,
S. Bhushan1, H. Hackstein2, G. Schuler3, A. Meinhardt1
1Department of Anatomy and Cell Biology; 2Institute
for Clinical Immunology and Transfusion Medicine;
3
Clinic for Obstetrics, Gynecology and Andrology of
Large and Small Animals, Justus-Liebig-University
Giessen, Germany
Introduction An increasing body of evidence indicates that beside their spermatogenic function androgens also play a role in the
modulation of autoimmune disease and contribute to suppression of inflammatory/autoimmune response.
In our recent study, we have shown that substitution of reduced testosterone levels in a
rat model of chronic testicular inflammation
– experimental autoimmune orchitis (EAO) –
has led to a significant amelioration of disease characteristics by inhibition of inflammatory responses in the testes. This was
documented by a strong decrease of elevated
macrophage and CD4+T cells numbers in
the interstitial space concomitant with significant increase of “anti-inflammatory”
regulatory T cells (CD4+CD25+Foxp3+) as
well as significantly lower mRNA levels of
TNF-α, IL-6 and MCP-1 as compared to
EAO controls. Anti-inflammatory effects of
testosterone supplementation during chronic
testicular inflammation prompted us to investigate a putative direct influence of androgens on the generation of regulatory T
cells and immune response in testicular macrophages (TM) and Sertoli cells (SC), both
important contributors to immunological
balance in the testis.
Material & Methods Leydig cells were isolated from adult rat testis by Percoll gradient
and testosterone production was stimulated
by addition of hCG. Collected conditioned
media were used for cultivation of isolated
splenic T cells. Differentiation of regulatory
T cells was estimated by measurement of expression of Foxp3 transcription factor by
FACS and secretion of IL-10 and TGF-β by
ELISA. In another approach, isolated TM
and SC were pre-incubated with different
concentrations of testosterone before induction of inflammatory response by LPS. IL-6,
IL-10, TNF-α and MCP-1 mRNA expression was investigated by quantitative realtime RT-PCR.
Results Testosterone produced by conditioned media from Leydig cells stimulated
the expression of Foxp3 transcription factor
in splenic CD4+ T cells as well secretion of
IL-10 and TGF-β by these cells.
In TM inflammatory response induced by
LPS was inhibited by pre-incubation with
increasing concentrations of testosterone.
Significant reduction of IL-6 and TNF-α
mRNA levels were achieved in the presence
of 1000 nM of testosterone. A similar effect
was visible in SC for TNF-α mRNA. LPSinduced MCP-1 transcripts in TM were significantly downregulated after pre-incubation with 100 and 1000 nM of testosterone.
The anti-inflammatory effect of testosterone
in TM and SC was abolished by use of the
androgen antagonist flutamide.
Conclusions In view of the high intratesticular testosterone levels under normal conditions and their decrease under inflammatory
conditions, our data point to a role of androgens in the immune homeostasis of the testis.
Androgen action could be mediated by direct
effect on SC and TM as well as on thede
novogeneration and functional differentiation of regulatory T cells.
P15
Screening Urin Analysis for Diagnosis of Prostatitis and Urogenital Tuberculosis
E. Kulchavenya
Research TB Institute, Novosibirsk, Russian Federation
Introduction Abnormal urin analysis can be
seen in up to 90% of urogenital tuberculosis
(UGTB). The diagnosis of prostatitis by 4glass Meares-Stamey test leads to misdiagnosing of UGTB.
Material & Methods 177 patients were enrolled. Patients were randomized in 4 groups.
1st group (33 men) was examined by 4-glass
test Meares-Stamey. 2nd group (87 men) was
examined with 2-glass test: in 2-a (42 patients) urin analyses were performed before
digital rectal examination (DRE); in 2-b (45
patients) DRE preceded urin analyses.
3rd group (57 patients) was examined with
our technique. The urine was investigated in
3 consequent portions during urine voiding
without interruption. DRE performed after
urin analysis, expressed prostatic secretion
(EPS) was investigated. Efficiency of tests
was evaluated by comfortability and by percent of false-positive results (FPR).
Results Most comfortable test was in 2-b
subgroup, and 4-glass test was worse of all.
Comfortability of examination in both 2nd
and 3rd groups were similar and significantly.
Conclusions Specificity and sensitivity of
3-glass test with followed DRE for diagnostic of chronic prostatitis is superior and does
not allow overlooking UGTB.
P16
Clinical Features of Male Genital
Tuberculosis in Siberia
high incidence rate, who had contact with
TB infection, who has recurrent course of the
disease, resistant to standard therapy.
E. Kulchavenya, D. Kholtobin
Research TB Institute, Novosibirsk, Russian Federation
P17
Efficiency of Uro-Vaxom in Prophylaxis of Relapse of Chronic
Prostatitis
Introduction Extrapulmonary tuberculosis
(EPTB), in spite of a few number of new-revealed patients, plays significant role in
pathophysiology.
Material & Methods We retrospectively
analyzed 131 history cases of Urogenital tuberculosis (UGTB patients), who were revealed in Novosibirsk in 2009–2011.
Results Among 131 patients in 88 (67.2%)
the isolated kidney TB was diagnosed, in 33
(25.2%) – male genital TB; 10 (7.6%) men
had generalized UGTB – combination of renal and genital TB, all of this ten had policavernous renal TB. Prostate TB was diagnosed in 19 patients, all were older 20 years:
21–39 yrs: 5 pts (21.0%), 40–59yrs: 8 pts
(42.1%), ≥ 60 yrs: 7 pts (36.8%). Most common complaints were perineal pain – 6 pts
(31.6%), dysuria (also 6 pts: 31.6%). Hemospermia was revealed in 5 pts (26.3%); erectile dysfunction – in 2 pts (10.5%). Prostate
TB had latent asymptomatic course in 2 pts
and was revealed pathomorphologically after
prostate biopsy because of benign prostatic
hyperplasia and high level of PSA (9.3 ng/ml).
MBT in prostate secretion / ejaculate was
found in 2 pts by PCR (10.5%).
TB orchiepidydymitis was diagnosed in 14
pts, all were older 20 yrs: 21–39yrs: 3 pts
(21.4%), 40–59 yrs: 7 pts, ≥ 60 yrs: 4 pts
(28.6%). The debut was with increasing of
the testis size in 8 patients (57.1%), among
them 5 had severe local pain (35.7%) and
high body temperature. Hemospermia was in
one man (7.1%), dysuria – in 5 patients
(35.7%). Acute onset presented 5 patients.
MBT was not found in this group.
Generalized urogenital tuberculosis (simultaneous lesion urinary tract and male genitals) was revealed in 10 patients, all were
older 20 years again: 21–39 yrs: 2 pts, 40–59
yrs: 7 pts, and one was ≥ 60 yrs. Half of the
patients complained of dysuria, 3 patients
presented flank pain and 2 hematuria. One
patient had hemospermia, another one
perineal pain. In 2 cases toxicity was found.
In 3 patients the debut of the disease was
with acute orchiepidydymitis. Mycobacteriuria was found in 4 patients (40%) – both by
culture and PCR.
Conclusion Most common form among
UGTB is kidney TB (74.8%, including 7.6%
with generalized UGTB). The onset of TB
orchiepidydydmitis was in 35.7% of patients,
hemospermia was in 7.1%, dysuria – in
35.7%. Most common complaints for prostate TB were perineal pain (31.6%), dysuria
(also 31.6%), hemospermia (26.3%). MBT
in prostate secretion/ejaculate was revealed
in this group in 10.5%.
UGTB has no specific symptom, even sterile
pyuria meets only in 25% only. All urogenital tract infections should be suspected on
UGTB in patients living in the region with
E. Kulchavenya, E. Brizhatyuk
Research TB Institute, Novosibirsk, Russian Federation
Introduction Urogenital tract infections
(UTIs) mostly are caused by E. coli and
about 60% have recurrent course. One of
optimal methods for prophylaxis of relapses
is immunoprofilaxis with Escherichia coli
extract Uro-Vaxom.
Material & Methods 127 pts with recurrent
UTIs: 23 chronic bacterial prostatitis, 75 recurrent cystitis and 29 chronic pyelonephritis. Relapses of UTI: 3.4 ± 0.8 per year.
All were treated for 1 month with 1 capsule
daily of Escherichia coli extract Uro-Vaxom.
Just after one more UTI episode occurring,
the second course of Uro-Vaxom was prescribed. Follow-up: 2 years.
Results After first course of Uro-Vaxom
86.7% had no relapse of UTI for 6 months.
After second course 29.2% had a “cold period” for 6 months, 48.8% for 9 months and
22.0% had no recurrence during a year. The
frequency of UTI episodes decreased from
3.4 ± 0.8 to 0.4 ± 0.2 per year, QoL increased
from 4.7 ± 1.0 up to 1.3 ± 1.1 score.
Conclusion The number of recurrence of
cystitis, prostatitis and pyelonephritis was
significantly lower after 2 consecutive courses
of Uro-Vaxom. Immunoprophylaxis of relapses of UTIs with Uro-Vaxom is high effective and good tolerant in patients with
chronic prostatitis as well as for another Urogenital tract infections.
P18
Male Urethral Condylomata: Our
Experience
A. Vives Sune, S. Camarena, O. Rajmil, G. Ortiz,
E. Ruiz Castane
Fundació Puigvert, Andrology Service, Barcelona, Spain
Aim To analyze clinical behaviour and
treatment of men presenting urethral condylomata.
Method Clinics and treatment of men who
consult for genital’s area condylomata and
also with urethral lesions. Treatment of
choice in patients for visible meatal lesions
was cryotherapy and gel instillation of 5%
fluorouracil in affected urethral. Followup’s frequency was every 7–15 days and urethroscopy controls 6 months after the patients is free of lesions. Urethroscopy before
treatment was applied only in 4 patients with
dysuria. Serology screening was performed
to all, except three with known HIV+.
Results A total of 359 men consulting for
genital condylomata, 45 (12.5%) presented
urethral lesions. Four patients were loosed of
follow-up. For 24 patients (58.5%) first consult was because the meatus exophytic lesion. 11 (26.8 %) were not aware of having
urethral lesions, 4 (9.7%) consulted because
of dysuria, 1(2.4%) because of urethrorrhagia, and 1(2.4%) for stinging upon voiding.
The primary treatment performed was cryotherapy. Urethroscopy was performed in 4
patients previous treatment and warts verified beyond the navicular fossa. In those,
treatment was 5% fluorouracil without having complications. All control urethroscopies
post treatment were negatives.
Conclusions Meatal/urethral condylomata
are infrequent and misleading condition in
cases of genital warts. Nevertheless it is to be
advice an active investigation to find them.
Endoscopic manipulation is recommended
only in cases of urinary symptoms. Cryotherapy is simple and easy in cases of accessible lesions. When urethral involvement,
5% fluorouracil gel instillation seem to be a
good initial therapeutic option.
P19
Testicular Inflammation in Infertile Men
T. Haggeney1, A. Pilatz2, T. Diemer2, W. Weidner2,
H.-C. Schuppe2, M. Bergmann1
1Department of Veterinary Anatomy, Histology and
Embryology; 2Department of Urology, Pediatric Urology and Andrology, Justus-Liebig-University Giessen,
Germany
Introduction Infections and inflammation
of the genital tract are major causes of male
infertility. Chronic, asymptomatic orchitis,
however, is difficult to diagnose by means of
clinical parameters. Notably, testicular biopsies of infertile patients frequently show impaired spermatogenesis associated with focal
or diffuse interstitial inflammatory infiltrates. The infiltrates are dominated by Tlymphocytes, macrophages and mast cells.
Our knowledge concerning specific subpopulations of testicular immune cells, e.g.
T-helper cells and Th17-inducing antigenpresenting cells, is still rather limited.
Material & Methods In this project*, testicular inflammatory infiltrates were characterized immuno-histochemically in order to identify T-lymphocytes (CD3+/45R0+/CD45RA+),
B-cells (CD20+/CD45RA+), macrophages
(CD68+), dendritic cells (CD11+/S100+) and
mast cells (tryptase+). In addition, the pattern
and degree of spermatogenic impairment
was analyzed in areas affected by inflammatory reactions compared to non-inflamed tissue. With regard to putative functions of participating immune cells, gene expression
profiles of cytokines were determined using
qualitative and quantitative RT-PCR after
RNA extraction from de-paraffinized tissue
sections and cDNA synthesis.
Results Testicular biopsies obtained from
infertile men with focal or multi-focal inflammatory lesions revealed high numbers
of T- and almost absence of B-lymphocytes,
typically in peritubular and/or perivascular
localization. Affected or adjacent seminifer-
J Reproduktionsmed Endokrinol 2012; 9 (5)
363
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
ous tubules showed partial or complete loss
of germinal epithelium, thickening of the
lamina propria, or complete tubular fibrosis.
Few dendritic cells could be identified in the
proximity of the lymphocytic infiltrates,
whereas the occurrence of macrophages and
mast cells was not restricted to inflammatory
areas. Analysis of gene expression profiles
including both pro- and anti-inflammatory
cytokines unraveled significant expression
of TNF-α in inflammatory lesions compared
to non-affected areas of the same testis.
Similarly, expression of interleukin (IL)-1β,
IL-6, IL-12 (p35), and interferon-γ could be
detected.
Conclusion Pattern analysis of testicular inflammatory reactions seen in infertile men
provides a perspective for “functional” assessment of the participating immune cells.
Especially cytokine expression profiles
could help to elucidate, whether lesions are
of bacterial, viral, or autoimmune origin.
vestigated. Activation of caspase-8 (extrinsic apoptotic pathway), caspase-3/-6 (intrinsic apoptotic pathway), caspase-1 (pyroptosis pathway) and the presence of 180 bp
DNA fragments, all of which serve as indicators of the classical apoptotic pathway and
pyroptosis, were not observed in infected
testis. Notably, electron microscopical examination revealed degenerative features of
Sertoli cells (SC) in UPEC infected testis.
Furthermore, the passive release of high mobility group protein B1 (HMGB1), as an indication of the necrosis, was observed in infected testis.
Conclusion In summary, the findings indicate that UPEC infection causes the induction of an organized self-destruction cascade
termed programmed necrosis in the testis,
which may ultimately be the major mechanism contributing to impairment.
* Supported by LOEWE (excellence initiative of
the state government of Hessen, Germany) focus
group MIBIE (Male Infertility during Infection
and Inflammation).
 Postersession 2: Free Communications
P166
Necrosis is the Dominant Cell
Dead Pathway in UPEC Induced
Epididymo-orchitis Model and is
Responsible for Structural and
Functional Damage of Rat Testis
S. Bhushan1, Y. Lu1, S. Tchatalbachev2, M. Marconi3,
M. Bergman4, W. Weidner3, T. Chakraborty2,
A. Meinhardt1
1Institute for Anatomy and Cell Biology, Department
of Reproductive Biology; 2Institute for Medical Microbiology; 3Institute of Pediatric Urology and Andrology,
Clinic and Policlinic of Urology; 4Institute for Veterinary
Anatomy, Department of Histology, and Embryology,
Giessen, Germany
Introduction Bacterial infections of the
male genital tract result from ascending
canalicular infections of the male excurrent
ducts and thus could cause male infertility.
Uropathogenic Escherichia coli (UPEC) is a
relevant pathogen in urogenital tract infection.
Method & Materials To explore how testicular defenses react against UPEC infection, epididymo-orchitis model was established by injecting UPEC CFT073 into vas
deference in close proximity to the epididymis. Mimicking an infection ascending from
the urinary tract, in the testis UPEC bacteria
were found exclusively in the interstitial
space 7 days post infection. Tracer experiments revealed that the integrity of the
blood-testis and blood epididymis barrier
was intact 7 days post-infection indicating
that evasion of bacteria occurs probably intracellularly. In the testis, UPEC infection
resulted in impairment of spermatogenesis
by germ cell loss, damage of testicular somatic cells, a decrease in sperm numbers and
a significant increase in TUNEL (+) cells. To
investigate potential mechanism of germ cell
death, hall mark steps of apoptosis were in-
364
J Reproduktionsmed Endokrinol 2012; 9 (5)
P20
Eurycoma longifolia (Tongkat Ali)
as a Potential Herbal Supplement
for Physically Active Male and Female Seniors
R. Henkel, R. Wang, S. Bassett, T. Chen, N. Liu, Y. Zhu,
M. I. Tambi
University of the Western Cape, Department of Medical Bioscience, Bellville, South Africa
Tongkat Ali (Eurycoma longifolia; TA) is
known to increase serum testosterone levels
and alleviate aging males’ symptoms. Its
roots contain a wide variety of chemical
compounds including eurycomaside, tannins,
high molecular weight polysaccharides, glycoproteins, mucopolysaccharides and alkaloids of the quassinoid group. The androgenic effect of increased serum testosterone
is increased muscle mass resulting in increased potential for generating greater force
in the muscles, evidenced by enhanced
strength. Therefore, this study aimed at investigating TA as an ergogenic supplement
for elderly people.
13 male and 12 female physically active seniors (57–72 years) were supplemented with
400 mg TA extract daily for five consecutive
weeks. Treatment resulted in reported adverse side-effects.
After the treatment, hemoglobin, testosterone and dihydroepiandrosterone concentration, as well as the ratio of total testosterone/
cortisol and muscle force remained significantly lower in the females than in the males.
Hematocrit (46.2% vs. 47.8%) and erythrocyte count (4.7 ×106/mL vs. 4.9 ×106/mL) in
males increased slightly, but were significantly higher than in females. In both men
and women, treatment resulted in significant
increases in total (3.8 ng/mL vs 4.2 ng/mL;
p = 0.0090; and 0.3 ng/mL vs 0.5 ng/mL;
p = 0.0098, respectively) and free testosterone concentrations (5.2 pg/mL vs 8.4 pg/mL;
p = 0.0005; and 0.5 pg/mL vs 1.1 pg/mL; p =
0.0032, respectively) and muscular force
(46.0 kG vs 53.7 kG; p = 0.0375; and
29.6 kG vs 33.7 kG; p = 0.0641, respectively). Although significantly elevated after
the treatment, the testosterone levels (total
and free testosterone) in the female subjects
were still well within normal physiological
levels of 0.063–0.836 ng/ml and 1.0–8.5 pg/ml
respectively. The increase in free testosterone
in women is thought to be due to the significant (59.7 nmol/L vs 47.3 nmol/L; p < 0.0001)
decline in sex hormone binding globulin
concentrations.
The study affirms the ergogenic benefit of
TA for seniors, through enhanced muscle
strength.
P21
Eurycoma longifolia Extract at
Therapeutical Concentrations
does not Negatively Affect Human Sperm Functions in vitro
N. Erasmus, M. Solomon, K. Fortuin, R. Henkel
University of the Western Cape, Department of Medical Bioscience, Bellville, South Africa
Eurycoma longifolia (Tongkat Ali; TA) is a
Malaysian shrub used to treat various illnesses including male infertility. Considering that TA is also used to improve male fertility and no report regarding its safety has
been published, this study investigated the
effects of a patented, aqueous TA extract on
various sperm functions.
Semen samples of 27 patients and 13 fertile
donors were divided into two groups,
washed and swim-up prepared spermatozoa,
and incubated with different concentrations
of TA (1, 10, 20, 100, 2000 µg ml–1) for 1 hr
at 37°C. A sample without addition of TA
served as control. After incubation with TA,
the following parameters were evaluated:
vitality (eosin test), total and progressive
motility (CASA), acrosome reaction (triple
stain technique), sperm production of reactive oxygen species (ROS; dihydroethidium
test; DHE), and sperm DNA fragmentation
(TUNEL assay).
For washed spermatozoa, significant dosedependent trends were found for vitality, total motility, acrosome reaction and sperm
ROS production. However, these trends
were only significant if the highest concentrations were included in the calculation. For
progressive motility of washed spermatozoa,
a marked (p = 0.0770) drop could only be
observed at the highest TA concentration.
Contrary, the increase in the percentage of
acrosome-reacted spermatozoa with increasing TA concentrations is highly significant
(p < 0.0001), and a significant difference
(p = 0.0069) to the control could even be recorded at 20 µg TA per ml. For swim-up
spermatozoa, only ROS-positive swim-up
spermatozoa showed a biphasic relationship
with its lowest percentage at 10 µg ml–1
but yet no significance could be observed
(p = 0.9505). For sperm DNA fragmentation,
no influence of TA could be observed, nei-
ther for washed nor for swim-up prepared
sperm.
Results indicate that the Tongkat Ali extract
has no deleterious effects on sperm functions at therapeutically used concentrations
(<2.5 µg ml–1).
P22
Algorithm for the Surgical Management of Obstructive Azoospermia
K. Zaki Shaeer, O. Shaeer
Faculty of Medicine, Cairo University, Andrology,
Cairo, Egypt
Question Evaluation of a protocol for the
surgical management of obstructive azoospermia to help identify and resolve possible
multiple site obstruction.
Methods 80 infertile males with obstructive
azoospermia were enrolled in this study. Intra-operative vasography pointed the site (or
sites) of obstruction. According to the algorithm, single or multiple-site obstruction
were managed by various combinations of
epididymovasostomy, vasovasostomy, transurethral resection of the ejaculatory ducts
and pelvi-scrotal vasovasostomy.
Results 92.5% of cases (74 out of 80 patients) showed appearance of spermatozoa in
semen following surgery. The average count
was 14 million/ml and the average motility
was 40%. Simultaneous multiple-site obstruction was detected and managed in 32
out of 80 patients (40%)
Conclusion The humble success rate for
surgical repair of seminal tract obstruction
may be attributed to missing or failure to
manage multiple-site obstruction, which appears to be common. The proposed algorithm guides the surgeon to full restoration
of patency of the seminal tract along its
whole length based on proper diagnostic and
corrective measures.
The aim of this study was to compare the influences of TP and EB on testes development
and FSH level depending on whether sex
hormones were administered transiently during the initial 5 pnds, or continuously until
pnd 15.
Material & Methods Male pups were daily
injected with either 12.5 µg of EB or 2.5 mg
of TP transiently from the day of birth until
pnd 5, followed by daily injections of solvent until pnd 15 (tEB and tTP, respectively). Other pups were treated continuously from the day of birth until pnd 15 (cEB
and cTP, respectively). Control group received solvent. At autopsy, on pnd 16, blood
was taken for hormone measurements and
testis for investigations of seminiferous tubule morphometry, cell number, proliferation and apoptosis.
Results Testis weight, tubule length, Sertoli
and germ cell numbers were reduced after all
treatments together with increased seminiferous epithelium cell apoptosis. In addition,
c-EB inhibited premeiotic germ cell development together with further augmentation
of cell apoptosis despite increased FSH secretion and proliferation of spermatogonia.
In turn, c-TP reduced meiotic spermatocyte
number with no influence on FSH, but together with inhibition of seminiferous tubule
lumen formation, indicative of Sertoli cell
adluminal secretion.
Conclusion
1. First 5 pnds in rats, the period corresponding to spermatogenic onset, appear to be susceptible to the inhibitory effects of sex steroids on testis growth via an increase of seminiferous epithelium cell apoptosis.
2. Hormone-specific inhibitions occurred after exposure to sex steroids during spermatogonial development. Estradiol inhibits germ
cell compartment via further augmentation
of cell apoptosis, whereas testosterone reduced meiotic cell number via inhibition of
Sertoli cell function.
P23
Common and Hormone-Specific
Inhibitory Effects of Sex Steroids
on Testes Development in the Rat
P24
FGFR3 as a Potential Marker for
Human Spermatogonial Stem
Cells
R. Walczak-Jedrzejowska, J. Slowikowska-Hilczer,
E. Oszukowska, K. Marchlewska , E. Filipiak , K. Kula
Department of Andrology and Reproductive Endocrinology, Medical University of Lodz, Poland
K. von Kopylow1, A.-N. Spiess1, W. Schulze1, H. Staege2,
H. Will2, C. Kirchhoff1
1Andrology, University Hospital Hamburg-Eppendorf,
Hamburg; 2Heinrich Pette Institute, Leibniz Institute
for Experimental Virology, Hamburg, Allgemeine
Virologie, Hamburg, Germany
Introduction Testosterone and estradiol
may positively affect different aspects of testis development, but inhibition of follicle
stimulating hormone (FSH) secretion by
these hormones has negative impact on the
testis. In rats administration of testosterone
propionate (TP) or estradiol benzoate (EB)
since the day of birth inhibits FSH secretion
and testis growth on postnatal day (pnd) 6.
However, when TP was administered later
during first spermatogonial development
(between 5 and 15 pnds) neither secretion of
FSH nor testes growth were affected. In turn,
EB may inhibit testis growth with no influence on FSH in this period.
Introduction Human type A spermatogonia
(SPG) contain a stem cell population (SSCs).
Knowledge concerning their molecular identity and the regulatory mechanisms involved
in the transition from quiescent to proliferative state is still limited. Using microarray
analysis, we previously listed more than 200
potential candidates for human SPG-specific
markers, i.e. the Fibroblast Growth Factor
Receptor 3 (FGFR3). We and others have
shown that the FGFR3 protein in humans is
expressed on the cell surface of SPG located
along the basal lamina of the seminiferous
tubules. FGFR3 as a candidate human spermatogonial stem cell marker protein may facilitate isolation and enrichment of human
stem and/or progenitor SPG and could enable clinical application of these cells in the
future. This work was performed to characterize the FGFR3-positive SPG on the protein level and to test isolation possibilities.
Material & Methods 3 FGFR3 antibodies
directed against different epitopes of FGFR3
were utilized for immunofluorescence multiple staining on cross sections and whole
mount preparations of human seminiferous
tubules to characterize FGFR3-positive SPG
and to estimate the sizes of the FGFR3-positive spermatogonial cell clones. For the isolation of the FGFR3-positive SPG, Magnetic-Activated Cell Sorting (MACS) via an
antibody against the extracellular epitope of
the protein was employed.
Results Tested FGFR3 antibodies produced
largely superimposed staining patterns within cytoplasmic vesicles and on the cell surface of SPG. Using the nucleolus marker
C23 (Nucleolin) in a co-staining, FGFR3
was primarily detected in A type SPG comprising the classical described A dark and A
pale spermatogonial subtypes. Additionally,
FGFR3 was found as co-expressed with the
pluripotency marker Undifferentiated embryonic cell Transcription Factor 1 (UTF1)
in a subpopulation of the UTF1-positive
SPG. Proliferating (KI-67+) and differentiating (DMRT1+) SPG were FGFR3-negative. Whole mount preparations revealed
FGFR3 expression predominantly in pairs or
quadruplets of spermatogonial cells. FGFR3MACS selected cells could be positively
stained for the UTF1 protein.
Conclusion FGFR3 expression in non-proliferating and non-differentiating type A
SPG including the A dark subtype, co-expression with UTF1 and the organization of
FGFR3-positive SPG in small cell clusters
could be indicative for an “early state” of
these SPG and hence their stem cell potential. Optimization of the isolation protocol
could form the basis for cultivation, xenotransplantation and for prospective medical
application of this cell type.
P25
Effects of Flutamide on the Sperm
Membrane Integrity, Mitochondrial
Diaphorase Activity, and Sperm
Morphology in Adult Boars: in
vivo and in vitro Approach
M. Lydka1, M. Piasecka2, D. Gaczarzewicz3, B. Bilinska1
1Department of Endocrinology, Jagiellonian University in Krakow; 2Pomeranian Medical University,
Laboratory of Histology and Biology of Development,
Szczecin; 3West Pomeranian University of Technology, Department of Animal Reproduction, Szczecin,
Poland
Introduction Androgens are crucial for mam-
malian sperm differentiation however their
role in biology of male gamete is not still defined. Recently, we have reported morphofunctional alterations in the boar epididymis
J Reproduktionsmed Endokrinol 2012; 9 (5)
365
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
as a consequence of flutamide exposure [1].
The aim of the study was to test whether
flutamide or its metabolite through the blockage of androgen receptor could influence reproductive capability of the boar sperm.
Material & Methods In vivo effects of
flutamide (50 mg/kg b. w.) on sperm morphology were investigated by electron microscopic observations [2]. In vitro effects of
5, 50, 100 µg of OH-flutamide (2 h and 24 h
incubation time) on sperm membrane integrity were measured by LIVE/DEAD Sperm
Vitality kit, while those on sperm membrane
stability and mitochondrial diaphorase activity were examined using Merocyanine540
and NADH tests, respectively [3].
Results The incidence of abnormal spermatozoa increased significantly in flutamidetreated boars compared to controls. In an in
vitro approach, low dose of OH-flutamide for
2 h appeared less effective in altering the
sperm membrane integrity and its stability
than two higher doses used. No further decrease in sperm membrane integrity was
found when the effect of anti-androgen lasted
for 24 h. On the other hand, sperm membrane
destabilization and mitochondrial diaphorase
activity were strengthened after 24 h.
Conclusion The alterations in functional
parameters of the sperm correlating with the
sperm morphology provide novel data on the
sperm sensitivity to anti-androgen action.
Supported by a grant NN303816640 from the
Ministry of Science and Higher Education
References:
1. Lydka M et al. Acta Vet Scand 2011; 53: 12.
2. Bartoov B et al. Arch Androl 1999; 42: 161–
77.
3. Lydka M et al. Reprod Dom Anim 2001. doi:
10.1111/j.1439-0531.2011.01935.x
P26
Prenatal and Neonatal Exposure
to Flutamide Alters Androgen Receptor Expression in the Prostate
of Adult Boars
A. Hejmej, M. Kotula-Balak, K. Chojnacka, M. Lydka,
B. Biliñska
1Institute of Zoology, Jagiellonian University, Department of Endocrinology, Krakow, Poland
Introduction It is well established that an-
drogens play a central role in normal prostatic growth and the maintenance of tissue
homeostasis, but they are also responsible
for development of prostate disease [1].
Complete interruption of androgen signalling in utero causes prostate abnormalities or
agenesis [2]. However, effects of reduced
availability of androgen receptor during different stages of reproductive system development on prostatic cells function in adult
males are not fully characterized. Thus, in
the present study we examined prostate morphology and androgen receptor (AR) expression in adult boars exposed prenatally or
neonatally to an antiandrogen flutamide.
Material & Methods Flutamide was administered to pregnant gilts at 50 mg/kg/day during the period of sex differentiation: gesta-
366
J Reproduktionsmed Endokrinol 2012; 9 (5)
tional days 20–28 (GD20) or 80–88 (GD80)
and to male offspring from postnatal day 2–
10 (PD2) and from day 90–98 (PD90). Prostates were collected from 270 day-old animals. Routine histology was performed using hematoxylin-eosin staining. The expression and localization of AR were analyzed
using qRT-PCR, Western blotting and immunohistochemistry, respectively.
Results Morphological examination demonstrated that flutamide exposure at GD20
and PD2 resulted in decreased prostatic alveoli size and stromal volume, as well as reduction of secretions in the lumen. Alveoli
were often lined with cuboidal rather than
columnar epithelium.
In the prostates of flutamide-exposed boars,
expression of AR was decreased at mRNA
and protein level when compared to the control group. Decrease was most significant in
GD20 and PD2 groups. Immunostaining for
AR was localized to both epithelial and stromal cells of control and flutamide-exposed
pigs. In the epithelial compartment, the nuclei of secretory cells were strongly stained,
whereas the nuclei of basal cells exhibited
weaker staining. In the stroma, immunostaining of variable intensity was detected.
The number of AR positive stromal cells was
reduced following flutamide treatment, especially in GD20 and PD2 pigs.
Conclusion Our findings indicate that high
level of androgen action and availability of
androgen receptor during early gestational
and neonatal periods is essential for the
maintenance of normal prostate phenotype
in adult boars. Moreover, decreased AR expression in the stromal compartment suggest
that flutamide-induced alterations in adult
prostate may result directly from disruption
of androgen-dependent functions of stromal
cells.
Supported by grant 0172/IP1/2011/71 (Iuventus
Plus Programme from the Ministry of Science
and Higher Education).
References:
1. Cunha GR, et al. J Steroid Biochem Mol Biol
2004; 92: 221–36.
2. Goto K, et al. J Toxicol Sci 2004; 29: 517–34.
3. Zhou X. J Androl 2010; 31: 235–43.
P27
Effects of a Murine Germ CellSpecific Knockout of Connexin 43
on Connexin Expression in Testis
and Fertility
S. Günther1, D. Fietz1, K. Weider2, M. Bergmann1,
R. Brehm2
1Institut für Veterinär-Anatomie, -Histologie und -Embryologie, Giessen; 2Anatomisches Institut, Hannover,
Germany
Introduction Connexins (Cx) are gap junc-
tional proteins facilitating direct intercellular
communication. In rodent testis, Sertoli cells
(SC) and germ cells (GC) synthesize amongst
others Cx43 connecting by the way SC with
SC and SC with different generations of adjacent GC. The SC-specific knockout (KO)
of Cx43 (= SCCx43KO) was shown to pre-
vent initiation of spermatogenesis, and male
mice were infertile. In the present transgenic
mouse model, we intend to investigate functions of Cx43 especially in GC using the Cre/
loxP-recombination system by elucidating
the consequences of its KO on testicular
Cx26, 33, 43 and 45 expression and fertility.
Material & Methods Establishing a conditional GCCx43KO mouse model: Transgenic
mice containing the Cx43 gene surrounded
by loxP sites were mated with transgenic
mice expressing the Cre gene under the control of the GC-specific Tissue Non-Specific
Alkaline Phosphatase (TNAP) promoter. In
ovaries and testes, the Cx43 gene was specifically deleted in GC. Genotypes were determined by Cre- and TNAP-PCR, homozygous GCCx43KO mice were mated with
wildtype
(WT)
and
homozygous
GCCx43KO mice to test their fertility. Immunohistochemical analysis, RT-qPCR and
Western blots of different aged KO and WT
mouse testes homogenates were performed
to investigate the distribution of Cx mRNA
and protein.
Results A total of three male homozygous
and 3 male WT animals could be evaluated,
aged 19 days (pubertal), 131 days (adult) and
232 days (adult). Three female GCCx43KO/were only used for fertility survey. The
adult male and all female KO mice have been
mated and proved their fertility. Litter sizes
were normal. Immunohistochemical analysis
of testes of different aged homozygous mice
revealed normal spermatogenesis and a reduced Cx43 immunoreaction. RT-qPCR and
Western blots showed a downregulation of
Cx43 mRNA and protein in KO mutants, a
nearly unchanged expression of Cx26, Cx33
and Cx45 mRNA in pubertal and adult KO
mice but an increase of Cx45 protein in adult
GCCx43KO–/– mice.
Conclusion Our data suggest that persistent
spermatogenesis and fertility in GCCx43KO–/–
mice does not rely on GC-specific Cx43 expression. A selective loss of Cx43 in GC may
be compensated by the persistence of other
tubular Cx like Cx26 or Cx45 and a possible
interaction between (1) Cx45 in both GC and
SC, (2) Cx45 in GC and Cx43 in SC or (3)
Cx26 expressed both in GC and SC. The precise cellular localization of these Cx as well
as the demonstration of functional gap junctional intercellular communication between
GC and SC remains to be investigated.
P28
The Effect of Treatment with Antioxidants/Vitamins/Aminoacids
on Semen Quality in Idiopathic
Infertile Males
M. Buividaite, J. Erenpreiss
Riga Stradins University, Andrology Laboratory, Riga,
Latvia
Question Is the treatment with antioxidants/
vitamins/aminoacids able to improve semen
quality in idiopathic infertile males; and
which treatment regimen is the most effective?
7th ECA-Congress – Abstracts
Acknowledgement This publication is supported
by the “Development of International Collaboration of Riga Stradins University” project No.
2010/0200/2.1.1.2.0/10/APIA/VIAA/006.
P29
Androgen Signalling Disruption
during Prenatal and Neonatal Period affects Leydig cell Function in
Adult Boar
B. Biliñska, A. Hejmej, M. Kotula-Balak, M. Lydka
Institute of Zoology, Jagiellonian University, Department of Endocrinology, Krakow, Poland
Introduction Fetal and neonatal periods are
crucial for fertility in adult life, as reproductive system development and programming
of the hypothalamus-pituitary-testicular axis
occur during these periods [1]. It has been
reported that fetal hormonal disruption induced by anti-androgens gives rise to reproductive function impairment in adulthood
[2]. However, the precise mechanisms of
these alterations are still unclear.
In order to determine the role of androgen
receptor signalling during fetal and neonatal
period in porcine Leydig cell function, we
focused on steroid hormones production and
expression of aromatase and luteinizing hormone receptor (LHR) in testes of flutamideexposed pigs. In addition, we measured
plasma concentrations of gonadotropins in
adult boars.
Material & Methods Flutamide, an androgen receptor antagonist, was administered
(50 mg/kg/day) into pregnant gilts during
gestational days 20–28 (GD20) and 80–88
(GD80), and into male piglets on postnatal
days 2–10 (PD2). Flutamide- and vehicletreated (control) boars were maintained under identical conditions until 270 days of age
when they were slaughtered. Testes and blood
samples were collected and used for qRTPCR, Western blotting, immunohistochemical and radioimmunological analyses.
Results In flutamide-exposed boars, especially those of PD2 males, testosterone concentrations were reduced significantly in
comparison to those of control animals. Reduced testosterone production in response to
flutamide exposure appeared to be related to
changes in testosterone metabolism, as demonstrated by increased aromatase mRNA,
protein expression and elevated estradiol
concentrations. Moreover, impaired Leydig
cell responsiveness to luteinizing hormone
(LH) was indicated by the decreased expression of LHR. No significant effect of flutamide
was found on LH and follicle-stimulating
hormone (FSH) concentrations.
Conclusion Taken together, our data indicate that flutamide when administered during prenatal or neonatal period have longterm effect on Leydig cell function, leading
to androgen-estrogen imbalance. Leydig cell
failure was most evident in adult boars neonatally exposed to flutamide suggesting that
androgen action during neonatal development is of pivotal importance for the differentiation and function of porcine adult
Leydig cell population.
Supported in parts by grant 0172/IP1/2011/71
(Iuventus Plus Programme from the Ministry of
Science and Higher Education) and by grant DS/
MND/WBiNoZ/IZ/3/2011. Financial support of
congress attendance to B. B. from the Polish
Academyof Sciences is kindly acknowledged.
References:
1. Sharpe RM. Philos Trans R SocLond B Biol
Sci 2010; 365: 1697–712.
2. Gray LE Jr, et al. Int J Androl 2006; 29: 96–
104.
P30
Aromatase, Androgen and Estrogen Receptors in Bank Vole Spermatozoa
M. Kotula-Balak, M. Lydka, A. Hejmej, B. Biliñska
Institute of Zoology, Jagiellonian University, Department of Endocrinology, Kraków, Poland
Introduction Spermatoza represent a highly
specialized cell type that transport a singlecopy haploid genome to the site of fertilisation. In order to condense DNA, many of the
proteins of the conventional somatic chromatin are removed. Changes in the sperm
membrane and cytoplasm take place during
transit through epididymis and female genital tract by the modifications in the composition and cellular localization of proteins [1].
However, the function of most of the proteins that are present in mature spermatozoa
is not fully understood.
It is widely accepted that sex hormones play
a crucial role in proper germ cell differentiation although implication of androgen/estrogen signalling in the biology of mature male
gametes is still to be defined. Till now, only
the presence of estrogen receptor β (ERβ)
has been demonstrated in elongating spermatids and spermatozoa of mice and rats [2,
3].
In light of these data, it seems interesting to
investigate whether androgen receptor (AR),
estrogen receptor α (ERα) and ERβ, as well
as aromatase, are present in spermatozoa of
seasonally breeding rodent, the bank vole.
Materials & Methods Spermatozoa were
isolated as described in detail [4]. Immuno
fluorescent assay and Western blot were performed using primary antibodies against: (i)
human AR (Santa Cruz Biotechnology,
USA); (ii) human placental P450 aromatase
(a gift from Dr. Y. Osawa, Hauptman-Woodward Medical Research Institute, USA); (iii)
human ERα (Dako, Denmark); (iv) human
ERβ (Serotec, UK). Immunohistochemical
results were analyzed quantitatively [5].
Results Our study provides evidence that
aromatase, AR, as well as the ERα and ERβ,
are present in bank vole spermatozoa. We
demonstrated the region-specific localization of these proteins using confocal microscopy. Immunoreactive aromatase was observed in the proximal head region and in
both the proximal and distal tail regions,
whereas steroid hormone receptors were
found only in the proximal region of the
sperm head. Western blot analysis confirmed
the presence of these proteins in sperm lysates.
Conclusion In the present study we demonstrated for the first time that bank vole spermatozoa are both a source of estrogens and a
target for steroid hormone action. Moreover,
the presence of aromatase and steroid hormone receptors in the bank vole spermatozoa
clearly indicate a potential role of these proteins during capacitation and/or the acrosome reaction.
Supported by a grant N N303816640 from the
Ministry of Science and Higher Education.
J Reproduktionsmed Endokrinol 2012; 9 (5)
367
ECA – Abstracts
Methods 109 males from infertile couples
with decreased semen quality (oligo- and/or
astheno- and/or teratozoospermia) with excluded evident causes for infertility (normal
testicular volume, normal FSH and testosterone levels, no varicocele, excluded urogenital infections) were included into the study.
They were randomly assigned into 2 treatment
groups: Group I (n = 52) received commonly
used vitamin/antioxidant combination with a
daily dose of 1000 mg vitamin C, 800 mg
vitamin E, 200 µg selenium and 1000 mg Larginine for 2 months. Group II (n = 57) received more complex treatment including a
daily dose of 1000 mg vitamin C, 800 mg
vitamin E, 200 µg selenium, 3.5 mg vitamin
B6, 9 µg vitamin B12, 800 µg folic acid, 40 mg
zinc, 1,000 µg copper, 1000 mg L-arginine,
80 mg N-acetylcysteine, 440 mg L-carnitine,
170 mg omega-3-fatty acids, and 15 mg coenzyme Q10 for 2 months. Semen analyses
were performed according to WHO guidelines (1999) before and after 2 months treatment by the same technician. Sperm concentration, progressive motility and normal
morphology before and after the treatment
were compared using the univariate linear
regression analysis, adjusted for the abstinence time.
Results In Group I mean numbers (± SD) of
sperm concentration (×106/ml), progressive
motility (%) and normal morphology (%) before and after the treatment were 54.6 (± 31),
46.9 (± 14), 6.7 (± 6), and 73.1 (± 55), 49.1
(± 16), 7.4 (± 6), respectively, reaching statistically significant improvement only in
sperm concentration (p = 0.04). In Group II
all parameters showed significant improvement after the treatment: sperm concentration from 40.7 (± 29) to 66 (± 56), p = 0.003;
motility from 41.8 (± 18) to 48.6 (± 18),
p = 0.048; normal morphology from 3.9 (± 3)
to 6.8 (± 4), p < 0.01.
Conclusion Our study shows that only complex treatment with the variety of vitamins,
antioxidants, trace elements, aminoacids and
other micronutrients that are essential for the
spermatogenesis can provide improvement
in semen parameters in idiopathic male infertility. Extended placebo controlled studies
are necessary to confirm these results.
ECA – Abstracts
7th ECA-Congress – Abstracts
References:
1. Anand-Ivell R, Ivell R. Biochem J 2001; 436:
e3–e5.
2. Sasso-Cerri E. Reprod Biol Endocrinol 2009;
7: 127.
3. Sebkova N et al. Reproduction 2001; 143:
297–307.
4. Hejmej A et al. Int J Androl 2012; 35: 340–52
5. Styrna J et al. Reprod Fertil Dev 2002; 14:
101–8.
P31
Aromatase and Estrogen Receptors Expression at Complete Spermatogenesis and in Sertoli cell
only Syndrome
E. Oszukowska1, M. Brys2, E. Forma2, K. Marchlewska1,
R. Walczak-Jedrzejowska1, J. Slowikowska-Hilczer1,
K. Kula1
1Andrology & Reproductivce Endocrinology; 2Department of Cytobiochemistry, Medical University of Lodz,
Poland
Estrogens are produced locally within testes
in high amounts with an involvement of an
enzyme aromatase (CYP19), that converts androgen into estrogen. Estrogens signalling in
the cell is mediated by estrogen receptors α
and β (ERα and ERβ). Wide distribution of
CYP19 and ERs immunohistochemical staining within human testes has been reported.
Uncertain knowledge concerns Sertoli cell
only syndrome (SCO), where unchanged
ERα immunostaining has been reported, not
confirmed by Western-blot analysis.
The aim of this study is to investigate the
expression of CYP19 and ERs in human testicular biopsies revealing complete spermatogenesis (CS) and SCO.
Material & Methods The archival human
testicular biopsies taken from men diagnosed because of infertility were investigated.
Cases with CS (n = 21) and SCO (n = 30)
were selected. Immunohistochemistry against
CYP19 and ERα, ERβ were performed to visualize the site of antigen in testis. The expression of CYP19 and ERs genes were performed from the same archival samples
using real-time quantitative PCR. Relative
copy number values (number of copies of
CYP19 or ERs mRNA per 1,000 copies of
GAPDH mRNA) were calculated.
Results In CS cell nuclei immunohistochemical localisation of CYP19, ERα and ERβ
were found in spermatocytes, round spermatids, Sertoli and Leydig cells, whereas spermatogonia revealed only ERβ (lack of
CYP19 and ERα). Cytoplasmic localisation
of ERα and ERβ was present in both Sertoli
and Leydig cells, but only Leydig cells revealed expression of CYP19.
In SCO Sertoli cell nuclei the labeling of
CYP19 and week staining of ERβ were
present, whereas cytoplasm was reach of
ERα. Leydig cell number was increased in
SCO in association with pronounced expression of CYP19 and ERα in both nuclei and
cytoplasm.
Using real-time quantitative PCR, the expression of CYP19 did not differ between
groups, but amounts of ERα and ERβ was
significantly higher in CS compared to SCO
(Fig. 12). Moreover a significant negative
correlation between the amount of CYP19
and ERβ was observed in SCO (–0.38).
Conclusion Immunocytochemistry revealed
wide distribution of CYP19 among Sertoli
and Leydig cells, as well as in germ cells except for spermatogonia.
Equal quantities of CYP19 in CS and SCO
may be due to increased Leydig cell number
in SCO.
Spermatocytes and round spermatids are
reach of ERs and hence reduced expression
of ERs in SCO might be due to lack of germ
cells.
Spermatogonia express ERβ exclusively what
suggest that ERβ-depended pathway plays
critical role in the regulation of premeiotic
steps of spermatogenesis by estrogen.
P32
Transient Pubertal Administration
of FSH Together with Triiodothyronine Produces Quantitative Reduction of Spermatogenesis and
Endocrine Function of the Testes
in Adulthood
K. Marchlewska, K. Kula, R. Walczak-Jedrzejowska,
E. Oszukowska, E. Filipiak, J. Slowikowska-Hilczer
Department of Andrology and Reproductive Endocrinology, Medical University of Lodz, Poland
Introduction Follicle-stimulating hormone
(FSH) and triiodothyronine (T3) are known
regulatory factors of testicular development.
Figure 12. E. Oszukowska et al. Expression of CYP19 and ERs mRNA measured
by real-time PCR in complete spermatogenesis (CS) and Sertoli cell only syndrome (SCO). Mean ± SEM, a-p.
368
J Reproduktionsmed Endokrinol 2012; 9 (5)
We have recently shown that administration
of FSH together with T3 evoked regressive
changes in the seminiferous epithelium in
pubertal rats.
Question The aim of the study was to
evaluate the effects of pubertal administration of FSH and T3 on spermatogenesis and
endocrine function of the testes 35 days later
in adult rats.
Methods Newborn, male Wistar rats were
divided randomly into experimental groups
receiving daily subcutaneous injections
with: FSH 7.5 IU/animal (FSH group), or
100 mg T3/kg body weight (T3 group), or
both substances (FSH+T3 group), or vehicles in the same volume (control group-C).
A part of animals in each group was eutanised in the postnatal day (pnd) 16 of life
(progression of first meiosis), while the rest
were eutanised in the pnd 50 (appearance of
first spermatozoa). Each of 8 groups contained 10–17 males. Testes were removed
and immunohistochemical reactions were
performed using monoclonal antibody
against Vimentin, used as a Sertoli cell
marker. The ratio of Sertoli cells (vimentine
positive) number to germ cells (vimentine
negative) number in 20 subsequent seminiferous tubules cross-sections was and used to
estimate the quantitative efficiency of spermatogenesis.
Results On pnd 16, total Sertoli cell number
was increased to 156% of C after FSH given
alone and was reduced to 66% of C after T3
alone. On pnd 50 Sertoli cell number changed
to 128% and 63% of C after FSH and T3 respectively. Treatment with FSH+T3 did not
change Sertoli cell number in pubertal animals, but increased it to 238% of C in adult
rats.
On pnd 16 serum level of FSH and T3 increased in animals receiving the hormones.
In adult animals significant changes in hormonal pattern were observed only after
FSH+T3: blood level of FSH increased to
18.1 ± 5.9 ng/ml vs 8 ± 6.4 in C and testosterone declined to 1.5 ± 1 vs 3 ± 1.9 nmol/l in C,
suggesting impairment of gonadal function.
Hormone levels were not affected after separate treatments in adult rats.
An increase of the efficiency of spermatogenesis was observed only in pubertal rats
treated with T3 alone (1:0.88 vs 1:0.67 in C).
Qualitatively spermatogenesis advance expressed as a presence of spermatozoa, was
the same in all adult animals. However, after
FSH+T3 a significant reduction in the number of germ cells per Sertoli cell was present
in both young (1:0.32 vs 1:0.67 in C) and
adult animals (1:2.7 vs 1:4.5 in C). No difference was observed in other groups.
Conclusion Combined administration of FSH
and T3 during prepuberty decreased ratio:
Sertoli/germ cells, what was maintained until adulthood and produced impaired endocrine function of the testes.
7th ECA-Congress – Abstracts
P34
Reduced Numbers of Sertoli, Germ,
and Spermatogonial Stem Cells in
Impaired Spermatogenesis
K. Reuter, J. Wistuba, J. Ehmcke, S. Schlatt
Centre of Reproductive Medicine and Andrology
(CERA), Muenster, Germany
L. Konrad, M. Borgers, M. Wolter, A. Hentrich ,
A. Stammler, M. Bergmann, S. Kliesch
Zentrum für Frauenheilkunde, Justus-Liebig-University Giessen, Germany
Introduction Spermatogenic differentiation
requires support of somatic cell types, presence of extracellular matrix components, endocrine signalling, as well as a defined spatial arrangement of the different cell types.
Previous studies on in vitro differentiation of
male murine germ cells in three dimensional
culture approaches attempted to resemble
these requirements and could demonstrate
differentiation of germ cells into morphologically mature spermatozoa. Here, the
colonization of testicular cells of rats in a
three dimensional artificial collagen sponge
scaffold was analyzed focusing on survival
and reassembly of testicular cells in vitro.
Methods Testicular cells obtained from
Sprague Dawley and eGFP (enhanced green
fluorescent protein) transgenic rats (10 dpp)
were isolated enzymatically and the single
cell suspension was transferred on collagen
sponges (Matricel, 5 × 1.5 mm). Colonization was observed using the life cell imaging
system (Pecon, Zeiss). 1.5 ×106 cells per
40 µl were added with a drop-on seeding
method to the scaffolds and the effect of
gonadotropines (hCG and r-hFSH per 5 IU/l)
was tested. The sponges were cultured in
DMEM high Glucose + Glutamax (GibcoInvitrogen) at 35°C and 5% CO2 in air. Colonized scaffolds were analyzed after defined
periods of culture by scanning electron microscopy (SEM), conventional histology and
immunohistochemistry. Additionally, testosterone and cAMP levels were determined
in the supernatants to check the functions of
Sertoli- and Leydig cells.
Results The drop-on seeding method enabled a subsequent colonization of testicular
cells across the entire scaffold. After two
days of culture reaggregation in terms of
cluster formation was observed. Size and
surface structure of cells indicate aggregation of different cell types. These small clusters indicate first signs of initiating tubulogenesis and were attached to the collagen fibres. They were found to survive for at least
nine weeks in vitro. Immunohistochemical
stainings indicate that those clusters contain
somatic and germ cells (germ cell marker:
VASA, spermatogonial marker: Lin28, peritubular cell marker: αSMA, Leydig cell
marker: 3βHSD). Measurements of cAMP
and testosterone indicate vital Sertoli cells
and steroidogenically active Leydig cells responding to gonadotropin stimulation.
Conclusions Testicular cells from rats obtained at 10 dpp are able to colonize artificial
collagen scaffolds and can be cultured for several weeks, during which they reassemble. In
further experiments we aim at systematic optimization of the seeding concentrations and
culture conditions and detailed analysis of the
reorganized cellular structures.
Introduction Investigation of male infertility relies on the appropriate classification of
impaired spermatogenesis. Besides mitosis,
meiosis, and differentiation of germ cells
also the functions of Sertoli cells are essential for male reproduction. In this study, we
precisely quantified Sertoli and distinct germ
cell types in azoospermic patients with defined spermatogenic defects. Our study provides a new method of categorizing spermatogenic defects.
Materials & Methods Testicular biopsies
(n = 110) were obtained from normogonadotropic obstructive or non-obstructive azoospermia and showed histologically normal
spermatogenesis (n = 33), hypospermatogenesis (n = 44) and maturation arrest at the
level of spermatocytes (n = 33). To precisely
identify the cell types, we detected the following marker proteins by specific antibodies: androgen receptor for Sertoli cells,
UTF1 (undifferentiated embryonic cell transcription factor) for a subset of spermatogonia including stem cells, Smad3 for spermatocytes, histone H3 phosphorylated at serine
10 for meiotic divisions and CREM (cAMP
response element modulator) for round spermatids. At least 10 cross-sections per patient
were analyzed. Patients were classified into
three groups: mainly meiotic deficiencies
(reduced numbers of spermatocytes, meiotic
divisions, and spermatids), mainly „founder
pool“-related deficiencies (reduced numbers
of Sertoli cells, spermatogonia, and stem
cells) or both.
Results Remarkably, the numbers of Sertoli
cells, spermatogonia and a subset of spermatogonia including stem cells are significantly reduced in patients with spermatocytic maturation arrest, however, the strongest reduction was found in spermatid numbers. Patients with hypospermatogenesis
showed a significant reduction of spermatogonia but only modestly reduced numbers of
spermatocytes and spermatids. No correlation was found with age or obstruction. Interestingly, patients with maturation arrest
showed meiotic deficiencies (36%), while
the majority exhibited deficiencies in the
founder pool (58%). In contrast, patients
with normal spermatogenesis most often had
no deficiencies at all (45%) or founder poolrelated deficiencies (33%) but an apparently
normal meiosis.
Conclusions In conclusion, by antibodybased quantification of Sertoli and germ
cells, we found that patients with spermatocytic maturation arrest showed besides mitotic and meiotic defects also additionally a
significant reduction in Sertoli, spermatogonial, and stem cell numbers. Thus, analysis
of meiotic defects should consider also defi-
ciencies in the founder pool. Our findings
pave the way to novel routes of investigation
into the role of Sertoli cells and spermatogonial stem cells in male infertility.
P35
Sdf-1 Mediated Response of Germ
Cell Loss in Male Mouse Testis
After Cytotoxic Treatment
B. Westernströer1, N. Terwort1, S. Schlatt1, J. Ehmcke2,
J. Wistuba1, N. Kossack1
1CeRA; 2Cental Animal Facility of the Medical Faculty,
Muenster, Germany
Introduction The chemokine Sdf-1 (Stromal cell-derived factor-1α) and its receptor
Cxcr4 (CXC chemokine receptor 4) are constitutively expressed by most organs. Furthermore, it is known that an up-regulation
of Sdf-1 expression occurs after injury and
stem cell loss. This up-regulation of Sdf-1
facilitates the recruitment of Cxcr4+ adult
stem cells to the injured site and thereby aids
organ regeneration. Apart from that, it has
been shown, that the Sdf-1/Cxcr4 interaction
is required for the colonization of the gonads
by primordial germ cells in the mouse fetus.
In the adult mouse testis Sdf-1 has been
shown to be expressed in the somatic Sertoli
and Leydig cells whereas Cxcr4 is expressed
in germ cells. However, it is hitherto unknown whether an up-regulation of Sdf-1
can be detected after the loss of germ cells
which would indicate a role of Sdf-1 and
Cxcr4 in the regeneration process. The aim
of this study was therefore to investigate the
expression patterns of Sdf-1 and Cxcr4 following germ cell loss in adult mouse testes.
Material & Methods Adult NMRI mice
were either given a single injection (i. p.) of
busulfan (38 mg/kg) or dimethylsulfoxid
(DMSO, control treatment). On days 1, 3, 7,
21 and 28 after treatment, 10 animals per
time point and per treatment were sacrificed.
Determination of testis weights was the first
endpoint measurement. Furthermore, realtime PCR was used to perform a relative
quantification of Sdf-1 and Cxcr4 in the testicular tissues. In addition, the expression of
the germ cell marker genes Ddx4 and Lin28a
and the somatic marker gene Erm was determined.
Results Testis weight decreased following
busulfan treatment (average weight: 1d [93 mg],
3d [85 mg], 7d [90 mg], 21d [62 mg] and 28d
[42 mg]). In addition, qPCR analyses revealed
decreasing transcript levels of the germ cell
marker genes Lin28a & Ddx4 (2-fold). Interestingly, while constant expression levels
were detected for the somatic marker gene
Erm, the expression levels of the chemokine
Sdf-1 and its receptor Cxcr4 increased significantly (4- and 1-fold) within 28 days after treatment. DMSO treatment showed no
effect on transcript levels of all investigated
marker genes.
Conclusion In agreement with previous reports, our results show that busulfan treatment leads to a reduced testis weight in adult
mice which is due to the loss of germ cells.
J Reproduktionsmed Endokrinol 2012; 9 (5)
369
ECA – Abstracts
P33
Three Dimensional Culture of Rat
Testicular Cells in Collagen
Sponges
ECA – Abstracts
7th ECA-Congress – Abstracts
Apart from that, we could show for the first
time that the transcript levels of Sdf-1 and
Cxcr4 increased significantly following testicular injury and germ cell loss whereas the
expression of other somatic marker genes remained constant. The next step will be to localize these proteins in the testes using immunohistochemistry. In summary, these data
indicate that the Sdf-1/Cxcr4 interaction
contribute to the recovery of spermatogenesis after cytotoxic treatment.
P36
Human Sertoli cells Produce High
Amounts of Acetate that is Under
Strict Hormonal Control
M. Alves1, S. Socorro1, J. Silva2, A. Barros3, M. Sousa4,
J. Cavaco1, P. F. Oliveira1
1Health Sciences Research Centre (CICS-UBI), Faculty
of Health Sciences, Covilhã; 2Centre for Reproductive
Genetics Alberto Barros; 3Department of Genetics,
Faculty of Medicine; 4Institute of Biomedical Sciences
Abel Salazar (ICBAS), Department of Microscopy,
Laboratory of Cell Biology, University of Porto, Portugal
Introduction Several important functions
for a successful spermatogenesis are dependent on Sertoli cells (SCs). Besides their
unique characteristics as support cells, they
produce essential cofactors and metabolites,
and are responsible for nurturing the developing germ cells. The continuous production
of lipids, phospholipids and proteins by germ
cells must require high amounts of metabolic
precursors. Thus, we hypothesized that hSCs
could produce acetate in a hormonally-regulated manner.
Material & Methods hSC-enriched primary
cultures were maintained in the absence of
insulin or in the presence of 17β-estradiol (E2)
or 5α-dihydrotestosterone (DHT). Acetate
production was determined by 1H-NMR.
mRNA gene expression levels of Acetyl CoA
hydrolase (ACoA Hyd) and Acetyl CoA synthase (ACoA Synt) were determined by RTPCR.
Results hSCs produced high amounts of acetate suggesting that this compound should
play a key role on the progression of spermatogenesis, namely as a metabolic precursor for the synthesis of cellular constituents.
In addition, acetate metabolism proved to be
under strict hormonal regulation. In the presence of E2 or DHT, hSCs produced different
amounts of acetate. While E2 treatment increased acetate production, increasing ACoA
Hyd gene transcript levels, DHT-treated
cells showed decreased acetate production,
differently modulating the ratio ACoA Hyd/
ACoA Synt. Surprisingly, insulin-deprivation completely suppressed acetate production/export and significantly decreased the
ACoA Hyd gene transcript levels.
Conclusions Taken together, these results
suggest that, although hSCs are primarily
described as lactate producers, the elevated
production of acetate deserves special attention, in order to clarify the mechanisms behind its hormonal regulation and its role on a
successful spermatogenesis.
370
J Reproduktionsmed Endokrinol 2012; 9 (5)
P37
Visualization of Sildenafil Effects
in Testis
C. Feuerstacke, S. Tasch, I. Schneider-Hüther,
J. Volkmann, G. Eichner , D. Müller, R. Middendorff
Institute for Anatomy and Cellbiology, Giessen,
Germany
Introduction In the human testis, myofibroblasts are the main cellular components of
the lamina propria of seminiferous tubules.
These cells are crucial for the transport of
immature sperm towards the epididymis. In
many cases of disturbed spermatogenesis,
the peritubular lamina propria is considerably thickened, with an increase of extracellular components, resembling fibrotic
changes in other organs. The second messenger cGMP (cyclic guanosine monophosphate) contributes to the regulation of contractile cell function in the testis. Sildenafil
(Viagra®), an inhibitor of cGMP-hydrolyzing PDE5, is used in an increasing number of
young patients to treat pulmonary hypertension. However, there is only scarce knowledge on PDEs (phosphodiesterases) in the
testis and on possible effects of PDE inhibition in male reproductive organs.
Material & Methods The expression pattern
of PDEs within the lamina propria was characterized using laser capture microdissection
(LCM) followed by RT-PCR analyses and
immunohistochemistry. Sildenafil effects were
analyzed by collagen gel assays in combination with video microscopy and in a rat model
after long-term treatment with sildenafil.
Relative amounts of PDE isoforms in human
isolated peritubular cells were investigated
by Real Time PCR.
Results PDE1A, PDE1B, PDE3B, PDE5A,
PDE9A and PDE10A isoforms were found
in the regular and thickened (fibrotic) lamina
propria. Use of additional primer pairs for
smooth muscle cells (α smooth muscle actin), Sertoli cells (anti-Müller hormone) and
germ cells (CatSperI) unequivocally showed
PDE5 expression also in germ cells. The
dual substrate PDEs PDE2A, PDE3A and
PDE11A were only detected in intratubular
cells of seminiferous tubules, but were absent from the isolated lamina propria. Different to the PDEs mentioned above PDE1C
was lacking in thickened lamina propria, but
could be found in the regular LP.
Involvement of PDE5A, the target of sildenafil, in contractility of seminiferous tubules
was revealed by newly developed collagen
gel-based assays in combination with video
microscopy both in rat and men. Sildenafil
induces a decrease contractile frequency.
Investigation of testis section from rats after
long-term treatment with sildenafil provided
no evidence for a pathological accumulation
of sperm in the lumen of seminiferous tubules and in the rete testis.
Conclusion Different PDEs including PDE5
are expressed in regular and fibrotic lamina
propria of human testis.
The PDE5 inhibitor sildenafil induces acute
effects on contractility of seminiferous tu-
bules. After long-term treatment with sildenafil no indication for pathological sperm
retention was detected.
P38
Visualization of Sildenafil Effects
in the Epididymis
A. Mietens1, S. Tasch1, I. Schneider-Hüther1, G. Eichner2,
D. Müller1, C. Feuerstacke1, R. Middendorff1
1Institute for Anatomy and Cell Biology, AG Signal Transduction; Mathematical Institute, Giessen, Germany
Introduction The transport of immotile and
immature sperm from the testis towards the
epididymis requires a well orchestrated action of smooth muscle cells of the epididymal duct. The drug sildenafil (Viagra®) elicits smooth muscle cell relaxation by inhibiting PDE5 which hydrolyses the intracellular
second messenger cGMP (cyclic guanosine
monophosphate). Since the drugs’ therapeutic use extends from the treatment of erectile
dysfunction to pulmonary hypertension, more
young patients are exposed sildenafil. Therefore, it is of particular interest to investigate
possible effects or side effects of sildenafil
on epididymal smooth muscle function.
Materials & Methods Human and rat epididymal tissue (including a model of longterm sildenafil exposure) was investigated
by Western blot, immunohistochemistry and
RT-PCR of laser-microdissected tissue
samples, protein preparations served to assess PDE activity. Rat epididymal duct segments were used to assess contractile function using time lapse videomicroscopy and
organ bath experiments.
Results PDE5, the target of sildenafil, is expressed in human and rat epididymis and localizes to the smooth muscle cell layer of the
epididymal duct in the caput, corpus and
cauda region and vascular smooth muscle
cells. RT-PCR of laser-microdissected epididymal smooth muscle or epithelial cells
confirmed the exclusive localization of
PDE5 to the smooth muscle layer of the epididymal duct.
As demonstrated in a PDE activity assay,
sildenafil interferes with the hydrolysis of
cGMP in a dose-dependent manner.
Organ bath studies with contraction force recordings reveal spontaneous and regular
contractions of mid-cauda segments of the
epididymis. Sildenafil decreases the contractile frequency similarly to ANP (atrial natriuretic peptide) or SNP (sodium nitroprusside) which are known to increase intracellular cGMP levels.
Time lapse video microscopy shows the
same contractility pattern in the more proximal epididymal duct segments which are not
suitable for organ bath studies.
In a rat model of long-term exposure to
sildenafil, PDE5 expression remained unaltered and acute effects of sildenafil in organ
bath studies were conserved.
Conclusion Visualization by video microscopy is a promising tool in investigating the
contractile function of the epididymal duct.
PDE5, the target of sildenafil, is exclusively
localized to contractile cells within the epididymal duct and sildenafil decreases epididymal contractile frequency. Long-term exposure to sildenafil neither changed PDE5
expression nor contractility of the epididymal duct and acute sildenafil effects were
conserved.
P39
Spermatogonial Stem Cells in
Marmoset Monkeys: Isolation and
Characterization in vitro
D. Langenstroth, N. Kossack, J. Gromoll, S. Schlatt
Centre of Reproductive Medicine and Andrology,
Muenster, Germany
Introduction The marmoset monkey is
widely used as a non-human primate model
in reproductive medicine. During its testicular development, germline cells differentiate
from primordial germ cells via gonocytes to
spermatogonial stem cells (SSCs). In the
newborn marmoset testis, gonocytes, which
express pluripotency markers at the protein
level, are still present. In contrast to that,
SSCs are the most undifferentiated germ
cells in the adult marmoset testis and it has
been shown that these cells do no longer express pluripotency markers. Thus we hypothesize that pluripotent stem cells can be derived from newborn, but not from adult marmoset testes. In this study we aimed to establish germ cell cultures from newborn and
adult marmoset testes and to determine their
differentiation status in vitro.
Materials & Methods Testes obtained from
newborn (n = 2) and adult (n = 3) marmosets
were enzymatically digested and plated onto
culture dishes. After 6 and 11 days the attached cells (AT) and the cells from the supernatant (SN) were separately analyzed by
quantitative real time PCR (qPCR) analyses
using marker genes for pluripotency (LIN28,
OCT3/4), germ cells (VASA) and somatic
cells (VIM, αSMA). In addition, cultures
were fixed after 6 and 11 days and analyzed
using immunohistochemical stainings. Both
methods were used to detect the proportion
of different cell types in the SN and the AT
fraction of the cell cultures after 6 and 11
days.
Results After 6 days of culture, some cells
were attached to the culture plastic, whereas
about 40% (newborn)/90% (adult) of testicular cells remained in the SN. Interestingly,
from 6–11 days the number of cells in the SN
increased from 120,000–275,000 in the newborn cultures, whereas it decreased from
3.1–1.8 million in the adult cultures. Preliminary qPCR analyses show an increased
expression of the pluripotency marker gene
LIN28 and the germ cell marker gene VASA
in the SN compared to the AT fraction of
newborn and adult cultures. In contrast to
that, an increased expression of the somatic
marker genes VIM and αSMA was detected
in the AT compared to the SN cell fraction
(newborn + adult, each n = 1). These results
indicate that germ cells remain in the SN,
whereas somatic cells mainly attach to the
culture plastic. Furthermore, our results suggest that the proportion of germline stem
cells within the germ cell fraction is higher in
the newborn, than in the adult cultures, but
further analyses will have to confirm this at
the RNA and the protein level.
Conclusion We showed that germ cells
from adult and newborn marmosets are enriched in the SN. However, it is obvious that
the putative germ cells from newborn marmosets exhibit a significantly higher proliferative activity, which is probably due to
their more undifferentiated status compared
to adult germ cells. In further experiments
we will aim to improve the culture conditions for the maintenance of germline stem
cells.
P40
Morphological, Immunohistochemical and Histochemical Study of
Rat Prostate under Immunosuppression
M. Sokolowska1, S. Sluczanowska-Glabowska2,
M. Piasecka1, K. Kedzierska3, K. Sporniak-Tutak4,
K. Ciechanowski3, M. Laszczynska1
1
Department of Histology and Developmental Biology;
2
Department of Physiology; 3Department of Nephrology, Transplantology and Internal Medicine, 4Department of Dental Surgery, Pomeranian Medical University, Szczecin, Poland
Introduction The usage of immunosuppressants in patients following the organ transplantation increases survival rate. The treatment with these agents reduces the risk of
rejection of transplanted organ. On the other
hand such an approach is related to numerous adverse effects. Immunosuppressants
may lead to generation of reactive oxygen
species (ROS). The consequence is oxidative
stress that can cause either apoptosis or necrosis in the cells. The previous studies describe the effects of particular immunosuppressive agents to transplanted tissues and
organs. It is also well known that when used
in combined therapy they can change their
metabolism to each other. The aim of the
study is to evaluate the effect of immunosuppressants on morphology, cytoskeleton proteins and intensity of apoptosis in cells of
three lobes of rat prostate.
Material & Methods 48 adult, not operated
Wistar rats were divided into seven experimental groups and control group. In experimental groups the animals were treated with
immunosuppressants including rapamycin,
mycophenolate mofetil, cyclosporine, tacrolimus and encorton in different protocols for
6 months. Afterword the rats were killed and
three lobes of prostate glands (dorsal, lateral
and ventral) were obtained. The examination
under light microscopy (H&E, PAS) and immunochemical reaction of cytokeratin, desmin
and vimentin were carried out. TUNEL was
applied to detect apoptosis.
Results The experiment showed the effects
of combined immunosuppression in number
of protocols on rat prostate cells. Immunosuppressive treatment caused different de-
gree of glandular epithelium hyperplasia,
varying changes in expression of cytoskeleton proteins and intensity of apoptosis depending on protocol of treatment.
Conclusions Different immunosuppressants
induced focal epithelial hyperplasia of different degree.
In groups were TUNEL positive cells were
numerous the hyperplasia was less prominent.
Different immunoreactivity and immunolocalization of proteins were determined depending on particular protocols.
P41
Hormonal Regulation of Na+-H+
Exchanger 3 (NHE-3) in Sertoli
cells: A Possible Role for Estrogens in Spermatogenesis
A. D. Martins, V. L. Simões, M. G. Alves, E. B. Cavaco,
S. Socorro, P. F. Oliveira
University of Beira Interior, CICS-UBI, Covilhã, Portugal
Introduction The secretion of the seminifer-
ous tubular fluid (STF), as well as the control
of the pH of this fluid is crucial for male fertility. Sertoli cells (SCs) express various types
of ion membrane transporters that are directly
involved on the movement of basic and acidic
particles across the membrane. Among them
is Na+-H+ Exchanger 3 (NHE3), which belongs to the NHE family, one of the most relevant epithelial ion transporter families, that
catalyzes the electroneural transport of extracellular Na+ for intracellular H+. The NHE
family plays a major role in intracellular pH
regulation, transcellular absorption of Na+,
cell volume and possibly in cell proliferation.
It has been reported that 17β-estradiol (E2)
can regulate the expression of NHE-3 and
the rate of Na+ transport in the male reproductive tract. Recently, we identified several
membrane H+ transporters in SCs, among
which NHE3. Although NHE3-knockout
mice are infertile, the role of NHE3 in providing the milieu for spermatozoa development remains unclear.
Material & Methods Primary rat Sertoli
cell cultures were maintained in the absence
or in the presence of 17β-estradiol (E2). The
mRNA and protein expression levels of
NHE3 were determined by qPCR and Western-blot, respectively.
Results In our study, we identified the expression of NHE3 mRNA and protein in cultured rat SCs. Quantification of the expression of NHE3 mRNA in SCs of the different
experimental groups was performed. Assessment of the alteration of the NHE3 protein
levels in SCs from the different experimental
groups was also done. The possible role of
E2 in NHE3 gene and protein expression
will be disclosed.
Conclusion As far as we know, this will be
the first report with the regulation of NHE3 by
E2. Deepening the knowledge on the mechanisms involved in the secretion, composition
and regulation of STF is essential and will be
a major step in understanding the possible
J Reproduktionsmed Endokrinol 2012; 9 (5)
371
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
mechanisms of infertility associated with
some hyperestrogenic pathological conditions.
05
Results of a Prospective Analysis
Indicating an Autoantibody Prevalence in Patients with Peyronie’s
Disease
A. Hauptmann1, T. Diemer1, W. Weidner1, G. Bein2,
H. Hackstein2
1Department of Urology, Paediatric Urology and
Andrology, Justus-Liebig University Giessen; 2Department of Clinical Immunology and Transfusion, Medicine University Hospital Giessen and Marburg GmbH,
Giessen, Germany
Purpose The pathogenesis of Peyronie’s
disease is still not resolved. An autoimmunological background is still under debate.
We have performed an initial prospective
analysis for the prevalence of typical autoantibodies in patients with Peyronie’s disease.
Methods 50 patients with Peyronie’s disease (mean age: 54.1 y) were analyzed for
human antinuclear antibodies (ANA), antiENA Pool, anti-dsDNA antibodies, cANCA,
pANCA, β2-glycoproteine antibodies (IgM
and IgG), anti-cardiolipine antibodies (IgM
and IgG) and anti-glomerular basement membrane (GMB) antibodies. ANA’s were analyzed by immunofluorescence and ELISA
technique in serum.
Results 5/50 patients with Peyronie’s disease
(10%) were positive for anti-β2-glycoproteine
antibodies (IgM). In contrast, the prevalence
of IgM anti-phospholipidantibodies in 206
healthy blood donors was reported to be 1%.
Other autoantibodies were not detectable in
any patient with Peyronie’s disease.
Conclusion This study describes a significant association (p = 0.0037) of Peyronie’s
disease with anti-β2-glycoprotein IgM antibodies compared to a “normal” human population. Normally, IgM anti-β2-glycoprotein
is an indicator for increased risk for thrombovascular complications on an autoimmunological basis. Our preliminary findings
may implicate a possible autoimmune background in about 10% of patients with
Peyronie’s disease, which may contribute to
the postoperative results.
P11
From Priapus to Priapism
A. Abdulha, J. Witt, A. Labanaris, V. Zugor
St. Antonius Hospital, Urology, Gronau, Germany
Introduction & Objectives According to
Greek mythology, Priapus was a rustic fertility god, protector of livestock, fruit plants,
gardens and male genitalia. Priapus was
noteworthy for his oversized, permanent
erection, which gave rise to the medical term
priapism. Priapism nowadays is a well know
treatable clinical entity which has been thoroughly examined and documented with over
2000 published articles covering this condition. The objective of this study is to examine the root between Priapus and priapism.
372
J Reproduktionsmed Endokrinol 2012; 9 (5)
Materials & Methods A detailed search on
the history of Priapus and priapism was undertaken on PubMed, Medline and Google.
Results Priapus was described as the son of
one of the phallic gods, either Hermes or
Dionysos depending on the source. His mother
was Aphrodite. According to the legend Hera
was informed that Aphrodite was unfaithful to
Dionysus with Adonis. Dissatisfied with her
conduct, she caused her to give birth to a child
of extreme ugliness and large genitals. Other
sources believe that Hera’s action was due to
her jealousy towards Aphrodite, for Paris of
having judged Aphrodite more beautiful than
Hera. According to myth, Priapus later on permanent erection was a result of his attempt to
rape the nymph Lotis. He pursued Lotis until
the gods took pity on her and turned her into a
lotus plant and gave him a permanent erection.
Historically, the clinical condition of an unwilling permanent erection had been described as a pathological condition initially
through ancient Greek doctors Galen and
Soranus of Ephesus and later on from doctors of the Byzantine Empire Oribasius and
Sicamus Aetius who eventually named this
condition priapism. In there writings they
distinguish hypersexuality from priapismus
and tried several therapeutic modalities of
that age. The contemporary literature of
priapismus begines in the twentieth century
with the article of Frank Hinman “Priapism:
Report of cases and a clinical study of the literature with reference to its pathogenesis and
surgical treatment” in which the treatment
described was still inadequate. After the second half of the 20th century the condition was
further understood and better treated due to
the increasing knowledge of the anatomical
structures of the penis and physiology of the
erection. Nevertheless, the pathophysiological differentiation of high and low flow priapism was not developed until 1983.
Conclusions The clinical entity of priapism
has been named after a God of Greek mythology Priapus and his permanent erection. Although priapism has been a known and documented for over 2000 years, only the last 30
years this condition has been deeply understood and adequately treated.
 Postersession 3: Sperm
Quality and Selection for
ART
P42
Sperm DNA Integrity Defect of Infertile Male Patients at IIUM Fertility Centre
A. Y. Abdul Wahab1, M. L. Md Isa2, A. M. Zainuddin3,
S. Abdul Rahman4, N. Baharudin4
1Obstetrics & Gynaecology; 2Kulliyyah of Nursing;
3Fertility Centre; 4Kulliyyah of Allied Health Science,
International Islamic University Malaysia, Kuantan,
Pahang, Malaysia
Introduction Male factor is responsible for
approximately 30% of the infertility cases.
Sperm quality shown to decline worldwide
including in Malaysia for almost all the infertility cases related to male factor. Recently,
reports indicate [http://eca2012.abstract-management.de/index.phpe] that sperm DNA
fragmentation process is one of the major
factor contribute to the reduce of sperm quality. Most of the studies have shown that
sperm DNA fragmentation are higher among
oligozoospermia compared to normozoospermia patients. Although conventional semen analysis could determine the quality of
the sperm, these parameters are unable to reveal the sperm DNA defects. The aim of this
study is to investigate the sperm DNA fragmentation among infertile normozoospermia
and oligozoospermia male patients. This
study will also evaluate the relationship between the sperm DNA integrity and the
sperm parameters.
Materials & Methods A cohort study was
conducted on 41 infertile male patients (23
normozoospermia and 18 oligozoospermia)
who seek fertility treatment at IIUM Fertility
Centre from October 2011 until March 2012.
Conventional semen analysis was performed
on these patients according to World Health
Organization (WHO), 1999 to determine the
sperm parameters. Then, followed by the
Acridine orange test (AOT) which was done
on the same sample in order to analyze the
sperm DNA integrity.
Results The DNA fragmentation Index (DFI)
above 30% were 13 (56.5%) and 10 (62.5%)
for normozoospermia and oligozoospermia
patients respectively (p = 0.5). The mean DFI
for oligozoospermia was higher; 50.8 ±
34.1% compared to normozoospermia which
was 37.9 ± 27.3%. However, there were no
significant differences in DNA fragmentation
between both infertile groups. The DFI of the
normozoospermia men (n = 23) was ranged
from 0.9–85.3%. Smoking habit may effect
the DNA fragmentation which contribute
30.4% (n = 7/23) in the normozoospermia and
55.6% (n = 10/18) in the oligozoospermia patients. In the sperm parameters, DFI above
30% were higher in the low motility group;
81.2% (n = 13/16) compared to normal motility groups which had 48% (n = 12/25). There
were significant differences between both of
the groups (p = 0.034).
Conclusions Our results have shown that
DNA fragmentation not only effected the
oligozoospermia but also for normozoospermia male patients. As for the sperm parameters, the DNA integrity defects have impaired the motility of the sperm.
P43
Body Mass Index has no Impact
on Sperm Quality but on Reproductive Hormones
B. Mohamad Al-Ali1, T. Gutschi 1, K. Pummer1,
R. Zigeuner1, S. Brookman-May2, W. F. Wieland3, A. Aziz3
1Urology, Medical University of Graz, Austria; 2Urology,
2Ludwig-Maximilians-University, Munich; 3Urology,
Caritas St. Josef Medical Centre, Regensburg, Germany
Question Does body mass index (BMI) im-
pact on sperm quality and reproductive hormones? To date, results on this issue are par-
Table 6. A. Aziz et al. Descriptive Statistics
n
BMI
16
1082
821
191
p
< 18.50
18.5–24.9
25–29.9
> 30
Mean pathological spermatozoa morphology (%)
63.63
62.30
63.33
63.64
Mean sperm concentration (%)
30.70
63.09
66.39
62.06
0.122
Mean spermatozoa motility (%)
20.94
24.59
24.76
24.53
0.359
FSH
4.78
5.51
5.19
5.20
0.310
LH
3.62
3.92
3.63
3.43
0.006
T
5.43
5.48
4.61
3.87
< 0.001
13.20
12.79
11.61
12.66
0.135
PRL
0.488
P45
Nemaspermic DNA Fragmentation
in Non-leukocytospermic Ejaculates is Related with the Formation
of 8-Hydroxy-2’-deoxyguanosine
and it seems to be Related to an
Endogenous Sperm Defect
A. Micillo, A. D’Angeli, A. Pezzella, S. D’Andrea,
G. Cordeschi, E. Di Girolamo, F. Francavilla,
S. Francavilla
EAA Centre of Clinical Andrology, University of L’Aquila,
Italy
Introduction Activated seminal macrophages
Table 7. A. Aziz et al. Multivariable Analysis of Sperm Quality Regarding BMI (normal: 18.50–
24.99 vs pathologic > 24.99)
Sperm quality
BMI
Mean morphological pathologic spermatozoa in %
Mean sperm concentration in %
Mean spermatozoa motility in %
tially contradictory and deserve further
evaluation.
Methods Semen samples and serum levels
of FSH, LH, T, and PRL of a total of 2110
men attending our andrology unit from 1994–
2010 due to infertility work-up were analyzed. Patients were stratified according to
their BMI in 4 groups. Main outcome measures were sperm motility, morphology and
concentration and serum levels FSH, LH, T
and PRL.
Results No statistically significant difference was found for sperm quality and BMI
between patients categorized according the 4
BMI levels. T (p < 0.001) and LH (p = 0.006)
significantly differed between the 4 groups.
In multivariable analysis, BMI did not have
significantly independent influence on all
assessed sperm quality parameters, whereas
BMI significantly influenced hormone values for LH (p = 0.001), T (p = <0.001), and
PRL (p = 0.044).
Conclusions BMI had no significant impact
on sperm quality parameters. However, serum levels of LH, T, and PRL were significantly influenced by BMI (Tab. 6, 7).
Median
n
p
Normal
Pathologic
Overall
62.22
63.39
62.78
1098
1012
2110
0.131
Normal
Pathologic
Overall
62.63
65.58
64.04
1098
1012
2110
0.293
Normal
Pathologic
Overall
24.54
24.72
24.63
1098
1012
2110
0.631
P44
Zech-Selector: The Common
Method for Assisted Reproduction
Technology?
K. Dreier1, S. Neururer2, H. Ulmer2, J. Zech1
Private Kinderwunsch-Clinic Dr. Zech GmbH, Innsbruck; 2Department for Medical Statistics, Informatics
and Health Economics, Medical University Innsbruck;
Austria
1
Background In this study the Zech-selector,
a new sperm preparation method that was
published to completely eliminate spermatozoa with DNA-strand breaks was compared
with a double density-gradient centrifugation and a direct swim-up method without
centrifugation. DNA-fragmentation, motility and morphology of sperm were analyzed.
It is a fact, that spermatozoa with DNA-damage have a bad impact on the whole assisted
reproduction technique, thus several studies
analyzed the effect of gradient centrifugation
and swim-up techniques on the elimination
of DNA-strand breaks, but their results are
controversial.
Methods Semen samples from different
men with low and high DNA-fragmentation
(< 5 up to 40 %) rates and a minimum volume of 3 ml were analyzed. Before and after
semen preparation DNA-fragmentation rates
were analyzed with the HaloSperm Kit. Motility and morphology were analyzed manually using the WHO criteria 2010.
Results The results of the Zech-selector
were convincing and will be discussed.
Conclusion According to these data, the
Zech-selector could become the common
method for assisted reproductive medicine.
(MΦ) are present in non-leukocytospermic
subfertile ejaculates [Pelliccione et al. Int J
Androl, 2009] and are associated with altered sperm features and sperm DNA damage [Pelliccione et al. Fertil Steril, 2011].
Oxidative stress is often involved in the aetiology of sperm DNA damage and it may result from reactive species of oxygen released
by mononuclear cells (MNCs) such as MÖ,
or the result of aberrant metabolic processes
during the early phases of germinal development. 8-hydroxy-2’-deoxyguanosine (8OHdG) is a sensitive biomarker for oxidative
stress-related damage of sperm DNA. Here
we analyzed by flow cytometry, the presence
of 8-OHdG and of DNA fragmentation in
human sperm and its association with immunophenotipic characterization of non-germinal MNCs and standard seminal parameters in non-leukocytospermic sub fertile
ejaculates (WBCs < 1 × 106/ml).
Materials & Methods 60 non-leukocytospermic ejaculates from subfertile couples
were first evaluated for the routine semen
analysis. Flow cytometry in spermatozoa
was used to detect DNA fragmentation assessed by TUNEL assay and 8-OHdG using
a monoclonal antibody anti-8-OHdG. Non
germinal MNCs where evaluated by flow
cytometry, using monoclonal antibodies antiCD45, a general marker of all leukocytes,
anti-CD14 and anti HLA-DR as markers respectively of non-activated and activated
MΦ.
Results Percentages of sperm with DNA
fragmentation and with 8-OHdG were higher
in oligozoospermic ejaculates (< 39 × 106 total sperm count) and the 2 parameters were
significantly correlated (r = 0.36; p = 0.005).
Percentage of sperm with DNA fragmentation was negatively correlated with progressive motility of spermatozoa (r = –0.40; p =
0.001). No correlation was found between
the percentage of sperm with 8-OHdG and
the number of CD45+, of CD14+ and of
HLA-DR+ MNCs.
Conclusions The correlation between the
presence of 8-OHdG and DNA fragmentation suggests an oxidative origin of sperm
DNA damage. The lack of correlation between the occurrence of sperm 8-OHdG and
the number of ejaculated MΦ suggests that
the oxidative damage of sperm DNA is related to and endogenous sperm defect in
non-leukocytospermic subfertile ejaculates.
The determination of the oxidative adducts
J Reproduktionsmed Endokrinol 2012; 9 (5)
373
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
of nemaspermic DNA offers a new tool in
the evaluation of male subfertility and can be
used to select and monitor subjects to antioxidant therapy before PMA procedures.
Table 8. N. Gatimel et al. Vacuole criteria under high Magnification with Nomarki contrast
before and after Freezing-thawing.
Before freezing
After freezing/thawing
p
n.s.
Supported by MIUR (I), PRIN 2009.
ECA – Abstracts
2
P46
Intra-Acrosomal Protein Indicates
Disturbed Acrosome Activity and
Correlates with IgA Load on Human Spermatozoa
K. Cox, I. Oltermann, M. Schlößer, V. Kistler, G. Haidl,
J.-P. Allam
University Hospital, Dermatology and Allergy, Andrology
Unit, Bonn, Germany
Introduction Disturbed acrosome reaction is
known to be a frequent cause of male fertility
disorders and is usually surveyed by
gelatinolysis and acrosin activity. Yet these
tests cannot disclose why capacitation ability
is reduced. Besides low vitality and already
undergone acrosome reaction disturbance of
acrosome integrity can be considered a cause.
Thus the aim of this study was to show that a
disturbed acrosome structure of different origin is related to low gelatinolysis ability.
Material & Methods In sperm samples of
30 patients percentage of disturbed acrosome integrity was detected by flow cytometry using the antibody IAP/FITC against
intra-acrosomal protein (IAP) which can be
detected after chemically induced acrosome
reaction as well as in damaged spermatozoa.
Furthermore acrosin activity was screened
using the gelatinolysis assay and spermiograms were made according to WHO guidelines. Percentage of IAP was then compared
with outcome of gelatinolysis, vitality, motility, morphology and signs of inflammation.
Results We could show that a disturbed
acrosome integrity is significantly correlated
with reduced gelatinolysis as well as with
low vitality and motility. Furthermore we
demonstrated that there is no relation to morphological alteration such as acrosome disturbance or elongation of spermatozoa. Most
interestingly, percentage of detected IAP
correlates with load of IgA on spermatozoa
in mixed antiglobulin reaction test (MAR)
and thus with auto-immunological events.
Yet it could not be linked to signs of acute
inflammation such as IL-6 and peroxidase in
seminal plasma.
Conclusion When given high percentage of
detected IAP in sperm samples a reduced
acrosin activity can be assumed. Disturbance
of acrosome integrity reflected by IAP cannot be detected using the light microscope
and is likely not due to abnormal development of spermatozoa but a result of biochemical processes afterwards presumably
undergone acrosome reaction, apoptosis and
auto-immunological events namely IgA
load. Albeit it is clear that acrosome reaction
itself changes the acrosome structure it is
likely that alteration of acrosome as detected
by IAP/FITC can induce early acrosome reaction vice versa or inhibit it.
374
J Reproduktionsmed Endokrinol 2012; 9 (5)
Total vacuole area (µm )
0.75 ± 0.20
0.73 ± 0.20
Anterior vacuole area (µm2)
0.24 ± 0.13
0.21 ± 0.13
n.s.
Median vacuole area (µm2)
0.48 ± 0.15
0.49 ± 0.14
n.s.
Basal vacuole area (µm2)
0.04 ± 0.02
0.04 ± 0.03
n.s.
Relative vacuole area (RVA) %
6.2 ± 1.8
6.1 ± 1.7
n.s.
% of sperm with RVA ≤ 6,5 %
63.5 ± 16.1
63.4 ± 13.5
n.s.
% of sperm with RVA > 13 %
9.2 ± 7.2
8.8 ± 6.8
n.s.
P47
Sperm Vacuoles are not Modified
by Freezing-Thawing Procedures
N. Gatimel, R. D. Leandri, J. Parinaud
Centre d’AMP Hôpital Paule de Viguier, Toulouse,
France
Introduction Since the development of a
new concept called Motile Sperm Organellar
Morphology Examination (MSOME) in
2001 for observing the cephalic vacuoles
under high magnification (×6000), no study
to date has assessed the effect of cryopreservation on these vacuoles. Despite the success
of sperm cryopreservation in assisted reproductive technology (ART), the process of
freezing and thawing is undoubtedly associated with impaired sperm quality. Evaluation
of the vacuoles under high magnification before and after freezing/thawing could allow
us to determine whether it is possible to use
for IMSI with frozen-thawed sperm the same
criteria as those established from fresh semen.
Material & Methods Conventional semen
analysis (motility, vitality, morphology) and
assessment of cephalic vacuoles at high magnification using a digital imaging software
(Leica Application Suite v 3.6) allowing accurate and objective measurements of vacuoles area were performed for 27 fertile men
before and after sperm freezing-thawing.
The main outcome measures are relative
vacuole area, vacuole area (in µm2) in the different positions (anterior, median and posterior), and the percentage of sperm with a
relative vacuole area less than 6.5% and
more than 13.5%.
Results While we find a significant decrease
after freezing-thawing in motility (49 ± 15 to
25 ± 12 %; p < 0.0001), vitality (77 ± 9 to
46 ± 9 %; p < 0.0001) and normal forms
(17.8 ± 6.5 to 14.9 ± 7 %; p < 0.05), there is
no difference in the different vacuole criteria
assessed at high magnification with Nomarsky
contrast (Tab. 8).
Conclusion This study demonstrate that
freeze-thawing procedures has no effect on
human sperm vacuoles.
P48
Epididymis Response Partly Compensates for Spermatozoa Oxidative Defects in snGPx4 and GPx5
Double Mutant Mice
A. Noblanc1, M. Peltier1, C. Damon-Soubeyrand1,
F. Saez1, R. Cadet1, M. Conrad2, J. Drevet1, A. Kocer1
1GReD – UMR CNRS 6293/INSERM U1103/Clermont
Université, Aubière, France; 2Institute of Developmental Genetics, Helmholtz Zentrum München, German
Research Centre for Environmental Health, Neuherberg, Germany
Introduction Oxidative stress has been
shown in male infertility to promote loss of
sperm functions. Oxidative stress occurs
when reactive oxygen species (ROS) generation is not sufficiently controlled by antioxidant players such as for example the glutathione peroxidase enzymes (GPx). To investigate the role of the sperm nucleus GPx4
(snGPx4) and GPx5 in epididymal sperm
maturation, we generated double knockout
sngpx4;gpx5–/– mice (DKO).
Material & Methods Sperm DNA analysis
was performed by staining, immunofluorescence and flow cytometry. Expression of
ROS-recycling enzymes and disulfide bridging enzymes was quantified by qRT-PCR.
Antioxidant activity was measured by enzymatic assay.
Results Spermatozoa of sngpx4;gpx5–/– mice
display sperm nucleus structural abnormalities including delayed and defective nuclear
compaction associated with DNA damage.
We showed that to counteract GPx activity
losses, the epididymis of the DKO animals
mounted an antioxydant response resulting
in a strong increase in its global H2O2-scavenger activity especially in the cauda territory. Quantitative RT-PCR data show that
together with the up-regulation of epididymal scavengers (of the thioredoxin/peroxiredoxin system as well as glutathione-S-transferases) the epididymis of double mutant
animals increased the expression of several
disulfide isomerases in an attempt to recover
normal disulfide bridging activity. Despite
these compensatory mechanisms, caudastored spermatozoa of DKO animals show
high levels of DNA oxidation, increased
fragmentation and greater susceptibility to
nuclear decondensation. Nevertheless, the
enzymatic epididymal salvage response is
sufficient to maintain full fertility of DKO
Figure 13. A. Noblanc et al. Cauda-retrieved spermatozoa of DKO animals suffer oxidative damage. a: Left
panel: Typical picture of fragmented (arrowhead) or
non-fragmented (arrow) sperm nucleus as shown by the
modified Sperm Chromatin Dispersion Assay. Right
panel: Histograms show the proportion of WT and
DKO cauda collected spermatozoa with a fragmented
DNA. b: Left panel: Typical immunodetection of the
nuclear adduct 8-oxodG in cauda epididymidis-retrieved
spermatozoa preparations from DKO male mice. Right
panel: Histograms show the percentage of 8-oxodG
positive spermatozoa in cauda epididymidis-retrieved
spermatozoa preparations, respectively from WT, positive control (WT spermatozoa treated with H2O2) and
DKO male mice. (Mean ± SEM; n = 5; *: p < 0.05; **: p < 0.01;
***: p < 0.001). Scale bar = 5 µm.
males whatever their age, when crossed with
young WT female mice.
Conclusion Our data emphasize the ability
of the epididymis to counteract excessive ROS
and that normal sperm nucleus condensation
should not be considered as an absolute indicator of full nuclear integrity (Fig. 13).
P49
Seminal Plasma microRNAs are
Differentially Expressed in Normozoospermia, Oligozoospermia and
Azoospermia
T. Greither, N. Nalazek, M. Giebler, I. Hoffmann,
H. M. Behre
Centre for Reproductive Medicine and Andrology,
University of Halle, Germany
proaches covering the discrimination of different fluidal traces. However, regarding
male infertility data about the relevance of
microRNAs in seminal fluid and sperm cells
are rare.
Material & Methods microRNA expression was studied using MicroRNA Arrays
facilitating the Northern Blot principle (Human MicroRNA Array I–IV, Signosis Inc.,
Carlsbad, USA). 352 microRNAs was analyzed in three independent patient samples
(normozoospermic, oligozoospermic, azoospermic men). Candidate microRNAs significantly different expressed in fertile and
non-fertile patients can be analyzed in a
vaster cohort by quantitative real-time PCR.
Statistical analyses were carried out by SPSS
18.0 software (IBM Inc., Ehningen, Germany).
Results Total expression of 193 microRNAs
was detectable in patients’ samples by the
MicroRNA Arrays. Of these, especially
microRNA miR-19a and -b, miR-22, miR122a, mir-196a, miR-199a and -b, miR-224,
and miR-375 exhibited an elevated expression compared to other microRNA entities.
193 microRNAs were expressed in the seminal plasma of the normozoospermic proband, 190 in the oligozoospermic and 166 in
the azoospermic patients. 16 microRNAs
differed significantly in expression between
normozoospermic and azoospermic samples,
19 microRNAs between the normozoospermic and azoospermic samples and 5
microRNAs between oligozoospermic and
azoospermic samples. MicroRNAs miR-9,
miR-93, miR-125a, miR-155, miR-204, miR368 and miR-373 were markedly differentially expressed and may be interesting for
further analysis on their relevance in male infertility.
Conclusion We were able to detect several
microRNAs in the seminal plasma serving as
candidates for the diagnosis of fertility disturbances. Due to the relatively easy accessibility of seminal plasma and the unbiased
detection of the microRNA fingerprint, detection of a selected number of infertility-associated microRNAs may be a new and promising addition to classical routine diagnostic
methods.
P50
Piwi Gene Expression is Associated with Ejaculate Parameters
and Male Infertility
M. Giebler1, 2, C. Mösinger2, L. Müller2, I. Hoffmann2,
T. Greither2, H. M. Behre2
1ZRA; 2Centre for Reproductive Medicine and Andrology,
University of Halle, Germany
Introduction microRNAs are small, non-
coding RNAs of endogenous origin, which
function intracellularly as translational repressors of gene expression. Furthermore,
microRNAs can be detected in many extracellular fluids and they can be applied as
biomarkers for several diseases including tumors, sepsis or pre-eclampsia. The expression of microRNAs in seminal fluid was recently described in several forensical ap-
Introduction The Piwi gene family (Pelementinducedwimpytestis) is a subgroup
of evolutionarily highly conserved genes
coding for Argonaute proteins that play an
essential role in RNAi and posttranscriptional gene regulation. While members of
AGO subclass are ubiquitous present in diverse tissues, Piwi genes are only expressed
in the germline. It is known that the Piwi
genes, which are expressed in pre-pachytene
and pachytene stages of spermatogenesis,
are associated with germ cell development
and silencing of retrotransponsons to maintain genomic integrity in mice while no data
have been described so far in humans. In
Europe 10% of male population is affected
by infertility caused by defects in spermatozoa maturation or transport. The aim of this
study was to investigate the relevance of the
mRNA expression of human Piwi genes
(Piwi like 1–4) for evaluation of male infertility.
Material & Methods The study was performed in 31 infertile patients and 43 healthy
volunteers after approval of the ethics committee of the university and informed written
consent of all study volunteers. RNA was
extracted from spermatozoa, cDNA synthesis was conducted and expression of Piwi
like 1, 2 and 4 was measured by real-timePCR. The expression was correlated with
various clinical parameters (fertility status,
sperm motility, sperm concentration, occurrence of morphological defects of spermatozoa). Bivariate correlation analysis according to Spearman-Rho and Chi-square test
were applied.
Results The appearance of spermatozoa with
head defects was positively correlated with
expression of Piwi like 2 mRNA (p = 0.015;
r = 0.42). Likewise, a significant positive
correlation was detected between Piwi like
2 mRNA expression and percentage of immotile sperm (p = 0.049; r = 0.449) and the
diagnosis of infertility (p = 0.001; r = 0.384),
respectively. Furthermore, mRNA expression of Piwi-like 2 was negatively correlated
to sperm concentration (p = 0.002; r = –0.352).
Elevated Piwi like 1 mRNA expression is
negatively correlated with mid-piece defective spermatozoa (r = –0.356; p = 0.042).
There is a significant association between
low Piwi like 2 mRNA expression and the
presence of a normozoospermia (p = 0.026,
Chi-square test).
Conclusion Elevated expression of Piwi
like 2 is associated with defects in spermatogenesis and associated infertility. Piwi like 1
expression has opposite effects. Further
studies have been initiated to clarify the diagnostic relevance and the mechanistic background of both Piwi genes for male infertility.
P51
Lysophosphatidylcholine Content
in Human Spermatozoa Depends
on BMI?
S. Pyttel1, A. Nimptsch2, U. Jakop3, K. Müller3, U. Paasch1,
J. Schiller2
1
Institut of Dermatology, Venerology and Allergology;
2Faculty of Medicine, Institute of Medical Physics and
Biophysics, University of Leipzig; 3Leibniz Institute of
Zoo and Wildlife Research, Berlin, Germany
Introduction The lipid composition of the
human spermatozoa membrane is complex.
The most abundant glycerophospholipid is
phosphatidylcholine (PC) (16:0/22:6). The
J Reproduktionsmed Endokrinol 2012; 9 (5)
375
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
fatty acyl composition of sperm is unique
and comprises large amounts of highly unsaturated fatty acyl residues, in particular
docosahexaenoic acid (22:6) which are crucial for the fluidity of the membrane and,
therefore, the successful fertilisation process. However, as a consequence of this significant amount of unsaturated fatty acyl
residues, the spermatozoa are very sensitive
to reactive oxygen species (ROS). It has
been already shown that PC is converted into
lysophosphatidylcholine (LPC) under conditions of oxidative stress, and, thus, the PC/
LPC ratio may be used as a measure of sperm
quality. Oxidative stress is massively involved in the pathology of many diseases. It
has already been reported that obesity
evokes a state of systemic oxidative stress
and an elevated body mass index (BMI)
negatively affect the male reproductive potential. Surprisingly, however, ROS-induced
changes of the sperm lipids have been
scarcely investigated.
Material & Methods Semen samples from
58 donors were used after signing informed
consent. The men were grouped according to
their BMI: 21 normal weight men (20.00–
24.99 kg/m²), 20 overweight men (25.00–
29.99 kg/m²), 17 obese men which were subdivided into subcategory named obesity I
(30.00–34.99 kg/m², n = 9) and obesity II
(≥ 35.00 kg/m², n = 8). The lipid composition of spermatozoa was determined by matrix-assisted laser desorption and ionization
time-of-flight mass spectrometry because
this technique offers some important advantages: the required sample preparation steps
are simple and can be quickly performed,
derivatization of the samples is not required
and considerable concentrations of impurities such as buffer compounds, salts or detergents are tolerated.
Results The lipid composition is significantly different if the spermatozoa from extremely obese men (BMI ≥ 35.00 kg/m²) are
considered in comparison to normal weight
volunteers. The PC/LPC ratio clearly reflects
the changes of the lipid compositions (normal weight men: PC/LPC: 23 [7–60], obese
men subgroup II: PC/LPC: 4 [1–7], data expressed as median [interquartile range]).
This clear effect is not observed if men with
a slightly elevated BMI were included.
Conclusions The significant reduction of
the PC content accompanied by an increased
LPC could be a sign for a restricted fertilisation competence of those ejaculates. The
large variability of the PC/LPC ratios may
indicate highly diverse capabilities of the individuals to manage oxidative stress. Therefore, it is important to clarify whether either
ROS or PLA2 activity represent the prime effectors of the observed effects.
376
J Reproduktionsmed Endokrinol 2012; 9 (5)
P52
A Cross-Platform Cross-Laboratory
Microarray Study as a Powerful
Tool to Reveal Gene Expression
Signatures of Male Infertility
P53
Sperm DNA Fragmentation as Assessed by Tunel/Mean Values in
Fertile Men and Intra Individual
Variability
H. Cappallo-Obermann, W. Schulze, A.-N. Spiess
Department of Andrology, University Hospital HamburgEppendorf, Germany
M. Muratori1, L. Tamburrino1, M. Cambi1, S. Marchiani1,
I. Natali1, I. Noci2, M. Maggi1, G. Forti1, E. Baldi1
1Clinical Physiopathology; 2Sciences for Women’s
and Child’s Health, University of Florence, Italy
Introduction The molecular basis of idiopathic male infertility is largely unknown.
Gene expression profiling of normal and
pathological human ejaculates/spermatozoa
is a tool to identify causes on a molecular
level. We present a cross-laboratory crossplatform microarray study with gene expression profiles of 127 human ejaculates/spermatozoa. Involved are donors/patients belonging to different groups in respect to fertility status and spermiogram parameters (according to WHO guidelines, 2010).
Material & Methods 25 ejaculates with different outcomes of IVF treatment (fertilisation rates, pregnancy rates) were collected at
the Fertility Centre Hamburg. RNA was isolated and whole genome microarrays (Codelink, 55k) were hybridized. For cross-platform
analysis, seven sets of raw data were downloaded from GEO (NCBI) additionally. All
data were background corrected. Log(2) data
were quantile normalized using the “Affy”
package (Bioconductor). Datasets were
merged by EntrezID common to all platforms.
In case of multiple probes targeting one
EntrezID the one with highest MAD (Median
absolute deviation) was chosen. Batch effects
were eliminated using different R packages.
Result In a first attempt we investigated
mRNA expression patterns of 25 normozoospermic donors with different outcomes in
the IVF program. The degree of individual
heterogeneity of the resulting gene expression patterns was very high and disturbed the
detection of relevant genes. We extended the
study to data downloaded from GEO database. A total of 127 gene expression profiles
of human spermatozoa from 6 different laboratories and 5 different microarray platforms
were analyzed in silico.
When merging datasets from different laboratories and platforms the main challenge is
to overcome non-biological technical bias
while keeping an optimum of biological information at the same time. Applying the
“ComBat” package (Bioconductor) we were
able to cluster samples according to their
biological class and no longer to platform/
laboratory. As expected, the transcripts for
protamine 2 (PRM2) and transition protein 1
(TNP1) showed the highest average expression in all samples. Furthermore functional
annotation analysis of the 200 transcripts
with highest expression detected overrepresentation of GOterms “spermatogenesis”
and “translation” (DAVID6.7, NIAID/NIH).
Conclusion Successful merging of different
datasets opens new possibilities for understanding effects on male infertility by analyzing gene expression patterns in different
combinations.
Introduction Sperm DNA Fragmentation
(SDF) is a chromatin anomaly frequently
found in sub and infertile patients and negatively impacting on human reproduction.
Given that, many authors propose that tests
detecting SDF should be included in the
clinical management of male infertility.
TUNEL/PI [Muratori et al. Hum Reprod,
2008] is an innovative version of the
TUNEL assay, one of the most popular
methods to reveal SDF by flow cytometry.
The new technique couples the nuclear staining of sperm with the detection of DNA
breaks and thus excludes M540 bodies from
the sperm analysis and greatly ameliorates
the accuracy of the measures of SDF. In previous studies [Muratori et al. JAndrol, 2010]
we further demonstrated that when TUNEL/
PI is executed by a standardised procedure, it
presents very low (< 5%) intra-assay coefficients of variation (CVs), thus resulting a
quite precise test. In the present study, we
faced two further aspects important for using
TUNEL/PI in the clinical practice: the development of reference values and the determination of the intra-individual variability.
Material & Methods For the first aim, 53
proven fertile men (i.e. natural pregnancy
within one year from the day in which
TUNEL/PI was executed) were recruited and
SDF was measured by TUNEL/PI. For the
second aim, within patients afferent to our
clinics, we retrospectively selected those
who performed TUNEL/PI at least twice.
The variability between the two measures
was calculated as CV.
Results In the collected fertile men, the average age was 37.2 ± 4.8 y, (average female
age = 34.5 ± 3.9 yrs) and semen parameters
were as following: sperm count (millions):
= 189.7 ± 159.4; concentration (millions/ml)
= 71.0 × 106 ± 90.8 × 106; morphology = 9.4 ±
6.1%; progressive motility = 45.8 ± 17.5%;
total motility = 55.0 ± 17.6%. In this group
of fertile men, we found an average value of
SDF of 36.4 ± 14.8% and a range of 12,0–
65,56 %. Regarding the intra individual variability of SDF, we observed that SDF remains quite stable within 3 months. Indeed
the average intra-individual CV was 8.9 ±
5.8% (range: 1.5–16.4%, n = 11) resulting
smaller than CVs for sperm count (36.7 ±
33.2%), concentration (29.0 ± 23.5%), progressive motility (14.5 ± 12.3%), total motility (19.4 ± 20.2%) and morphology (30.0 ±
22.5%). When the length between the 2 determinations of SDF was greater than 3
months, the intra-individual CV for SDF increased to 17.1 ± 15.0% (range: 0.8–66.0%,
n = 42).
Conclusion In this study we began to col-
lect fertile men to the final aim of building
the reference value for SDF as assessed by
TUNEL/PI.. In addition, we reported that
within 3 months, SDF is the most stable intra-individual semen parameter.
P54
Characterization of Sumoylated
Proteins in Human Sperm
S. Marchiani1, L. Tamburrino1, M. Muratori1, D. Nosi2,
G. Forti1, E. Baldi1
1Department of Clinical Physiopathology; 2Deptartment
of Anatomy, Histology and Forensic Medicine, University of Florence, Italy
Introduction SUMOylation is a post-translational protein modification involved in the
regulation of essential cell functions. Recently our group investigated the expression
of SUMOylated proteins in human ejaculated spermatozoa [Marchiani et al., 2010].
We found several SUMO-1 and SUMO-2/
3ylated proteins in spermatozoa in a molecular weight range of 25-85 kDa. Moreover we
showed that SUMO-1 is mainly present in
live spermatozoa and the percentage of
SUMOylated spermatozoa was inversely
correlated with total and progressive motility. Such correlations become stricter when
only asthenospermic subjects were included
in the analysis. By immunoconfocal fluorescence analysis and electron microscopy, we
demonstrated that SUMOylated proteins are
mainly located in the nucleus and in the
midpiece. To better understand the role of
this protein modification in sperm we aimed
to characterize possible target proteins of
SUMO-1. In particular, we evaluated RanGap1 (Ran GTPase-activating protein 1) one of
the main target of SUMO in somatic cells,
and DRP1 (Dynamin-related protein 1),
whose SUMOylation in somatic cells provokes alterations of mitochondrial function.
Material & Methods By using immunoprecipitation/western blot analysis, immunofluorescence and immunoconfocal fluorescence we determined the occurrence of
SUMOylation of RanGap-1 and DRP1 and,
subsequently, their relative localization in
sperm.
Results By immunoprecipitation both with
anti-SUMO-1 and with anti-RanGap-1 antibodies, we demonstrated that RanGap-1 is
SUMO-1ylated in human spermatozoa. With
same strategy, we demonstrated that DRP-1
is SUMO-1ylated and that this protein modification is found at higher levels in sperm
pools from asthenozoospermic men respect
to normozoospermic. By confocal microscopy we observed that RanGap-1 is located
both in the neck area and at acrosomal level
of sperm, whereas co-localization between
SUMO-1 and RanGap-1 is mainly found in
the neck area.
Conclusion We identified RanGap-1 and
DRP-1 as two targets of SUMOylation in
human spermatozoa. Our preliminary data
suggest that SUMOylation of DRP1 may be
related to sperm motility. Taken together,
our data [Marchiani et al, 2010 and present
study] suggest that SUMOylation could play
different roles in human sperm functions and
the characterization of target proteins is fundamental to understand such roles.
P55
Small Human Sperm Vacuoles
Observed under High-Magnification (×10000): Small Nuclear Concavities Linked to Failure of Chromatin Condensation
F. Boitrelle1, 2, F. Ferfouri1, 2, J.-M. Petit1, 2, M. Bergere1, 2,
R. Wainer1, M. Bailly1, F. Vialard1, 2, M. Albert1,2,
J. Selva1, 2
1
ART Unit, Poissy Hospital; 2EA 2493, Versailles,
Saint Quentin en Yvelines, France
Introduction Intracytoplasmic morphologically selected sperm injection (IMSI), using
high-magnification microscopy with differential interference contrast, could allow to
improve embryos’ implantation by selection
of a normal spermatozoon with a vacuolefree head. If the nature of large vacuoles was
recently well described, the nature of smaller
ones remained unclear. The present study set
out to determine whether multiple small
vacuoles were of nuclear or acrosomal origin.
Material & Methods For 15 infertile men
with various sperm profiles, high-magnification was used to select and assess (1) 450
normal spermatozoa with a vacuole-free
head and (2) 450 spermatozoa with multiple
small vacuoles (> 2 vacuoles occupying each
less than 4% of the head’s cross-sectional
area). Sperm acrosomal status (reacted or not
using Pisum sativum lectin staining) and
their degree of chromatin condensation (aniline blue staining) were subsequently analyzed on the same spermatozoa using threedimensional deconvolution microscopy.
Results The mean proportion of sperm with
a non-condensed chromatin was significantly higher for spermatozoa with multiple
small vacuoles than for normal ones (18.9 ±
1.9% vs 6.7 ± 1.5% in average respectively;
p < 0.001). Spermatozoa with small vacuoles
tended to be more often acrosome reacted
than normal ones (6.0 ± 1.6% acrosome reacted spermatozoa among spermatozoa with
vacuoles vs 2.9 ± 1.0% among normal spermatozoa; p = 0.06), even if this difference
did not reach significativity. No association
was observed between chromatin condensation and acrosomal status. In all the 450 spermatozoa observed, multiple small vacuoles
were identified as small abnormal nuclear
concavities.
Conclusions Multiple small vacuoles are
small nuclear concavities linked to failure of
chromatin condensation.
P56
Cryopreservation of Human Spermatozoa Decreases the Number
of Motile Normal Spermatozoa,
induces Nuclear Vacuolisation
and Chromatin Decondensation:
Interests of High-Magnification
for Frozen/Thawed Sperm
F. Boitrelle1, 2, M. Albert1, 2, C. Theillac1, 2, F. Ferfouri 1, 2,
M. Bergere1, 2, F. Vialard1, 2, R. Wainer1, M. Bailly1,
J. Selva1, 2
1ART Unit, Poissy Hospital; 2EA 2493, Versailles,
Saint Quentin en Yvelines, France
Introduction Even though cryopreservation
of human spermatozoa is known to alter
sperm motility and viability, it may also induce nuclear damages. The present study set
out to determine whether or not cryopreservation alters motile sperm morphology under high-magnification and/or is associated
with chromatin decondensation.
Material & Methods For 25 infertile men,
we used high-magnification microscopy to
determine the proportions of various types of
motile spermatozoa before and after freezing-thawing: morphometrically normal spermatozoa with no vacuole (grade I), < 2 small
vacuoles (grade II), at least one large vacuole
or > 2 small vacuoles (grade III) and morphometrically abnormal spermatozoa (grade
IV). The spermatozoa’s chromatin condensation and their viability were also assessed
before and after freezing-thawing.
Results Cryopreservation induced sperm
nuclear vacuolization. It decreased the proportion of grade I + II spermatozoa (p < 0.001).
It induced a decrease in the sperm viability
rate (p < 0.001) and increased the proportion
of sperm with non-condensed chromatin
(p < 0.001). The latter parameter was strongly
correlated with sperm viability (r = 0.71;
p < 0.001). However, even motile sperm presented a failure of chromatin condensation
after freezing/thawing because the proportion of sperm with non-condensed chromatin
was correlated with high-magnification morphology (r = –0.49 and +0.49 for the proportions of grade I + II and grades III+IV, respectively; p < 0.001).
Conclusions Cryopreservation alters the organelle morphology of motile human spermatozoa and induces sperm chromatin decondensation. High-magnification microscopy may be useful for evaluating frozenthawed spermatozoa before use in assisted
reproductive technology procedures (such as
intrauterine insemination, in vitro fertilisation and intracytoplasmic sperm injection)
and for performing research on cryopreservation methods. If frozen-thawed sperm is to
be used for intracytoplasmic sperm injection,
morphological selection under high magnification may be of particular value.
J Reproduktionsmed Endokrinol 2012; 9 (5)
377
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
P57
Cryptozoospermia Negatively
Affects Pre-Implanation Embryo
Development: Results from a
Study on 798 ICSI Cycles with
Fresh Ejaculated Sperm
M. Castiglioni, P. Sulpizio, G. Tesoriere, P. Testa,
C. Lepadatu, S. Rofena, G. M. Colpi
Andro-Urology and IVF Unit, San Paolo Hospital, University of Milan, Italy
Introduction Semen quality may affect the
early embryonic development in humans,
that seems to be strongly dependent also on
male factors. Thus, we evaluated the effect
of semen quality on the main ICSI outcomes
in cycles where fresh ejaculated sperm were
used.
Material & Methods In this retrospective
study, we considered 1,100 couples submitted to ICSI with fresh ejaculated sperm. To
limit the confounding effects of female factors, we excluded all cycles where the female
partner was > 40 years or where < 3 oocytes
were retrieved. According to these exclusion
criteria, 798 cycles were analyzed and divided
in four groups based on male partner sperm
concentration: cryptozoospermic (≤ 1 × 106/
ml; n = 182), severely oligozoospermic (1–5
× 106/ml; n = 156), oligozoospermic (> 5 and
< 20 × 106/ml; n = 201) and with a normal
sperm concentration (≥ 20 × 106/ml; n = 259).
The differences among the number of fertilized oocytes, total embryos, good quality
embryos, and the fertilisation rate, the pregnancy rate per embryo-transfer (ET) and the
implantation rate were evaluated in the 4
groups.
Results Only in cycles with cryptozoospermic semen we observed significantly lower
fertilisation rates (p < 0.0001), number of
fertilized oocytes (p < 0.01), number of total
embryos (p < 0.01) and number of good
quality embryos (p < 0.001) compared to
those cycles in which male partner semen
parameters were better; whereas, no differences among the same ICSI outcomes were
found in cycles in which the male partner
was severe oligozoospermic or oligozoospermic or with a normal sperm concentration. Finally, no differences were found
among the four groups regarding the pregnancy rate per ET and the implantation rate.
Conclusions Cryptozoospermia negatively
affects the early human embryogenesis in
ICSI cycles in which fresh ejaculated sperm
were used, corroborating the hypothesis of
an important paternal impact on the pre-implantation phase of embryo development.
378
J Reproduktionsmed Endokrinol 2012; 9 (5)
P58
Reliability of Flow Cytometry in
Quantifying Antibody-Molecules
on Sperm Surface
F. Sciarretta1, A. Sperandio1, G. Cordeschi1,
A. Barbonetti1, 2, M. R. C. Vassallo1, A. De Mutis1,
S. Francavilla1, F. Francavilla1
1Andrology Unit, University of L’Aquila; 2Centre for
Clinical Research, San Raffaele Sulmona, Italy
Introduction Antibody load on sperm surface when all ejaculated spermatozoa are
antiboby coated at screening tests (IBT or
MAR test) can represent a main determinant
of fertility impairment. The reliability of its
quantification by flow-cytometry (FCM) has
been questioned [Nikolaevaet al. Hum
Reprod, 2000]. In this study we re-assessed
the reliability of indirect flow-cytometry,
which allows the manipulation of controlled
variables.
Materials & Methods Motile sperm suspensions from 3 different donors were incubated with serial dilutions (1:8 to 1:128) of
2 sera with high titre of sperm-agglutinating
activity (SAA) from patients with > 90%
positive direct IgG-MAR test and, after 2
washing, with FITC-F(ab’) antibody antihuman IgG. Propidium iodide was used to
exclude from the analysis non-vital sperms.
The median fluorescence intensity (in arbitrary units) was assessed by FCM and converted in number of antibody-molecules using Quantum FITC MESF Kit®, including
several populations of microspheres associated to a known and increasing number of
fluorescein molecules. Moreover, sera from
12 patients with direct IgG-MAR test positive >90% were tested at a fixed dilution
1:16 with the same procedure.
Results Serial dilutions of the 2 immune
sera produced regression curves with a decay
of fluorescence intensity, reproducible with
different donors. The interassay coefficient
of variation ranged from 2.2% to 15%. When
converted in number of antibody-molecules,
median values ranged from a maximum of
81,000 ± 1,700 at 1:8 dilution to a minimum
of 6,700 ± 214 at 1:128 dilution. Below
10,000 antibody molecules the percentage of
positive spermatozoa began to decline from
> 90%. When sera from 12 patients with direct IgG-MAR test positive > 90% were
tested at a fixed dilution 1:16, the median
number of antibody-molecules/spermatozoon ranged from 81,000 to 12,000. More
than 95% of live spermatozoa were positive
at FCM when the median number of antibody-molecules/spermatozoon was > 20,000;
≥ 85% for values > 10,000; < 85% in the only
case with < 10,000 antibody-molecules/spermatozoon. The median number of antibodymolecules/spermatozoon was correlated
with the titre of sperm agglutinating activity
detected in the patients’ sera (r = 0.83;
p = 0.0008).
Conclusions FCM is a reliable method to
quantify the antibody load on sperm surface,
which can be easily converted in median
number of antibody-molecules/spermatozoon. More complicated methods have been
proposed in the past. This could contribute to
shed light on the variable interference of
antisperm antibodies with fertility. In clinical setting, direct FCM can have a role in
quantifying antibody load when screening
tests are strongly positive (> 90%), with potential clinical relevance in the choice of
treatment (IUI or ICSI).
P59
MMP-12 Expression is Detectable
in Human Seminal Plasma and
Represents a Predictor for Inflammatory Processes in Semen Analysis
A. Urbschat1, P. Paulus2, I. Wiegratz3, H. Beschmann4,
F. Ochsendorf4
1Urology; 2Anaesthesiology; 3Gynaecology; 4Dermatology, University Clinic of Frankfurt a. M., Germany
Introduction Macrophage metalloelastase12 (MMP-12), a protein of the matrix metalloproteinase family is involved in the breakdown of extracellular matrix in normal
physiological processes as well as in disease
processes. MMP-12 is almost exclusively
produced by macrophages and is associated
with inflammatory processes. Giving the
fact, that inflammatory processes do negatively influence ejaculate parameters, we investigated a possible presence and relevance
of MMP-12 in seminal plasma especially in
ejaculates with peroxidase positive granulocytes.
Material & Methods 33 patients who presented for semen analysis were assigned to
four groups depending on the result of semen
analysis according to the WHO guidelines
2010: normozoospermia (n = 10), OAT-syndrome (n = 6), azoospermia (n = 8) and
leukocytospermic samples (> 1 mio peroxidase positive cells/ml) (n = 10). MMP-12
was detected in seminal plasma by ELISA.
The statistical analyses were performed with
GraphPad Prism.
Results MMP-12 was measurable in all
seminal plasmas. Generally, MMP-12 concentrations in seminal plasma were significantly higher in patients with leukocytospermia than in patients with less than 1 mio.
peroxidase positive leucocytes (p < 0,001).
Leukocytospermic samples displayed significantly higher levels of MMP-12 in seminal plasma than patients with normozoospermia, OAT-syndrom and azoospermia.
Conclusion MMP-12 is present in seminal
plasma and is correlated with inflammatory
processes in human semen and therefore may
serve as predictor of ongoing inflammatory
processes.
P60
Success Predictors in Homologous
Intrauterine Insemination
H. Kostadinoviæ, M. Kolbezen, B. Zorn
Reproductive Unit Department of Obstetrics and
Gynecology, University Medfical Centre Ljubljana,
Slovenia
Objective To identify factors influencing
the outcome of infertility treatment using homologous intrauterine insemination (H-IUI).
Design Retrospective study of H-IUI cycles
performed at the Reproductive unit, Department of Obstetrics and Gynecology, University Medical Centre Ljubljana from 2002 to
2011.
Setting University-affiliated
infertility
clinic.
Patients & Ovarian Stimulation 919 couples
undergoing 2247 H-IUI treatment cycles,
stimulated by clomiphene citrate (CC),
letrozole (L) and gonadotropins: Pergonal,
Gonal-F (G), Puregon and Menopur (M),
Methods Female and male infertility factors diagnosis, duration of infertility, age,
type of hormonal treatment, follicles diameter, endometrial thickness, and semen quality 3 months before and at H-IUI, related to
the occurrence of a pregnancy. First, bivariate analysis (Mann-Whitney U and χ2 tests)
of first attempt H-IUI cycles, secondly logistic regression of the overall cycles.
Results Throughout the 10 year period the
overall clinical pregnancy rate per H-IUI
cycle was 11.7% and per couple 28,6% after
a mean of 2.0 treatment cycles. The pregnancy rate was identical (mean of 11.6% per
cycle) in the 4 first attempts. Pregnancy rate
did not differ according the type of female
factors of infertility: endometriosis (11.6%),
ovulation abnormalities (12.9%), tubal pathology (12.0%), uterine pathology (11.6),
unexplained infertility (12.4%) and cervical
pathology (15.4%). Pregnancy rate was
lower in cases of asthenozoospermia (7.1%)
and teratozoospermia (2.3%). At the contrary, H-IUI success was not influenced by
isolated leukocytospermia (19.5%). No influence of the following parameters on pregnancy rate was observed: type and duration
of infertility (respectively, p = 0.478 and
p = 0.192), female and partner’s age (respectively, p = 0.753 and p = 0.493), follicles
diameter (p = 0.371), endometrial thickness
(p = 0.634). Stimulation by CC and L was
less successful than that with gonadotropins
G and M (respectively, 9.4% and 9.5% vs.
19.6% and 16.7%).
Conclusion H-IUI is a simple and inexpensive treatment giving good pregnancy rates
at least up to 4 treatment cycles. Success is
dependent on the type of ovarian stimulation
used and on the concentration of motile
sperm at IUI.
P61
Human Sperm Likes Sugars: The
Role of the Glycolytic Pathway in
Male Gamete Functionality
C. Paiva1, A. Amaral2, 3, J. Ramalho-Santos2, 4
1PhD Programme in Experimental Biology and Biomedicine (PDBEB), Centre for Neuroscience and Cell
Biology; 2Centre for Neuroscience and Cell Biology,
University of Coimbra, Portugal; 3Human Genetics
Group, IDIBAPS, Faculty of Medicine, University of
Barcelona, Spain; 4Department of Life Sciences, University of Coimbra, Portugal
The sperm cell can survive for days in the
female reproductive tract requiring energy
for several purposes, such as progressive
motility, that can theoretically be obtained
by glycolysis and oxidative phosphorylation
(OXPHOS). The relative significance and
differential input of these metabolic pathways remains controversial.
In this work human sperm samples (n = 6)
were maintained for 48 h at 37°C (normoxia,
5 % CO2) in PBS medium containing (1) no
exogenous substrates; (2) glucose, pyruvate
and lactate (glycolysis and OXPHOS substrates). Additionally, the effects of potassium cyanide (an OXPHOS inhibitor, acting
at the complex IV of the mitochondrial electron transfer chain) and iodoacetic acid
(a glycolysis inhibitor acting at the glyceraldehyde 3-phosphate dehydrogenase level) in
sperm viability, motility, ATP content and
energy charge were tested.
Interestingly, human sperm maintained some
functionality after 24 h at 37°C, even in the
absence of any exogenous substrates. However and as expected, the percentage of motile sperm was higher in the presence of substrates (76.7 ± 4.3 compared to 55.7 ± 9.3;
p < 0.05). Likewise, the sperm energy charge
was better in the supplemented medium
(0.74 ± 0.03 vs 0.59 ± 0.06; p < 0.05). The
inhibition of glycolysis clearly affected
sperm motility, ATP content and energy
charge, lowering all parameters even in the
presence of exogenous substrates. On the
other hand, the mitochondrial poison potassium cyanide did not seem to affect sperm
functionality.
These data clearly points to the importance
of glycolysis in human sperm homeostasis.
03
Asthenozoospermia in Spinal CordInjured Men: a Model for Shedding
Light Upon the Contribution of
Glycolysis and Mitochondrion in
Supporting Sperm Motility
A. Barbonetti1, 2, M. R. C. Vassallo1, Y. Leombruni1,
A. Di Rosa1, S. Francavilla1, F. Francavilla1
1Andrology Unit, University of L’Aquila, L’Aquila;
2Centre for Clinical Research, San Raffaele Sulmona,
Italy
Introduction The multi-factorial etiology
of severe asthenozoospermia, usually occurring in men with spinal cord injury (SCI) includes an adverse impact of seminal plasma
(SP) on sperm motility. In this study we
tested the hypothesis of a double energetic
blockage (glycolysis and mitochondrial respiration) as a metabolic determinant of the
adverse effect exerted by SP from men with
SCI on sperm motility.
Material & Methods 22 seminal plasmas
were recovered by centrifugation of ejaculates obtained from SCI men by penile vibratory stimulation. Seminal fructose levels
were determined by spectrophotometry.
Each SP sample from SCI men as well as
from healthy donors was tested on donor
motile sperm suspensions for its effect on
sperm motility, vitality, mitochondrial membrane potential (ΔΨm) and caspase activation. Sperm motility was evaluated with
CASA and spermatozoa exhibiting an average pathway velocity > 5µm/sec were categorized by the software as motile spermatozoa. Sperm vitality was evaluated under light
microscope with the eosin exclusion staining. Sperm ΔΨm was assessed at flow cytometry with JC-1, which emits red or green
fluorescence in the presence of high or low
ΔΨm, respectively. Caspase activation was
evaluated at flow cytometry using permeable
FITC-conjugated peptides (LEHD-FMK and
DEVD-FMK), which irreversibly bind to the
activated caspase-9 and -3, respectively.
Results Only SP from asthenozoospermic
samples, exhibiting both low fructose levels
and inhibitory effect on ΔΨm, affected
donor sperm motility (motile sperms were
20.5 ± 12.7% in sperm samples exposed to
SP from asthenozoospermic SCI ejaculates
and 71.8 ± 13.3% in those exposed to donor
SP, p < 0.001). No significant effect on
sperm vitality was observed. The inhibitory
effect on sperm motility was reverted by
washing in medium containing glycolysable
sugars (48.8 ± 8.5% vs 45.2 ± 6.5% observed
in washed controls, p = 0.1), in spite of persistently depressed ΔΨm, as indicated by the
lower percentage of spermatozoa emitting
red JC-1 fluorescence (38.9 ± 5.0%) with
respect to washed controls (79.4 ± 7.2%,
p < 0.001). Activation of caspase-9 (mitochondrial caspase) and caspase-3 (executioner caspase) accompanied the loss of ΔΨm.
Conclusions A double energetic blockage
(glycolysis and mitochondrial respiration)
represents a metabolic determinant of the
adverse effect exerted by SP from men with
SCI on sperm motility. Mitochondrial dysfunction-related apoptotic/oxidative mechanisms might account for later consequences
on sperm motility/vitality.
P154
Pregnancy Rate, Semen Analysis,
Varicocele Profile in Surabaya
2007–2010
S. Alif, F. Rizald
Urology, Airlangga University – Soetomo Hospital,
Surabaya, Indonesia
Introduction Varicoceles have classically
been described to induce a stress pattern semen analysis. Improvements in semen pa-
J Reproduktionsmed Endokrinol 2012; 9 (5)
379
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
rameters after varicocelectomy had been the
main outcome of most studies, but the results
were different.
Objective To assess varicocele information
from Soetomo and Ramelan Navy Hospital
including patient’s detail, semen analysis before and after operation, and pregnancy rate.
We reviewed medical records of patients retrospectively who underwent Varicocelectomy 2007–2010 in Soetomo and Ramelan
Navy Hospital. The data collected and classified based on patient’s age, chief complaint,
type of varicocele, severity, semen analysis
and pregnancy rate.
Results There were 151 patients in both
hospital, but only 19 patients had information about pregnancy and 24 patients had information about semen analysis after operation.In four years there were 151 patients
with varicocele who underwent varicocelectomy. Most of them were 20–30 years old
(61%), complained testicular pain (88.7%),
unilateral (84.1%), grade II (55%), had stress
pattern of semen analysis before operation
(95.4%) and 4.6% were azoospermia. Over-
all Pregnancy Rate was 42.1%. Post operative semen analysis improved in 12/24
(50%) patients and normospermia in 4/24
(16.7%) patients (Fig. 14, 15).
 Postersession 4: Determinants of Male Reproductive Health
P62
Morphometric and Immunohistochemical Evaluation of the Testis of
Sexually Mature Mice (Mus domesticus) intoxicated with Boron
E. Bustos-Obregon
Universidad de Chile, Santiago, Chile
Introduction It has been reported that boron
causes changes in various systems, including
the male reproductive system. Residents in
some towns in northernChile were consum-
ing a few years ago in the drinking water 20
times more than the amount established as
permissible limit by WHO. This study evaluates the effects of high intake of boron in the
testis using an animal model. Boron was administered in the drinking water.
Material & Methods 20 male mice (Mus
domesticus), sexually mature, divided into 2
groups: the experimental group was given
Boron at a dose of 12 mg/L, and the control
group 0.6 mg/L, for 42 days. Sections of testis were obtained for: HE staining (Morphometry and Histopathology), Immunohistochemistry (Cox-2), Mallory and Picrosirious
stain (evaluation of tunica albuginea).
Results The results indicate that ingestion
of a dose of 12 mg boron/L produces vacuolization, tubular epithelial desquamation
and tamponade. Morphometry revealed decreased tubular diameter and epithelial
height and lumen diameter and increased interstitial area in the exposed group. Immunodetection of Cox-2 was positive in high percentage of tubules in the group intoxicated.
The tunica albuginea was thinner, with decreased percentage of type I collagen fibers
and an increase in the percentage of type III
collagen fibers in animals exposed to boron
in contrast to the control group.
Exposure to critical levels of boron produces
severe histopathological changes in the testis, altering morphometric parameters and
causing overexpression of Cox-2. Finally,
evaluation of collagen fibers suggests that
Boron produced a degradation of the collagen of the tunica albuginea, causing a decrease in the thickness of it and altering the
percentage ratio collagen I/collagen III, a
process called collagenolysis.
Conclusion Boron compromises testicular
function in mice, altering several reproductive testicular and sperm parameters, provokes collagenolisis and therefore altering
testicular architecture.
P63
The Impact of Vitamin D on Semen
Quality
Figure 14. F. Rizald et al.
M. Gudipati1, V. Hemingway1, L. Nowak1, S. Pearce2,
J. Stewart1, K. McEleny1
1
Newcastle Fertility Centre at Life; 2Institute of Human
Genetics, Newcastle Hospitals, NHS Trust Newcastle,
UK
Introduction Hypovitaminosis D is a signifi-
Figure 15. F. Rizald et al.
380
J Reproduktionsmed Endokrinol 2012; 9 (5)
cant public health issue in Northern Europe.
A role for Vitamin D (VitD) in human fertility has been suggested as its receptors/
metabolising enzymes are expressed in the
male genital tract and VitD improves sperm
motility. We investigated:
– The prevalence of VitD deficiency in men
attending a fertility clinic.
– The impact of VitD supplementation on
semen quality in men with VitD deficiency.
– The effect of the seasonal rise of serum
(sVitD) levels on semen quality in nonsVitD deficient men.
Methods We recruited125 men attending
our fertility unit into a prospective cohort
study. (Ethical approval obtained. Men on
VitD therapy excluded). Participants completed a fertility lifestyle questionnaire, submitted blood and semen samples, and were
invited to return 6 months later for further
samples. All participants with sVitD deficiency (75: Optimal).
Results 124 results were analyzed. sVitD
levels were deficient in 52 men (41.9%), insufficient in 51 (41.1%), adequate in 15 (12%)
and optimal in 6 (4.8%). The prevalence of
sVitD deficiency was significantly higher in
non-Caucasians (80% vs 36.7%; p = 0.002).
87/125 (69.6%) of participants returned for
follow-up. 37 had been sVitD deficient and
36 had received VitD supplementation.
Their sVitD levels improved from 14 ± 3.8 to
86.5 ± 36.7 nmol/l (Mean ± SD).
50/125 participants who were not sVitD deficient returned for follow-up. There was a
seasonal rise in sVitD levels from winter/
spring to summer/autumn (from 46.1 ± 17.5
to 64.6 ± 19.5 nmol/l, Mean ± SD).
Conclusions This is the first longitudinal
study to examine the impact of vitamin D elevation on semen quality. The prevalence of
VitD deficiency was twice as high in recruits
as in the general population. VitD deficiency
was not associated with poor semen quality
and supplementation did not improve semen
quality. We identified a significant decline in
semen parameters with increasing sVitD levels, but the reason for this is unclear and further studies are warranted.
P64
Increased Urinary Levels of Endocrine Disrupting Chemicals in
Filaggrin Gene Null Mutation Carriers: A Cross-Sectional Population-based Study
U. Joensen1, H. Frederiksen1, N. Jørgensen1, E. RajpertDe Meyts1, N. E. Skakkebæk1, A.-M. Andersson1,
T. Menné2, J. Thyssen2
1Growth and Reproduction, Rigshospitalet; 2National
Allergy Research Centre, Department of DermatoAllergology, Copenhagen University Hospital Gentofte,
Copenhagen, Denmark
Background Phthalates can impair male re-
productive development and function in animals, and studies also indicate a negative effect on human testicular function. Humans
are exposed to phthalates through the diet,
and from plastic products and personal care
products. Filaggrin is an epidermal protein
crucial for skin barrier function, and carriers
of filaggrin gene (FLG) null mutations are at
risk of having impaired skin barrier with facilitated transfer of allergens and chemicals
across the epidermis. We investigated
whether FLG null individuals have higher
urinary levels of phthalate metabolites, and
secondarily whether testicular function is associated with FLG genotype in a cross-sectional study of young men from the general
Danish population.
Materials & Methods 868 men, median age
19 years, were genotyped for the R501X,
ECA – Abstracts
7th ECA-Congress – Abstracts
Figure 16. U. Joensen et al.
2282del4 and R2447XFLGnull mutations.
65 men had anFLGnull genotype. Urinary
concentrations of 14 metabolites of short and
long-chained phthalates were measured, as
well as serum levels of reproductive hormones and semen quality.
Results Men withFLGnull genotype had
higher urinary excretion of most common
phthalate metabolites, both short and longchained, up to 39% (95%-CI: 17–61%) higher
in the mutation carriers for MnBP.FLG mutation carriers had slightly lower BMI and
slightly higher sex hormone-binding globulin (SHBG). We did not observe associations
betweenFLGgenotype and other reproductive hormones or semen quality.
Conclusion The results are the first evidence
thatFLGnull individuals are at risk of higher
internal exposure to phthalates, as a result of
a defective skin barrier. The same may apply
to other chemicals with potential to disrupt
the male endocrine system (Fig. 16).
P65
Perfluorooctanesulfonate (PFOS)
in Serum Negatively Associated
with Testosterone Levels in
Healthy Men
U. Joensen1, B. Veyrand2, J.-P. Antignac2,
N. E. Skakkebæk1, A.-M. Andersson1, B. Le Bizec2,
N. Jørgensen1
1Growth and Reproduction, Rigshospitalet, Copenhagen,
Denmark; 2Laboratoire d’Etude des Résidus et Contaminants dans les Aliments, LUNAM Université, Oniris,
Nantes, France
Background In animals, some perfluorinated
compounds (PFCs) have endocrine disrupting potential, but few studies have investigated PFC exposure in relation to testicular
function in humans. In a previous, smaller
study we found a significant negative association between serum PFC levels and number of normal sperm, but no significant association with reproductive hormone levels.
We aimed to investigate associations be-
tween PFC exposure and reproductive hormone levels and semen quality in a larger
group of healthy men.
Methods 247 men delivered serum and semen samples. Serum samples were analyzed
for total testosterone (T), estradiol (E), sex
hormone-binding globulin (SHBG), luteinizing hormone (LH), follicle-stimulating
hormone (FSH) and inhibin-B, as well as
content of 14 PFCs, including perfluorooctanesulfonate (PFOS). Semen samples
were analyzed according to WHO criteria.
Results In multivariate linear regression
models, PFOS levels were inversely associated with T, calculated free testosterone
(FT), free androgen index (FAI), and ratios
of T/LH, FAI/LH, and FT/LH (Fig. 17).
Other PFCs were detected at lower levels
than PFOS and did not exhibit the same associations. PFC levels were not significantly
associated with semen quality. PFOS levels
in these samples collected in 2008–2009
were lower in than in our previous study of
men participating in 2003 (Tab. 9).
Conclusion The negative associations between serum PFOS and testosterone confirm
trends observed in a smaller study, indicating that PFOS exposure may still contribute
to health risks associated with decreased testosterone, in spite of decreasing serum levels. In contrast, we could not confirm our
previous finding of decreased sperm mor-
Figure 17. U. Joensen et al. Estimated levels of testosterone (T), free testosterone (FT) and related hormone ratios for 5th percentile (4.28 ng/ML) and 95th percentile (14.6 ng/ML) of PFOS exposure. Adj. to BMI =
23.0 kg/m2 and no smoking.
J Reproduktionsmed Endokrinol 2012; 9 (5)
381
7th ECA-Congress – Abstracts
Table 9. U. Joensen et al. PFOS levels in the current study (247 samples collected 2008–
2009) were lower than in a previous study (105 men participating in 2003).
ECA – Abstracts
Selected percentiles
PFC ng/mL
Mean ± SD
5th
50th
95th
PFOS 2008–2009 raw
PFOS 2008–2009 a, b
8.46 ± 3.74
4.28
7.79
14.59
11.9 ± 5.26
6.02
11.0
20.5
PFOS 2003
25.3 ± 7.85
14.3
24.5
39.6
PFOA 2008–2009 raw
3.46 ± 1.99
1.83
3.02
6.15
PFOA 2008–2009 a, b
3.97 ± 2.28
2.09
3.47
7.05
PFOA 2003
4.80 ± 1.33
2.77
4.85
6.88
PFNA 2008–2009 raw
1.23 ± 0.63
0.64
1.07
2.41
PFNA 2008–2009 a, b
1.35 ± 0.70
0.70
1.17
2.66
PFNA 2003
0.89 ± 0.45
0.43
0.80
1.61
a
Adjusted for inter-Iaboratory difference btw. previous and current study
Statistically significant difference between 2003 levels and 2008–2009 levels. All p < 0.002 after adjustment for smoking, alcohol intake and age.
b
phology in the highest tertile of PFC exposure, possibly due to the lack of highly exposed individuals in this study.
P66
Psychological Impact of Fertility
Treatment among Malaysian Men
1
2
3
A. Y. Abdul Wahab , A. M. Zainuddin , R. Musa ,
A. F. Abdul Rahim3, H. Mohd Yatim1, S. K. Mohd
Bustaman2, N. Mohd Arifin1
1
Obstetrics & Gynaecology; 2Fertility Centre; 3Psychiatric, International Islamic University Malaysia, Kuantan,
Pahang, Malaysia
Introduction Mental stress has a reciprocal
relationship to infertility and it constitutes
many unknown reasons leading to the problems related to infertility. The impact of
physical and emotional stress can be detrimental to infertile couples especially during
the course of fertility treatment. Previous
studies indicated that emotional stress has a
negative impact on semen parameters. Our
aim was to investigate the relationship between psychological stress and semen quality among Malaysian men during fertility
treatment.
Materials & Methods This was a prospective study involving 122 male patients who
attended a fertility clinic from January to
June 2012. Patients were given questionnaires after seminal fluid analysis (SFA) test,
intrauterine insemination (IUI) procedure
and in vitro fertilisation (IVF) procedure.
The questionnaires was constructed to gather
data on patients’ demographics, medical history and consumption of tobacco. It also included the Depression, Anxiety and Stress
(DASS) test. Semen samples were collected
by coitus interruptus or masturbation and
were evaluated based on the World Health
Organization (WHO), 1999 criteria. Analysis was conducted using SPSS version 16.0
with Chi-square statistical tests with p-value
0.05 was considered significant.
Results The sample included 68 (55.7%)
patients who had undergone seminal fluid
analysis (SFA), 35 (28.7%) intrauterine in-
382
J Reproduktionsmed Endokrinol 2012; 9 (5)
semination (IUI) and 19 (15.6%) in vitro
fertilisation (IVF). There were 88 (72.1%)
normozoospermia, 31 (25.4%) oligozoospermia and 3 (2.5%) azoospermia. Psychological morbidities were mainly anxiety
(33.3%) followed by stress 12.3% (n = 15/
122) and depression 9.8% (n = 12/122).
There were significant differences in the
level of anxiety in patients with sperm volume
(p = 0.013) and sperm motility (p = 0.015).
All psychological morbidities had no effect
on sperm count and sperm morphology. No
statistical significant differences were seen
in the fertility investigation or treatment
(SFA/IUI/IVF) with all the sperm parameters. Patients with depression were associated with duration of infertility (p = 0.022).
Anxiety patients were related to occupation
(p = 0.013) and income (p = 0.030). Other
factors such as age, type of infertility and
level of education seem did not affect the
psychological morbidities on the sperm parameters.
Conclusions This study has shown that
psychological impact has affected the sperm
quality of Malaysian men especially in
sperm volume and motility.
P67
Clinical Evaluation of the Male
Partners of Infertile Couples:
A Waste of Time?
M. Walschaerts1, R. Mieusset1, 2, F. Isus1, 2, G. Massat2,
E. Huyghe1, 2, P. Plante2, L. Bujan1, 3, P. Thonneau4
1
Groupe de Recherche en Fertilité Humaine (EA 3694,
Human Fertility Research Group), Université de
Toulouse, UPS; 2Male Sterility Centre; 3CECOS MidiPyrénées, Toulouse, France; 4IRD, Tunisie, Tunisia
Introduction The male factor has rapidly
emerged as playing a major role in difficulties in conceiving, and is involved in 50% of
cases. Although development of intracytoplasmic sperm injection treatment allows
men to become fathers, management of male
infertility is not limited to semen evaluation.
Material & Methods We described andrological examination and sperm results in a
large retrospective cohort study including all
1672 couples consulting for infertility at the
Toulouse Male Sterility Centre from 2000
through 2004. Andrological investigation
included reproductive, surgical and medical
histories, and clinical evaluation.
Results In 85% of the 1672 men, at least
one andrological examination was abnormal:
21% had a history of infection, 13% a history
of cryptorchidism, 9% a surgical history, 4%
a history of testicular trauma, 23% an epididymal abnormality, 22% a varicocele, 20%
a scrotal abnormality and 4% a vas deferens
abnormality. Oligospermia was mainly associated with cryptorchidism or varicocele,
whereas azoospermia was related only to
epididymal abnormality. Abnormal testicular volume increased the risk of oligospermia
or azoospermia.
Conclusion Properly standardized clinical
evaluation is informative in diagnosing the
causes of male infertility in complement to
sperm analysis for clinicians who could better assist couples in management of male infertility, especially for treatment of particular clinical abnormalities, and in improving
the relationship between clinicians and patients.
P68
Development of Semen Quality
During Young Adulthood – Longitudinal Follow-up of 2 Finnish Cohorts
A. Perheentupa1, S. Sadov2, R. Rönkä2, H. E. Virtanen2,
M. Vierula2, J. Matomäki3, N. Jørgensen4,
N. E. Skakkebæk4, J. Toppari2, 3
1Department of Obstetrics and Gynaecology; Physiology; 3Department of Pediatrics, University of Turku,
Finland; 4University Department of Growth and Reproduction, Rigshospitalet, Copenhagen, Denmark
Introduction Objective of our research was
an assessment of trends in semen variables
during young adulthood (19–29 years).
Material & Methods Study is based on the
longitudinal follow-up of 2 cohorts of young
adult Finnish men. The study was conducted
in the University Andrology Research Unit
(Turku). 2 cohorts of voluntary men were
followed up from the age of 19 years till the
age of 29 years. Semen analysis of the participating men was performed at 2 to 5 year
intervals over a period of ten years (cohorts
A and B). Physical examination was carried
out at each visit to rule out any significant
andrological abnormalities. Main outcome
variables were semen volume, sperm concentration, total sperm count, motility and
morphology. Statistical results were also adjusted for the time of abstinence.
Results 336 men in the cohort A participated in the first round of the study, and in
the final 4th round 111 men were examined.
197 men attended the 1st visit in the cohort B,
and in the final 3rd visit 90 men were evaluated. Sperm concentration (median 60 and
50 million/mL in A and B, respectively at the
age of 19; 70 and 62 at the age of 29) did not
change significantly during follow-up. How-
ever, the total sperm count in the cohort B increased significantly from 172 million at 19
to 225 million at 29. The percentage of motile sperm increased (66 and 76 % motile
sperm in A and B at 19; 82 and 81 % at 29,
respectively). Percentage of sperm with normal morphology also increased during the
follow-up, as judged on the 61 men that participated in all 4 follow-up visits of the cohort A: 7.5 – 7.0 – 8.0 – 10.0 % at 19, 21, 24,
and 29 years of age. Adjustment for the time
of abstinence did not change outcome.
Conclusion(s) Full spermatogenic capacity is almost reached by the age of 19 years.
Both sperm motility and the percentage of
structurally normal sperm increase during
young adulthood. Furthermore, sperm production capacity also shows slight improvement. Thus, semen quality seems to improve between 19 and 29 years. Current abstract complements our previous data presented in Boston(Massachusetts) at the Endocrine Society’s Annual Meeting (ENDO)
in 2011.
P69
Testis and Epididymis Morphology
in Rats Treated with Soya Isoflavones From Prenatal Life until
Sexual Maturity
M. Marchlewicz1, I. Baranowska-Bosiacka2,
A. Grzegrzólka1, D. Szypulska1, A. Kolasa1,
A. Kondarewicz1, E. Duchnik1, B. Wiszniewska1
1
Department of Histology and Embriology; 2Biochemistry and Medical Chemistry, Pomeranian Medical
University, Szczecin, Poland
Introduction Xenobiotics with estrogen activity may have a significant influence on the
function of the male reproductive system.
Such xenobiotics are manufactured (e. g.
pesticides, polyphenols, organochlorines) or
are naturally present in the environment
(e. g. phytoestrogens). Phytoestrogens are
present especially in leguminous plants and
are divided into three groups: isoflavones,
lignans and coumestanes, of which isoflavones are the most common. Isoflavones
(genistein and daidzein), after entering the
body, may have estrogen-like action and can
be expected to exert biological effects at the
molecular, cellular or physiological level.
They possess ability binding to estrogen receptors (ERs), with higher affinity for ERb,
than for ERa. As natural selective estrogen
receptors modulators (SERM) can affect estrogen-regulated gene products.
However, in certain periods of life, male exposure to xenoestrogens may have an adverse effect, for example on the male reproductive system. The periods of particular
sensitivity are the fetal period and early infancy [9], when disruption of hormonal balance in favor of estrogens can lead to some
abnormalities in adulthood.
Objective This study aimed to determine
the influence of soy isoflavones (daidzein
and genistein) administered from prenatal
life to sexual maturity on testicular and epididymal morphology of rats.
Methods Pregnant Wistar rats received orally
soy isoflavones, daidzein and genistein at a
dose of 200 mg/kg/b.w./d. After separating
sucklings from their mothers, male rats received the same dose of isoflavones until
reaching the age of sexual maturity, i.e., for
3 mo.
Results The isoflavones induced changes in
the morphology of the seminiferous epithelium of rat testes. There were numerous,
strong PAS-positive, degenerated, without
lumen, shrunken seminiferous tubules with
destroyed arrangement of seminiferous epithelium, seminiferous tubules with sloughing of premature germ cells into the tubular
lumen. Infoldings of the tubular basement
membrane in some seminiferous tubules,
and deep invaginations of the lamina propria
with myoid cells were observed. However,
there were no significant changes in the morphology of the epididymis. The levels of estradiol in serum and cauda epididymis homogenates of rats receiving phytoestrogens were
significantly higher than in the control group.
No differences were observed in testosterone
concentrations in the serum of treated and
control rats. The testosterone levels in the
homogenates of the treated rat testes were
significantly lower than in the control group.
Conclusion The exposure of rats to
genistein and daidzein during intrauterine
life until sexual maturity influenced the morphology of testes in greater degree than the
morphology of epididymides.
P70
Perinatal Origins of Adult Leydig
cells and Function: Role of Developmental Androgens
K. Kilcoyne1, K. De Gendt2, N. Atanassova3,
S. Macpherson1, A. Dean1, S. van den Driesche1,
L. Smith1, R. Sharpe1
1
Centre for Reproductive Health, MRC Queens Medical Research Institute, Edinburgh, UK; 2KU Leuven,
Belgium; 3Institute of Experimental Morphology,
Pathology and Anthropology with Museum, Sofia,
Bulgaria
Introduction Several lines of evidence show
that human fetal events can adversely affect
adult testosterone levels, but precisely how
is unknown. Given the evidence that testosterone levels in men may be declining at
the population level in a birth cohort-related
fashion, this issue has added importance,
which this study addresses using experimental rodent studies. Adult Leydig cells (ALC)
are essential for normal spermatogenesis and
overall male health, but their developmental
origin is unclear. We identify a population of
fetal interstitial cells expressing Chicken
Ovalbumin Upstream Promoter-Transcription Factor II (COUP-TFII), essential postnatally for ALC development. We hypothesise these cells (3β-HSD–/AR+/COUPTFII+) are progenitor cells that differentiate
into ALC (3β-HSD+/AR+/COUP-TFII+) from
puberty onwards. We investigated the fetal
origins of these “progenitor ALC” and their
potential regulation by fetal androgens so as
to provide insight into how fetal events could
determine testosterone levels in adult men.
Methods Three approaches were used: (1)
complete androgen receptor (AR) knockout
(ARKO) mice, (2) dibutyl phthalate (DBP;
500mg/kg/day; e13.5–e21.5) exposed pregnant rats, in which fetal intratesticular testosterone is substantially reduced, and (3) dihydrotestosterone (DHT; 10mg/ml/kg e15.5–
e21.5) exposed pregnant rats, in which fetal
intratesticular androgen exposure may be increased. In these groups, the numbers of progenitor ALC were quantified in fetal life
through to adulthood, and related to ALC
number and function in adulthood.
Results Presumptive progenitor ALC (COUPTFII+/AR+) are abundant in the fetal testis in
human, marmoset, rat and mouse. In ARKO
mice, there was ~40% reduction in progenitor ALC number on pnd2 through to adulthood (p < 0.05). This was paralleled by a
similar shortfall in ALC (p < 0.05) and there
was also compensated ALC failure. In adulthood there was a significant correlation
(p < 0.0001) between progenitor and ALC
numbers. Similarly, fetal DBP exposure reduced progenitor ALC numbers by ~40% in
fetal and postnatal life and induced compensated ALC failure, although final ALC number was unaffected. Effects of fetal dihydrotestosterone exposure are currently under investigation.
Conclusion This study suggests that COUPTFII marks a population of cells in the fetal
testis from which ALC develop from puberty
onwards, and that the numbers of these cells
is regulated by fetal androgens. Altered fetal
androgen exposure also altered adult Leydig
cell function and although the mechanism is
unclear, we suggest this effect is mediated by
altered fetal androgen action on the ALC
progenitors. This adds a new dimension to
growing evidence that fetal androgen exposure may determine functional competence
of the adult testis and overall male reproductive health.
P71
Effects of Quercetin on mRNA Expression of Steroidogenesis Genes
in Primary Cultures of Leydig cells
Treated with Atrazine
S. Abarikwu1, A. Pant2, E. Farombi3
Department of Chemical Sciences, Redeemer’s University, Redemption City, Ogun State, Nigeria; 2Indian
Institute of Toxicology Research, Invitro Toxicology
Research Laboratories, Lucknow, India; 3University of
Ibadan, Drug Metabolism and Toxicology Research
Laboratories, Ibadan, Oyo State, Nigeria
1
The effect of the phytoestrogen, quercetin
(QT) on the reproductive toxicity of atrazine
(ATZ) was explored in interstitial Leydig
cells (ILCs). We measured the mRNA expressions of steroidogenesis genes in isolated ILCs by real-time-PCR after cultured
cells were treated in vitro with ATZ (232 µM)
and QT. The mRNA expression of tested
genes increased with ATZ treatment and was
normalized by quercetin except androgen reJ Reproduktionsmed Endokrinol 2012; 9 (5)
383
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
ceptor (AR) and estrogen receptor-alpha
(ER-α) expression. Treatment of cells with
QT alone (15–50 µM) caused a dose-dependent increase in AR and ER-á mRNA expression. The expressions of tested genes were
unaffected by cyclic-AMP at 6 h when the
stimulatory effects of ATZ on tested genes
were sustained. When cyclic-AMP was absent in the culture medium at 1 h of incubation, QT (50 µM), did not stimulate the expression of AR and ER-α except cycliccAMP was added, and increasing the concentration of cyclic-cAMP resulted in dosedependent expression of AR and ER-α.
These findings suggest that ATZ may stimulate the expression of tested steroidogenesis
genes via a mechanism independent of cyclic-AMP which was partially antagonize by
QT (Fig. 18, 19).
References:
1. Abarikwu SO, Farombi EO, Kashyap M, Pant
AB. Atrazine induces transcriptional change in
steroidogenesis marker genes in primary cultures
of rat Leydig cells. Toxicology in Vitro 2011; 25:
1588–95.
2. Pogrmic-Majkic K, Fa S, Dakic V, Kaisarevic
S, Kovacevic R. Upregulation of peripubertal rat
Leydig cell steroidogenesis following 24 h in
vitro and in vivo exposure to atrazine. Toxicological Sciences 2010; 118: 52–60.
P72
The Identification of Pre-diabetes
Condition with ARIC Algorithm,
Predicts Long-term CV Events in
Patients with Erectile Dysfunction
G. Corona1, G. Rastrelli1, A. Silveri1, M. Monami2,
A. Sforza3, G. Forti4, E. Mannucci2, M. Maggi1
1Sexual Medicine and Andrology Unit; 2Diabetes Section Geriatric Unit, Department of Critical Care, University of Florence, Florence; 3Endocrinology Unit,
Medical Department, Azienda Usl Bologna, Bologna;
4Endocrinology Unit, Department of Clinical Physiopathology, University of Florence, Florence, Italy
Question The
Atherosclerosis Risk in
Communities (ARIC) algorithm is one of the
most efficient instruments for the prediction
of incident type 2 diabetes (T2DM). Recently it has been shown to predict another
relevant cardiovascular (CV) risk factor,
Figure 18. S. Abarikwu et al. Effects of quercetin (QT) and atrazine (ATZ) on the
mRNA levels of steroidogenesis genes in cultured ILCs after a 6 h culture period.
384
J Reproduktionsmed Endokrinol 2012; 9 (5)
such as chronic kidney disease. The aim of
the present study is to verify whether, in patients with erectile dysfunction (ED), the use
of ARIC diabetes risk score might improve
the efficacy in predicting major CV events of
other CV risk algorithms specifically developed for the assessment of CV risk.
Methods A consecutive series of 2,437 men
(mean age 52.5 ± 12.9 years) attending our
outpatient clinic for sexual dysfunction was
retrospectively studied. A subset of this
sample (n = 1687) was enrolled in a longitudinal study (mean follow-up of 4.3 ± 2.6
years). Several clinical, biochemical (including testosterone) and instrumental (penile
color doppler ultrasound; PCDU) factors
were evaluated. The assessment of metabolic
risk was evaluated with the ARIC algorithm.
The assessment of CV risk was evaluated
using the Progetto Cuore risk engine.
Results In the cross sectional study ARIC
score was inversely related with reduced testosterone levels, worse sexual functioning
and reduced penile blood flow. When longitudinal sample was analyzed, higher baseline
ARIC score significantly predicted MACE
Figure 19. S. Abarikwu et al. Effects of quercetin (QT) and atrazine (ATZ) on the
mRNA levels of steroidogenesis genes in cultured interstitial Leydig cells in the presence of dbcAMP after a 6 h culture period.
7th ECA-Congress – Abstracts
P73
Semen Parameters in Estonian
Fertile Men
K. Pomm1, 2, K. Ehala-Aleksejev2, M. Punab1, 2
Department of Surgery; 2Andrology Unit, Tartu University Hospital, Tartu, Estonia
Table 10. K. Pomm et al. Clinical Findings of the Fertile Estonian Men.
Parameters
Mean ± SD
Median
Age (years)
32 (6.7)
31
Height (cm)
181 (6.2)
181
82
Weight (kg)
83.5 (13.2)
BMI
25.6 (3.8)
25
Testicular volume (ml)a
23.52 (4.8)
23.3
Genital and chronic diseases
– Varicocele, (n%)
– Cryptorchidism, n (%)
– Cryptorchidism operated, n (%)
– Testicular cancer operated, n (%)
– Chlamydia trachomatis, n (%)
– Ureaplasma urealyticum, n (%)
– HIV, n (%)b
– Diabetes, n (%)
– Hypertension, n (%)
– Hypothyreosis, n (%)
71 (25)
2 (0.7)
3 (1)
2 (0.7)
4 (1.4)
11 (3.9)
1 (0.4)
1 (0.4)
16 (5.7)
1 (0.4)
a
b
ECA – Abstracts
even when subjects with diabetes mellitus at
baseline were excluded from the analysis
(HR = ; 1.522 [1.086–2.135] p = 0.015 for
trend). In addition, among subjects classified
as “low-risk” (CV risk < 20% at 10 years
corresponding to < 9% at 4.3 years) by
Progetto Cuore, a ROC curve analysis for
ARIC (vs. MACE) allowed the identification
of a threshold of 0.22, which had a positive
predictive value for 4.3-year MACE of 9%.
Applying the ARIC score (with a threshold
of 0.22) to Progetto Cuore “low risk” subjects, we could classify as “at high risk”
89.8% of subjects with incident MACE vs
79.6% with Progetto Cuore only.
Conclusions In patients with ED, identifying pre-diabetes, even with algorithms, predicts long-term CV events.
Mean of left and right testis, measured by use of Prader’s orchidometer
Patient is on the antiviral treatment
1
Introduction Reduced semen quality is
commonly accepted as a major cause of
couple subfertility and infertility. The definition of male subfertility based on semen
analysis has been extensively discussed over
the last years. Recent (2010) WHO manual
for semen analysis includes for the first time
reference values for basic human semen parameters. As substantial regional differences
are well-known in semen quality in both fertile and general populations studied so far,
thus universal reference intervals should be
used with caution.
Therefore we undertook a study of reproductive parameters in fertile Estonian men –
partners of pregnant women – to analyze
suitability of WHO reference ranges for our
population and to compose a control group
for future studies on male reproductive diseases.
Material & Methods Male partners of pregnant women were invited, during 2010 and
2011, to participate in this study. A total of
3175 pregnant women got invitation for their
partners to participate in our study. 907
(28,6 %) men agreed to complete the questionnaire, modified version of European
study (Jørgensen et al. 2001) and 284 from
them (31,4%) also accepted to deliver semen
sample, blood for tests of reproductive hormones and basic biochemical profile, passed
STD tests, genital examination and analysis
of body composition. Three persons were
excluded from the study since the pregnancies were achieved after assisted reproduction. Therefore final number of study subjects was 281.
Semen analysis was performed according to
WHO 2010 guidelines. Physical examination of the male participants was performed
by two andrologists.
Results The mean age of the 281 men was
32 years. Basic clinical findings and genital
and chronic diseases are shown in Table 10.
Mean values and 5th–95th percentile of basic
semen parameters were as following: sperm
concentration 78 mill/ml and 12–235 mill/
ml; total sperm count 304 mill and 48–980
mill; progressive motility 52% and 28–70%;
normal morphology 10% and 2–20%.
There were significant differences in sperm
concentration, progressive motility and proportion of ideal spermatozoa and also FSH/
LH ratio and testosterone level between
groups of men categorized into TTP < 4 and
TTP > 12 months.
Conclusion Preliminary analysis indicates
that the results of basic semen parameters of
Estonian fertile men are in substantial accordance with WHO 2010 reference values.
References:
1. World Health Organization. WHO Laboratory
Manual for the Examination of Human Semen
and Sperm-Cervical Mucus Interaction. 4th ed.
Cambridge, United Kingdom: Cambridge University Press; 2010.
2. Jørgensen N, et al. Regional differences in semen quality in Europe. Hum Reprod 2001; 16:
1012–9.
P74
The Expression of Metalloproteinases 9 and 2, and their Tissue
Inhibitors 1 and 2 as a Potential
Markers of Asthenozoospermia
E. M. Kratz1, A. Kaluza1, B. Kowalska-Olejnik1,
M. Zimmer2, R. Fiutek3, M. Ferens-Sieczkowska1
1Department of Chemistry & Immunochemistry;
22nd Department and Clinic of Gynecology, Obstetrics
and Neonatology; 3Department of Diagnostics, Academic Hospital, Wroc³aw Medical University, Poland
Introduction 2 types of metalloproteinases:
MMP-9 and MMP-2, and their tissue inhibitors TIMP-1 and TIMP-2, have been studied
in human ejaculates [1, 2]. Our study was
aimed to examine the expression of MMP-9,
MMP-2, TIMP-1 and TIMP-2 in the differ-
ent groups of subfertile men. These parameters may contribute to further understanding of the mechanisms of male infertility
serve as additional diagnostic markers of semen quality and reproductive potential.
Material & Methods The ejaculates were
collected from men living in childless
couples, prepared for insemination. Seminal
plasma was obtained as a spare fraction of
the insemination procedure.
From 195 samples, 123 were normozoospermic, 15 oligozoospermic, 26 asthenozoospermic and 22 oligoasthenozoospermic, according to WHO criteria [3]. The reference
group enrolled apparently fertile normozoospermic men (n = 9).
In all the samples MMP-9, MMP-2, TIMP-1
and TIMP-2 levels were determined using
ELISA tests (R&D Systems), and the protein
level with Bradford’s method. The results
have been presented as the content of MMP/
TIMP [mg] per mg of the total seminal
plasma protein.
Statistical analysis was done using
STATISTICA 10.0 (StatSoft, Poland).
Results The expression of MMP-9 was elevated in all groups of childless men, when
compared to the fertile subjects. The difference occurred relevant in asthenozoospermic, but not oligozoospermic subjects. No
significant differences were found in MMP2 expression among all analyzed groups.
Both TIMP-1 and TIMP-2 level were lowered in all the groups of childless men when
compared to the physiological samples. In
normozoospermic, asthenozoospermic and
oligoasthenozoospermic groups the difference was significant for TIMP-1, and in normozoospermic and asthenozoospermic
groups for TIMP-2. The latter was also significantly lower in asthenozoospermic vs.
oligozoospermic group.
Conclusions Only MMP-2 expressed no
variability among the studied groups. The
J Reproduktionsmed Endokrinol 2012; 9 (5)
385
ECA – Abstracts
7th ECA-Congress – Abstracts
remaining three analyzed proteins expressed
some relevant difference between the fertile
and subfertile men, related rather to the reduced motility than the lowered count of
spermatozoa. Thus metalloproteinase activity and its regulation through endogenous
inhibitors may be involved in maintaining
the proper motility of sperm cells.
This study was supported by grant 5/Pbmn, and
by research fellowship within “Development program of Wroclaw Medical University” funded
from “European Social Fund, Human Capital, National Cohesion Strategy (UDA-POKL.04.01.0100-010/08-01)”.
References:
1. Baumgart E, Lenk SV, Loening SA, Jung K.
Hum Reprod 2002; 17: 2919–23.
2. Baumgart E, Lenk SV, Loening SA, Jung K. Int
J Androl 2002; 25: 369–71.
3. WHO laboratory manual for the examination
and processing of human semen, 5th ed., WHO
Press, 2010.
P75
The Impact of Paternal and Maternal Smoking on Reproductive
Parameters of Adolescent Men
J. Axelsson1, 2, L. Rylander1, A. Rignell-Hydbom1,
K. Ågren Silfver2, A. Stenqvist2, A. Giwercman2
1
Occupational and Environmental Medicine, Lund
University; 2Reproductive Medicine Centre, Skåne
University Hospital, Malmö, Sweden
Maternal smoking during pregnancy has been
found to have negative impact on the sperm
counts of sons. Sufficient data on the effect
of paternal smoking are lacking. We wished
to elucidate the impact of smoking (parental
during pregnancy and own) on reproductive
function of the male offspring. Semen parameters including sperm DNA integrity
were analyzed in 310 adolescents from the
general Swedish population. Serum was analyzed for reproductive hormones. Information on smoking was obtained from the
Swedish Medical Birth Register and questionnaires. The impacts of maternal, paternal
and own smoking were evaluated in a multivariate (I) model with all types of exposure
tested at the same time and in a stratified (II)
model with only those having one type of
exposure. For both models, paternal smoking was associated with lower sperm numbers, sperm concentration being 44% lower
(95%-CI: 16%, 62%) (model II) and total
sperm count 32%/50% lower (model I/II)
(95%-CI: [I] 6.3%, 51%, [II] 23%, 68 %).
Maternal smoking was only significantly associated with sperm concentration in model
II (36% lower [95%-CI: 3.0%, 58%]). We
conclude that paternal smoking during pregnancy was negatively associated with sperm
counts of the sons.
386
J Reproduktionsmed Endokrinol 2012; 9 (5)
P76
Spermatogonial Expansion in
Marmoset Testes
T. T. K. Tran1, N. M. Kossack1, J. Ehmcke1, 2, S. Schlatt1
1Centre of Reproductive Medicine and Andrology;
2Central Animal Facility of the Medical Faculty, University of Muenster, Germany
Introduction Problems at all stages of spermatogenesis contribute to human infertility.
We are aiming to elucidate whether male infertility can be related to dysfunction of
germline stem cells. Using marmosets (Callithrix jacchus) as a primate animal model
we want to explore the starting point and premeiotic expansion during spermatogenesis
byin vivoadministration andin vitroexposure
of BrdU and use of testicular organ culture.
Materials & Methods BrdU labeling: 6 adult
male marmosets received injections of BrdU
(IP, 100 mg/kg) either 2h (n = 3) or 11 days
(n = 3) before tissue collection. The testes
were dissected under sterile conditions and
some tissue was fixed in Bouin’s solution.
The remaining tissue was transferred into ice
cold Leibovitz medium for organ culture.
Organ Culture The testes are teased into tubule fragments which are placed onto membranes (pre size: 8 µm) in the interface of air
and medium and cultured for 2 hours and 1,
3, 5, 9, and 11 days in low-glucose DMEM
medium (supplemented with antibiotics and
non-essential amino acids) at 5% CO2, 35°C.
rhFSH and/or hCG were added to defined
wells. BrdU exposure (100 µM) occurred
constantly or for the last 2 hours prior to
fixation of the tissue.
Immunohistochemical staining of wholemounts and paraffine sections: An antibody
against BrdU was used to localize proliferating cells in cross sections (5 µm) by routine
immunohistochemical staining (fluorescence
or enzymatic). Whole mounts were subjected only to immunofluorescence.
Results Organ cultures with seminiferous
tubules revealed a goodin vitrosurvival as
the structure of tubules and the organization
of the seminiferous epithelium remained almost normal until day 11. Germ cells remained viable and progressed normally. A
subfraction of the Fractions of spermatogonial population and of the preleptotene spermatocytes are BrdU-positive and present as
many small cohorts of proliferating cells in
whole mounts. The analysis of sections and
whole mounts allows description of the spatial organization, numerical identification
and determination of labelling indices of
spermatogonial subpopulations. Meiotic and
postmeiotic germ cells were abundant while
the number of premeiotic germ cells declined
at later timepoints in organ cultures without
hormones. BrdU labeled cells could be
traced in organ cultures until postmeiotic
stages.
Conclusion We were successful in maintaining functional tissue for long periods in
organ culture. This provides us with an advanced approach and a new model to study
the initial events during spermatogenesis.We
evaluated that the clonal and spatial organization of proliferating cells in marmosets
mimics the situation in man showing a high
number of progenitor cells and no synchrony
in the initial division of premeiotic germ
cells.
P77
Oxidative Protein Damage and
Oxidative Stress Markers in the
Seminal Plasma of Subfertile Men
E. M. Kratz1, M. Ferens-Sieczkowska1, M. Zimmer2,
A. Piwowar3
1Department of Chemistry & Immunochemistry;
22nd Department and Clinic of Gynecology, Obstetrics
and Neonatology; 3Department of Pharmaceutical
Biochemistry, Academic Hospital, Wroclaw Medical
University, Poland
Introduction Although low levels of reactive oxygen species (ROS) are essential for
acrosome reaction and the other fertilisation
events [1], the oxidative stress is indicated
among the agents responsible for disturbed
male fertility. It is defined as disturbed balance between ROS and antioxidants, leading
to a damage of many macromolecules and
disruption of their function [1, 2].
Our aim was to estimate the efficiency of an
antioxidative system of seminal plasma: the
ability to reduce excessive free radicals by
endogenous antioxidants and the level of
oxidative protein damage markers.
Materials & Methods Semen samples of
normozoospermic (N; n = 123), oligozoospermic (O; n = 15), asthenozoospermic (A;
n = 26) and oligoasthenozoospermic (OA;
n = 22) men living in infertile couples were
obtained from patients, attending the clinic
for insemination procedure.
The spectrophotometric methods were applied to determine Ferric Reducing Antioxidative Power (FRAP) with ferric tripyridyltriazin complex [3], the level of Advanced
Oxidation Protein Products (AOPPs) with
potassium iodide [4], and the level of SH
groups with Ellman’s reagent [5].
Results The level of AOPPs was higher in
N and O groups and significantly decreased
in both A and OA seminal plasma. Moreover, the AOPPs concentration in OA group
was also significantly lowered when compared to A group. Similar distribution of values was found for the other marker of the
oxidative protein damage, the SH level.
The lowest antioxidative potential measured
by means of FRAP level was observed in the
A group. The value was slightly higher in the
OA samples and significantly increased in N
and O subjects. Decreased motility of sperm
may be thus related to the reduced antioxidative power, although in these samples the
proteins seem not to be so much affected
with the oxidative damage.
Conclusions The analysis of oxidative stress
and oxidative protein damage markers in
seminal plasma, have shown significant differences in AOPPs levels between analyzed
groups, thus indicates the potential useful-
ness of AOPPs in the identification of patients with different fertility problems and
may serve as preliminary diagnostic marker.
The Study was supported by research fellowship
within “Development program of Wroclaw Medical University” funded from “European Social
Fund, Human Capital, National Cohesion Strategy (UDA-POKL.04.01.01-00-010/08-01)”.
References:
1. Agarwal A, Makker K, Sharma R. Am J Reprod
Immunol 2008; 59: 2–11.
2. Makker K, Agarwal A, Sharma R. Indian J Med
Res 2009; 129: 357–67.
3. Benzie IF, Strain JJ. Anal Biochem 1996; 239:
70–6.
4. Witko-Sarsat V, Friedlander M, CapeillèreBlandin C, et al. Kidney Int 1996; 49: 1304–13.
5. Rice-Evans CA, Diploch AT, Symons MCR.
Techniques in free radical research. Elsevier
1991.
P78
Mixed Testicular Atrophy Related
to Atherosclerosis: Further Lessons from the ApoE(–/–)/LDL receptor(–/–) Double Knockout
Mouse Model
1
2
tolic velocity (PSV) of the testicular artery
(supratesticular) as well as PSV of intratesticular arteries was assessed by ultrasound.
Results KO mice exhibit diminished testis
and total vascular volume fraction with respect to that of controls. Data also provide
evidence for a change of total length, volume
and surface area of capillaries. These findings were associated with a reduction of testosterone levels. Mixed atrophy was present
in various seminiferous tubuli in KO mice at
the age of 80weeks. Sperm counts from the
epididymis demonstrated a significant decrease in KO mice.
In men PSV of the testicular artery was 8.0 ±
2.4 cm/sec, and 4.5 ± 1.3 cm/sec for intratesticular arteries.
Conclusions Mixed testicular atrophy in
KO mice is linked to reduced testis volume,
vascular volume fraction and low testosterone serum levels, suggesting a direct relation
between atherosclerosis and disturbed spermatogenesis.
Further evaluation of testicular perfusion in
human tissue is necessary to find possible
associations with TESE outcomes.
(DFG, KFO 181/2-Project 8).
3
K. Steinfeld , R. Middendorff , M. Kampschulte ,
A. Langheinrich4, G. Krombach3, T. Linn5, C. Mühlfeld6,
A. Pilatz1, A. Paradowska-Dogan1, B. Altinkilic 1,
M. Bergmann7, W. Weidner1
1
Department of Urology, Pediatric Urology and
Andrology; 2Department of Anatomy and Cell Biology;
3Department of Experimental Radiology, Justus-Liebig
University Giessen; 4Department of Functional and
Interventional Radiolog ,BGU Frankfurt, Frankfurt/M.;
5Department of Internal Medicine I, Justus-LiebigUniversity Giessen; 6Department of Functional and
Applied Anatomy, Medical School Hannover; 7Department of Veterinary Anatomy, Histology and Embryology, Justus-Liebig-University Giessen, Germany
P79
Effects of In Utero Exposure to
Environmental Agents on Human
Fetal Testis Development and
Function Using a Xenograft Approach
R. Mitchell1, A. Calarrao1, S. van den Driesche1,
C. McKinnell1, S. MacPherson1, R. Anderson1,
H. Wallace2, C. Kelnar2, P. Saunders1, R. Sharpe1
1MRC/UoE Centre for Reproductive Health, Edinburgh;
2Department of Oncology, Edinburgh Hospital for Sick
Children, UK
Introduction Age-related testicular changes
are associated with declining spermatogenesis and testosterone levels. A relationship to
atherosclerosis has never been investigated
systematically. The ApoE(–/–)/LDL receptor (–/–) double knockout (KO) mouse
model, providing a remarkable homology to
human atherosclerosis, is an ideal tool to investigate spermatogenetic alterations in this
context.
Material & Methods Mouse tissue: Paraffin
and EPON embedded as well as contrast
agent-perfused testes from KO mice and
wild-type mice at the age of 20, 40, 60 and
80 weeks were used. Contrast agent-treated
ones were scanned with micro-CT to quantify whole testis and total vascular volume
fraction. Subvolumes of the testes were also
analyzed. Total length, volume and surface
area of the capillaries were estimated in
semithin sections of EPON-embedded tissue
using computer program newCAST. Moreover, spermatogenesis was analyzed by spermatogenetic scores. Sperm counts were
quantified in the epididymis. Testosterone
levels were determined in serum.
Human tissue (clinical studies): In 30 patients undergoing testicular sperm extraction
(TESE) because of azoospermia, peak sys-
Background Disruption of the human fetal
testis by endocrine disruptors has been postulated as a cause of testicular dysgenesis
syndrome (testicular germ cell tumors, cryptorchidism, hypospadias, low sperm counts).
In-utero-exposure of rats to oestrogens, phthalates or paracetamol have demonstrated that
all reduce fetal testis testosterone production. We have shown that xenografting of
human fetal testis tissue results in normal
testis development/function and that this
represents a system in which to investigate
the effects of proposed endocrine disruptors
on testosterone production and testis development in the human fetus.
Objectives To determine the effect of exposure to diethylstilboestrol (DES), di-n-butyl
phthalate (DBP) and paracetamol on testosterone production and germ cell development in the human fetal testis using the
xenografting approach.
Methods We xenografted testis tissue from
human fetuses (14–20 weeks gestation, n = 3–
13) subcutaneously into castrate male nude
mice. Host mice were treated with DES
(0.1 mg/kg/day), DBP (500 mg/kg/day), paracetamol (350 mg/kg/day) or vehicle for 1–6
weeks. Testosterone production by the grafts
was determined by measurement of host
seminal vesicle (SV) weight and serum testosterone. Immunohistochemical analysis
was performed to investigate steroidogenesis and germ cell effects of treatments.
Results Host SV weights were significantly
reduced in paracetamol exposed grafts compared to vehicle exposed controls (9.87 vs
7.63 mg, p = 0.01), whereas exposure to DES
or DBP had no effect on testosterone production as indicated by host animal SV weight,
serum testosterone or 3b-HSD expression.
Testosterone independent effects that altered
germ cell numbers or aggregation were
found in the DBP exposed xenografts, whilst
the germ cell effects of exposure to DES and
paracetamol are currently under investigation and will also be presented.
Conclusions These results suggest that testosterone production by the human fetal testis
may be reduced by in-utero-exposure to
paracetamol but not by exposure to DBP or
DES; testosterone-independent germ cell
effects can also occur. These results have important health and regulatory implications
for determining the risk of in-utero exposure
to these agents and also show that the rat may
not always prove a reliable model for human
fetal testis effects.
P80
Non-Linear Association between
Androgen Receptor CAG Repeat
Length and Reproductive Parameters in Fertile European and
Inuit Men
L. J. Brokken1, L. Rylander2, B. A. Jönsson2, M. Spano3,
H. S. Pedersen4, J. K. Ludwicki5, V. Zviezdai6, D. Bizzaro7,
G.-C. Manicardi8, G. Toft9, J. P. Bonde10, A. Giwercman1,
Y. Lundberg Giwercman1
1Molecular Reproductive Medicine, Lund University,
Malmö; 2Division of Occupational and Environmental
Health, Lund University, Lund, Sweden; 3Laboratory
of Toxicology, ENEA Casaccia Research Centre, Rome,
Italy; 4Centre for Arctic Environmental Medicine, Nuuk,
Greenland; 5Department of Environmental Toxicology,
National Institute of Public Health, Warsaw, Poland;
6Kharkiv National Medical University, Social Medicine
and Organisation of Public Health, Kharkiv, Ukraine;
7Istituto di Biologia e Genetica Università Politecnica
delle Marche, Ancona; 8University of Modena and
Reggio Emilia, Reggio Emilia, Italy; 9Department of
Occupational Medicine, Aarhus University Hospital;
10Department of Occupational and Environmental
Medicine, Copenhagen University Hospital,Denmark
Introduction Male reproductive function is
critically dependent on androgen action. It is
generally assumed that there is an inverse
linear association between parameters of
male reproductive function and androgen receptor (AR) CAG /GGN repeat lengths. Recent experimental data as well as analyses of
AR genotype in relation to fertility status,
cryptorchidism and hypospadias risk have
challenged this view. We have now aimed to
analyse the pattern of association between a
broader range of parameters of male reproductive function and AR CAG/GGN repeat
length in fertile men.
J Reproduktionsmed Endokrinol 2012; 9 (5)
387
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
Material & Methods Semen and blood
were collected from 587 partners of pregnant
women from Greenland, Warsaw (Poland),
and Kharkiv (Ukraine). A total of 21 reproductive parameters including serum hormone levels, semen characteristics, and markers of accessory sex gland function were
measured. CAG and GGN repeat lengths
were determined by direct sequencing of leukocyte DNA. CAG and GGN lengths were
categorised (CAG: ≤ 21, 22–24, ≥ 25; GGN:
≤ 22, 23, ≥ 24) and the associations between
CAG/GGN category and reproductive markers were analyzed in a linear regression
model, adjusted for country, age and abstinence period. Non-linear relationships were
visually confirmed using a penalised spline
regression model, which adjusts to the distribution of the data and not an á priori given
model.
Results Following categorisation of the
CAG and GGN lengths, in comparison to the
reference CAG length (22–24), the short
CAG (≤ 21) group had statistically significantly higher levels (mean difference (β) ±
SD, 1.18 ± 1.07 mg/ejaculate; p = 0.021) of
seminal prostate-specific antigen (PSA). The
same was true for neutral α-glucosidase
(NAG) (β ± SD, 1.17 ± 1.06 mU/ejaculate;
p = 0.007), DNA fragmentation index (β ±
SD, 1.19 ± 1.07%; p = 0.007) and expression
of the apoptosis marker FAS (β ± SD, 6.72 ±
3.35% positive cells; p = 0.045). In the long
CAG (≥ 25) group increased levels of estradiol (β ± SD, 1.11 ± 1.04 pmol/L; p = 0.011)
and NAG (β ± SD, 1.29 ± 1.07 mU/ejaculate;
p < 0.001) were seen. No significant associations were found between GGN and the
markers when compared to the median
length of 23. No interactions between CAG
and GGN in relation to the reproductive
markers were observed. A linear association
was only found between inhibin and GGN
length (β ± SD, -5.74 ± 2.23 ng/L; p = 0.020).
Conclusion These data confirm the hypothesis that, at least, for some markers of male
reproductive function the association with
CAG lengths is non-linear.
P81
Differentiation of Seminal Leukocyte Subpopulations by Flow
Cytometry
S. Stoetzel1, A. Pilatz1, M. Lohmeyer2, T. Diemer2,
F. Wagenlehner1, J. Lohmeyer2, W. Weidner1,
T. Linn3, H.-C. Schuppe1
1 Department of Urology, Pediatric Urology and
Andrology; 2Department of Internal Medicine II;
3Department of Internal Medicine III, Justus-LiebigUniversity Giessen, Germany
Introduction & Objective Infections and
inflammation of the male genital tract are
known to affect reproductive function. The
presence of peroxidase-positive (pox+) leukocytes as well as polymorphonuclear (PMN)
elastase in the ejaculate have been established as surrogate diagnostic markers. To
date, however, systematic investigations
concerning the prevalence and putative sig-
388
J Reproduktionsmed Endokrinol 2012; 9 (5)
nificance of different subpopulations of
seminal immune cells are scarce. Therefore,
we analyzed the distribution of leukocyte
subpopulations in human semen measured
by flow cytometry (FACS) in men with and
without genital tract inflammation.
Methods In this study*, semen samples of
96 men from different clinical collectives
were included: patients undergoing andrological work-up for infertility or various urogenital pathologies (n = 58); patients with
HIV infection (n = 25), patients with metabolic syndrome (n = 6), and men before vasectomy (n = 7).
From each patient an aliquot of native ejaculate (500 µl) was prepared for FACS analysis. Cells were fixed with paraformaldehyde
(in PBS) and stained with specific directfluorescent antibodies (CD45; CD14; CD24;
CD3; CD181) in order to identify seminal
leukocytes and their subpopulations. Cells
were counted by BD FACSCanto™ Flow
Cytometer and the obtained data were analyzed with FACSDiva 6.1.3.
Results CD45+ leukocytes were detected in
a wide range of 0.5–90% of total cell counts
(median 19); these results correlated with
pox+ cell counts and seminal PMN elastase.
Among CD45+ cells, the most frequent cell
type were PMN (36%) followed by macrophages (13%), and lymphocytes (3%). This
overall distribution pattern of seminal immune cells was found in all investigated
groups including HIV-infected men, independent of the categorization of samples according to pox+ cell counts or elastase levels. However, the detection rate of leukocyte
subpopulations showed a wide variation
across the samples; in individual specimens,
the proportion of macrophages exceeded or
equalled that of PMN, whereas samples with
significantly higher numbers lymphocytes
are rare.
Conclusions Our results confirm previous
reports, that PMN represent the dominant
leukocyte subpopulation in the majority of
human semen samples of different clinical
origins. Other patterns are observed only in a
minor subset of patients. Further FACS
analyses including “functional” markers as
well as correlation of the data with other parameters used to detect genital tract inflammation, i.e. cytokines, might allow to define
profiles for specific urogenital tract disorders.
* Supported by LOEWE (excellence initiative of
the state government of Hessen, Germany) focus
group MIBIE (Male Infertility during Infection
and Inflammation) and a start-up funding of the
medical faculty (A.P.)
P82
Comparative Analysis of Morphological Changes in Mice Testes
Omparative Analysis of Morphological Changes in Mice Testes
Following Nano- and Micro-Dispersed Manganese Oxide (III, IV)
Effect
O. V. Lebedinskaya1, N. V. Zaitseva1, M. A. Zemluanova1,
V. N. Zvezdin1, S. V. Melekhin1, E. V. Saenko2,
A. V. Tarantin1, R. R. Makhmudov4, T. I. Akaf’eva4
1
Federal State Science Establishment, Federal Scientific Centre for Medical and Preventive Health Risk
Management Technologies; 2Institute of Technical
Chemistry, RAS Ural Branch, Perm, Russia
Due to growing contacts of a human to nanomaterials including nanoparticles of heavy
metals that are common in environmental
objects there are arising highly topical problems of their effect on different organs and
reproductive ones in particular.
The aim of work was the comparative analysis of testes alterations as a result of oral administration of nano- and micro-dispersed
manganese oxide (III, IV).
Synthesis of nano-dispersed manganese oxide
(III, IV) solution was carried out in the Laboratory of Multiphase Disperse Systems at the
Institute of Technical Chemistry, UB RAS.
Determination of particle concentration in a
solution was made in the Analytical Laboratory for Nanomaterials and Physical Factors
at the Department of Chemical-Analytical
Methods of Investigations (“Federal Scientific Centre for Medical and Preventive
Health Risk Management Technologies”).
Aqueous micro-dispersed solution of manganese oxide (III, IV) was used for comparison.
Experiment used 30 wild-type male white
mice with the mass of 27 ± 2 g (M ± m) were
divided in 3 groups (each with 10 animals).
Nano-dispersed manganese oxide (III, IV)
was once orally introduced via probe to mice
of the 1st group.
Mice from the 2nd group received micro-dispersed manganese oxide (III, IV) while complying with similar conditions. Both substances were used in a dose of 3500 mg/kg in
the form of aqueous solution. Animals of the
3rd group (control) received water in the same
way based on the same calculations. Period
of observation was 14 days. Histological
sections of mice gonads (from all of 3 groups)
were stained with hematoxylin and eosin.
Following the application of micro-dispersed
manganese oxide the spermatogenesis did not
significantly differ from the standard values
in most sections of convoluted seed tubules.
The spermatozoon number was reduced in the
minority of slices. Moderate expansion and
plethora of large blood vessels was observed.
Leydig cells were located as small clusters in
interstitial connective tissue.
After the administration of nano-dispersed
manganese oxide the number of mature gametes in convoluted seed tubules was found
to be sharply lowered as compared with the
previous group.
In addition, there were tubules with cell dissociation, sustentocyte detachment from
basal membrane and spermatogonia number
decrease. Marked widening and plethora of
not only large but microcirculatory bed vessels was noticed. Leydig cells were less detected and were located in isolation. Therefore, single oral introduction of nano-dispersed manganese oxide (III, IV) to mice resulted in more pronounced changes in mice
testes such as spermatogeny suppression and
marked vascular disorders.
 Postersession 5: Genetics
and Epigenetics
P83
Mutation Studies in the CFTR
Gene in Asian Indian Subjects
with Congenital Bilateral Absence
of Vas Deferens: Report of 2 Novel
Mutations and 4 Novel Variants
K. Sachdeva
HCG Hospital, Jalandhar, India
Background Congenital bilateral absence
of vas deferens (CBAVD) is a form of male
infertility in which mutations occur in the
cystic fibrosis transmembrane conductance
regulator (CFTR) gene. The molecular basis
of CBAVD is not completely understood,
especially in developing countries.
Methods We characterized the mutations/
variants in the CFTRgene by single strand
conformation polymorphism followed by sequencing in 35 CBAVD patients. None of
the patients had systemic manifestations of
cystic fibrosis. Fifty normal subjects were
studied as controls.
Results Mutations/variants in CFTR gene
were found in all CBAVD patients. 5 mutations and 10 variants were detected in 35 patients. The most frequent severe mutation was
F508del (34.2%) and most common variant was
IVS8-5T (54.2%). 2 novel severe mutations
(p.E217Gfs*11 and p.A1285V) and 4 novel
variants (pT438A, c.4095þ30insCT, c.-737G
> A, and c.2909-92A > G) were detected.
Conclusion The protocol for identification
of mutations in cases of CBAVD in developing countries would have to include a different set of mutations than those reported from
western countries.
P84
Molecular Analysis of Sex Chromosomes in 47,XYY Men and Patients
with Klinefelter’s syndrome and/or
Sex Chromosome Polysomy
V. Chernykh, L. Kurilo , O. Ryzhkova, E. Bliznetz,
A. Chukhrova, A. Polyakov
Research Centre for Medical Genetics, Russian Academy of Medical Sciences, Moscow, Russian Federation
We evaluated 59 males, among them 50 Klinefelter’s syndrome (KS) patients with following karyotypes: 47,XXY (n = 42), 47,XXY,
t (3;8) (q23;p21) (n = 1), 47,XY+derX (n =
1), mos 46,XY/47,XXY (n = 3), 48,XXYY
(n = 1), mos 47,XXY/48,XXXY/46,XY (n = 1),
mos 46,XX/47,XXY (n = 1); 4 mosaics with
disomy or polysomy Y (mos 45,X/46,XY/
47,XYY (n = 2), mos 45,X/46,XY/47,XYY/
48,XYYY, mos 45,X/46,XY/47,XYY/48,XYYY/
49,XYYYY); and 5 47,XYY infertile men.
Chromosome analysis was performed using
standart GTG-staining technique. Molecular
study included the analysis of AZF microdeletions (PCR amplification of 19 STS loci
of the Y chromosome) and CAG-repeat of
exon 1 of the Androgen Receptor (AR) gene,
and X chromosome inactivation (XCI) assay.
Y chromosome microdeletions were detected
in 8 of 59 (13.6%) patients. Ñomplete AZFñ
(b2/b4) deletion was found in 2 mosaics
(mos 45,X/46,XY/47,XYY and mos 45,X/
46,XY/47,XYY/48,XYYY). No “classic”,
complete Y chromosome microdeletions and
incomplete (partial) AZFa and AZFb deletions were detected in KS patients. Partial
AZFc deletions (b2/b3, n = 4; gr/gr, n = 1;
delsY1197 and sY1206, n = 1) were found in
6 of 50 (12%) KS patients including
48,XXYY patient, also in 1 of 5 47,XYY infertile men and in the patient with mosaic
tetrasomy Y. AZFc deletions were detected
in 4 of 9 individuals who had cell line(s) with
≥ 2 Y chromosome in the karyotype.
AR CAG-repeats number varied from 16–30,
but alleles with 26–30 (high) repeat number
were detected in 16% KS patients. Homozygosity and heterozygosity for AR-allele were
revealed in 16 and 27 of 43 individuals presented two and more X chromosomes in the
karyotype, respectively. XCI analysis was
done in 20 heterozygous KS patients. Skewed
XCI with the rate 70–80% was found in 15%
47,XXY individuals. Furthermore 20% examined KS patients presented XCI rate that
near to skewed (67-69%).
Klinefelter syndrome is not associated with
“classic” AZF deletions. Relatively high
prevalence of partial AZFc deletions in KS
and di-/polysomy Y is requires further large
cohort studies. No strong correlation was revealed between KS patients with or without
Y chromosome microdeletions, normal or
longer AR CAG-alleles, and random/skewed
XCI. However less severe spermatogenesis
defects (oligozoospermia) was detected only
between KS patients with normal CAG-repeats, not-skewed XCI and with no AZF deletion. The patients with higher number of
AR CAG repeat, skewed XCI or Y chromosome microdeletions presented secretory
azoospermia.
P85
Human Catalase c-262t Polymorphism and Male Infertility
S. Saboohi, Z. Salehi, M. H. Bahadori
Faculty of Science, Guilan University, Iran
Purpose Infertility is an inability to con-
ceive after one year of unprotected intercourse. Male factor is solely responsible
nearly 50%. It has been reported that reactive
oxygen species contributed to pathogenesis
of various disease. To inactivate ROS cells
biosynthesize several antioxidant enzymes,
One of them is Catalase which contributes
H2O2 to H2O and O2. The aim of this study
was to investigate the association of Catalase
C-262 T polymorphism with male infertility.
Methods Inthis study we evaluated the distribution of a functional polymorphism in
the gene for Catalase C-262T SNP in northern Iran. The study included 51 patients and
42 healthy volunteers. Genomic DNA was
prepared from peripheral blood leukocytes.
Genotypes and allele frequencies were determined in patients and controls using allelespecific PCR (AS-PCR).
Results Statistical analysis has not emerged
significance differences from the comparison of either genotype (p > 0/05).
Conclusion We conclude that the catalase
gene -262C >T polymorphism does not
conter a protective effect with respect to
male infertility.
P86
Molecular Markers of Male Infertility: Single Nucleotide Polymorphism of Protamine-1 and -2 Genes
and Human Sperm Protamine
Deficiency
A. Kazienko1, 2, A. Rymaszewska3, K. Gill1,
D. Gaczarzewicz4, R. Kurzawa2, M. Laszczyñska1,
M. Fraczek5, M. Kurpisz5, M. Piasecka1
1Department of Histology and Developmental Biology;
2Department of Reproductive Medicine and Gynecology, Pomeranian Medical University Szczecin; 3Department of Genetics, University of Szczecin; 4Department
of Animal Reproduction, Biotechnology and Environmental Hygiene, Szczecin West Pomeranian University of Technology; 5Department of Reproductive Biology and Stem Cells, Institute of Human Genetics,
Polish Academy of Sciences, Poznan, Poland
Introduction Male infertility can be associated with sperm chromatin abnormalities resulting from abnormal nucleotide sequence
of protamine genes (PRM1, PRM2), expression of these genes and translation of the
protamines. The defects lead to protamine
deficiency and can trigger the decrease of
fertilizing ability of sperm cells and impair
development of embryo in natural and assisted procreation or cause spontaneous recurrent abortion. The purpose of this research was to determine the incidence of
spermatozoa with abnormal protamination
and to find single nucleotide polimorphisms
(SNPs) in PRM1 and PRM2.
Material & Methods The study was performed on ejaculated spermatozoa of men
with normal (n = 173) and abnormal (n = 189)
standard sperm parameters (WHO 2010).
The sperm protamine deficiency was studied
by means of chromomycin A3 (CMA3) and
was identified with a fluorescence microscope. DNA samples were extracted from
semen samples. Sequencing of PCR products of the genes revealed 2 SNP in PRM1
(c.-190C > A, rs2301365, promoter region;
c.139C > A, rs737008, exon 2, synonymous
J Reproduktionsmed Endokrinol 2012; 9 (5)
389
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
polymorphism, p.Arg47Arg) and 1 SNP in
PRM2 (c.*62G > C, rs79674436, 3’UTR).
Results The proportion of CMA3-positive
sperm cells was significantly higher in men
with abnormal sperm parameters as compared
to subjects with normal sperm characteristics
(23% vs 19%; Mann-Whitney test). A significant negative correlation (Spearman rank correlation) was found between the incidence of
sperm showing deprotamination and sperm
concentration, morphology and motility. In
the case of c.-190C > A 41.49% and 44.79%
were homozygous (CC), 38.30% and 43.75%
were heterozygous (CA), 20.21% and
11.46% were heterozygous (AA) type, in the
c.139C > A 4,44% and 6.67% were CC,
37.78% and 30.0% were CA, 57.78% and
63.33% were AA type and in the c.*62G > C
97.46% and 97.52% were GG and 2.54% and
1,24% were GC type in men with normal and
abnormal sperm characteristics, respectively.
In the case of c.-190C > A among man with 1–
25% and with > 26% CMA3-positive sperm
cells 38.89% and 30.43% of subjects were
characterized by the CC genotype, 41.67% and
52.18% were CA, 19.44% and 17.39% were
AA, in the case of c.139C > A 4.17% and
2.18% were CC, 34.72% and 23.91% were CA,
61.11% and 73.91% were AA, respectively.
Moreover, in the case of c.*62G > C among
man with 1–25% and with > 26% CMA3positive sperm cells 98.61% and 93.48% of
subjects were carriers of the GG genotype,
1.39% and 6.52% were GC, respectively.
Conclusions This preliminary report suggests that low sperm parameters seems to be
accompanied by sperm chromatin defects
expressed as abnormal DNA protamination.
It should be emphasized that rare polymorphism c.*62G > C causing disturbances of
protamine translation was identified mostly
in man with > 26% CMA3-positive cells.
P87
From Sperm to Early Embryo
Stages: Potential Functions of
Acetylated-Histone-Bound Genes
for Idiopathic Male Infertility (a
Bovine Model)
Y. Yang1, G. Sarode1, S. Birgit2, K. Stefan3, H. Blum3,
E. Wolf3, 4, A. Wehrend5, W. Weidner6, K. Steger1,
U. Schagdarsurengin1
1
Molecular Andrology, Department of Urology, Pediatric Urology and Andrology; 2Department of Biometry
and Population Genetics, Justus-Liebig-University
Giessen; 3Gene Centre; 4Department of Molecular
Animal Breeding and Biotechnology, LudwigMaximilian-University Munich; 5Clinic for Obstetrics,
Gynecology and Andrology of Large and Small Animals; 6Department of Urology, Pediatric Urology and
Andrology, Justus-Liebig-University Giessen, Germany
Introduction Microarray studies revealed
that nucleohistones in spermatozoa associate
with gene promoters relevant for early development. We suggest that epigenetic aberrations in sperm cause incorrect post-fertilisation gene activation and may explain the idiopathic male infertility. Here we aimed to identify relevant risk genes using a bovine model.
390
J Reproduktionsmed Endokrinol 2012; 9 (5)
Material & Methods Immunohistochemistry
(IHC) was applied to confirm histones in bovine sperm. Native chromatin immunoprecipitation (NChIP) and ChIP-Sequencing
were performed to view the overall histonebound gene status in bovine sperm. Histones
and protamines in NChIP fractions were detected by western blot. Cross-linked ChIP
(XChIP) against H3K9ac and ChIP-Seq
were performed to preselect risk genes.
mRNA expression and promoter methylation status of selected genes in bovine germ
cells and early embryos were analyzed by
qRT-PCR and combined bisulfite restriction
analysis (COBRA). Single-nucleotide polymorphism (SNP) analyses were used to determine the paternal allele expression in zygote. Histone-bond relations and promoter
methylation status of bovine imprinted genes
were also analyzed.
Results Nucleohistones in bovine sperm
were confirmed by IHC. Western blot also
confirmed the presence of histones and protamines, respectively, in the appropriate
NChIP-fractions. Preliminary NChIP result
showed that 5–10% of DNA is related to histones in bovine sperm. Subsequent ChIP-Seq
data reveal an enrichment (80%) of histoneassociated DNA within intragenic regions (repetitive sequences, non-coding regions). 20%
of mapped DNA show association to gene regions, thereof 5% to gene promoters. Analyzing DNA-enrichment on H3K9ac, we identified in bovine sperm first candidate risk genes
for early embryo development including several Ca2+- and apoptosis-regulators. 10/12
analyzed genes exhibited CpG-promoters and
seven of them were unmethylated in bovine
sperm. qRT-PCR showed that ten genes are
expressed already in the zygote stage and SNP
analyses confirmed the paternal allele expression. Methylation analyses on bovine imprinted genes with CpG- promoters showed
that maternal imprinted H19 and MEG3 have
highly methylated, MEST and IGF2R unmethylated promoters in sperm. All analyzed
paternal imprinted genes with CpG-promoters (PEG10, IGF2, NNAT, NAP1L5 and
XIST) were unmethylated. Especially, IGF2
and IGF2R showed association of their promoters to histones.
Conclusions Our study confirms the hypothesis that sperm histones tag genes activated
in early embryos and presents the first candidate risk genes for early development. These
genes will be validated in further studies on
human fertile versus infertile sperms.
and steroidogenesis. Male Nr5a1 null mice
exhibit adrenal agenesis and testicular dysgenesis. Mutations in NR5A1 have first been
described in patients with primary adrenal
insufficiency and 46,XY disorders of sexual
development (DSD) and recently also in men
with hypospadias, bilateral anorchia and micropenis as well as women with primary ovarian insufficiency. In 2010, Bashamboo et al.
found missense mutations in NR5A1 in 4%
of infertile men with unexplained reduced
sperm counts. Since all mutation carriers
found were of non-European ancestry, we
performed a comprehensive mutation analysis in a large group of infertile German men.
Subjects & Methods NR5A1 was sequenced
in 488 patients who attended the Department
of Clinical Andrology, Centre of Reproductive Medicine and Andrology, University
Clinic Muenster, a tertiary-referral centre for
infertility. Only patients with severe oligozoospermia (sperm concentration < 5 Mill./ml,
n = 218) or azoospermia (n = 270) were included. Major causes for male infertility
(karyotype anomalies, Y-chromosomal AZF
deletions, oncologic disease and/or chemo-/
radiotherapy) were excluded. To explore an
association of NR5A1 mutations and disturbances of testicular decent, patients with history of maldescended testes were included
(n = 186).
Results 5 previously undescribed NR5A1
mutations were found in the 488 patients
(1%). All were missense mutations leading
to amino acid substitutions and predicted to
be damaging to SF1 protein function. 3 were
found in men with severe oligozoospermia
(3/218, 1.4%) and 2 in those with azoospermia (2/270, 0.7%). One mutation (c.493G >
C, p.Gly165Arg) was found in a man with
azoospermia caused by complete bilateral
meiotic arrest seen in his testicular biopsy.
One patient carrying a different mutation
(c.968T > C, p.Ile323Thr) had severe oligozoospermia with a sperm concentration of
0.2 Mill./ml. Interestingly, one mutation –
c.769G > A, p.Asp257Asn – was found
recurringly in 3 patients. While 2 of these
men had severe oligozoospermia and 1 had
azoospermia, all three had cryptorchidism
(2 bilateral, 1 unilateral) as children. No mutations in NR5A1 were found in 237 normozoospermic controls.
Conclusions Missense mutations in NR5A1
can be considered a novel cause for spermatogenic failure with the phenotypic spectrum encompassing cryptorchidism, severe
oligozoospermia and azoospermia.
P88
Mutations in the NR5A1 Gene
Encoding Steroidogenic Factor 1
Cause Spermatogenic Failure
The study was supported by the Deutsche Forschungsgemeinschaft (Grant TU 298/1-1 and 1-2
to F.T.).
Reference:
1. Bashamboo et al. Human male infertility associated with mutations in NR5A1 encoding steroidogenic factor 1. Am J Hum Genet 2010; 87:
505–12.
F. Tüttelmann1, A.-C. Tewes1, A.-L. Bröcher1,
S. Kliesch2, P. Wieacker1, A. Röpke1
1Institute of Human Genetics; 2Centre of Reproductive
Medicine and Andrology, University of Muenster,
Germany
Introduction The Steroidogenic Factor 1
protein (SF1), encoded by the NR5A1 gene,
plays a central role in gonadal development
7th ECA-Congress – Abstracts
D. G. Lo Giacco1, E. Ars1, P. Ruiz1, L. Bassas2, S. Joaquim2,
O. Rajmil2, E. Ruiz Castañé2, C. Krausz1, 3
1Molecular Biology Laboratory; 2Andrology Service,
Fundació Puigvert, Barcelona, Spain; 3Andrology Unit,
University of Florence, Italy
Introduction The Y chromosome is singular for the accumulation of a high proportion
of segmental duplications which provides
the structural basis for the generation of
CNVs. AZF deletions are the most common
molecular genetic cause of male infertility
and it became a routine diagnostic test in
severe oligozoospermia/azoospermia. The
AZFc region is particularly prone to rearrangements affecting gene dosage inside this
region.gr/grdeletion (a type of partial AZFc
deletion) has been proposed as genetic risk
factor for impaired spermatogenesis mainly
in Caucasian populations. The role of partial
AZFc duplications remains unexplored since
data are restricted to the Italian and Chinese
populations. Here we present a comprehensive analysis of Y-linked CNVs in Spain.
Materials & Methods 754 patients were
screened for Y microdeletions (according to
the EAA Guidelines). 288 idiopathic infertile and 241 normozoospermic controls were
tested for partialAZFc deletions/duplications. The screening for partial deletions/duplications was performed through STS ±
analysis followed by quantitative/qualitative
analysis of DAZ and CDY1 copies. Y haplogroup definition was performed by analysing
6 binary markers.
Results Y microdeletions were found in
3.3% of the patients. The highest frequency,
8.5%, was found in idiopathic azoospermic
men.gr/grdeletions were significantly more
frequent in patients versus controls (4.2%
and 1.5% respectively; p < 0.05) while b2/b3
deletions were detected only in patients.
DAZ/CDY1gene dosage and RFLP analysis
allowed to determine: (1) a significantly
higher frequency of subjects with 2 DAZ
copies in the infertile group (p < 0.05); (2)
the lack of association of specific DAZ/
CDY1copy combinations with semen phenotype. Although the frequency of partial
duplications was higher in patients (5.3%)
than in controls (3%), the difference was not
significant. A Y haplogroups distribution
was similar between cases and controls allowing to rule out population stratification
bias.
Conclusions This is the largest screening
for Yq microdeletions performed in a study
population attending an infertility clinic in
Spain providing conclusive data on the
prevalence of this genetic anomaly. gr/gr deletion resulted a significant risk factor for
infertility also in Spain. In addition, the
AZFc gene dosage allowed us to establish
that: (1) the reduction ofAZFc gene copy
number independently from the type of partial deletion has a significant impact on spermatogenesis; (2) increased gene dosage is
more frequent in infertile men, supporting
the hypothesis about the importance of “optimal” gene dosage. Further enlargement of
the study population is ongoing in order to
obtain conclusive data also on the role of
AZFc partial duplications in spermatogenesis.
P90
The PARP2 Gene is Associated
with Male Subfertility and Prostate Cancer Protection
M. Bentmar Holgersson1, Y. Ruhayel1, 2, A Giwercman3,
Y. Lundberg Giwercman1
1Deptartment of Clinical Sciences, Molecular Genetic
Reproductive Medicine, Lund University, Malmö;
2Department of Urology; 3Reproductive Medicine
Centre, Skåne University Hospital, Malmö, Sweden
Introduction Prostate cancer (PCa) is a one
of the most common malignancies in men.
Previous studies have indicated an association between male subfertility and a reduced
risk of prostate cancer, giving the hypothesis
that testicular dysfunction might alter the
androgenic stimulation of the prostate tissue.
The aim of this study was to investigate the
genetic background of this relationship.
Material & Methods Candidate genes were
selected based on previous GWAS studies
reporting associations to prostate cancer or
male subfertility. Thirty men categorized as
subfertile, 403 fertile men with PCa and 394
fertile men without PCa were identified using data from the population based Malmö
Cancer and Diet Study. Genotyping was performed using the Sequenom iPLEX Gold assay and MassARRAY MALDI-TOF platform (Sequenom Inc., San Diego, CA). Odds
ratios (OR) and 95% confidence intervals
(CI) for the associations were calculated using logistic regression models.
Results For polymorphisms in the genes
PARP2 and RPPH1, the results showed a
negative association to prostate cancer and
a positive association to male subfertility
(OR 2.83, 95%-CI: 1.04–7.67 for PARP2 and
OR 3.44, 95%-CI: 1.63–7.23 for RPPH1), as
well as an overall association to male subfertility (OR 3.07, 95%-CI: 1.12–8.43 for
PARP2 and OR 2.80, 95%-CI: 1.34–5.84 for
RPPH1).
Conclusion Polymorphisms in the PARP2
gene and its neighbour gene RPPH1 were
found to be associated with male subfertility
as well as decreased PCa risk. PARP2 is believed to be activated by DNA strand breaks
and is important in normal spermatogenesis,
whereas RPPH1 encodes RNA that makes up
the RNA unit in RNase P, an endoribonuclease involved in the maturation of tRNAs.
These genetic mechanisms might, at least
partly, explain the inverse association between male subfertility and PCa risk.
P91
Polymorphisms in the FollicleStimulating Hormone Receptor
Affect Receptor Activity In Vitro
I. Lindgren1, A. Giwercman2, Y. Lundberg Giwercman1
1Deparatment of Clinical Sciences, Molecular Genetic
Reproductive Medicine, Lund University; 2Reproductive Medicine Centre, Skåne University Hospital,
Malmö, Sweden
Introduction Follicle-stimulating hormone
(FSH) regulates gametogenesis through binding to its receptor (FSHR). Although the
Thr307Ala and Asn680Ser polymorphisms
in the FSHR gene affect reproductive function in both men and women in vivo, so far in
vitro studies have failed to show differences
in FSHR activity between the polymorphic
receptor variants. The aim of the present
study was, using a broader FSH concentration range than previously tested, to examine
whether the Thr307Ala and Asn680Ser polymorphisms affect the FSHR activity in vitro
in COS-1 cells.
Material & Methods Variants of the FSHR
were cloned and transfected into COS-1 cells.
Cells were stimulated with 5, 10, 20 and 50
mIU/mL rFSH (Gonal-F) and cAMP concentration in the culture medium was measured
and adjusted for total protein concentration.
Results There were no differences in cAMP
concentration between the Thr307/Asn680
receptor variant and the Ala307/Ser680 receptor variant, when cells were stimulated
with 5, 10 and 20 mIU/mL rFSH. However,
in response to 50 mIU/mL rFSH, the Thr307/
Asn680 receptor variant displayed a two
times higher cAMP response compared with
the Ala307/Ser680 receptor variant.
Conclusion In accordance with in vivo findings, we found that the Ala307/Ser680 receptor
variant exhibits notably lower activity in vitro
when cells were stimulated with doses of rFSH
outside the physiological range. This may, at
least partly, explain the need for higher FSH
doses needed for ovulation stimulation prior to
in vitro fertilisation, and also higher FSH levels
and marginally lower sperm counts reported in
subjects with this FSHR variant.
P92
Sperm Y:X Chromosome Ratio
and Exposure to Persistent Organic Pollutants in Young Men
From the Faroe Islands
L. Kvist1, Y. Lundberg Giwercman1, P. Weihe2, T. Kold
Jensen3, 4, P. Grandjean3, 5, A. Giwercman6
1Clinical Sciences, Lund University, Malmö, Sweden;
2Faroese Hospital System, Occupational Medicine &
Public Health, Thorshavn, Faroe Islands; 3Institute of
Public Health, Environmental Medicine, Odense;
4Growth and Reproduction, National Hospital,
Copenhagen; 5Environmental Health, Harvard School
of Public Health, Denmark; 6Reproductive Medicine
Centre, Skåne University Hospital, Malmö, Sweden
Introduction Decline in birth sex ratio has
been observed during recent decades in several countries and it has been suggested that
J Reproduktionsmed Endokrinol 2012; 9 (5)
391
ECA – Abstracts
P89
Y chromosome-linked CNVs in
the Spanish Population
ECA – Abstracts
7th ECA-Congress – Abstracts
exposure to endocrine disruptors (EDs) might
be the underlying cause. The present study
sought to investigate whether exposure to
dichlorodiphenyl dichloroethene (p,p´DDE),
dichlorodiphenyl trichloroethane (p,p´DDT)
or polychlorinated biphenyls (PCBs) had an
effect on the distribution of sex chromosomes in sperm cells.
Methods The sperm Y:X chromosome ratio
was established by 2 color fluorescent in situ
hybridization (FISH). p,p´DDT and a mixture of known PCBs were measured using a
gas chromatographic system in n = 241 Faroe
men, 24–27 years of age. In n = 27 cases not
enough sperm for the FISH analysis was
available. Linear regression as well pairwise
comparisons of exposure levels stratified
into 25th percentiles were performed. All
analyzes were adjusted for age, abstinence
time and smoking.
Results The efficiency of the FISH method
was 98.1% and the Y:X chromosome ratio of
the Faroe population was 0.501 (0.498–
0.504, 95%-CI). There was a positive linear
association between Y:X chromosome ratio
and log transformed p,p´DDT (p = 0.030),
but not for PCB. When exposure data was
stratified into quartiles, no differences in
Y:X chromosome ratio were found regarding p,p´DDT, while the 4th PCB exposure
quartile had a significantly lower X:Y ratio
(0.488; 0.478–0.498, 95%-CI) than both the
2nd (0.502; 0.493–0.510, 95%-CI; p = 0.047)
and the 3rd (0.504; 0.492–0.516 95%-CI;
p = 0.038).
Conclusion This study indicates that exposure to p,p´DDT leads to an increase in the
sperm Y:X chromosome ratio whereas exposure to PCBs lead to a decrease in sperm cells
from young Faroe men. Thus, changes in
sperm Y:X chromosome ratio may be linked
to ED exposure and subsequent alterations in
birth sex ratio.
P93
Decreased Transactivating Capability due to a Deletion in the
Transactivating Domain of the Androgen Receptor Gene is Associated with Testicular Cancer and
Male Infertility
H. Rastkhani1, A. Giwercman2, E. Rajpert-De Meyts3,
N. Jörgensen3, 4, Y. Lundberg Giwercman5
1Clinical Sciences, Lund University, Malmö; 2Reproductive Medical Centre, Skåne University Hospital,
Malmö, Sweden; 3Growth & Reproduction, Copenhagen University Hospital; 4Denmark; 5Clinical Sciences, Molecular Genetic Reproductive Medicine,
Lund University, Malmö, Sweden
Background A deletion of the amino acid
leucine at codon 57 (Del L57) in the androgen receptor (AR) has been reported in a man
with testicular cancer. Our objective was to
investigate the impact of this deletion on AR
activity in vitro and its prevalence in patients
with testicular cancer or male infertility,
both conditions are supposed to be related to
subnormal androgen activity.
392
J Reproduktionsmed Endokrinol 2012; 9 (5)
Methods Leukocyte DNA was extracted and
the AR gene directly sequenced in n = 476
patients with testicular cancer and n = 406
patients with infertility problems and n = 322
samples from the general population. Hormone concentrations (Testosterone, FSH,
LH, InhibinB, SHBG, estradiol) and sperm
parameters were measured. The mutation was
cloned into pCMV4 and transiently co-transfected into COS1-cells together with a luciferase reporter gene driven by the PSApromoter, which is an AR target gene, in the
absence or presence of 10 nM of the synthetic
testosterone R1881. A mock transfected AR
served as control.
Results The L57 deletion was detected in 2
infertile men (0.5%), 2 men with testicular
cancer (0.4%) and in 1 control (0.3%). Hormonal levels and sperm parameters in these
individuals were within the ranges found in
the general population. The transactivating
capability of the Del-L57 was 67% of the
wild-type AR.
Discussion Despite lack of any obvious
signs of androgen insensitivity among the
subjects included in current study, this deletion hampers AR function in vitro. Our findings support the hypothesis that decreased
androgenic activity in males during critical
time-windows in gestation may be associated with risk of testicular cancer and reproductive function in adulthood.
P94
Array-CGH Studies In Male Infertility: Deletion Burden on the XChromosome and Sex Chromosomes-linked CNVs
C. Chianese1, D. Lo Giacco2, C. Giachini1, F. Daguin1,
E. Rossi3, E. Ars2, E. Ruiz-Castanè4, G. Forti5, C. Krausz1
1Department of Clinical Physiopathology, University
of Florence, Italy; 2Fundaciò Puigvert, Universitat
Autònoma de Barcelona, Barcelona, Spain; 3University of Pavia, Italy; 4Fundaciò Puigvert, Barcelona,
Spain; 5Endocrinology Unit, Deptartment Clinical
Physiopathology, Florence, Italy
Introduction The etiology of male infertility can be related to genetic factors in about
15% of men with spermatogenic disturbances, but still a consistent portion of socalled “idiopathic cases”, plausibly concealing a genetic origin, remains unexplained.
Copy Number Variations (CNVs) have progressively drawn the attention in relation to
various complex human diseases, thus raising the question whether such structural
variants play a role in male infertility as well.
In order to better understand the contribution
of CNVs to male infertility, we used a high
resolution array-CGH approach to fulfil two
purposes: (1) to identify novel X-linked variants potentially linked to male infertility; (2)
to determine whether men carrying Y chromosome microdeletions display structural
defects in the PARs, as well.
Materials & Methods For the first aim, 96
infertile men with different grade of spermatogenic impairment (49 azoospermic, 25
cryptozoospermic and 22 oligozoospermic
men) and 103 normozoospermic men were
analyzed with a high resolution array-CGH
platform customized for the X chromosome.
Selected losses were validated by PCR (±) or
TaqMan Assays and then screened in a case/
control setting (359 infertile vs 370 normozoospermic men). For the second aim, we
examined 22 infertile men with different
types of Y-chromosome microdeletions and
12 men with an intact Y chromosome referred to as controls. CNVs identification
was performed by the abovementioned array-CGH platform and then carried on by
quantitative PCR of selected PAR genes
(SHOX, PLCXD1).
Results Regarding the first aim, we found
73 CNVs, of which 55 are novel, providing
the largest collection of X-linked CNVs in
association with semen phenotype. Twelve
deletions were patient-specific, thus suggesting their potential relevance from a clinical
standpoint. The salient finding of our study
is a significantly higher global “deletion burden” in patients compared to controls due to
an excessive rate of deletions/person (0.57
vs 0.21, respectively; p = 8.785 ×10–6) and to
a higher mean sequence loss/person (11.79 Kb
and 8.13 Kb, respectively; p = 3.435 ×10–4).
As for the second aim, we assessed the presence of PAR defects only in those Y
microdeletion carriers presenting abnormal
karyotype (i. e. mosaicism), whereas no PAR
aberrations were found in carriers with a normal karyotype and in the controls.
Conclusions We propose the observed “deletion burden” as a new genetic factor that
may mirror a vaster genomic instability, with
potential implications to not only reproductive but also general health. Our preliminary
data on PAR defects are discordant from a
previous finding of PAR CNVs in men with
Y microdeletions, indicating that Yq deletion carriers are unlikely to be at risk for developing PAR-related pathologies.
P95
Is Abnormal Karyotype the Essential Reason to Cancel Azoospermic
Men From Testicular Biopsy?
J. K. Wolski, J. Brycz-Witkowska, H. Stanczak, E. Budna,
B. Biarda, P. Kluge, K. Koziol, P. Lewandowski
Fertility Clinic “Novum”, Andrology/Urology, Warsaw,
Poland
Background Infertility is described as the
inability of a couple to conceive after 1 year
of unprotected intercourse. The present is1
in6 couples. Male factor is implicated near
50% and genetic factors – chromosomal abnormalities – are recognized in 5.8% (Guidelines EAU, 2012).
Material & Methods During 2008–2011 a
group of 338 azoospermic men (mean age
32,5 yrs) had regular andrological evaluation
by WHO/EAU guidelines. The needle percutaneous testicular biopsies from both gonads
(adapted method by [Hendricks, Fertil Steril
1969]) were performed under short iv anesthesia. All specimens were analyzed by pathologist using simplified classification for
7th ECA-Congress – Abstracts
Conclusions
1. Chromosomal abnormalities were recognized in 11% in our group of azoospermic
men.
2. Proper male karyotype is connected with
present sperm in testicular biopsies near
60%.
3. Abnormal male karyotype gives the probability to find sperm in gonadal specimen
near 47% then final exclusion from testicular
biopsy procedure should take into consideration completely andrological evaluation of
azoospermic men.
P96
Lack of Evidence for a direct
Association of Y chromosome
Microdeletions in Children with
Testicular Maldescent
C. Mamoulakis1, F. Dimitriadis2, A. Chatzikyriakidou3,
E. Vlachopoulou4, F. Sofras1, I. Georgiou3, N. Sofikitis4
1Urology, Medical School, University of Crete, Heraklion,
2
Urology, Papageorgiou Gen. Hospital, Thessaloniki;
3Department of Obstetrics and Gynaecology, Ioannina;
4Urology University of Ioannina, Greece
Objective Testicular
maldescent (TMD)
represents the most common congenital abnormality in humans. Furthermore, normal
control of spermatogenesis is regulated by
genes located at the euchromatic region of
the Y chromosome long arm (Yq11). It is
currently clear that Yq11 microdeletions
(Yq11-md) represent the most frequent genetic aetiology of severe testiculopathy
among infertile patients. The association of
Yq11-md with TMD and related infertility
has been specifically evaluated in a limited
number of studies with inconclusive results.
The aim of the study was to investigate the
hypothesis that Yq11-md are directly implicated in testicular maldescent.
Materials & Methods Genomic DNA was
extracted from the peripheral blood of 292
subjects. This population consisted of (1)
180 children with all phenotypes of isolated
(non-syndromic) testicular maldescent from
174 index families, (2) affected adult relatives available (n = 12), and (3) 100 unrelated children with normal external genitalia
(controls). The sequence tagged site primer
set and the conditions of conventional polymerase chain reaction amplification were
based on the current laboratory guidelines
for molecular diagnosis of Y chromosome
microdeletions recommended by the European Academy of Andrology and the European Molecular Genetics Quality Network.
2 multiplex reactions were designed to screen
AZFa, AZFb, and AZFc regions. Each multiplex reaction included adequate internal
and external amplification controls. Amplification products were submitted to electrophoresis on 2% agarose gel impregnated with
ethidium bromide dye solution for 80Vhrs
and visualized under ultraviolet light.
Results No microdeletions were detected in
any subject.
Conclusions These results indicate that Y
chromosome microdeletions are not directly
implicated in the pathogenesis of testicular
maldescent. Other factors should be investigated to potentially explain the genetic predisposition that seems to exist in at least a
subgroup of these patients.
P97
Influence of Androgens on the
Differentiation of Human regulatory T cells
M. Walecki1, N. Baal2, A. Pilatz3, A. Meinhardt1, M. Fijak1
1Anatomy and Cell Biology, Justus-Liebig-University;
2
Institute for Clinical Immunology and Transfusion
Medicine, Giessen; 3Department of Urology and
Adrology, Justus-Liebig-University, Giessen, Germany
Introduction Regulatory T cells (Tregs) are
able to inhibit proliferation and cytokine
production in the effector T cells and play a
major role in immune responses and prevention of development of autoimmune diseases. The experimental autoimmune orchitis (EAO) is a model of chronic testicular inflammation. Our previous results have shown
supplementation of EAO rats as well as rat
splenic T cells in vitro with testosterone
causes differentiation of Tregs characterized
by increased expression of the transcription
factor Foxp3. Foxp3 expression is under epigenetic control and it is known that common
transcription factors are involved in Foxp3
regulation as well as in the methylation status by binding theFoxp3locus. In the present
study, we aim to investigate the effect of androgens on the expression, regulation and
methylation status of human Foxp3 and putative interaction with androgen receptor
(AR).
Material & Methods Human T cells were
isolated from fresh blood of patients with decreased testosterone concentration by magnetic beads and cultivated in vitro in the
presence of testosterone or DHT. The Foxp3
staining was analyzed by flow cytometry.
The detection of the AR expression in Treg
cells was performed by immunohistochemistry and RT-PCR. The non-classical pathway
of the AR signal transduction was analyzed
by Western Blot, using antibodies against
MAP kinases. Genomic DNA was used as a
template to amplify Foxp3 promoter fragments by PCR. The luciferase reporter gene
assay was performed to analyze a putative
binding site of the AR to the Foxp3locus.
Results After the treatment of female T
cells with DHT we detected significant increase in the Foxp3 expression T cells from
male patients with a metabolic syndrome
showing low testosterone levels, displayed
an elevated Foxp3 expression after DHT
treatment. No activation of the Foxp3 expression in T cells from healthy male donors
could be observed. Human Treg express the
AR and 5-α reductase, which is important to
convert testosterone into DHT. The AR acts
probably through the classical and not the
non-classical pathway to activate the Foxp3
gene. After induction of Foxp3 by testosterone or DHT no changes in the phosphorylation of the classical MAP kinases could be
observed. Furthermore, a potential direct
binding of the AR to the Foxp3 locus with
the luciferase reporter gene assay in human
HEK 293 cells will be investigated. Our preliminary results show that the AR is able to
bind and activate the Foxp3 promoter.
Conclusions Our preliminary results show
that androgens are able to activate the Foxp3
expression not only in the rodent but also in
human Treg cells which could to exert an
immunomodulatory effect on the immune
homeostasis of the testis. The activation of
the Foxp3 protein can probably be affected
by binding of the AR to the Foxp3 gene. This
binding could possibly induce a change in
the methylation status of the Foxp3 gene. To
determine precisely the binding region and
changes in the methylation status of the
Foxp3 gene, further experiments need to be
performed.
P98
Recurrent X Chromosome-linked
Deletions: Discovery of New Genetic Factors in Male Infertility
D. G. Lo Giacco1, C. Chianese2, E. Ars1, E. Ruiz Castañé3,
G. Forti2, C. Krausz2
1Molecular Biology Laboratory, Fundació Puigvert,
Barcelona, Spain; 2Andrology Unit, University of Florence, Italy; 3Andrology Service, Fundació Puigvert,
Barcelona, Spain
Introduction Both sex chromosomes are
enriched with genes prevalently or exclusively expressed in the testis. Nevertheless,
only Y-linked CNVs have been demonstrated to contribute to spermatogenic impairment in humans, whereas whether the X
chromosome contains AZF-like regions remains unknown. In fact, up to now only a
few “rare” X-linked deletions/duplications
have been reported in the literature and given
their rarity only exceptionally large study
populations could confirm their contribution
to oligo/azoospermia. Through our first Xchromosome specific array-CGH screening
of 199 subjects, we identified 3 recurrent deletions (frequency > 1%). Here we perform a
case-control association study in order to explore the role of such deletions in oligo/
azoospermia.
Material & Methods The 3 deletions of interest, named CNVX1, CNVX2, and CNVX3,
all mapping to the Xq, were studied by a
multi-step PCR plus/minus method includ-
J Reproduktionsmed Endokrinol 2012; 9 (5)
393
ECA – Abstracts
IVF-ICSI procedure: Present Sperm (PS),
Maturation Arrest (MA), Sertoli Cell Only
syndrome (SCOs) and Tubular/Peritubular
Fibrosis (TPF). Genetic test – karyogram of
human male using Giemsa staining – had
138 (41%) patients.
Results Proper male karyotype – 46,XY –
had 123 men (89.1%). Pathologist evaluations of testicular specimens were as follow:
PS-73 (59.3%), MA-17 (13,8%), SCOs-30
(24.4%) and TPF-3 (2.4%). Non-homogenous abnormal karyotypes were recognized
in 15 (10,9%) patients and pathologist results were: PS-7 (46.7%), MA-3 (20%),
SCOs-5 (33.3%).
ECA – Abstracts
7th ECA-Congress – Abstracts
ing the main screening and confirmatory
steps. Idiopathic infertile men (excluded all
known causes) were strictly selected and
compared to normozoospermic controls. The
study populations included Italian (60%)
and Spanish (40%) subjects and for each
CNV we analyzed: (1) 494 cases and 491
controls (CNVX1); (2) 591 cases and 590
controls (CNVX2); (3) 359 cases and 390
controls (CNVX3).
Results All 3 deletions were found with a
frequency significantly higher in patients
than controls. CNVX1 resulted the most recurrent in both the patient (6.7%) and the
control group (3.8%) (p < 0.05; OR: 1,726.
95%- CI: 0.996–2.993) followed by CNVX3
detected in 4.2% of patients and 1.5% of
controls (p < 0.05; OR: 2.716; 95%-CI:
1.065–6.924) and CNVX2 which was exclusively found in patients (1.2%). The analysis
of flanking regions does not reveal Segmental Duplications, therefore NHEJ is the most
likely mechanism for the formation of these
deletions. The breakpoint’s definition is ongoing and will help define the recombination
substrate. The deletions do not remove directly coding genes, with the exception of
CNVX2, which could affect the expression
of one gene belonging to the cancer testis
antigen family. CNVX1 and CNVX3 may
also affect the activity of a number of genes
expressed in the testis localized at < 0.5 Mb
from the deletion.
Conclusions In this study, based on two independent study populations of different
geographic origin, we provide strong clues
supporting the involvement of two deletions
CNVX2, and CNVX3 in the etiopathogenesis of spermatogenic impairment. Our most
relevant data, based on 1182 subjects, is the
discovery of an AZF-like region on the Xchromosome which is specific to men with
impaired sperm production. The associated
phenotype ranges from azoospermia to severe oligozoosperrmia and similarly to Ylinked deletions it may become a new diagnostic test.
P99
The Molecular Role of Tcd1b in
Transmission Ratio Distortion
Y. Charron, H. Bauer, B. G. Herrmann
Max Planck Institute for Molecular Genetics, Developmental Genetics, Berlin, Germany
Males heterozygous for the t-haplotype (t/+),
a variant form of the mouse chromosome 17,
transmit the t-haplotype at a high ratio to their
offspring (99%). This phenomenon, termed
Transmission Ratio Distortion (TRD), is
caused by the cooperative effect of several tcomplex distorters (Tcds 1–4) and the single
t-complex responder (Tcr) on sperm motility.
Previously, we have identified Tcr, as a catalytically compromised protein kinase (Smok)
and the distorters Tcd1a, Tcd2a and Tcd2b
which encode Rho protein regulators.
Here we show that Tcd1b, encoding a Rho
guanine nucleotide exchange factor (GEF),
is differentially expressed in t-haplotype tes-
394
J Reproduktionsmed Endokrinol 2012; 9 (5)
tis. Overexpression of its wild-type and long
form reduces the transmission rate of the th49
haplotype. A loss-of-function allele also affects the transmission rate of the partial tw18
haplotype. The combined data clearly demonstrate that Tcd1b acts as a distorter.
P100
Treatment of Patients with a Late
Diagnosis of Klinefelter’s Syndrome
with Testosterone undecanoate
for a Duration of up to 5 years
A. Haider1, F. Saad2, 3
Private Urology Practice, Bremerhaven; 2Global
Medical Affairs Andrology, Bayer Pharma AG, Berlin,
Germany; 3Research Department, Gulf Medical University School of Medicine, Ajman, UAE
1
Introduction Males suffering from Klinefelter’s Syndrome (KS) experience an increased hospitalization rate from a variety of
disorders, some caused by hypogonadism,
and some linked to the syndrome per se, others not readily explained, maybe socioeconomic. The degree of hypogonadism is variable with the vast majority below the normal
range. Mortality in KS is significantly increased, with excess deaths due to diabetes,
cardiovascular, respiratory, and gastrointestinal diseases. KS is markedly underdiagnosed with less than 10% of cases identified
by puberty and less than 20% ever diagnosed
during life.
In the present study we describe a cohort of
men suffering from KS, diagnosed at advanced age. The majority of the patients had
been referred by an orthopedic surgeon after
a diagnosis of osteoporosis to be checked for
hypogonadism.
Methods Open-label, single-centre, cumulative, prospective registry study of 22 middleaged men with testosterone levels between
2.1 and 3.5 ng/mL (mean: 3.08 ± 0.46). 21
men were studied for at least 2 years, 18 for 3
years, 11 for 4 and 8 for at least 5 years. They
received parenteral testosterone undecanoate
1000 mg/12 weeks after an initial interval of
6 weeks.
Results After 5 years the following changes
were observed: Testosterone (ng/mL) increased from 3.08 ± 0.46 to 4.86 ± 0.47 ng/mL
(p < 0.0001). Body weight (kg) decreased
from 105.05 ± 11.18 (minimum: 70, maximum: 139) to 90.88 ± 9.76 (p < 0.0001 vs baseline). Waist circumference (cm) declined from
104.32 ± 6.39 to 96.50 ± 6.63 (p < 0.0001 vs
baseline). The mean T-score increased from
–2.91 ± 0.31 (min –3.90, max –2.60) to –1.50 ±
0.28 (p < 0.0001 vs baseline). Glucose levels
remained unchanged with mean levels below
100 mg/dL at all time-points. Total cholesterol decreased from 240.95 ± 18.89 to
177.75 ± 16.69 (p < 0.0001), LDL from
124.09 ± 46.4 to 64.13 ± 18.13 (p < 0.0001)
and triglycerides from 235.09 ± 22.07 to
180.75 ± 7.59 (p < 0.0001). HDL did not
change significantly.
Conclusions Raising serum testosterone to
normal in patients with a late diagnosis of
Klinefelter’s syndrome improved body com-
position including bone mineral density.
Other features of the metabolic syndrome
were also improved.
P101
The Muenster EXAKT Project:
Cardiovascular Risk Factors in
Klinefelter Patients and Healthy
Controls
M. Zitzmann1, S. Werler1, R. Bongers1, S. Kliesch1,
J. Gromoll1, F. Tuettelmann2
1CeRA; 2Human Genetics, University Clinics Muenster,
Germany
Background & Aim Klinefelter syndrome
(47,XXY; KS) is a very common chromosomal disorder, affecting 1:600 men. Klinefelter men have been described to exhibit
clinically relevant metabolic patterns related
to a pro-inflammatory status, resulting in a
high prevalence of insulin resistance and cardiovascular impairment. Testosterone deficiency in form of primary hypogonadism is a
common feature in these men.
EXAKT (Epigenetics, X-Chromosomal features and clinical applications in Klinefelter’s
syndrome Trial) is a Muenster-based prospective project involving Klinefelter patients (n = 130), and their parents assessing a
wide area of cardiovascular, inflammatory
and metabolic factors as well as sex steroids
and questionnaires in comparison to agematched healthy male and female controls
(2 × n = 50). A broad range of genetic and
epigenetic investigations completes the approach.
Here, we present first and novel clinical data
comparing Klinefelter patients to healthy
male controls with regard to cardiovascular
and metabolic parameters.
Results KS patients had a higher waist circumference and Body Mass Index in comparison to controls. Further on, decreased insulin sensitivity, higher levels of triglycerides and lipoprotein type a as well as lower
concentrations of HDL-cholesterol were
found in patients. Levels of high-resolution
C-reactive protein were elevated in Klinefelter patients. Consequently, the prevalence
of the Metabolic Syndrome according the
harmonized criteria was markedly higher in
Klinefelter men than in controls (52/130 vs
5/50). Corroboratingly, carotid artery intima-media thickness was increased and flow
mediated dilatation of the brachial artery was
decreased in patients vs controls. These differences were statistically significant. Metabolic disadvantages of patients were further
enhanced by low testosterone concentrations
and already present in the sub-cohort
younger than 40 years.
Conclusion The EXAKT study revealed an
unfavorable pattern of cardiovascular risk
factors in KS in comparison to healthy male
controls. This picture is already present in
younger patients and enforced by testosterone deficiency.
Supported by the IZKF Muenster: CRA03/09;
and DFG (Grant No. WI2723/4-1).
P102
Muenster-EXAKT: X-Chromosome
Inactivation in 2 Klinefelter-twin
Pairs
R. Bongers1, S. Werler1, J. Gromoll1, S. Kliesch1,
F. Tüttelmann2, M. Zitzmann1
1Centre of Reproductive Medicine and Andrology;
2Institute of Human Genetics, University Hospital of
Muenster, Germany
Introduction Klinefelter’s syndrome (KS)
with an incidence of 1 in 500 males is one of
the most frequent numeric chromosome aberrations, leading to infertility in 97% and
clinically relevant metabolic patterns related
to a pro-inflammatory status, resulting in a
high prevalence of insulin resistance and cardiovascular impairment. Testosterone deficiency (primary hypogonadism) is a common feature in KS. Identical twins with KS
have first been described in 1958. The twinning rate among KS patients was found to be
between 5.4 and 8.8 %. The aim of this study
was to elucidate whether epigenetic patterns
are similar between twins or contribute to
phenotypical variations.
Materials & Methods 2 twin pairs with
karyotype 47,XXY and 48,XXXY, respectively were examined clinically by ultrasound of thyroid and testes, measuring bone
density and skeleton age, and analysing semen and blood samples includinghormone
parameters. The methylation profile of the
genes XIST, FMR1 and KDM6A was evaluated by pyrosequencing and compared to results in 50 healthy male and 50 female controls.
Results Both twin pairs had sparse head and
body hair growth, testicular volume was 1 ml
each. The 48,XXY twins were mentally retarded. Besides different physical impairments and depression, testosterone deficiency was found in both twin pairs. After
Testosterone therapy both twin pairs were
mentally more ballanced and showed an increase in body hair growth and muscle mass.
The 48,XXXY twins differed regarding phenotype and physical impairments and a differing methylation profile was found.
XIST methylation analysis in the 47,XXY
twins revealed 68% methylation which
equals the methylation profile of healthy
women, but differed significantly from
healthy men. For FMR1, a gene that is silenced due to the process of X-inactivation,
49 % methylation was found, which equals
women-like methylation status. In the
48,XXXY twins XIST and FMR1 methylation differed from the 47,XXY twins and
healthy female controls: XIST-methylation
(50%) was lower in the 48,XXXY twins
whereas the methylation of FMR1 (66,75 %)
was higher compared to the 47,XXY twins
and female controls. This finding is indicative to the presence of 2 inactivated X-chromosomes in the 48,XXXY twins. KDM6A, a
gene escaping X-inactivation, showed a very
low methylation status in all groups, indicating that this gene escapes X-inactivation in
the 47,XXY and 48,XXXY twins.
Conclusion This is the first description of
epigenetic patterns of the X-chromosome in
two KS twin pairs with XXY or XXXY
karyotype. X-inactivation did not differ
among these karyotypes indicating that Xchromosome inactivation in these KS patients worked correctly. However, genes escaping X-inactivation could contribute to the
observed phenotype.
Supported by IZKF Muenster, CRA03/09.
P103
The Muenster EXAKT Study:
Microarray Gene Expression
analysis in Blood Samples of
Klinefelter Patients
S. Werler1, R. Bongers1, P. Hüppe1, 2, J. Seggewiss3,
J. Wistuba1, F. Tüttelmann4, M. Zitzmann1, J. Gromoll1
1CeRA, University Hospital Muenster; 2Clinic for Urology, University Hospital Essen; 3Integrated Functional
Genomics, Muenster; 4Human Genetics, University
Hospital Muenster, Germany
Introduction With an incidence of 0.2%,
Klinefelter’s syndrome (KS; karyotype
47,XXY) is the most common sex chromosomal disorder in men. Patients are mainly
characterized by hypergonadotropic hypogonadism, and amongst other features, germ
cell loss that results in infertility, is typical.
However, KS patients exhibit a heterogeneous phenotype and many metabolic disturbances can be associated with this condition.
The EXAKT study (Epigenetics, X-Chromosomal features and clinical Applications
in Klinefelter’s syndrome Trial) is a prospective project involving Klinefelter patients
and their parents assessing a wide area of
cardiovascular, inflammatory and metabolic
factors as well as a broad range of genetic
and epigenetic investigations. To elucidate a
putative gene-dosage effect of the supernumerary X-chromosome as a cause for the
Klinefelter phenotype, the global gene expression levels were analyzed in blood
samples from KS patients and compared to
healthy men.
Material & Methods RNA was isolated from
blood samples of 35 KS patients and 15
healthy male controls. Microarray experiments
were performed using the Affymetrix Gene
1.0 ST Chip. Data analysis was carried out
using Partek Genomic Suite software and IPA
(Ingenuity). Selected microarray results were
validated by quantitative Real-Time PCR.
Results 36 genes were found to be differentially expressed between Klinefelter patients
and healthy men. Among these genes, 9 are
located on autosomes, whereas all other genes
are located on the X and Y-chromosome,
most of them in the pseudoautosomal region 1
(PAR1). The X-chromosomal genes that were
upregulated in KS patients were predominantly genes, which escape the process of Xinactivation. Pathway analysis showed that
most of the autosomal genes clustered in a
network influenced by β-estradiol.
Conclusion The global gene expression
analysis in blood samples of Klinefelter pa-
tients revealed that “escapee” genes are expressed higher in KS patients when compared to male controls. This indicates that
these genes do escape X-inactivation as they
do in healthy women, rendering them as candidate genes responsible for the altered phenotype observed in KS patients. The association of some differentially expressed autosomal genes with β-estradiol suggests a novel
role of this hormone in the pathophysiology
of Klinefelter Syndrome.
This Study was supported by IZKF, Muenster,
grant CRA03/09 and DFG, grant no: WI 2723/4-1.
 Postersession 6: New
Horizons in Andrology &
Testicular Cancer
P104
Fibronectin on the Surface of Human Spermatozoa: A New Marker
of Sperm Quality
F. Torabi1, H. Heidari-Vala1, M. M. Akhondi1, N. Lakpour2,
A. H. Zarnani1, J. Mahmoudian3, A. R. Mahmoudi3,
M. R. Sadeghi3
1Embryology and Andrology, Reproductive Biotechnology Research Centre; 2Nanobiotechnology Research
Centre; 3Monoclonal Antibody Research Centre,
Avicenna Research Institute, ACECR, Immunochemistry, Tehran, Iran
Introduction To identify a new marker on
the surface of human spermatozoa used in
sperm selection for assisted reproductive
techniques (ART) and application of less invasive methods such asimmunomagnetic
cell sorting method (MACS) for sperm selection. In this regard, presence of fibronectin (FN) on the surface of sperm was evaluated in correlation with sperm quality.
Methods Normozospermic semen was collected from 15 couples with female factor
infertility. Normal sperm separated through
density gradient centrifugation (DGC). The
incubated sperm with rabbit anti FN antibody was loaded on MACS column. The
three populations of sperm (crude, bounded
and unbounded) were evaluated for fibronectin content, vitality, chromatin maturity
(CMA3) and chromatin integrity (SCSA) by
flow cytometry.
Results The MACS column increased FNpositive sperm significantly in bounded
compared to unbound and crude fractions
(77.34% ± 10.35% vs 2.36% ± 2.16% and
12.45% ± 10.38%, respectively; p = stained
immature chromatin (25.4% ± 8.23% vs
41.13% ± 10.9%).
Conclusion This study shows that fibronectin on human sperm surface correlated with
chromatin integrity and maturity; therefore,
it can be considered as a positive marker of
human sperm quality. Further comprehensive studies on FN in relation to sperm quality will reinforce its application in male infertility and ART in future.
J Reproduktionsmed Endokrinol 2012; 9 (5)
395
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
P105
NAMPT is Expressed and Released
by Human Spermatozoa Depending on Maturation Stage
according to its regulatory effects on NAD+
levels has a function in spermatozoa energy
metabolism and therefore an impact on semen quality.
S. Thomas1, 2, A. Garten3, M. Schaab1, S. Grunewald2,
W. Kiess3, J. Kratzsch 1, U. Paasch2
1Institute of Laboratory Medicine, Clinical Chemistry
and Molecular Diagnostics; 2Department of Dermatology, Venerology and Allergology, European Academy
of Andrology (EAA) Training Centre; 3Department of
Women and Child Health, Hospital for Children and
Adolescents, Centre for Pediatric Research Leipzig
(CPL), University Hospital; University of Leipzig,
Germany
P106
Testicular Peritubular Cells Influence Spermatogonial Stem Cells
via the Extracellular Matrix Proteoglycan Decorin and may Contribute to the Spermatogonial Stem
Cell Niche in Man
Introduction The underlying mechanisms
of infertility in obese men are not completely
understood. Nicotinamide phosphoribosyltransferase (NAMPT), a key enzyme of
NAD+ metabolism is implicated in the regulation of apoptosis and was found in spermatocytes and spermatides of chicken testis.
Accordingly, we aimed to analyze the presence of NAMPT in human seminal plasma
(SP) and in spermatozoa, the function of
NAMPT in male reproduction and whether
or not NAMPT levels depend on BMI.
Material & Methods Semen was analyzed
according to the WHO guidelines 2010. In
SP and serum of 96 healthy donors (age
35.1 ± 11.6 years, BMI 27.0 ± 5.55 kg/m2).
NAMPT concentrations were determined by
ELISA. NAMPT activity was determined in
SP by measuring the conversion of 14C-nicotinamide to 14C-nicotinamide mononucleotide (n = 4). Density gradient centrifugation
was performed with human semen to obtain
spermatozoa with different maturation stages.
Subsequently, spermatozoa were incubated
for 3 to 24 h to measure NAMPT in the respective supernatants (n = 10). NAMPT distribution in spermatozoa was analyzed by indirect immunofluorescence and western blot
to detect NAMPT in lysates of mature and
immature spermatozoa (n = 14).
Results NAMPT concentrations in SP were
approximately 100-fold higher than in serum
(194 ± 165 ng/ml vs 6.12 ± 14.7 ng/ml).
However, NAMPT concentrations did not
correlate with semen quality. No significant
differences of NAMPT concentrations in SP
between normal-weight and obese men were
found. NAMPT was detected in supernatant
of both mature and immature spermatozoa:
After 12 h and 24 h NAMPT levels in supernatant of immature sperm were significantly
higher than in the supernatant of mature
spermatozoa (2.67 ± 3.65 ng/ml vs 0.29 ±
0.26 ng/ml and 3.31 ± 4.17 ng/ml vs 0.50 ±
0.42 ng/ml) whereas viability was significantly
lower (68.2 ± 15.7 ng/ml vs 80.0 ± 11.2 ng/ml
and 61.8 ± 17.6 vs 76.7 ± 10.7 ng/ml). In
immature spermatozoa, NAMPT protein was
localized in the tail and connecting piece.
Immature spermatozoa had significantly more
relative NAMPT protein amount than mature
spermatozoa (1 ± 0 vs 7.07 ± 14.2 a. u.).
Conclusion The obtained results indicate
NAMPT is released by spermatozoa which
appeared to be independent of viability. Further experiments could clarify if NAMPT
396
J Reproduktionsmed Endokrinol 2012; 9 (5)
S. Windschüttl1, F. Flenkenthaler2, T. Fröhlich2, S. Schlatt3,
H. Schorle4, U. Welsch1, G.J. Arnold2, A. Mayerhofer1
1Institut für Zellbiologie; 2Gene Centre, Laboratory for
Functional Genome Analysis, Ludwig-MaximiliansUniversity, Munich; 3Centrum für Reproduktionsmedizin und Andrologie (CeRA), University of Muenster;
4Institut für Pathologie, Universitätsklinikum Bonn,
Germany
Question Spermatogenesis in man is fueled
by lifelong proliferation and differentiation
of spermatogonial stem cells (SSCs). These
cells reside in a niche formed by Sertoli cells,
on one side, and the basal lamina (BL),
which separates them from peritubular cells,
on the other side. Recent results, namely the
production of GDNF by cultured human testicular peritubular cells (HTPCs), strongly
suggested that these somatic cells contribute
to the regulation of SSCs and may act in concert with Sertoli cells [Spinnler et al., Hum
Rep 2010]. Testicular peritubular cells of the
human testis are not well explored, yet the
development of a culture model has allowed
new insights. Thus they produce, for example, decorin (DCN). This proteoglycan
has structural roles in the extracellular matrix and, importantly, can interact with
growth factors (GFs) and furthermore can
act as a ligand for GF receptors, including
EGFR [Adam et al., Hum Rep 2011]. This
aspect may be of importance for the regulation of SSC. In the present study we sought
to explore whether DCN is indeed a major
secretory product of HTPCs, examined its
expression in the basal lamina of seminiferous tubules and tested whether it can affect a
male germline model, the human seminoma
cell line TCam2.
Methods Proteomic analysis (LC-MS/MS)
was performed using conditioned culture
media of HTPCs of 3 patients. A testicular
biopsy was used for visualizing DCN at the
EM level with cupromeronic blue (CMB).
Expression of GF receptors by TCam2 were
analyzed by PCR/sequencing and especially
EGFR by Western Blot. The influence of
DCN on viability (ATP-level), apoptosis
(Caspase3/7-level) and proliferation (DAPI
staining) was examined.
Results Proteomic results showed that DCN
is among the most abundantly secreted factors of HTPCs (top 25). EM revealed that
DCN is present in the BL of human seminiferous tubules. TCam2 cells expressed all receptors of the EGF family and other GF receptors that are known targets of DCN. DCN,
while not altering ATP level, significantly
reduced the activity of caspases 3/7 and increased the number of mitotic TCam-2 cells
in a concentration and time dependent manner. We are currently studying whether this
is due to a direct activation of EGFR by DCN
or whether other GF receptors are involved.
Conclusion Our preliminary results show
that the abundant peritubular cell-derived
factor DCN promotes survival and proliferation of TCam2 cells and thus may contribute
to the SSC niche in man.
Supported by DFG MA1080/20-1; 21-1.
P107
Assessment of Sperm Concentration and Viability by Automated
Image Cytometry
D. L. Egeberg1, S. Kjærulff2, C. Hansen3, J. Petersen4,
M. Glensbjerg2, N.E. Skakkebæk1, N. Joergensen1,
K. Almstrup1
1University Department of Growth and Reproduction,
Rigshospitalet, Copenhagen; 2ChemoMetec A/S,
Allerød; 3Pig Research Centre, Danish Agriculture &
Food Council, Copenhagen; 4Institute of Public Health,
Biostatistics, University of Copenhagen, Denmark
Introduction An increasing number of
couples have trouble conceiving a child. For
a large proportion of these couples, poor semen quality is the major reason. Semen quality is typically evaluated based on several
variables, where sperm concentration are
one of the most predictive measurement of
fertility chances. Sperm concentration measurements are, according to WHO’s guidelines, performed by manual counting and are
hence labor intensive.
Methods Samples from men from infertile
couples attending the andrology outpatient
clinic at Department of Growth and Reproduction, Rigshospitalet, Copenhagen and
young volunteers from the general Danish
population were included in the study.
Sperm concentration and vitality/viability
was determined manually according to
WHO’s 2010 guidelines and by the automated image cytometers NC-3000 and SP100 from ChemoMetec A/S.
Results Initially, we investigated the impact of several factors (pipetting, mixing,
round cell content, sperm concentration),
which influence the read-out as well as interoperator and -cytometer variation on the two
different image cytometers. Secondly, we
measured a large range of semen samples
both by manual WHO assessment and by
image cytometry and showed a tight correlation along the identity line; manual assessment = automated assessment. Finally, we
showed by repeated measurements that image cytometry produces more robust and accurate measurements than manual counting
of human sperm concentration. In addition,
assessment of viability on a large range of
semen samples showed that the viability determined by image cytometers correlated
with traditional vitality assessment by eosinnigrosin staining.
Conclusion We conclude that image cytometry provides an appealing substitute of
7th ECA-Congress – Abstracts
P108
Seminal, Ultrasound and Psychobiological Correlates of Metabolic
Syndrome in Male Subjects of
Infertile Couples
M. Maggi, F. Lotti, G. Corona, S. Degli Innocenti,
E. Filimberti, V. Scognamiglio, L. Vignozzi, G. Forti
Sexual Medicine and Andrology Unit, Department of
Clinical Physiopathology, University of Florence, Italy
Introduction Metabolic syndrome (MetS)
is a diagnostic category increasing the risk of
cardiovascular and metabolic diseases, erectile dysfunction and male hypogonadism.
However, so far, no study is available concerning its impact on male infertility. We
evaluated possible associations between
MetS, semen parameters, scrotal ultrasound,
and psychobiological and sexual characteristics in a cohort of men seeking medical care
for couple infertility.
Methods Out of 367 consecutive subjects,
we selected a subset of 351 men without genetic abnormalities (karyotype abnormalities, Y microdeletions or uni- or bi-lateral
absence of vas deferens). MetS was defined
according to AHA/NHLBI classification.
Erectile and ejaculatory functions were assessed using the International Index of Erectile Function-15 erectile function domain
(IIEF-15-EFD) and the Premature Ejaculation Diagnostic Tool (PEDT), respectively.
Psychological symptoms were investigated
using the Middlesex Hospital Questionnaire
(MHQ).
Results Out of 351 patients, 27 (7.7%) fulfilled MetS criteria. In an age-adjusted
model, MetS was associated with a stepwise
decline in testosterone (T) and SHBG (adj.
r = –0.212, p < 0.0001 and adj. r = –0.136,
p = 0.021, respectively), without a concomitant rise in gonadotropins. All main
sperm parameters (concentration, total
count, progressive motility and normal
morphology) were negatively associated
with increasing number of MetS components, even after adjusting for age. However, when testosterone was introduced as a
further covariate in the model, only sperm
morphology was still associated with MetS
(adj r = –0.199; p = 0.001). In the same logistic model, among scrotal ultrasound parameters, only testis inhomogeneity, but not
testis volume, was positively related to
MetS components (HR = 2.924 [1.205–
7.100]; p = 0.018). The risk of erectile dysfunction (IIEF-EFD score < 26) increased
as a function of number of MetS factors,
being the association confirmed after adjusting for age and T (HR = 2.864 [1.119–
7.326]; p < 0.0001). No association between PEDT score and MetS was observed.
Finally, after adjusting for age and T, only
severe
depressive
symptomathology
(fourth quartile of MHQ-D) was associated
with MetS (HR = 2.703 [1.037–7.050]; p =
0.042).
Conclusions In a cohort of subjects seeking
medical care for couple infertility, MetS
isassociated with hypogonadotropic hypogonadism, characterized by poorer sperm
morphology, testis inhomogeneity, low T,
erectile dysfunction and depressive symptoms. Recognizing MetS could help the patients not only to improve fertility but also
sexual and overall health.
P109
Seminal Apoptotic M540 Bodies
Originate from the Testis: A Study
in a Cohort of Infertile Subjects
M. Maggi, F. Lotti, L. Tamburrino, S. Marchiani,
M. Muratori, G. Corona, M.G. Fino, G. Forti, E. Baldi
Sexual Medicine and Andrology Unit, Department of
Clinical Physiopathology, University of Florence, Italy
Introduction We have recently reported the
presence in semen of round anucleate elements named “M540 bodies”, resembling
apoptotic bodies. The aim of this study is to
investigate, in a cohort of infertile subjects,
associations between their detection, other
parameters of semen quality, and sonographic alterations of the male genital tract.
Methods A consecutive series of 130 males
with couple infertility were evaluated, during the same day session, for clinical, scrotal
and transrectal colour-Doppler-ultrasound
(CDU) characteristics, hormonal and semen
parameters, including interleukin 8 (sIL-8)
and M540 body levels.
Results The average percentage value of
M540 bodies was 24.6 ± 18.3. M450 body
levels were negatively correlated with sperm
number/ejaculate, progressive motility, normal morphology and sIL-8 levels, even after
adjusting for possible confounders (age,
waist, calculated free testosterone and smoking habit) (adj.r = -0.455, p < 0.0001; adj.r =
–0.464, p < 0.0001; adj.r = –0.430, p < 0.001;
adj.r = –0.236, p < 0.05, respectively). In a
subset of patients with a history of cryptorchidism (n = 8), M540 bodies were higher
than in non cryptorchid men (40.5 ± 14.8%
vs 23.6 ± 18.2%; p < 0.02). A negative correlation was found between M540 and ultrasound testis volume, even after adjustment
for confounders (adj.r = –0.241, p < 0.05),
whereas a positive association was found
with testis inhomogeneity (HR = 1.06 [1.02–
1.09]; p = 0.002) and hypoechogenicity
(HR = 1.05 [1.01–1.08]; p < 0.02) along with
FSH levels (adj. r = 0.309; p < 0.01). No relationships were found with any CDU characteristic of the prostate, seminal vesicles,
epididymis and vas deferens. In a multivariate model, testis inhomogeneity and history
of cryptorchidism were independently associated with M540 body levels (adj.r = 0.355,
p < 0.01 and adj.r = 0.223, p < 0.05, respectively). Receiver operating characteristic
(ROC) analysis demonstrated that at the
threshold of 27%, M540 bodies discriminate
subjects with testis inhomogeneity with a
sensitivity of 72% and specificity of 73%.
Conclusions These results strongly suggest
that semen M450 bodies originate from the
testis, as a result of deranged apoptosis due
to an impairment of spermatogenesis. Overall, M540 bodies may be considered a semen
marker of testis apoptosis.
P110
Sperm Oxidative DNA Damage Increases with Age even in Highly
Selected Nellore Bulls
J. Torres Carreira1, J. Teramachi Trevisan2,
L. H. Rodrigues3, S. H. Venturoli Perri4, C. Silva5,
I. Resende de Carvalho2, P. Barbosa da Costa
Gomes2, B. Kipper2, M. Burkhardt de Koivisto2
1UNIRP, Veterinary Medicine, São José do Rio Preto;
2Faculty of Veterinary Medicine, Univ. Estadual
Paulista – UNESP, Clinics, Surgery and Animal Reproduction, Araçatuba; 3Faculty of Agriculture and Veterinary Sciences, Univ Estadual Paulista, UNESP,
Jaboticabal; 4Faculty of Veterinary Medicine, Univ.
Estadual Paulista – UNESP, Department of Production
and Animal Health, Araçatuba; 5CRV Lagoa, Sertãozinho,
Brazil
Introduction Sperm quality decreases with
age, and may be related to an unbalance between a higher production of reactive oxygen species and a decline in antioxidant
production [Pasqualotto and Pasqualotto,
2011]. Studies indicate that ageing of the
male mammals reproductive system may
be characterized by higher rates of sperm
DNA damage. This damages are well documented in humans [Hammiche et al. 2011;
Pasqualotto and Pasqualotto, 2011] and rats
[Zubkova and Robaire, 2006]. Nevertheless, the impact on highly selected animals,
like bulls in an Artificial Insemination Centre is unknown. The aim of this study was to
evaluate the existence of a positive correlation between age, sperm quality and DNA
damage in highly selected Nellore cryopreserved semen samples.
Material & Methods 3 ejaculates from 31
(total 93 samples) highly selected and routinely collected Nellore bulls (3.5–14.3 years)
from an Artificial Insemination Centre were
evaluated for: computer-assisted sperm analysis (CASA), simultaneous evaluation of
plasmatic membrane and acrosome integrity,
mitochondrial potential and DNA oxidation
damages by detection of 8-OHdG production (OxyDNA Kit, Biotrin, Ireland, GB).
The correlation coefficient was calculated
for the selected parameters.
Results The semen traits showed a reduced
quality in ageing animals. Parameters considered desirable, such as total motility (r =
–0.45), progressive motility (r = –0.37), high
mitochondrial membrane potential (r = –0.35)
and simultaneous membrane and acrosome
integrity (r = –0.36) were negatively correlated with age (p < 0.0001). DNA damage
caused by guanine oxidation measured
through 8-OHdG production, were positively
related to bull age (r = 0.63; p < 0.0001) and
can be observed on Figure 20.
Conclusion The results indicate that an oxidative unbalance caused by ageing may affect even highly selected animals, causing a
decrease in semen quality and DNA integ-
J Reproduktionsmed Endokrinol 2012; 9 (5)
397
ECA – Abstracts
manual counting by providing accurate, robust and easy measurement of human sperm
concentration and viability.
ECA – Abstracts
7th ECA-Congress – Abstracts
Figure 20. J. Torres Carreira et
al..Scatterplot of 8-OHdG Percentage and Bull Age.
rity. Further studies are necessary to evaluate
the impact of these damages on fertility.
References:
1. Hammiche F, Laven JSE, Boxmeer JC, et al.
Sperm quality decline among men below 60 years
of age undergoing IVF or ICSI treatment. J
Androl 2011; 32: 70–6.
2. Zubkova EV, Robaire M. Effects of ageing on
spermatozoal chromatin and its sensitivity to in
vivo and in vitro oxidative challenge in the
Brown Norway rat. Hum Reprod 2006; 21:
2901–10.
3. Pasqualotto FF, Pasqualotto EB. Ageing and
Sperm DNA Damage. In: Zini A, Agarwal A.
Sperm Chromatin: Biological and Clinical Applications in Male Infertility and Assisted Reproduction. 1st ed., Springer, New York, 2011; 337–
50.
P111
Feasibility of the Testosterone-inducible CMG2 Protein as Biomarker for Prostate Carcinoma
S. Pelka1, M. Marcou2, T. Greither1, P. Fornara2,
H. M. Behre1
1Centre for Reproductive Medicine and Andrology;
2Department of Urology, University of Halle a. S.,
Germany
Introduction CMG2 (capillary morphogenesis gene 2) was identified as a gene, which
is upregulated during vascularisation. High
affinity of CMG2 protein to laminin and collagen type IV may influence development of
basement membrane and morphogenesis of
endothelial cells. The CMG2 protein occurs
in 4 isoforms, 3 are membrane-bound and 1
is soluble and can be detected in serum.
CMG2 was also identified as testosteroneinducible in the prostate carcinoma cell line
HPr-1AR. Survival analyses of CMG2 mRNA
expression revealed an association between a
low CMG2 mRNA-level in the tumor and a
decreased survival time of soft tissue sarcoma patients. The aim of this study was to
measure CMG2 protein level in serum of
prostate carcinoma patients (n = 260), other
carcinoma patients (renal clear cell carcinoma and urothel carcinoma; n = 20) and
control healthy men (n = 138), and to explore
the feasibility as potential biomarker for
prostate carcinoma as well as its diagnostic
relevance.
Material & Methods The study was approved by the ethics committee of the uni-
398
J Reproduktionsmed Endokrinol 2012; 9 (5)
versity and study participants provided informed consent before entering the study.
The level of soluble CMG2 protein in serum
was measured by immunodetection with specific antibodies (ELISA, antibodies-online,
Aachen, Germany). CMG2 protein expression was statistically correlated with clinical
parameters. Correlation analysis was performed applying bivariate correlation according to Spearman-Rho, Chi-square-tests
and Receiver Operating Characteristics.
P < 0.05 was considered statistical significant.
Results The bivariate correlation according
to Spearman-Rho showed a linkage between
CMG2 protein expression in serum and general appearance of a tumor independent of
prostate carcinoma (p = 0.008; n = 418).
CMG2 was also correlated with metastasis of
the prostate carcinoma (p = 0.039; n = 418).
The Chi-Square-test confirmed these results,
still the general occurrence of a tumor correlates with higher CMG2 serum protein level
(p = 0.015). The Receiver Operating Characteristic (ROC) indicated the diagnostic relevance of CMG2 serum protein level as
marker protein not specific for prostate carcinoma but for the general diagnosis of a tumor (AUC = 0.57; 95%-CI: 0.52–0.63).
Conclusion In this study we could not confirm CMG2 protein as serum biomarker for
the specific diagnosis of prostate carcinoma.
However, high CMG2 protein level correlate
with the general occurrence of a malignant
carcinoma and metastasis of prostate carcinoma.
P112
Molecular Influence of Androgens
on Adipogenic Differentiation of
human SGBS Preadipocytes
M. Kraus1, T. Greither1, M. Wabitsch2, H. M. Behre1
1Centre for Reproductive Medicine and Andrology,
University of Halle a. S.; 2Division of Pediatric Endocrinology and Diabetes, University of Ulm, Germany
Introduction Evidence-based studies demonstrate a clinically significant decrease in
serum testosterone (T) with advancing age in
males. This decrease is associated with a significant increase of adipose tissue mass and
decreased insulin sensitivity. To understand
the mechanism of action of testosterone on
adipose tissue the effects of T on differentiation of progenitor cells to adipocytes are of
special relevance. Several studies demonstrated the suppressive effect of the islet-specific miR-375 on adipogenic differentiation
of mouse preadipocytes and its inhibiting
action on the insulin release of human pancreatic beta cells and murine adiponectin receptor 2 (ADIPOR2). The aim of our study
was to determine the effect of androgens on
miR-375 and ADIPOR2 regulation in human
preadipocytes.
Methods Human SGBS preadipocytes were
cultured and adipogenic differentiation was
induced for up to 14 d +/– T in a dose dependent manner. Dual-Glo® Luciferase Assay
was performed to identify ADIPOR2 as a
predicted target of the miR-375. mRNA expression of ADIPOR2 and miR-375 was
measured by qRT-PCR. Western Blot analysis was performed for detecting protein expression of ADIPOR2.
Results We could demonstrate that ADIPOR2
is a direct target of miR-375. Cells were
transfected with wild type (wt) and mutated
(mt) 3´-UTR of ADIPOR2, and co-transfected with miR-375 mimics (25 and 50 nm).
25 nm of miR-375-mimic affected a decrease
of about 40 % in relation to ADIPOR2 (wt).
In contrast, transfection with miR-375 in relation to ADIPOR2 (mt) did not effect a
change of the expression. Furthermore, qRTPCR analyses revealed that T (100 nm) inhibits miR-375 expression (7-fold) in contrast to differentiated adipocytes without testosterone treatment, and increases ADIPOR2
expression (22-fold) in contrast to untreated
adipocytes. Western Blot analyses exhibited
similar effects on ADIPOR2 expression
Conclusion We conclude that T administration leads to decreased miR-375 expression
and an increased ADIPOR2 expression in
human preadipocytes and thereby inhibits
adipogenic differentiation. These results
may contribute to a better understanding of
the mechanism of increase in visceral fat
mass and the associated insulin resistance
caused by testosterone deficiency.
P113
Androgen Receptor Expression in
Stromal and Epithelial Prostate
Cancer Tissue Specimen
L. Tamburrino1, F. Salvianti1, S. Marchiani1, G. Nesi2,
M. Lanciotti3, M. Carini3, G. Forti1, P. Pinzani1, E. Baldi1
1
Departmetn of Clinical Physiopathology; 2Department
of Human Pathology and Oncology; 3Department of
Urology, University of Florence, Italy
Introduction Prostate cancer (PCa) is one
of the leading causes of tumor death in Western countries. Modifications in expression
and functional alterations that involve the
androgen receptor (AR) have been implicated in the progression of PCa and in the development of androgen independence; however, the role of AR in these processes is still
debated, as contrasting results have been reported in several studies evaluating the relation between AR expression and disease pro-
7th ECA-Congress – Abstracts
Table 11. K. Ausmees et al. Age, Testicular size, BMI, Basic semen and Hormonal parameters in middle aged Males (healthy men vs male
partners of infertile couples.)
Male partners of infertile couples (n = 164)
Total (n = 164)
In couples
with primary
infertility (n = 95)
p-value1
Characteristics
Median (IQR)
Median (IQR)
Age (years)
Testicular volume3 (mL)
BMI (kg/m2)
53.0 (49.0–56.3)
24.0 (22.0–25.0)
26.8 (24.7–29.5)
50.0 (49.0–54.4)
22.0 (18.0–25.0)
27.1 (24.9–29.3)
0.137
0.021
0.734
Basic semen parameters
Semen volume (mL)
Total sperm count (×106)
Sperm concentration (106/mL)
Sperm A+B motility (%)
Normal sperm (%)
WBC in semen
Abstinence time (days)
2.8 (2.1–4.3)
241.5 (150.7–452.3)
89.0 (47.8–179.3)
30.0 (18.8–32.3)
8.0 (2.8–9.3)
0.0 (0.0–0.4)
5.0 (3.0–5.3)
3.2 (2.0–4.5)
97.8 (27.8–223.7)
29.5 (10.0–72.5)
28.5 (16.0–42.0)
4.0 (1.0–7.5)
0.1 (0.0–0.2)
4.0 (3.0–5.0)
Basic hormonal parametes
Testosterone (nmol/L)
Estradiol (pmol/L)
FSH (IU/L)
LH (IU/L)
FSH/LH (IU/L)
16.4 (12.7–20.6)
145.0 (113.8–180.5)
5.1 (3.4–7.3)
2.6 (1.9–3.7)
1.8 (1.3–2.6)
15.1 (11.2–19.8)
94.3 (73.4–134.5)
5.3 (3.6–8.4)
3.1 (2.2–4.6)
1.9 (1.4–2.69)
In couples
with secondary
infertility (n = 69)
ECA – Abstracts
Healthy men (n = 61)
p-value2
Median (IQR)
Median (IQR)
50.0 (49.0–53.0)
22.0 (18.0–25.0)
27.4 (25.0–29.9)
50.0 (49.0–53.0)
22.0 (18.5–25.0)
26.0 (23.9–28.2)
0.454
0.634
0.063
0.768
< 0.00
< 0.001
0.838
0.040
0.768
0.207
3.0 (1.7–4.4)
96.9 (30.0–248.4)
33.0 (9.5–85.3)
30.0 (17.3–42.8)
4.5 (1.0–10.0)
0.1 (0.0–0.3)
4.0 (3.0–5.0)
3.4 (2.3–4.7)
98.8 (31.3–165.5)
26.0 (10.0–62.0)
28.0 (13.8–41.3)
4.0 (1.0–6.0)
0.1 (0.0–0.2)
4.0 (3.0–5.0)
0.396
0.914
0.550
0.479
0.214
0:621
0.197
0.207
< 0.001
0.150
0.998
0.386
16.2 (11.0–25.5)
101.0 (73.4–138.8)
5.3 (3.8–8.3)
3.0 (2.2–4.6)
1.9 (1.4–2.5)
14.3 (11.5–18.9)
90.5 (73.4–131.0)
5.2 (3.5–8.8)
3.2 (2.1–4.6)
2.0 (1.3–2.7)
0.430
0.848
0.693
0.667
0.952
IQR: interquartile range (25th–75th percentile); WBC: white blood cells; FSH: follicle stimulating hormone; LH: luteinizing hormone
1
statistical difference between healthy and male partners of infertile couples (Mann-Whitney test); 2 statistical difference between male subjects in couples with
primary and secondary infertility (Mann-Whitney test); 3 right+left testis/2
gression [Tamburrino et al, 2012]. Such
evaluations are performed in PC specimens
where, however, tumor tissue may be mixed
to stromal and normal. There is now evidence in the literature that AR role in PCa
may vary depending on its location. Indeed,
studies performed in animal models [Niu et
al, 2008] pointed out the different role of epithelial (protective toward a malignant phenotype) vs stromal (leading to tumor aggressiveness) AR in PCa. The present study was
undertaken to evaluate AR expression in
stromal and epithelial compartments of PCa
specimens following careful microdissection.
Material & Methods Stromal and epithelial
AR, EGFR, PSA and PTEN mRNA expression was analyzed in frozen in paraffin-embedded PCa specimens after laser microdissection of the stromal and epithelial compartments, according to a previously published protocol [Pinzani et al, 2008]. Microdissection has been performed collecting
epithelial areas with different Gleason scores
from the same specimens and the relative
surrounding stromal tissue. As reference
genes we used both RPL13a (coding for a ribosomal protein) and GAPDH. As positive
and negative controls for AR we used mRNA
extracted from LNCaP cells and HeLa cells,
respectively.
Results So far we have analyzed 130 microdissected samples from 20 patients and further analyses are in progress. Preliminary results indicate that AR expression is correlated to that of EGFR in epithelial but not in
stromal compartment. No correlation is
found between AR and PSA in both com-
partments, although a trend to positive correlation is present in epithelial compartment
for low levels of AR. PTEN expression tends
to decrease and to become undetectable in
high-grade tumors. AR expression appears
to be lower in microdissected carcinoma areas with higher Gleason scores. In few patients with locally invasive tumors AR expression is higher in stromal respect to epithelial compartment.
Conclusions Evaluation of AR expression
in microdissected PCa specimens may reveal
new insights on the role of the steroid receptor in PCa progression.
P114
Reproductive Function in Middleaged Males: Healthy Men versus
Male Partners of Infertile Couples
K. Ausmees1, 2, R. Mändar3, P. Korrovits3, 4, G. Timberg2,
M. Punab1, 4
1Department of Surgery; 2Urology Unit, Clinic Medita;
3Department of Microbiology; 4Andrology Centre,
Hospital, University of Tartu, Estonia
Introduction The issue of semen quality
and fertility of middle-aged males receives
increasing attention due to trends toward
prolonged life expectancy and higher paternal ages in developed countries. Prior papers
discuss about the lack of discriminating reproductive function between healthy aging
males and those with chronic illnesses or
risks of infertility. There are no previous reports in literature comparing possible differences of reproductive function in the abovementioned groups of males. Therefore, the
aim of this study was to compare the reproductive parameters, including semen quality
and hormonal status, of healthy men > 45
years of age with male subjects of the same
age of infertile couples (with no known female risk factors).
Methods A total of 164 men of infertile
couples with a preceding period of infertility
of at least 12 months and 61 men attending a
prostate health screening and considering
themselves healthy. The semen samples, assessed according to WHO guidelines, were
obtained by masturbation and ejaculated into
a clean collection tube after 2–8 days of
ejaculatory abstinence. Blood samples were
collected for hormonal markers. Physical examination included assessment of body mass
index (BMI) and genital pathologies, i.e. penis, testicles, groin and prostate.
Results According to WHO reference ranges
at the time of investigation (WHO 1999), the
subset of men with three normal variables
(volume, sperm density and total sperm output) in semen analysis was significantly
lower among men in infertile couples compared to healthy subjects (45.7% vs 72.0%,
p = 0.001).
There were significant positive correlations
between testicular volume and semen quality
while negative correlations were observed
between gonadotropin levels and sperm parameters in both groups. We did not find a
significant influence of male age on semen
quality and testis volume in the investigated
groups. At the same time, the subject’s age
was in positive correlation with serum FSH
in men of infertile couples (r = 0.156, p = 0.04)
and with E2 levels in healthy men (r = 0.348,
J Reproduktionsmed Endokrinol 2012; 9 (5)
399
7th ECA-Congress – Abstracts
Table 12. K. Ausmees et al. Correlations of Age, Testicular volume, Hormonal parameters,
BMI and Sperm Quality.
ECA – Abstracts
Male partners of infertile couples (n = 164)
Characteristics
SEVOL
TSO
CONC
MOTIL
MORPHOL
Age (years)
Testicular volume (right + left/2, mL)
Testosterone (nmol/L)
Estradiol (pmol/L)
FSH (IU/L)
LH (IU/L)
FSH/LH (IU/L)
BMI (kg/m2)
–0.020
–0.087
–0.117
–0.111
–0.071
–0.075
–0.010
–0.008
–0.126
–0.5641
–0.085
–0.008
–0.4295
–0.2809
–0.33912
–0.094
–0.135
–0.5172
–0.105
–0.006
–0.4036
–0.25310
–0.34013
–0.830
–0.131
–0.2143
–0.037
–0.066
–0.1817
–0.26311
–0.031
–0.070
–0.080
–0.2104
–0.006
–0.023
–0.2438
–0.142
–0.26214
–0.076
Healthy Men (n= 61)
Characteristics
SEVOL
TSO
CONC
MOTIL
MORPHOL
Age (years)
Testicular volume (right + left/2, mL)
Testosterone (nmol/L)
Estradiol (pmol/L)
FSH (IU/L)
LH (IU/L)
FSH/LH (IU/L)
BMI (kg/m2)
–0.029
–0.103
–0.023
–0.079
–0.009
–0.156
–0.128
–0.018
–0.111
–0.41215
–0.24
–0.056
–0.239
–0.34719
–0.008
–0.064
–0.026
–0.32516
–0.210
–0.023
–0.204
–0.41420
–0.123
–0.021
–0.217
–0.096
–0.245
–0.189
–0.175
–0.079
–0.051
–0.255
–0.114
–0.194
–0.28917
–0.113
–0.30418
–0.246
–0.053
–0.142
SEVOL: semen volume; TSO: total sperm output; CONC: sperm concentration; MOTIL: sperm motility;
MORPHOL: sperm morphology; FSH: follicle stimulating hormone
1, 2, 5–7, 10–14
p < 0.001; 3, 4, 19 p < 0.01; 8, 17, 18 p = 0.02; 9, 20 p = 0.001; 15, 16 p= 0.01
p = 0.01). As concerns hormonal parameters
in male subjects of infertile couples, LH
showed a positive correlation with testosterone (r = 0.244, p = 2 [r = –0.192, p = 0.01])
levels in blood serum while the latter was
also in negative correlation with FSH levels
in healthy subjects (r = –0.366, p = 0.001).
Conclusions Our study revealed that sperm
quality and associated reproductive parameters are related not only to general male aging as described previously. There are some
obvious differences in clinical parameters
between men of infertile couples and healthy
middle-aged males – differences in testicular
volume, sperm quality and hormonal levels
in blood serum. Further and more detailed
investigations on a wider scale are required
to determine the actual age-related risk factors for reproductive function, and whether
those factors could be related to lifestyle,
environmental or physiological conditions
(Tab. 11, 12).
P115
Impact of Childhood Maltreatment on Psychological State and
Sexual Performance of Men Facing Timed Intercourse (TI)
C. Bak, J. S. Byun, J. H. Gwak, H. H. Seok, S. W. Lyu,
T. K. Yoon
Andrology, Zaii Medical Centre, Seoul, Republic of
Korea
Background Child maltreatment, or abuse,
is the physical, sexual, emotional mistreatment, or neglect of children. In the UK, there
are approximately 30,000 children on Child
Protection Registers at any one time [Government Statistical Service, 2003]. The experience of abuse in childhood was reliably
associated with an increased risk of disease
400
J Reproduktionsmed Endokrinol 2012; 9 (5)
in adulthood including neurological, musculoskeletal, cardiovascular, and respiratory
conditions [Arias, 2004]. There is now
sound evidence that brain/neurobiological
changes accompany the psychological manifestations following abuse and neglect
[Glaser, 2000]. Boys are more likely to be
victims of severe physical abuse, psychological abuse, and neglect, whereas girls are
more likely to be victims of sexual abuse.
During the fertile window of a woman’s
menstrual cycle, the impact of impending
timed intercourse (TI) on male partners has
only been recently investigated. We aimed to
evaluate the effect of CM on men facing TI,
compulsory sexual intercourse in nature, a
stressful event.
Methods This prospective study consisting
of 439 men was conducted during a 3-year
period between July 1, 2008 and June 30,
2011. Various characteristics were evaluated, including the experience of childhood
maltreatment (CM), newly acquired erectile
dysfunction (ED), extramarital sex (EMS),
daily intake of soft drinks (SDs), the Beck
Anxiety Inventory (BAI), the Buss Perry
Aggression Questionnaire (BPAQ), the levels of hormones, such as follicle-stimulating
hormone (FSH), luteinizing hormone (LH),
testosterone (T), prolactin (PRL) and estradiol (E2).
Results A total of 39 men (8.88%) experienced CM. Among them with CM, 29 men
(74.4%) experienced ED with their spouses
while 24 (61.5%) consumed soft drinks on a
daily basis. Those who experienced CM tend
to complain more ED, experience EMS and
consume SDs on a daily basis. Among the
hormones investigated, the levels of E2 was
significantly lower in men with CM (p =
0.0019). Those with a history of CM also reported statistically higher level of BAI and
subscales of BPAQ- anxiety, anger, hostility
and violence. TI significantly raised subscales of BPAQ in men with CM.
Conclusions TI imposes a great deal of
stress with more severe degree on men with a
past experience of CM that apparently affects the basal level of BAI before and after
TI, hence, hinders the men to achieve the required erection to perform TI. Physicians
and clinicians should acknowledge the potential harmful effects of CM on men facing
TI, a stressful condition.
P116
Metachronous Bilateral Testis Tumors with Different Histology –
A Case Report
J. Peralta, C. Rabaça, A. Sismeiro, R. Godinho,
P. Conceiçã
Portuguese Institute of Oncology of Coimbra, Urology,
Coimbra, Portugal
Introduction Germ Cell Testis Tumors
(GCTT) affect mainly young adults. The incidence increased 50% in recent years in developed countries, particularly the seminoma variant. They are solid tumors with
very good prognosis, even in advanced disease and are the paradigm of the need of
multimodal therapy. The known risk factors
are cryptorchidism, trauma, testicular atrophy, prior testicular tumor, and infertility.
Case Report This is a patient who underwent right radical orchiectomy with placement of testicular prosthesis three months
before, for Non Seminoma Germ Cell Testis
Tumor (NSGCT), and proposed for surveillance, during which, he initiates a slight increase of B-HCG and develops hard painful
lump. Physical examination and ultrasonography diagnosis was compatible with a tumor of the contralateral testicle. Regarding
the size and location of the lesion he was first
proposed for excisional biopsy and biopsies
of the tumor bed. Histology revealed a Seminoma GCT with Tin on the tumor bed. Because he had normal Testosterone production and paternity was not an option anymore
he was proposed for adjuvant radiotherapy.
Discussion The incidence of bilateral testicular tumors, synchronous and or metachronous is 2–3%. At the time of orchidectomy, the incidence of Cis in contralateral
testis is 5% however it remains low the
prevalence of contra-lateral tumors (1%),
and therefore the screening of the contralateral testis is not instituted, although it is recommended self-assessment by physical examination regularly.
The incidence is also correlated with age at
onset (early age) in seminoma and the type of
histology. Treatment decisions in contralateral tumor should take into account the stage
and treatment carried out for the first tumor,
current stage of disease and hormonal status
of the patient and his will of fatherhood.
Conclusion This work aims to highlight the
need for a regular follow-up, rigorous and
prolonged, and the complications inherent to
this fact, making use of self-examination as
an important part of it, and made aware that
the greatest risk factor for a contralateral tumor is a prior TCGT. It also calls into question the best choice of treatment for that specific patient.
P117
Pituitary Transforming Gene 1
(PTTG1) Expression in Seminoma
F. Pierconti1, M. Martini1, G. Grande2, T. Cenci1,
G. Gulino3, G. Schinzari4, L. M. Larocca1, A. Pontecorvi2,
L. De Marinis2, D. Milardi5
1Department of Pathology; 2Unit of Endocrinology,
Department of Clinical Medicine; 3Department of
Urology; 4Unit of Medical Oncology, Department of
Internal Medicine; 5International Scientific Institute
“Paolo VI”, Catholic University of the Sacred Heart,
Rome, Italy
PTTG1 is a securing and plays a critical role
in mitosis by inibition of sister chromatid
separation. PTTG1 is overexpressed in a variety of tumors. Moreover PTTG1, as a transcription factor, can directly and indirectly
induce expression of genes involved in tumorigenesis and cancer development. PTTG1
also induced VEGF and MMP2, involved in
tumor development and cancer metastasis.
In order to clarify the role of PTTG1 in testis
tumor, the expression of PTTG1 was evaluated by immunohistochemistry on formalinfixed and paraffin-embedded specimen testicular tissues from 53 male patients underwent to therapeutic orchidectomy.
PTTG1 staining was located in the nuclear
and cytoplasm of neoplastic cells. Within the
tumor we identify a peripheral zone as edge
of neoplasia and neoplastic tissue up to 1 mm
towards interior of the tumor and central
zone as neoplastic areas further than 1 mm
from the border of the tumor. In the peripheral area, PTTG1 immunoreactivity was detected mostly localized in the nucleus, while
in the central area PTTG1 staining was evident more intensely in cytoplasm of positive
elements.
PTTG1 expression was significantly lower
in the central when compared with the peripheral area, with a greater number of positive cells in the borders of the tumor and Δ
periphery/centre significantly correlate with
the size of the tumor. In seminoma with tumor diameter > 25 mm PTTG1 expression
was significantly higher in the peripheral
area; instead in seminoma with tumor diameter ≤ 25 mm, different distribution of
PTTG1 positive cells from peripheral to central area has not been found. When compared
the percentage of PTTG1 positive elements
in the same area between different subgroups, in the central area tumors with
greater size showed less percentage of
PTTG1 positive elements than the smaller
one. In the peripheral area of both subgroups
PTTG1 positive elements were higher in the
subgroup B, but the difference was not significantly.
PTTG1 positive staining was also reported in
the peritumoral region and properly in the
areas of tumor infiltration and in the interstitial intertubular spaces. In these areas the
PTTG1 positive cells were about 40% of
neoplastic cells was observed. PTTG1
nuclear staining pattern was prevalent.
For the first time we described neoplastic
PTTG-1 cells in seminoma. Our data support
the idea that PTTG1 expression in the front
of the tumor infiltration and in the intertubular areas might be involved in the invasion of
surrounding tissue. When the tumor is very
small, at the beginning of the carcinogenic
process, all PTTG-1 positive cells are
present in the centre of the lesion and, increasing the tumor, they might move to the
periphery to facilitate neoplastic infiltration.
ECA – Abstracts
7th ECA-Congress – Abstracts
Figure 21. J.E. Elzinga-Tinke et al.
P118
Early Detection of Carcinoma In
Situ of the Testis with a New
Non-Invasive Method
J. E. Elzinga-Tinke1, G. R. Dohle2, L. H. J. Looijenga3
1Urology/Pathology; 2Urology; 3Pathology, Erasmus
Medical Centre, Rotterdam, Netherlands
Introduction Testicular germ cell tumors
(TGCT), i. e. seminomas and non-seminomas, are the most common malignancy in
Caucasian men aged 15–45 years. The common precursor of all TGCT is Carcinoma in
situ (CIS) of the testis. CIS arises during development of the fetal testis and, under the
influence of testosterone, progresses after
puberty into cancer.
The majority of TGCT patients require, in
addition to surgery, also irradiation and/or
chemotherapy for cure. In spite of an overall
high cure rate (> 95%), exposure to radiotherapy or chemotherapy in these young men
have significant long term effects, including
cardiovascular disease, metabolic syndrome,
infertility and even second malignancies.
Treatment of CIS consists of a low dose irradiation with a cure rate of 100%.
Hence, early identification CIS is currently
based on an open surgical biopsy as gold
standard. Non-invasive methods for CIS detection are reported, like scrotal ultrasound
and immunohistochemical detection of
OCT3/4 (POU5F1) on semen. The aim of
this study is development of an informative
non-invasive detection method for CIS.
Material & Methods A pilot study composed of three groups was performed, including 2 patient groups (I and II) and one
control group (III). Patients of group I included men with TGCT risk factors (infertility, testis atrofy, cryptorchism or previous
unilateral TGCT). Patients of group II included men with the risk factors and presence of testicular microlithiasis (TM) on ultrasound. The control group (III) consisted
of normospermic men from couples with reduced fertility without TGCT risk factors.
Between June 2009 and June 2012, in total
82 men (28 in I, 24 in II and 30 in III) were
prospectively enrolled. Analysis was performed on scrotal ultrasound, semen diagnostic (OCT3/4) and additional clinical data.
Results The reproductive hormones luteinizing hormone (LH), follicle stimulating hor-
Figure 22. J.E. Elzinga-Tinke et al.
mone (FSH) and inhibin were significantly
different between the 3 groups (p < 0.001,
p = 0.001 and p < 0.001 respectively). Inhomogeneous testicular parenchyma (group II
vs I and III: p = 0.002) is, beside TM, a significantly ultrasound characteristic between
the 3 groups. Semen analysis according to
WHO classification (2010) is not significantly different between patient group I and
II (p = 0.113). So far, the intermediate analysis of 25 out of 82 semen OCT3/4 stainings
has been done, revealing four positive cases
(1/8 group II and 3/10 group III).
Conclusion An inhomogeneous testicular
parenchyma, besides TM, is more common
in men with multiple risk factors for TGCT.
The semen diagnostic (OCT3/4) should be
further analyzed and developed, but is promising as non-invasive detection method for
CIS (Fig. 21, 22).
P119
Testicular Cancer: Awareness and
Testicular Self Examination in a
Portuguese University Setting
I. Braga1, 2, N. Louro1, J. LaFuente de Carvalho1, A. Fraga1
1
Urology, Centro Hospitalar Porto; 2Health Sciences
School, University of Minho, Braga, Portugal
Introduction Testicular cancer (TC) is one
of the most common malignancy in young
population. The incidence of this malignancy appears to be increasing worldwide.
The cure rate for TC now approaches 100%,
but is negatively influenced by the delay in
seeking medical attention. The lower public
awareness to this type of cancer and the lack
of testicular self-examination (TSE) are pre-
J Reproduktionsmed Endokrinol 2012; 9 (5)
401
ECA – Abstracts
7th ECA-Congress – Abstracts
sumed reasons for the late presentation to
medical care.
Our objective was to analyze and evaluate
the awareness of TC and TSE in Portuguese
men in an university setting.
Methods We performed a survey of 13
questions concerning the awareness of TC
and the practice and perceived importance of
TSE in 496 men from the university. The
questionnaire was sent to the institutional
email of students, professors and other workers and the data were collected and then analyzed.
Results Our population had a mean age of
30.7 ± 10.7 years. 49 (9.9%) participants
were medical students. 389 (78.4%) of the
participants reported that they had knowledge about TC, but only 49 (9.9%) answered
all the questions correctly. 186 (37.5%) reported they performed self-examination, but
only 39 (7.9%) did it every month. When
asked about the importance of performing
TSE in a Lickert-tipe scale (from 1–10), 464
(93.5%) of the population answered 5 or
more, with 218 (44%) participants considering it extremely important (a value of 10 in
the scale). 17 (3.4%) participants were both
well informed about TC and had been performing TSE once a month as suggested.
The medical students demonstrated higher
level of knowledge when compared to the
others participants (p < 0.05).
Conclusion The present study represents a
first approach to characterize the awareness to
testicular cancer in a Portuguese population.
Despite a relatively high number of participants answered that they had knowledge
about TC, only a relatively small number answered correctly to all the questions. A great
number of participants considered that TSE
was important, but less than 8% performed it.
This population has some awareness of testicular cancer, but still lack correct information about this disease and about testicular
self-examination.
Table 13. R. Donat et al. Post Chemotherapy Orchidectomy Outcome and Survival Data
Group
n
Early
13
Early
3
Testis pathology
RPLND
Alive
Scar/necrosis
6
12
4.4
1
3
0
4.6
3**
Delayed
2
Scar/necrosis
0
2
8.4
1***
Delayed
3
Tumor
1
2
7.5
0
* Mean of available follow-up, patients usually discharged to general practice after 5 recurrence free years.
** Includes one death from secondary rhabdomyosarcoma (74 mo) and one death from Teratoma differentiated (82 mo).
*** Non-cancer death from bowel adhesions after radiotherapy + chemotherapy (75 mo)
Results 21 patients were identified with the
majority diagnosed with non-seminomatous
germ cell tumors and Marsden Stage III and
IV disease.
16 patients underwent standard orchidectomy
within 12 months of commencing chemotherapy, with five patients undergoing significantly delayed orchidectomy for a variety of reasons.
Orchidectomy in the standard group showed
tumor necrosis or a scar in the majority of
patients (n = 13) (81%), with differentiated
or mature teratoma found in three patients
associated with bulky poorly responsive retroperitoneal disease.
In the delayed orchidectomy group three patients had viable seminoma, of which two
were associated with carcinoma in situ
(CIS).
Conclusion Our study raises concerns as regards a potentially high risk of late tumor
development in testis which are preserved
despite apparent tumor resolution after chemotherapy.
The data support the standard recommendations for orchidectomy following chemotherapy and suggest the concept of a testis
preservation policy in selected patients is not
without risk (Tab. 13, 14).
P121
Biological Hypogonadism and Abnormal Sperm in Males affected
by Testicular Cancer
R. Donat1, S. Ramsey1, G. Kerr2, G. Howard2
Urology; 2Oncology, Western General Hospital, Edinburgh, UK
Z. Branko, U. Breda, P. Marija, O. Jozko, K. Andreja
Reproductive Unit, Obstetrics and Gynecology,
Ljubljana, Slovenia
Question To examine the outcome of de-
Introduction Hypogonadism in males is a
complex clinical syndrome defined by low
level of testosterone and diminished sperm
production. There is a high incidence of hypogonadism after cancer treatment in the
childhood. In testicular cancer, post-treatment hypogonadism has been suggested to
be more frequent if present already before
cancer treatment. At our institution a longitudinal prospective study on fertility after
testicular cancer is underway with the aims
to improve the understanding of sexual
behaviour and fertility in men who had survived testicular cancer. The preliminary results presented here concern the hormonal
status of the patients and sperm quality.
layed orchidectomy following primary chemotherapy in patients with metastatic testicular cancer.
Methods A retrospective analysis of patients who underwent primary chemotherapy
without initial orchidectomy for testicular
cancer between 1982 and 2006.
Patients were identified from the regional
oncology cancer database in our tertiary referral hospital.
Case notes were reviewed regarding initial
presentation, chemotherapy, clinical progress
and pathological outcomes following surgery.
402
J Reproduktionsmed Endokrinol 2012; 9 (5)
RIP
Tumor
P120
Delayed Orchidectomy after Primary Chemotherapy for Metastatic Testicular Cancer
1
Follow-up
(yrs, mean*)
Material & Methods Among 194 men who
were referred for sperm cryopreservation before orchidectomy between January 2007
and December 2011, 100 men aged between
19 and 42 years accepted to participate in the
study. Hormone assessment consisted of
FSH, free and total testosterone (TT), SHBG
and free testosterone index (ratio TT/SHBG).
Additionally classical sperm analysis and
sperm DNA fragmentation (TUNEL method)
were determined immediately before or after
orchidectomy (T0, n = 87), at one (T1, n = 60)
and 2 years (T2, n = 67). All tumors were
germ cell. Increased FSH (> 11 IU/L) indicated primary (1.) hypogonadism, and low
FSH (< 0.7 IU/L) secondary (2.) hypogonadism.
Results At T 0, 1. and 2. hypogonadisms were
frequent and equally represented, respectively 19.5 and 18.4 %. Patients with 2. hypogonadism were affected by more aggressive
non-seminomatous tumors. At T1, all patients with 2. hypogonadism but one developed 1. hypogonadism. At T1 and T2, 1. hypogonadism was present in respectively 58%
and 55% patients. At T0, T1 and T2, percentages of men with low testosterone (TT
< 8 nmol/L) were respectively 17%, 16%
and 6%. Sperm concentration < 15.106/mL
was respectively 30%, 47% and 24%. Abnormal sperm DNA fragmentation (> 20%)
was unchanged and high along the study at a
50% rate.
Conclusions These preliminary results confirm that hypogonadism is frequently observed in patients affected by testicular cancer even before any treatment toxic for germ
cells. Secondary hypogonadism has no
equivocal etiology whereas 1. hypogonadism
may be explained by pre-existent gonadal
dysfunction. Sperm quality is affected and
remains poor with a 50% sperm DNA fragmentation at T2. Testosteron production is
affected in about 6 to 15% patients. Beside
recommended hormonal and sperm evaluation at semen cryopreservation, it might be
reasonable to test testicular cancer survivors
also at distance. Further studies will indicate
us how long and with which regularity.
7th ECA-Congress – Abstracts
Table. 14. R. Donat et al. Patients Undergoing Delayed Orchidectomy > 12 Months after Commencing Chemotherapy (delayed group).
Initial pathology
Back pain
Anaplastic seminoma
IGCCC
Marsden
Good
3
Metastatic
response
Testicular
investigations
Reason for
orchidectomy
Fibrosis only at
RPLND for
enlarging mass
Normal USS at
presentation
Right testicular
pain, incidental
finding of lesion
on left on USS
44
Seminoma
+ CIS
Exploration and
frozen section
normal 12 months
post chemo
Time
(months)
Pathology
(orchidectomy)
Right loin pain,
loin mass
Seminoma
Good
1
Resolution of
mass on CT
Intra-abdominal
testis likely
primary site
Initially deemed
too risky; reviewed
later and excision
recommended
68
Atrophic testis
Back pain, left
retroperitoneal
mass
Germ cell tumor
likely seminoma
Inter
4
Partial response
to second line
chemo
Clinically normal
left testis
New left testis
mass clinically
52
Seminoma
+ CIS
Lesion increasing
in size on USS
19
Seminoma
Increase in testis
size clinically
68
Fibrous scar
No documentation
of USS
Abdo pain,
weight loss
Teratoma (MTU)
Good
3
Partial response
No mass clinically
No RPLND –
deemed irresectable
USS – 12 mm focus
likely granuloma
Patient declined
surgery initially
Loin pain,
weight loss
Teratoma
Inter
4
Partial response
Left tumor on USS
Exploration 24/12 –
scar only
Hypoechoic area
on USS
Concerns despite
negative exploration
P122
Prevalence of Intratubular Germ
Cell Neoplasia in Testicular Biopsies of Infertile Iranian Men
H. Soltanghoraee, F. Pourkeramati, M. M. Akhondi,
N. Amirjanati
Avicenna, Tehran, Iran
Objective Infertility is one of the compo-
nents of testicular dysgenesis syndrome
which defined as intratubular germ cell neoplasia (IGCN), cryptorchidism, hypospadias
and low sperm counts. It is proved that these
features could occur together. Previous studies in different parts of the world show various prevalence of CIS in infertile men (0–
3.7%). There is no basic study about prevalence of CIS in Iranian infertile men, thus the
aim of this study was to achieve prevalence
in Iran.
Material & Methods We evaluate testicular
biopsies of 1153 infertile men referring to
pathology lab, from which 150 patients were
suspicious for CIS. Then we applied immunohistochemistry for placental alkaline phosphatase (PLAP) marker for diagnosis of CIS.
Results Positive results were detected in 7
(0.6%) out of all 1153 patients of which 6
(1.1%) were positive out of 633 patients < 35
years.
Conclusion This study was the first one
inIranrevealing prevalence in the range of
other countries.
P123
Variations in Testosterone Pathway Genes and Susceptibility to
Testicular Cancer in Norwegian
Men
W. Kristiansen1, E. Aschim1, J. Andersen1, O. Witczak1,
S. Fosså2,3, T. Haugen1
1College of Applied Sciences, Oslo and Akershus University; 2Faculty of Medicine, University of Oslo;
3Department of Oncology, Oslo University Hospital,
Oslo, Norway
Introduction Imbalance between the estrogen and androgen levelsin uterois hypothesized to influence testicular cancer (TC)
risk. Thus, variation in genes involved in the
action of sex hormones may affect an
individual’s susceptibility to TC. Mutations
in testosterone pathway genes may alter the
level of testosterone both in utero and later in
life and may hypothetically alter the risk of
developing TC. Luteinizing hormone receptor (LHR), 5α-reductase II (SRD5A2), and
androgen receptor (AR) are key elements in
androgen action. A case control study was
conducted for investigation of polymorphisms in the LHR, SRD5A2 and AR genes
and their possible association with TC.
Material & Methods 651 TC cases and 313
controls from the Norwegian population were
included in the study. The LHR Asn291Ser
and Ser312Asn as well as the SRD5A2
Ala49Thr and Val89Leu polymorphisms
were analyzed by allele specific PCR and gel
electrophoresis, the LHR InsLQ polymorphism was genotyped by sequencing and the
number of AR CAG and GGN repeats was
determined by capillary electrophoresis. The
differences in genotype distribution between
TC cases and controls were analyzed by binary logistic regression. P-values adjusted
for multiple testing were calculated using the
Bonferroni method, by multiplying the crude
p-value by the number of markers analyzed
(n = 7).
Results The controls were statistically significantly more often heterozygous for the
LHR Ser312Asn polymorphism than the TC
cases (OR = 0.66, 95%-CI: 0.48–0.89, Pcrude =
0.007, Padj = 0.049). None of the other investigated polymorphisms were associated with
risk of TC. Furthermore, we found no statistically significant differences in genotype
frequencies between the histological subtypes seminoma and nonseminoma after adjusting for multiple testing.
Conclusion Our results may suggest a possible association between genetic variation
in the LHR gene and the risk of developing
TC. The association should be verified in
larger studies.
J Reproduktionsmed Endokrinol 2012; 9 (5)
403
ECA – Abstracts
Presentation
7th ECA-Congress – Abstracts
ECA – Abstracts
P124
Genetic Variations in Signal Transduction Pathways and Risk of Testicular Germ Cell Tumor in a Large
Swedish-Norwegian Case-Parent,
Case-Control Study
R. Karlsson1, W. Kristiansen2, K. E. Andreassen3,
E. L. Aschim2, R. M. Bremnes4, O. Dahl5, S. D. Fosså6,
O. Klepp7, C. W. Langberg8, A. Solberg9, S. Tretli3,
P. K. E. Magnusson1, H.-O. Adami1, T. B. Haugen2,
T. Grotmol3, F. Wiklund1
1Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; 2Faculty of Health Sciences Oslo and Akershus College of
Applied Sciences, Oslo; 3Department of Etiologic Research, Cancer Registry of Norway, Oslo; 4Department
of Oncology, University Hospital North Norway; Tromsø;
5Department of Oncology, Haukeland University Hospital, Bergen; 6Department of Oncology, Radiumhospitalet, Oslo University Hospital; 7Department of Oncology, Ålesund Hospital, Ålesund; 8Department of Oncology, Oslo University Hospital, Ullevål, Oslo; 9Department of Oncology, St Olav’s University Hospital Trondheim, Norway
Introduction Testicular germ cell tumor
(TGCT) is the most common malignancy in
young men. The aetiology is still unclear, but
an imbalance between the sex hormone levels in utero is hypothesized to influence
TGCT risk. Genome-wide association studies have identified single nucleotide polymorphisms (SNPs) in genes encoding proteins involved in several signalling pathways
associated with TGCT risk. This study aimed
to verify previously reported associations in
a Swedish-Norwegian population, and investigate whether associations differed by
parental sex and histologic subtype (seminoma/nonseminoma).
Material & Methods DNA from Swedish
and Norwegian TGCT cases and their parents was genotyped using Sequenom
MassARRAY iPLEX Gold. After sample
and genotyping quality control; 98 SNPs
tagging common variation in 831 case-parent triads, 474 dyads and 712 singletons
were included. 3922 unrelated male controls
were included from a population-based study
of Swedish twins (TWINGENE). DNA was
genotyped on an Illumina OmniExpress
bead chip. Additional SNPs were imputed in
both samples using BEAGLE and reference
haplotypes from the 1000 genomes project.
After imputation a total of 852 SNPs were
analyzed. SNP-TGCT association in the
combined case-parent, case-control study
was tested using UNPHASED. Forward
stepwise regression within each gene was
applied to find independent association signals. Heterogeneity was tested for the markers in each gene most strongly associated
with TGCT.
Results All genes were significantly associated with TGCT. The lowest unadjusted Pvalues (per gene) were; ATF7IP: 6.2e-06;
BAK1: 2.1e-10; DMRT1: 6.7e-25; KITLG:
2.1e-48; SPRY4: 1.4e-29; TERT: 1.8e-18.
Most genes had more than one independent
association, and one marker in TERT
(rs4975612) has to our knowledge not been
404
J Reproduktionsmed Endokrinol 2012; 9 (5)
reported previously. A significant difference
by parental sex was observed for rs10463352
in SPRY4 (p = 0.0008, ORmat = 1.56, ORpat =
1.03). No evidence of heterogeneity between
seminoma and nonseminoma was found.
Conclusion We validated previously reported associations in a large case-parent,
case-control study. We also found a new, independent association in TERT. The genes
within these loci are all biologically plausible candidates for TGCT predisposition
and correspond to three distinct pathways;
KITLG, SPRY4 and BAK1 are all involved
in primordial germ cell development through
the KIT/KITLG signaling pathway, TERT
and ATF7IP are involved in telomerase
regulation and DMRT1 is important for sexdetermination. The case-parent design indicated one marker in SPRY4 interestingly associated with TGCT only when inherited
maternally. Expression- and functional analyses will be required to identify the true causative variants and mechanisms of TGCT predisposition.
 Postersession 7: Andrology along the Lifeline &
Metabolic Syndrome and
Reproductive Function &
Hypogonadism
P125
Evaluation of Oxidative Stress in
Diabetic Patients with Erectile
Dysfunction
F. Escórcio de Almeida1, M. Almeida2, N. Louro1,
J. LaFuente Carvalho1, S. Ribeiro1, A. Fraga1
1Urology, Centro Hospitalar do Porto; 2Instituto
Politécnico do Porto, Escola Superior de Tecnologias
de Saúde do Porto, Portugal
Introduction Diabetes produces a number
of physiological changes that affect the penile erectile ability, the synthesis of androgens, autonomic neuropathy, peripheral sensory and motor neuropathy, an increase in
smooth muscle contractility, injury to the endothelium, in addition to psychological components (depression). Each of these components alone or together may be a cause of
erectile dysfunction and/or perturbation of
sexuality in diabetic patients. Prolonged hyperglycemia leads to decreased production
of NO levels and increased formation of oxygen free radicals. Hyperglycaemia originates
penile hemodynamic changes and decreases
endothelium-dependent vasorelaxation via
the NO/cGMP.
Objective Evaluation of oxidative stress on
erectile dysfunction (ED) in human serum
samples.
Methods We selected 60 patients (34 type 2
diabetics and 26 non-diabetics) with ED, in
our institution. We performed a clinical
evaluation and measurement of serum HbA1c,
lipid profile and total testosterone levels.
Changes in libido, recent surgery, and active
infections were exclusion criteria. Serum
levels of GSH/GSSG were determined by
high performance liquid chromatography.
Results Patients average age was 59 years.
The mean duration of diabetes was 10 years.
The mean duration of ED was 4 (diabetics)
and 2 years (non-diabetics). The mean waist
circumference was 99 in diabetic patients
and 84 cm in non-diabetic. The mean International Index of Erectile Function Questionnaire score was 8 (diabetics) and 10
points (non-diabetics). 67% of diabetic and
38% of non-diabetic patients were treated
with PDE5 inhibitor (sildenafil citrate). The
success rate was 50% for diabetic patients
and 54% for non-diabetics. The average
GSH/GSSG ratio was 3 for non-diabetic patients and 1.5 for diabetics. In the subgroup
of diabetic patients treated with PDE5 inhibitor without success the ratio GSH/GSSG
ratio was 1.1.
Conclusions Diabetic patients have a generalized decrease in GSH/GSSG ratio. We
found that for higher levels of prolonged
hyperglycaemia there was a considerable decrease in GSH/GSSG ratio, more noticeable
in the sub-group of diabetic patients with
poor response to treatment with PDE5 inhibitor. The measurement of GSH/GSSG ratio may be an indicator of treatment efficacy
with PDE5 inhibitor. The method used for
determination of serum GSH/GSSG levels is
relatively inexpensive with easy reproducibility. Prospective studies with larger samples
are needed to corroborate these results.
P126
Effect of the Metabolic Syndrome
on Male Hormonal Status and
Sperm Function: A Case-Controlled Pilot Study
K. Leisegang1, 2, R. Henkel2, P. Bouic3, A. Udodong2
1Natural Medicine; 2Medical Bioscience, University of
the Western Cape, Bellville; 3Pathology, University of
Stellenbosch, Tygerberg, South Africa
Components of the metabolic syndrome
(MetS) in males include central adiposity,
hypertension, dyslipidaemia, glucose intolerance and hypogonadism. As a relationship
between MetS and male subfertility has not
yet been directly investigated, this case controlled pilot study aimed to assess the effect
of MetS on testosterone, progesterone and
semen parameters. Recruited males aged 24–
67 years old (n = 54) had body mass index
(BMI), waist-hip ratio (WHR), diastolic
blood pressure (dBP) and systolic blood
pressure (sBP) recorded. Fasting blood
samples were analyzed for HDL cholesterol,
triglycerides (TG) and glucose (Glu). Saliva
samples were assayed for testosterone (T)
and progesterone (P) concentrations, and semen samples were analyzed for sperm concentration, sperm motility, vitality, mitochondrial membrane potential (MMP), DNA
fragmentation (DF) and leukocyte concentration. Participants on any hormonal therapy,
with known reproductive system disorders
or leukocytospermia (> 106) where excluded
from analysis. Based on the criteria for diagnosis of MetS, the participants were divided
into a control group (n = 28) or the MetS
group (n = 26). Predictable differences were
found between the groups for BMI, WHR,
dBP, sBP, HDL, TG and Glu. The MetS
group showed significant reductions in
sperm concentration (p = 0.003), total motility (p = 0.029), sperm vitality (p = 0.002),
MMP (p = 0.004), DF (p = 0.029), T (p =
0.009) and P (p = 0.013). Overall, the clinical, biochemical and semen parameters correlated as expected. Age correlated positively with DF (r2 = 0.35) and negatively
with progressive (r2 = –0.44) and total (r2 =
–0.35) motility, vitality (r2 = –0.35) and FT
(r2 = –0.31). BMI correlated positively with
MMP (r2 = 0.41) and negatively with sperm
concentration (r2 = –0.38), total motility (r2 =
–0.3), vitality (r2 = –0.39). WHR correlated
positively with DF (r2 = 0.43) and negatively
with total motility (r2 = –0.3) and vitality
(r2 = –0.36). dBP correlated negatively with
sperm concentration (r2 = –0.38), total motility (r2 = –0.33), vitality (r2 = –0.36) and P
(r2 = –0.34). TG correlated negatively with T
(r2 = –0.38). Glu correlated positively with
DF (r2 = 0.32) and negatively with total motility (r2 = –0.3) and vitality (r2 = –0.35). T
correlated positively with P (r2 = 0.58). Although limited by sample size, the results indicate that MetS males without leukocytospermia have compromised sperm parameters that may negatively affect fertility. A
reduction in P suggests that steroidogenesis
cascades may be compromised, resulting in
hypogonadism. Although it can be hypothesized that chronic inflammation and oxidative stress associated with MetS may provide
a novel explanation for these results, the
mechanisms for this relationship also require
investigation.
P127
Restoring Testosterone to Normal
Levels in Elderly Men is Efficacious
in Weight Reduction: A Follow-upStudy over 5 Years
A. Haider1, F. Saad2, 3
Private Urology Practice, Bremerhaven; 2Global Medical Affairs Andrology, Bayer Pharma AG, Berlin, Germany; 3Gulf Medical University School of Medicine,
Research Department, Ajman, UAE
1
Introduction & Objectives Obesity is associated with reduced testosterone, and low
testosterone induces weight gain. This study
analyzed the effects of normalization of serum testosterone on anthropometric parameters in mainly elderly, hypogonadal men.
Methods Open-label, single-centre, cumulative registry study of 255 men (mean age 60.6
± 8.0 years), with testosterone levels
≤ 3.5 ng/mL. 215 men were studied for at least
2 years, 182 for 3 years, 148 for 4 and 116 for
at least 5 years. They received parenteral testosterone undecanoate 1000 mg/12 weeks after an initial interval of 6 weeks.
Results The following changes were observed: weight (kg) decreased from 106.22 ±
16.93 (minimum: 70, maximum: 139) to
90.07 ± 9.51 (min 74, max 115). The statistical significance was p < 0.0001 vs baseline
and vs the previous year over 5 years indicating a continuous weight loss over the full
observation period. Waist circumference
(cm) declined from 107.24 ± 9.14 (min 86,
max 129) to 98.46 ± 7.39 (min 84, max 117)
(p < 0.0001 vs baseline and vs the previous year
over 5 years). Body mass index (BMI, m/kg2)
declined from 33.93 ± 5.54 (min 21.91, max
46.51) to 29.17 ± 3.09 (min 22.7; max 36.71)
(p < 0.0001 vs baseline and vs the previous
year over 5 years). The mean per cent weight
loss after 1 year was 4.12 ± 3.48%, after 2
years 7.47 ± 5.01%, after 3 years 9.01 ±
6.5%, after 4 years 11.26 ± 6.76% and after 5
years 13.21 ± 7.24%. At baseline, only 5% of
men fell into the normal weight category
(BMI ≤ 24.9). 24% were overweight (BMI
25–29.9), 57% obese (BMI 30–40) and 14%
morbidly obese (BMI ≥ 40). At the end of the
observation period, 95% of men had lost any
weight, 90% had lost ≥ 5 kg, 76% ≥ 10 kg,
53% ≥ 15 kg, and 31% lost ≥ 20 kg. At baseline, only 4% of men had a normal waist circumference (< 94 cm), 27% had an increased
waist circumference (94–101.9 cm), and
68% a substantially increased waist circumference (≥ 102 cm). 97% experienced any
reduction in waist circumference, 86% lost
≥ 5 cm, 46% ≥ 10 cm and 7% ≥ 15 cm.
Conclusions Almost all hypogonadal men
are overweight and the majority are obese.
Normalising serum testosterone produced
loss of weight, waist circumference and
BMI. These improvements were progressive
over the full 5 years of the study.
P128
Side Effect Profile of Long-term
Treatment of Elderly Hypogonadal
Men with Testosterone Undecanoate
A. Haider1, F. Saad2, 3
Private Urology Practice, Bremerhaven; 2Global
Medical Affairs Andrology, Bayer Pharma AG, Berlin;,
Germany; 3Gulf Medical University School of Medicine,
Research Department, Ajman, UAE
1
Introduction Testosterone therapy for hypogonadal men has been used for decades.
However, there are still concerns regarding
the safety of this treatment, particularly in
elderly men.
Methods Prospective registry study of 255
men (mean age 60.6 ± 8.0 years), with testosterone levels between ≤ 3.5 ng/ml. They
received parenteral testosterone undecanoate
1000 mg at day 1, week 6 and every 12
weeks thereafter for up to 66 months.
Results After 60 months the following
changes were observed:
Erythropoiesis: haemoglobin increased from
14.44 ± 0.72 to 14.99 ± 0.45 g/dl (p < 0.0001
vs baseline). Haematocrit increased from
43.22 ± 2.84 to 48.78 ± 1.7% (p < 0.0001 vs
baseline). Four patients had haematocrit levels > 52% which resolved without intervention.
Prostate: PSA increased from 1.77 ± 0.96 to
1.82 ± 0.96 ng/ml (p < 0.0001 vs baseline)
with a plateau after 24 months. Prostate volume increased from 28.51 ± 11.2 to 30.23 ±
12.4 ml (p < 0.0001 vs baseline). 3/255 patients were diagnosed with prostate cancer
following elevated PSA (< 4 ng/mL) at 18
weeks of treatment. Tumor grade was T2 in
all three and Gleason score 3+3 in 2 and 3+2
in 1 patient, resp. They all underwent radical
prostatectomy. The proportion was 1.18%
with an incidence of 30.334 per 10.000 patient years. For comparison: in the PLCO
trial with a 7-year follow-up, the proportion
of prostate cancer was 7.35% with an incidence of 116 per 10.000 patient years [1], in
the ERSPC trial with a follow-up of 11 years,
96.6 [2]. – The International Prostate Symptom score (IPSS) improved from 6.73 ± 4.21
to 2.83 ± 1.25 (p < 0.0001).
Liver enzymes: aspartate transaminase (AST)
decreased from 43.05 ± 17.29 to 20.16 ±
3.21 U/L (p < 0.0001 vs baseline) reaching a
plateau after 24 months, alanine transaminase (ALT) from 43.89 ± 18.11 to 20.54 ±
3.92 U/L (p < 0.0001 vs baseline) with a plateau after 36 months.
Conclusions The incidence of 3/255 patients
with prostate cancer does not suggest an increased risk of prostate cancer in elderly men
on long-term testosterone treatment. Longterm treatment with testosterone undecanoate
with monitoring according to the guidelines
is acceptably safe.
References:
1. Andriole G et al. New Engl J Med 2009; 360:
1310–9.
2. Schröder F et al. New Engl J Med 2012; 366:
981–90.
P129
“Late onset hypogonadism” is not
an Isolated Condition – Comorbidities in Elderly Hypogonadal Men
Presenting or Referred to Urological Institutions in Germany
A. Haider1, A. Yassin2, 3, 4, F. Saad5, 6
Private Urology Practice, Bremerhaven; 2Institute of
Urology and Andrology, Segeberger Kliniken, Norderstedt, Germany; 3Urology, Gulf Medical University
School of Medicine, Ajman, UAE; 4Dresden International University; 5Global Medical Affairs Andrology,
Bayer Pharma AG, Berlin, Germany; 6Research Department, Gulf Medical University School of Medicine, Ajman, UAE
1
Introduction Serum testosterone declines
with aging, not primarily determined by calendar age per se but rather by factors impairing the health of aging men, such as obesity,
metabolic syndrome, diabetes mellitus and
other diseases. We determined concurrent
diseases in two cohorts of mainly elderly
men with so-called late onset hypogonadism
(“LOH”).
Methods In 2 separate cumulative registry
studies following identical protocols, 2 cohorts of 516 mainly elderly men were analyzed for concurrent diseases. Cohort A (Dr.
Haider, Bremerhaven, Germany) consisted
J Reproduktionsmed Endokrinol 2012; 9 (5)
405
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
of 255 men, cohort B (Dr. Yassin, Norderstedt, Germany) of 261 men. These men had
either sought urological consultation or had
been referred by other disciplines because of
suspected hypogonadism. All men received
treatment with injections of long-acting testosterone undecanoate.
Results The following comorbidities were
encountered:
– Cardiology: hypertension: A: 40%, B:
45% ; coronary artery disease: A: 16%, B:
13%; condition post myocardial infarction: A 15%
– Internal Medicine: Diabetes mellitus: A:
31%, B: 26%; dyslipidemia: A: 18%, B:
33%.
– Gastroenterology: inflammatory bowel
disease: A: 16%
– Urology: chronic prostatitis: A: 38%, B:
11%
– Dermatology: psoriasis: A: 5%
– Endocrinology: Klinefelter’s syndrome:
A: 9%, B: 2%.
In addition, there were a total of 14 patients
with a history of maldescensus testis and 19
patients with a history of unilateral or bilateral orchiectomy following testicular cancer.
Orthopedics: osteoporosis: A: 14%, B: 6%.
Conclusions
1. The majority of middle-aged to elderly
patients with hypogonadism have one or
more comorbidities. For adequate treatment,
hypogonadal men should be examined for
concurrent diseases. Testosterone administration may be a significant element in their
treatment.
2. With progression of their age elderly men
will suffer increasingly from ailments and
hypogonadism may be an element, so far not
often diagnosed. Testosterone treatment may
contribute to a better quality treatment.
3. 60/516 men had conditions which cannot
be categorized as “LOH”. Klinefelter’s syndrome may still have been undiagnosed, and
a history of maldescensus testis may be unknown. The term “LOH” should be used
with caution, and the general term “hypogonadism” may be preferable.
P130
The Pharmacodynamics of Enclomiphene citrate (Androxal®) in
Men with Secondary Hypogonadism Indicates that it Acts as a Restorative Therapy Rather than as a
Replacement Therapy
R. Wiehle, G. Fontenot, M. Rosner , J. Podolski
Research & Development, Repros Therapeutics, The
Woodlands (TX), USA
Objective To determine the pharmacody-
namics (PD) of serum total testosterone (TT)
and luteinizing hormone (LH) after daily
oral enclomiphene citrate (Androxal®) in
comparison to topical testosterone in men
with secondary hypogonadism.
Methods & Subjects A randomized, single
blind, two-centre phase II study evaluating
Androxal® and AndroGel over 24-hours. 60
406
J Reproduktionsmed Endokrinol 2012; 9 (5)
men were screened, 48 were admitted and 44
completed both PD arms. All subjects had TT
< 350 ng/dL and low-to-normal LH (< 12 IU/
L). Serum samples were taken every hour for
24hrs after 6.25 mg, 12.5 mg and 25 mg
Androxal® or AndroGel. TT and LH was determined in a naïve population following a
single oral capsule of one of three Androxal®
doses or AndroGel (PD part 1) and after 6
weeks of continuous daily oral or topical
treatment (PD part 2). The pharmacokinetic
profile of Androxal® was also determined.
Hormonal profiles were also assessed one
week after treatment discontinuation.
Results Both treatments were effective after
a single dose with AndroGel generating
slightly higher TT levels initially. After 6
weeks of continuous use, the mean concentration of TT at time 0, C0hr was 604 + 160 ng/dL
for men taking the 25 mg dose of Androxal®
and 500 + 278 ng/dL for those men treated
with AndroGel. These values were higher
than baseline but not different from each other.
All three doses of Androxal increased C0hr,
Cavg, Cmax, Cmin and Crange for TT. The pattern
of TT over the 24-hour-period following 6
weeks was best described as a non-linear
function with a mid-day trough and rising
night-time level. Androxal was associated
with elevations of LH, FSH with no effects
on most other hormones, apart from TT.
AndroGel decreased LH, FSH and was more
inter- and intra-subject variability in TT elevation.
Conclusions The effects of Androxal® on
TT appeared to occur in parallel with increases in LH independent of the peak of drug
in the serum. We interpret this as a normalization of the mechanism by which LH brings
about production of TT rather than an acute
effect of drug. Indeed, TT, LH, and FSH all
reached and/or were maintained in the normal range. The overall endocrine profile indicates that Androxal acts through a tonic
stimulus of LH; as a result there is a restoration of gonadotropin activity consistent with
normalization of TT, LH and FSH. This normalization or restoration persists for at least
one week after drug treatment stops. This
process is different from testosterone replacement seen with existing products and
represents a new way to relieve low TT in
men with a sluggish but intact hypothalamus-pituitary-testicular axis.
P131
Testosterone and Cardiovascular
Risk in Patients with Erectile Dysfunction
G. Rastrelli1, G. Corona1, 2, G. Balercia3, A. Sforza2,
G. Forti1, M. Maggi1
1Clinical Physiopathology, University of Florence;
2Maggiore Hospital, Bologna; 3Marche Polytechnic
Univesity, Ancona, Italy
Introduction The relationship between cardiovascular (CV) diseases (CVD) and testosterone (T) levels in men has not been completely clarified. The aim of the study is to
evaluate the association between T levels
and CV risk in subjects with erectile dys-
function (ED) and to verify whether their
body mass index might (BMI) represents a
possible confounder in testosterone-related
CV stratification.
Methods A consecutive series of 2269 male
patients attending the Outpatient Clinic for
ED was studied. The assessment of CV risk
was evaluated using the engine derived from
the Progetto Cuore study.
Results After adjustment and for BMI and
associated morbidities, sex hormone binding
globulin bound (SHBG) and unbound T levels decreased as a function of CV risk assessed thorough Progetto Cuore risk engine.
In addition, a higher prevalence of hypogonadism related symptoms and signs were associated with a higher CV risk. Among factors included in the Progetto Cuore risk engine age, total and HDL cholesterol and diabetes were all significantly associated with
CV risk-dependent modification of total and
calculated free-T levels. When the relationship between SHBG bound and unbound testosterone and CV risk was evaluated as a
function of obesity (BMI > 30 kg/m2), all the
aforementioned associations were confirmed
only in non-obese patients.
Conclusions Hypogonadism could be associated either with an increased or reduced
CV risk, depending on the characteristics of
subjects. Low T observed in obese patients
might represent the result of higher CV risk
rather than a direct pathogenetic mechanism.
P132
Investigation on Psychological
Symptoms Improves ANDROTEST
Accuracy in Predicting Hypogonadism in Subjects with Sexual
Dysfunction
G. Rastrelli1, G. Corona1, 2, E. Bandini1, C. Strada3,
E. Maseroli1, V. Ricca3, C. Faravelli3, E. Mannucci3,
M. Maggi1
1Clinical Physiopathology, University of Florence;
2Maggiore Hospital, Bologna; 3University of Florence,
Italy
Introduction The role of psychological symp-
toms in recognizing late-onset hypogonadism (LOH) is still controversial. The aim of
the study is to evaluate the association between LOH and specific psychological symptoms and to verify whether investigating intra-psychic domain improves the accuracy of
a validated case-history tool (ANDROTEST)
in detecting LOH.
Methods A consecutive series of 1009 subjects (mean age 49.23 ± 13.34) consulting
for sexual dysfunction was studied. Intrapsychic symptoms were investigated by
Middlesex Hospital Questionnaire (MHQ), a
self-reported questionnaire for screening of
mental disorders.
Results A minimum set of 2 MHQ items
was identified through iterative ROC curve
analysis, with assessment of sensitivity and
specificity for hypogonadism (calculated
free testosterone < 0.225 nmol/L) in an exploratory sample of 462 patients. Sensitivity
and specificity were verified in a validation
sample of 547 subjects, in which the final 2item version showed an accuracy of 58.4 ±
3.2% in detecting hypogonadism. The combination of the 2-item score with ANDROTEST
increased the accuracy in predicting hypogonadism (0.741 ± 0.029; p < 0.0001), when
compared to ANDROTEST (0.696 ± 0.018;
p < 0.0001) and the 2-item score (p < 0.05)
alone.
Conclusions Combining these two psychological symptoms with a physical scoring
system improves its ability in detecting hypogonadism. The combination of the scores
should be tested in other studies.
P133
Testosterone Supplementation
Improves Adipose Tissue Function
in Animal Model of Metabolic
Syndrome
E. Maneschi1, A. Morelli1, L. Vignozzi1, S. Filippi1,
I. Cellai1, P. Comeglio1, T. Mello2, B. Mazzanti2, A.
Calcagno3, G. B. Vannelli2, R. Vettor3, M. Maggi1
1Department of Clinical Physiopathology, Sexual
Medicine and Andrology Unit, University of Florence;
2
University of Florence; 3University of Padua, Italy
Introduction We recently demonstrated that
testosterone (T) dosing was able to ameliorate the metabolic profile and to reduce visceral adipose tissue (VAT) accumulation in a
high-fat diet (HFD)-induced rabbit model of
metabolic syndrome (MetS). We observed
negative relationship between T plasma levels and VAT weight. We studied the effects
of HFD and in vivo T dosing on adipose tissue function, and on the adipogenic capacity
of precursor cells (rabbit preadipocytes,
rPAD) isolated from VAT of the following
rabbit groups: regular diet (rPAD-RD), HFD
(rPAD-HFD) and T-treated HFD (rPAD-T).
Methods VAT of the all rabbit groups was
studied by histomorphometric, Western blot
and RT-PCR analysis. Isolated rPAD were
exposed to adipocyte differentiating mixture
(DIM) and adipogenic potential was evaluated by: quantitative analysis of triglyceride
content (adipored assay), expression of adipocyte-specific genes, insulin-stimulated
glucose uptake and GLUT4 membrane translocation.
Results Adipocyte size was significantly increased in VAT of HFD-rabbits compared to
RD-rabbits, indicating adipocyte dysfunction, which was normalized by T dosing.
Accordingly, we observed that perilipin, an
antilipolytic protein, was significantly increased in HFD-rabbits when compared to
all other groups. In VAT, androgen receptor
expression was positively associated with
expression of genes related to insulin signalling: GLUT4 (insulin-regulated glucose transporter) and STAMP2 (androgen-dependent,
as seen in androgen-regulated prostate cells,
and required for normal insulin signaling).
Interestingly, STAMP2 mRNA expression
in VAT of T-treated HFD rabbits was significantly increased, when compared to all
other groups. Moreover, GLUT4 membrane
translocation was significantly reduced in
VAT from HFD-rabbits, as compared to RDrabbits, which was increased in T-treated
HFD rabbits. In rPAD-HFD, the capacity to
accumulate triglyceride, when exposed to
DIM, was reduced (66% over untreated
cells) in comparison with rPAD-RD (534%).
Moreover, glucose uptake ability and GLUT4
membrane translocation was also reduced in
rPAD-HFD. Interestingly, DIM-exposed
rPAD-T showed a triglyceride accumulation
capacity (262%), a glucose uptake ability
and GLUT4 membrane translocation comparable to that of rPAD-RD. These findings
were confirmed in terms of mRNA expression of adipocyte-specific genes, which were
significantly induced by DIM in rPAD-RD
and -T, but not in rPAD-HFD.
Conclusion Our results indicate that T
supplementation in MetS animal model may
positively affect adipose tissue functions.
This could reflect the ability of T in counteracting metabolic alterations, most likely restoring insulin sensitivity in experimental
MetS.
P134
Is Psychological Stress Associated
with Reduced semen quality? – A
Cross-Sectional Study among 949
Healthy Young Danish Men
L. Nordkap, N. Joergensen, T. Kold Jensen
Department of Growth and Reproduction,
Rigshospitalet, Copenhagen, Denmark
Introduction Chronic stress is a very common condition and approximately 10% of
Danish men report high or very high levels
of subjective stress. Furthermore, more than
40% of young Danish men have sperm counts
at a level that may indicate a prolonged waiting time to pregnancy.
Evidence from animal studies indicates that
psychological stress might impair testicular
function. Additionally, some epidemiological studies have described a negative association between self-reported stress or “stressful life events” and impaired semen quality.
However, most studies have been conducted
in infertile men, which makes it difficult to
draw any firm conclusion due to potential
inverse causation.
From an ongoing study of young Danish
men from the general population (i. e. not
selected due fertility status) we have obtained information on self-reported stress
from 949 consecutively investigated men
besides information of semen quality and reproductive hormones. The preliminary results are reported here.
Material & Methods 949 men (age 18–20
years) were included in this study. They
were consecutively investigated from April
2008 to December 2011. All men completed
a questionnaire, and delivered a semen
sample assessed for volume, sperm concentration, total sperm count, and percent morphologically normal spermatozoa.
The men responded to four standardized
questions about perceived stress during the
past 4 weeks: “How often have you had
problems relaxing, been irritable, tense or
stressed?” The answer categories were; all
the time (scoring 100%), large part of the
time (scoring 67%), rarely (scoring 33%) or
never (scoring 0%). A summarized stress
score was calculated as the mean score of the
four questions. Based on this, an individual
stress level was calculated as low, moderate
or high.
Preliminary Results & Statistics In total
296 (31%) reported low stress, 389 (41%)
moderate and 264 (28%) high stress. The
mean number of morphologically normal
spermatozoa were 8.0%, 7.5% and 7.1% in
the 3 groups, respectively (p = 0.02, stress
score entered as a continuous variable in regression model). A tendency towards lower
total sperm count and sperm concentration
was seen in the high stress group (p = 0.08
and 0.04, respectively) in comparison to the
low and moderate stress groups.
Preliminary Conclusion This study suggests a negative association between self-reported psychological stress and semen quality. The findings were most pronounced for
morphology and less for sperm concentration and total sperm counts when results
were analyzed using the stress score as a continuous variable. When stratified according
to stress categories, the association between
stress and the semen variables were strongest
for the high stressed group vs. the lower
stressed. Further analyses of our data are
needed before a final conclusion can be
reached.
P135
Comparative Efficacy of the
Anastrasol for the Treatment of
Idiopathic Infertility in Men with
Normal BMI and Obesity
O. Tazhetdinov1, S. Gamidov1, R. Ovchinnikov2,
A. Popova2
1Urology, Russian National Research Medical University; 2Scientific Centre of Obstetrics, Gynecology and
Perinatology, Andrology, Moscow, Russian Federation
Background Aromatase is the enzyme that
converts testosterone to estradiol in the tissues. Anastrasol is one of the drugs used for
inhibition of this enzyme. The aim of our
study was to evaluate effectiveness of
anastrasol for the treatment of infertile men
with obesity and normal BMI.
Methods Data from 60 men with idiopathic
infertility at a mean age of 33.2 years were
combined. In the group 1 were included 30
men with obesity, in the group 2–30 men
with normal BMI. They were managed with
Anastrasol 1 mg once a day during 3 months.
Analysis of complaints, history of the disease, physical examination, sperm analysis
and laboratory investigations were performed. After treatment the sperm analysis
and hormones level were investigated.
Results
Group 1: Mean level of estradiol decreased
from 108.4 ± 4.2 till 72.3 ± 3.3 pg/ml (–33.3%),
mean level of testosterone increased from
J Reproduktionsmed Endokrinol 2012; 9 (5)
407
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
12.8 ± 0.6 till 21.9 ± 0.6 nmol/l (+70.7%),
mean level of LH increased from 3.1 ± 0.3
till 5.3 ± 0.2 mEd/ml (+71.8%), mean level
of FSH increased from 4.6 ± 0.6 till 7.4 ±
0.4 mEd/ml (+60.9%); the concentration of
spermatozoa increased from 16.7 ± 4.3 till
30.1 ± 5.2 mln/ml, sperm motility (category
A) increased from 13.1 ± 0.7 till 23.0 ±
0.9%, sperm motility (category B) increased
from 16.7 ± 1.2 till 28.4 ± 0.8%, mean count
of the normal forms of spermatozoa increased
from 15.7 ± 1.4 to 24.8 ± 1.5%. All the differences were statistically significant.
Group 2: Mean level of estradiol decreased
from 89.0 ± 6.2 till 70.3 ± 3.7 pg/ml (–21.0%),
mean level of testosterone increased from
17.9 ± 1.3 till 21.8 ± 0.8 nmol/l (+21.8%),
mean level of LH increased from 4.7 ± 0.2
till 5.5 ± 0.3 mEd/ml (+17.0%), mean level
of FSH increased from 5.4 ± 0.5 till 6.3 ±
0.4 mEd/ml (+16.7%); the concentration of
spermatozoa increased on 16.5%, sperm motility (category A) increased on 14.0%, sperm
motility (category B) increased on 15.9%,
mean count of the normal forms of spermatozoa increased on 13.1%.
Conclusion The inhibitors of aromatase more
effective in men with idiopathic infertility
and obesity. Positive effect may be explained
by their influence on hormonal profile, decreasing the aromatization of testosterone in
the visceral obesity tissue. Because of a small
number of the patients further investigations
are needed.
P136
Anti-Inflammatory Effect of Androgen Receptor Activation in Human
BPH Cells
L. Vignozzi1, I. Cellai1, A. Morelli1, L. Lombardelli1,
R. Santi2, P. Comeglio1, S. Filippi1, G. Nesi2, M. Gacci3,
L. Adorini4, M.-P. Piccinni1, M. MAggi1
1Clinical Physiopathology, University of Florence,
2
Department of Anatomy, Histology and Forensic
Medicine, Florence; 3Urology, University of Florence,
Italy; 4Intercept Pharmaceuticals Italia Srl; New York,
USA
Progression of benign prostatic hyperplasia
(BPH) involves chronic inflammation and
immune dysregulation. A loss of self tolerance, due to expansion of Th17 cells and
overexpression of IL-17, which stimulates
prostatic stromal cells to produce the potent
growth factors (IL-8 and IL-6), is crucial in
BPH development, linking a self-perpetuating autoimmune response to hyperplastic
growth.
Preclinical studies have demonstrated that
prostate inflammation and tissue remodeling
are exacerbated by hypogonadism and prevented by testosterone (T) supplementation.
We investigated whether, in humans, hypogonadism was associated with more severe
BPH inflammation and thein vitroeffect of
the selective androgen receptor (AR) agonist
dihydrotestosterone (DHT) on cultures of
stromal cells derived from BPH patients
(hBPH). Histological analysis of inflammatory infiltrates in prostatectomy specimens
408
J Reproduktionsmed Endokrinol 2012; 9 (5)
from a cohort of BPH patients, and correlation with serum T level was performed.
Histopathological examination of BPH specimens demonstrated the presence of prostatic inflammation in all cases. The inflammatory score
(IS) was higher in hypogonadal (T ≤ 8 nM)
as compared to eugonadal (T > 8 nM) patients (p < 0.01). Accordingly, hypogonadism increased the risk of prostate inflammation by a factor of 5, even after adjusting for
age and BMI (HR = 5.7 [1.1–29.4], p < 0.05).
In an age- and BMI-adjusted model, among
the different factors composing the IS, the
inflammatory infiltrate grade showed a significant, negative association with testosterone levels (adj. r = –0.35, p = 0.03).
Triggering hBPH cells by inflammatory
stimuli (TNFα, LPS or CD4+ T cells) induced abundant secretion of several inflammatory and growth factors (IL-8, IL-6,
bFGF). Co-colture of CD4+ T cells with irradiated hBPH cells induced secretion of Th1inducer (IL-12), Th1-recruiting chemokine
(IP-10) and Th2- (IL-9) and Th17- (IL-17)
specific cytokines. Pretreatment with DHT
inhibited NF-κB activation and suppressed
secretion of several inflammatory/growth
factors-with the most pronounced effects on
IL-8, IL-6 and bFGF. Reduced inflammatory
cytokines production by T cells, an increase
in IL-10 and a significant reduction of T cells
proliferation suggested that DHT exerted a
broad anti-inflammatory effect on T cells. In
conclusion, DHT exerts an immune-regulatory role on human prostatic stromal cells,
inhibiting their potential to actively induce
and/or sustain autoimmune and inflammatory responses.
P137
Is Metabolic Syndrome a Useless
Category in Subjects with High
Cardiovascular Risk? – Results
from a Cohort Study in Men with
Erectile Dysfunction
G. Corona1, M. Monami2, G. Rastrelli1, A. Sforza3,
G. Forti4, E. Mannucci2, M. Maggi1
1
Sexual Medicine and Andrology Unit, Department of
Clinical Physiopathology; 2Diabetes Section Geriatric
Unit, Department of Critical Care, University of Florence; 3Endocrinology Unit, Azienda Usl Bologna,
Medical Department, Bologna; 4Endocrinology Unit,
Department of Clinical Physiopathology, University of
Florence, Italy
Question Although several studies have
demonstrated that MetS is associated with a
two-fold increase in the risk of cardiovascular
(CV) diseases, this risk does not appear to be
greater than the sum of risks associated with
each of its individual components. To determine the association of men with ED and individual components of MetS and their subsequent relationship to cardiovascular (CV)
risk, and, more specifically whether the sum
of the MetS components is greater than the
individual components in predicting CV risk.
Methods We longitudinally studied a consecutive series of 1687 (mean age 52.9 ±
12.8; range 17–88 years) patients attending
our clinic for ED and evaluated different
clinical and biochemical parameters. Information on MACE was obtained through the
City of Florence Registry Office.
Results 139 MACE, 15 of which were fatal,
occurred during a mean follow-up of 4.3 ±
2.6 years. Subjects with MetS at baseline
showed a higher incidence of MACE (HR =
1.77), after adjusting for age, however, the
association disappeared in an alternative
Cox model, adjusting both for age and for
individual MetS components (HR = 1.525
[0.564–4.123]; p = 0.408). The 2 most predictive MetS components of CV risk were
low HDL cholesterol and high triglycerides.
Exploring possible interactions between individual components of MetS and their effect on CV risk using two alternative approaches indicates that the effect of MetS
components on CV risk is additive, but not
synergistic. Among subjects with hypertension, after adjusting for age, elevated glycaemia and low HDL-cholesterol confer relevant additional risk, while in subjects with
high triglycerides, hyperglycaemia increased
the risk of incident MACE.
Conclusions With regards to CV risk, the
MetS construct seems to add little or nothing
to the careful assessment of its components.
Thus, there is no reason to recommend the
use of MetS as a diagnostic category in patients with ED.
P138
Fat Boosts, while Androgen Receptor Activation Counteracts,
BPH-associated Prostate Inflammation
L. Vignozzi1, M. Gacci2, I. Cellai1, R. SAnti3, G. Corona4,
A. Morelli1, G. Rastrelli1, P. Comeglio1, G. Nesi3,
C. de Nunzio5, A. Tubaro5, M. Maggi1
1Clinical Physiopathology; 2Urology; 3Human Pathology
and Oncology, University of Florence; 4MaggioreBellaria Hospital, Endocrinology Unit, Bologna;
5
Urology, University of Rome, Italy
Metabolic syndrome (MetS) and benign prostate hyperplasia (BPH) are often comorbid.
Chronic inflammation has been proposed as
a putative link between the 2 conditions, as it
is a determinant factor for BPH development
and progression. This study was aimed at
evaluating whether MetS is associated with
BPH-related inflammation and at investigating thein vitroeffect of oxidized low-density
lipoprotein (oxLDL) – the most relevant
autoantigen described in dyslipidaemia – on
cultures of stromal cells, derived from BPH
patients (hBPH).
In a multi-centre cohort of BPH patients
(n = 244), inflammatory infiltrates in prostatectomy specimens showed a step-wise association with the number of MetS factors
(p = 0.001). After adjusting for age, reduced
HDL cholesterol and elevated triglycerides
were the only factors significantly associated
with inflammatory score (IS). In the subset
of patients in whom testosterone (T) evaluation was available (n = 92), increased IS was
also significantly associated with hypogo-
7th ECA-Congress – Abstracts
P139
Waist Circumference and Metabolic syndrome in Relation to Semen Quality and Serum Reproductive Hormone Levels among
Estonian Fertile Men
K. Ehala-Aleksejev, K. Pomm, M. Punab
Andrology, Clinicum of Tartu University, Tallinn, Estonia
Introduction Body mass index (BMI) as a
surrogate measure of body fat is the standard
system for classifying obesity at a population
level. It has been suggested that BMI, especially above 30, is associated with subfertility
in men. At the same time validity of BMI to
distinguish variability in body composition
and body fat distribution, have been questioned [1]. In our study we employed more
accurate surrogate measure of adiposity such
as waist circumference (WC) to evaluate
whether overweight and obesity are related to
changes in semen quality and serum sex hormone concentrations. Futhermore, we investigated whether metabolic syndrome (MS) is
associated with male reproductive parameters.
Methods During 2010 and 2011 male partners of pregnant women were invited to participate in this study. A total of 281 men
were divided into 3 groups according to their
WC: < 94 cm, 94–102 cm, ≥ 102 cm. Semen
was collected by masturbation and sperm
parameters were analyzed according to
WHO criteria. Patient height, weight, WC
and blood pressure were recorded. Body
composition was determined using TANITA
Corporation (TBF-300MA). Blood samples
were collected for sex hormones and biochemical markers. MS was defined using the
joint statement from a number of professional
organizations [2]. Statistical analysis was
done using STADA statistical software. Statistical significance was defined as p < 0.05.
Table 15. K. Ehala-Aleksejev et al. Clinical Findings of the Fertile Estonian Men.
Parameters
Mean ± SD
Median
Age (years)
Height (cm)
Weight (kg)
BMI
Testicular volume (ml)a
Genital and chronic diseases
– Varicocele, (n%)
– Cryptorchidism, n (%)
– Cryptorchidism operated, n (%)
– Testicular cancer operated, n (%)
– Chlamydia trachomatis, n (%)
– Ureaplasma urealyticum, n (%)
– HIV, n (%)b
– Diabetes, n (%)
– Hypertension, n (%)
– Hypothyreosis, n (%)
32 (6.7)
181 (6.2)
83.5 (13.2)
25.6 (3.8)
23.52 (4.8)
31
181
82
25
23.3
a
b
ECA – Abstracts
nadism. In an age- and T-adjusted model,
dyslipidaemia was still associated with IS. In
addition, prostatic volume and the anteriorposterior (AP) diameter were positively associated with the number of MetS components. At logistic regression analysis, among
MetS determinants, only dyslipidaemia (increased serum triglycerides and reduced serum HDL levels) was significantly associated with an increased risk of having a prostatic volume > 60 cm3 (HR = 3.268, CI:
1.810–5.901, p < 0.001).
Triggering hBPH cells by oxLDL induced a
huge secretion of proinflammatory factors
promoting BPH cell growth, such as IL-8,
IL-6, bFGF, and a significant increase of IL7, together with a decrease of the anti-inflammatory cytokines IL-10 and IL-1RA.
DHT markedly suppresses the oxLDL-induced IL-8 secretion and the expression of
oxLDL receptor (LOX-1). In conclusion,
fats could have a detrimental effect on prostate health, boosting prostate inflammation,
a key factor in the development and progression of BPH/LUTS. Conversely, beneficial
effects of DHT in counteracting lipid-induced IL-8 secretion, make testosterone
more a friend than a foe of the prostate.
71 (25)
2 (0.7)
3 (1)
2 (0.7)
4 (1.4)
11 (3.9)
1 (0.4)
1 (0.4)
16 (5.7)
1 (0.4)
Mean of left and right testis, measured by use of Prader’s orchidometer
Patient is on the antiviral treatment
Results The mean age of the 281 men was
32 years. Clinical findings are shown in
Table 15. There was a strong inverse relation between WC and total testosterone levels. Men with WC ≥ 102 cm had lower total
sperm count than did men with a WC < 94
cm. WC was not related to estradiol, FSH
and LH levels nor to sperm volume, concentration, motility or morphology. Men with
MS had lower total testosterone levels. MS
was unrelated to sperm parameters.
Conclusions Our preliminary results suggest that visceral adiposity (as assessed by
increased WC above 94 cm) alone and as a
component of the metabolic syndrome, is
specifically associated with lower testosterone levels. Men with WC ≥ 102 cm are also
increased risk of lower total sperm count.
References:
1. MacDonald AA, et al. The impact of body
mass index on semen parameters and reproductive hormones in human males. Hum Rep Update
2010; 16: 293–311.
2. Alberti KGM, et al. Harmonizing the metabolic syndrome: a joint interim statement of the
IDF Task Force on Epidemiology and Prevention. Circulation 2009; 120: 1640–5.
P140
Mechanism of Action of Phosphodiesterase Type 5 Inhibition in
Metabolic-syndrome-associated
Prostate Alterations: An Experimental Study
L. Vignozzi1, A. Morelli1, P. Comeglio1, S. Filippi1,
E. Sarchielli2, E. Maneschi1, I. Cellai1, M. Gacci3,
G. B. Vannelli2, A. Lenzi4, M. Maggi1
1Clinical Physiopathology; 2Histology and Forensic
Medicine, Anatomy; 3Urology, University of Florence,
Italy; 4Department of Experimental Medicine, Section
of Medical Pathophysiology and Endocrinology,
Sapienza University of Rome, Italy
Background Phosphodiesterase type 5 (PDE5)
inhibitors improve benign prostatic hyperplasia (BPH)-related lower urinary tract symptoms (LUTS), often associated with metabolic
syndrome (MetS). This study investigated the
effects of PDE5 inhibition in the prostate of a
MetS rabbit model, obtained by high fat diet
(HFD) for 12 weeks. HFD-rabbits recapitulate human MetS (glucose intolerance, dyslipidemia, increased abdominal adiposity and
hypertension) and develop hypogonadism
and LUT abnormalities (prostate and bladder
inflammation/ tissue remodelling).
Methods Gene expression was analyzed by
quantitative RT-PCR. Morphological changes,
inflammation and oxygenation of rabbit
prostate were evaluated by immunohistochemistry.
Results HFD prostates showed increased
PDE5 expression, suggesting a peculiar sensitivity of prostate to the action of PDE5 inhibitors during MetS. Accordingly, prostate
PDE5 mRNA was negatively associated to
plasma testosterone/estradiol ratio, whose reduction characterizes MetS, and positively
with the expression in prostate of several
genes exploring BPH/LUTS pathogenetic
processes, such as inflammation, leukocyte
infiltration and fibrosis/myofibroblast activation. Most of these genes was up-regulated by
HFD, and significantly reduced by PDE5 inhibition, through either chronic (12-weeks)
or, at a lower extent, acute (1-week) tadalafil
dosing. Tadalafil was also able to reduce
blood pressure and visceral fat in HFD rabbits, without changing any other MetS parameter. Interestingly, 1-week tadalafil administration to HFD rabbits, significantly blunted
prostate inflammation (increased CD45
immunopositivity), fibrosis (reduced muscle/
fiber ratio) and hypo-oxygenation, thus suggesting a potential curative effect of PDE5 inhibition on MetS-related prostate alterations.
Conclusions Our data demonstrate that
PDE5 inhibition in an animal model of HFDinduced MetS may act at multiple levels in
counteracting prostate tissue derangements,
thus adding new insights into the comprehension of their mechanism of action in alleviating LUTS and supporting the multiple
potentiality of this class of drugs as a useful
therapeutic tool in MetS patients.
J Reproduktionsmed Endokrinol 2012; 9 (5)
409
7th ECA-Congress – Abstracts
ECA – Abstracts
P141
Sperm Characteristics in an Animal
Model of Metabolic Syndrome
S. Marchiani, A. La Barbera, S. Filippi, L. Vignozzi,
G. Forti, M. Maggi, E. Baldi
Department of Clinical Physiopathology, University of
Florence, Italy
Introduction Metabolic syndrome (MetS)
represents an important epidemiologic entity
that potentially affects many aspects of human physiology. Recently an association between MetS and hypogonadotropic hypogonadism (hypo-hypo) possibly leading to male
infertility was observed. To study the relationship between MetS and male infertility
we used an animal model of male rabbits, fed
with high fat diet (HFD) [Filippi et al.,
2009], which showed the main characteristics of MetS and hypo-hypo. We evaluated
several sperm parameters after sacrifice of
these animals.
Material & Methods The groups of animals
analyzed were: (1) control (fed by a regular
diet); (2) HFD; (3) HFD+Testosterone (T);
(4) HFD+Tamoxifen (Tam). As control, a
group of animals was treated with GnRH
analog, to simulate hypo-hypo induced by
castration. Spermatozoa were extracted from
epidydimis to evaluate number, morphology
(by Diff-Quick staining), motility (by computer system analyzer [CASA] and microscopy), DNA fragmentation (SDF) (by TUNEL
assay [Muratori et al., 2008]) and acrosome
reaction (AR) induced by progesterone (P)
(by lectin staining).
Results Sperm number and motility were
decreased in HFD rabbits (number: mean ±
sd = 38.3 ± 29.9; motility: mean ± sd = 36 ±
16.9) respect to control (number: mean ± sd =
71.3 ± 65.9; motility: mean ± sd = 76 ± 9.8;
p = 0.01). CASA motility parameters were
modified towards an early hyperactivated
motility state, showing decrease of VAP,
VSL, STR, LIN and increase of VCL and
ALH. Treatment with T restored motility to
control levels. The supplementation of Tam
further reduced the sperm number (mean ±
sd = 18.3 ± 6.1), increased the percentage of
non-progressive motility (mean ± sd = 64 ±
2.8; p = 0.02) and augmented the shift to
hyperactivation. Moreover, in HFD + Tam
group, a significant increase of coiled tail
sperm, consistent with exposure to a hyposmotic epididymal fluid, was observed. Rabbits treated with GnRH analog showed no
alterations in sperm number or motility. Preliminary results demonstrated an increase of
spontaneous AR and lack of response to P in
HFD + Tam and GnRH-treated groups. No
differences were observed in percentage of
SDF among the various groups.
Conclusion Our data indicate the occurrence of slight alterations of seminal parameters in our model of MetS, which were restored by treatment with T. Of interest, our
data suggest that treatments with Tam and
GnRH shift epididymal sperm towards a
early hyperactivated and capacitated phenotype possibly altering the timing of the 2 processes.
410
J Reproduktionsmed Endokrinol 2012; 9 (5)
P142
Antioxidant Treatment with
Edaravone or Taurine Ameliorates
Diabetes-induced Testicular Dysfunction in the Rat
F. Dimitriadis1, P. Tsounapi2, M. Saito3, S. Koukos4,
S. Shimizu3, K. Satoh3, A. Takenaka2, N. Sofikitis4
1Urology, Papageorgiou Gen. Hospital, Urology,
Thessaloniki, Greece; 2Urology; 3Department of Pathophysiological and Therapeutic Science Tottori University Faculty of Medicine, Yonago, Japan; 4Ioannina
University School of Medicine, Urology, Ioannina,
Greece
Objectives Diabetes mellitus with the subsequent generation of reactive oxygen species represent a major risk factor for testicular dysfunction (TD). We tried to investigate
whether administration of the antioxidants
edaravone and taurine, could prevent type 1
diabetes-induced TD in the rat.
Materials & Methods 6-week-old male Wistar
rats were divided into four groups. Group A
was treated with citrate-phosphate buffer
plus normal saline, whereas in the other three
groups diabetes was induced by streptozotocin (50mg/kg intraperitonealy). Subsequently,
the diabetic rats were treated for 4 weeks either with normal saline (Group B), edaravone
(10 mg/kg/day, intraperitonealy; Group C)
or taurine (500 mg/kg/day, intraperitonealy;
Group D).
Body, testicular, and epididymal weight, serum glucose, malondialdehyde levels, testicular catalase activity and serum testosterone levels were determined. Histological examination and the Johnsen score were used
to observe and evaluate respectively the
morphological changes in the testes. TUNEL
assay was used to examine DNA fragmentation. Mating studies were performed in order
to evaluate the fertility potential of the male
rats in each group.
Results Edaravone or taurine treatment prevented significantly the decreased body, testicular and epididymal weight induced by
diabetes. Moreover, edaravone or taurine
significantly decreased the diabetes-induced
malondialdehyde levels, the morphological
damage, and the number of apoptotic cells.
Taurine but not edaravone increased significantly the testicular catalase activity. The
antioxidant treatment had no effect on the
fertility potential of the diabetic rats.
Conclusions The morphological damage,
increased lipid peroxidation, and apoptosis
in testicular tissue can be significantly relieved by edaravone or taurine treatment
through suppressing the increased oxidative
stress in the rat testis.
P143
Has Metabolic Syndrome any
Effect on Reproductive Characteristics in Overweight Males?
J. M. Andersen1, O. Witczak1, E. L. Aschim1, H. Herning1,
R. Sandbu2, T. Mala3, J. Hjelmesæth2, T. B. Haugen1
1Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo; 2 Morbid
Obesity Centre, Vestfold Hospital Trust, Tønsberg;
3Centre for Morbid Obesity, Oslo University Hospital,
Oslo, Norway
Introduction Metabolic syndrome (MeS) is
a heterogeneous constellation of abnormalities including overweight, dyslipidaemia,
hypertension, and hyperglycaemia. It is well
known that in combination, these disturbances increase the risk of developing cardiovascular disease and diabetes. The influence of MetS on fertility and especially on
male fertility, is less well explored. The aim
of this study was to compare reproductive
characteristics in overweight and obese men
with MetS versus subjects without MetS.
Material & Methods 101 men (22–61 years)
with BMI ≥ 25 kg/m2 were investigated. Semen analysis was performed according to
WHO recommendation. Levels of serum lipids (total cholesterol, LDL-cholesterol, HDLcholesterol and triglycerides), micro-CRP,
blood glucose and glycated hemoglobin, testosterone, SHBG and estradiol were measured in fasting blood samples. Blood pressure, waist circumference, percent body fat,
general health status, medication, smoking,
and physical activity were registered. MetS
was defined using the National Cholesterol
Education Program Adult Treatment Panel
III criteria (ATP III). Free androgen index
(FAI) was calculated from total testosterone
and SHBG. Linear regression analysis was
performed to evaluate the differences between men with and without MetS.
Results MetS was present in 63 men (62%).
The group with MetS had significant higher
BMI (median 34.1, range 27.5–62.6) than
the group without MetS (median 29.2, range
25.0–54.2). Men with MetS had significantly
lower testosterone (p = 0.012) as well as
SHBG (p = 0.004) levels, when adjusted for
age. We did not observe any significant difference in estradiol concentration or FAI between the two groups. There were no significant differences between the sperm characteristics investigated (sperm concentration,
total sperm count, vitality, morphology)
when adjusted for age. However, there was a
tendency towards lower total sperm count in
men with MetS. There was also a tendency
towards more abnormalities in spermatozoa
from men with MetS.
Conclusion Our study shows lower levels
of testosterone and SHBG in men with MeS,
and suggests that MetS may be associated
with reduced semen quality. Further studies
are necessary to clarify the effect of metabolic abnormalities on male reproductive
function.
19
Association between UGT2B17
Genotype and Testosterone Substitution Dosages?
A. K. Bang, N. Jørgensen, A. Juul
Department of Growth and Reproduction,
Rigshospitalet, Copenhagen, Denmark
Introduction The excretion of testosterone
glucuronide is partly dependent on the
UGT2B17 genotype and recent studies have
shown that deletion polymorphisms are
strongly associated with significant lower
levels of excreted urinary glucunidated testosterone in men [1–3]. The objective of this
study was to investigate the association of
the UGT2B17 gene polymorphism and the
dosages of testosterone substitution in men
with androgen deficiency. Our hypothesis
was that the men having the UGT2B17 deletion would need lower dosages.
Material & Methods 229 men treated with
Testosterone undecanoate (TU) (Nebido®)
were retrospectively included. All men had
been given 1000 mg TU per injection, with
same intervals. At endocrine follow-ups
blood samples were drawn 2 weeks, 6 weeks
(2nd injection), 18 weeks (3rd injection), 30
weeks (4th injection) and 42 weeks (5th injection) after the initial injection.
Results The men were stratified according
to their carrier status of the UGT2B17 gene.
Thirty-one (13.5 %) had a homozygote deletions (group 1), 103 (45.0 %) were heterozygote (group 2) and 95 (41.5 %) were homozygotes for the wildtype (group 3). At the
3rd injection (18 weeks), testosterone levels
did not differ between the 3 groups in total
(p = 0.065): median 13.2 nmol/l, 12.7 nmol/l
and 14.0 nmol/l in group 1, 2 and 3, respectively. Estradiol levels tended to be higher in
group 1 (66,5 pmol/l) then in the 2 other groups
(ins/del: 54 pmol/l and ins/ins: 52 pmol/l),
though not statistically significant. LH, SHBG,
the free androgen index (FAI), total cholesterol or haemoglobin did not differ between
groups.
At follow-ups 2–3 years after initiation of
treatment all patients had individual treatment regimes, but no association to genotype
was detected.
Conclusion Serum testosterone levels did
not depend on UGT2B17 genotype in hypogonadal men given standard treatment with
TU. Thus, there is no need to consider this
genotype as a marker of dosage or interval
when initiating testosterone treatment.
References:
1. Jakobsson J, Ekström L, Inotsume N, et al.
Large differences in testosterone excretion in
Korean and Swedish men are strongly associated
with a UDP-Glucuronosyl transferase 2B17 polymorphism. J Clin Endocrinol Metab 2006; 91:
687–93.
2. Juul A, Sørensen K, Aksglaede L, et al. A common deletion in the uridine diphoshate gluguronyltransferase (UGT) 2B17 gene is a strong determinant of androgen excretion in healthy pubertal
boys. J Clin Endocrinol Metab 2009; 94: 1005–11.
3. Schulze JJ, Lundmark J, Garle M, et al. Doping
test results dependent on genotype of uridine diphospho-glucuronosyl transferase 2B17, the major enzyme for testosterone glucuronidation. J Clin
Endocrinol Metab 2008; 93: 2500–6.
P145
Expression of Testosterone in
Leydig Cells of Infertile Patients
with Non-Obstructive Azoospermia (NOA)
 Postersession 8: Sexual
Medicine & Non-obstructive Azoospermia
N. Knezevic1, V. Kozina2, A. Vukasovic2, D. Jezek2
1Clinic for Urology; 2Histology and Embryology, University of Zagreb, School of Medicine, Zagreb, Croatia
P144
Use of Ethnicity-specific Sequence
Tag Site Markers for Y-chromosome
Microdeletion Studies in Non-Obstructive Azoopsermic Males
K. Sachdeva
HCG Hospital, Jalandhar, India
Introduction Microdeletions in the azoospermia factor region on the long arm of Y
chromosome are associated with spermatogenic failure. There are many markers for the
diagnosis of Y chromosome microdeletion
analysis, but in routine practice only a limited set of markers can be tested.
Objective The objectives of this study were
to determine the frequency of Y chromosome microdeletion in idiopathic cases of
male infertility in India, to attempt genotypephenotype correlation, and to evaluate
whether markers to be tested for diagnosis of
Y chromosom microdeletion should be
ethnicity specific.
Methods Microdeletions in the Y chromosome were analyzed in 200 infertilemales.
The six sequence tag site (STS) markers prescribed by the European Academy of Andrology (EAA) were used initially. Patients in
whom no deletions were detected by use of
these markers were tested by markers selected from other studies from India.
Results The STS markers prescribed by
EAA detected deletions in only 6 (3%) of
200 infertile males. However, markers selected from previous Indian studies showed
deletions in an additional 15 (7.5%) of infertile males. Overall, Y chromosome microdeletions were observed in 21 (10.5%) of 200
patients. Of these, 13 were cases of azoospermia and 8 were cases of severe oligospermia.
Conclusion The markers prescribed by
EAA alone are not suitable for the diagnosis
of Y chromosome microdeletions in infertile
males. The protocol for identification of Y
chromosome microdeletions in cases of nonobstructive azoospermia/severe oligospermia would have to include a different set of
STS markers.
One of the most severe forms of male infertility is non-obstructive azoospermia (NOA).
NOA is frequently characterized by a heavy
damage of seminiferous tubules. However,
there is a lack of data on changes of Leydig
cells and the expression of testosterone in
situ. Therefore, the aim of the current survey
was to investigate Leydig cells in testicular
biopsies (n = 120) of 2 groups of patients, i.e.
controls and infertile men with NOA. Methods used were qualitative and quantitative
histological analysis and immunohistochemistry. In addition, blood levels of gonadotrophins and testosterone were determined. Results of qualitative histological analysis
demonstrated a kind of “mosaic” picture of
regular and irregular Leydig cells in the NOA
group. In average, there were 35% irregular
Leydig cells and their number correlated
with low testis volume and damaged spermatogenesis. Histological analysis indicated
a significantly lower number of testosteroneproducing cells (p < 0.001) (Fig. 23, 24).
The results of the study pointed out that the
patients with NOA could suffer from a deficit of androgens in situ as well as a premature
andropause.
Figure 23. D. Jezek et al.
Figure 24. D. Jezek et al.
J Reproduktionsmed Endokrinol 2012; 9 (5)
411
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
P146
Circumcision and Male Sexual
health: A Predictive Analysis
J. Dias1, R. Amorim1, R. Freitas2, P. Espiridião1,
L. Xambre1, L. Ferraz1
1Centro Hospitalar V.N. Gaia/Espinho, Vila Nova de
Gaia; 2Instituto Português de Oncologia do Porto,
Porto, Portugal
Introduction Circumcision is a widespread
practice nowadays, although little is known
about its impact on male sexual life.
Question To characterize the sexual life of
the enrolled population and to evaluate possible associations of circumcision with several measures of sexual health.
Methods We conducted telephone surveys
about sexual habits to patients that underwent circumcision (n = 62) and other urological surgical procedures (n = 68) in Centro
Hospitalar V.N. Gaia/Espinho during 2011
(population characterization in Table 16).
Odds ratios (ORs), adjusted in a multivariate
analysis (to age, marital status, diabetes mellitus and chronic medication) explored associations between circumcision and present
sexual dysfunctions.
Results The median age of first sexual intercourse was 17 years old (interquartile
range [IQR] 16–18), the median number of
sexual partners was 4 (IQR 2–8) and the median number of sexual intercourse per month
was 8 (IQR 4.25–12). The presence of a significant organic dysfunction was more common in those circumcised vs uncircumcised
(71% vs 45.5%, adjusted OR [ORadjust] of
2.56, 95%-CI: 1.09–5.99; p = 0.030), particularly delayed orgasm (48.4% vs 12.5%,
ORadjust 4.40, 95%-CI: 1.72–11.24; p = 0.002).
In circumcised patients, the complete satisfaction of sexual needs tends to be lower
(40.3 vs 22.7%, with age-adjusted OR [ORage]
of 2.60, 95%-CI: 1.18–5.75; p = 0.018;
ORadjust 2.16, 95%-CI: 0.88–5.32; p = 0.097)
and erectile dysfunction tends to be more
frequent (25.8% vs 13.6%, ORage of 2.74,
95%-CI: 1.05–7.14; p = 0.040; ORadjust 1.47,
95%-CI: 0.46–4.67; p = 0.516). No significant differences were found regarding sexual
desire, premature ejaculation or dyspareunia.
Conclusion Circumcision was associated
with significant sexual dysfunctions, prompting a careful selection of patients in whom
this procedure should be performed.
P147
Perceived Reduced Sleep-Related
Erections in Subjects with Erectile
Dysfunction: Psychobiological
Correlates
G. Rastrelli1, G. Corona1, 2, G. Balercia3, A. Sforza2,
G. Forti1, E. Mannucci1, M. Maggi1
1Clinical Physiopathology, University of Florence;
2Maggiore Hospital, Bologna; 3Marche Polytechnic
University, Ancona, Italy
Introduction Perceived reduced sleep-related erections (PR-SREs), along with erectile dysfunction (ED) and hypoactive sexual
desire, have been recently recognized as the
most important symptoms characterizing
late-onset hypogonadism in communitydwelling European men. However, the clinical correlates of PR-SREs have not been
thoroughly investigated. The aim of the
study is to evaluate the psychobiological
correlates of PR-SREs in a large series of
subjects consulting for ED.
Methods A consecutive series of 3,888 (mean
age 51.6 ± 13.0 years) ED patients attending
Table 16. J. Dias et al. Population Characterization
Total Population
(n = 128)
Circumcised
(n = 62)
Non-Circumcised
(n = 66)
43.62 (± 14.10)
41.79 (± 15.4)
45.34 (± 12.62)
Age (yrs)
School attendance (yrs)
0–4
5–9
10–12
College
22.7%
27.3%
25.8%
24.2%
19.4%
24.2%
27.4%
29.0%
25.8%
30.3%
24.2%
19.7%
Martial status
Single
Married
Divorced
Widowed
21.1%
70.3%
7.08%
0.8%
32.3%
54.8%
11.3%
1.6%
10.6%
84.8%
4.5%
0%
Diabetes mellitus
Duration (yrs)
14.1%
6.5% (± 6.95)
24.2%
6.87% (± 7.55)
4.5%
4.67 (± 2.31)
Smoking
Non Smoker
Former Smoker
Smoker
Pack-Year
47.7%
23.4%
28.9%
13 [6–25]
46.8%
17.7%
35.5%
30 [20–35]
48.5%
28.8%
22.7%
19 [10–28]
40.6%
59.4%
48.4%
51.6%
33.3%
66.7%
11.08 (± 3.74)
11.49 (± 3.81)
10.70 (± 3.65)
Use of chronical medication
Yes
No
Follow-up (months)
p = 0.158*
p = 0.144**
p < 0.001**
p = 0.002#
p = 0.340**
p = 0.660##
p = 0.083#
p = 0.237*
(): standard deviation; []: interquartile range; * t-student test; # Chi square test; ## Mann-Whitey test
412
J Reproduktionsmed Endokrinol 2012; 9 (5)
an outpatient ED clinic was retrospectively
analyzed. PR-SREs were investigated using
validated question #13 of structured interview on ED, which showed an accuracy of
approximately 70% in predicting Rigiscan™
(Dacomed Corp., Minneapolis, MN, USA)
parameters in a consecutive subset of 199
subjects. Clinical, biochemical, hormonal,
instrumental (penile color Doppler ultrasound; PCDU), and intrapsychic (Middlesex
Health Questionnaire) correlates were also
evaluated.
Results PR-SREs were reported by 63.6%
of patients. After adjustment for age, total,
analog free, calculated free and calculated
bioavailable testosterone (T) were significantly lower in subjects reporting more severe PR-SREs. After adjusting for T levels
and other confounders, PR-SREs were still
associated with higher body mass index, glucose, and triglyceride levels, as well as with
an increased 10-year cardiovascular risk
score. Accordingly, PR-SREs were more
prevalent in subjects showing a reduced dynamic peak systolic velocity at PCDU or reporting severe ED. Among intrapsychic parameters, depressive and histrionic traits
were significantly higher and lower, respectively, in subjects with any degree of PRSREs.
Conclusions Our study indicates that investigating PR-SREs represents an important
step during the andrological consultation. In
fact,reduced SREs might indicate an endocrine, organic, and/or psychiatric ED background that might help in directing further
investigation.
P148
Our Experience of MicroTESE in
Men with Non-obstructive Azoospermia
O. Tazhetdinov1, S. Gamidov1, 2, A. Popova2, R. Ovchinnikov2,
N. Kamaletdinov2, A. Schegolev2
1Urology, Russian National Research Medical University; 2Gynecology and Perinatology, Andrology, Scientific Centre of Obstetrics,Moscow, Russian Federation
Introduction There are several different
surgical procedures for spermatozoa retrieval when the patient has non-obstructive
azoospermia. The aim of our study was to
evaluate the effectiveness of TESE (testicular sperm extraction) and microTESE in men
with non-obstructive azoospermia.
Materials & Methods Analysis of complaints, history of the disease, physical examination, sperm analysis and laboratory investigations were performed. All patients
undergo genetic (AZF-factor, CFTR, cariotype) tests and hormone profile (FSH, LH,
testosterone, estradiol, prolactine, tyroxine).
In the period from march 2011 to april 2012
for 148 patients with non-obstructive azoospermia the different methods of surgical
treatment were perfomed (92 TESE and 56
microTESE). In TESE group the multiple
biopsies were performed.
Results There were no differences of FSHlevel, Inhibin B-level, volume of the testis in
the groups. In TESE group spermatozoa
were detected unilaterally in 34.8% (32 patients) and bilaterally in 39.1% (36 patients),
in microTESE group – 46.3% unilaterally
(26 patients) and 55.4% bilaterally (31 patients).
Conclusion MicroTESE is the most effective procedure for spermatozoa retrieval in
men with non-obstructive azoospermia. This
procedure could minimize the damage of testicular tissue and prevent vascular injury.
Bilateral exploration of the testes is more
beneficial.
P149
SIEDY Scale 3, a New Instrument
to Detect Psychological Component in Subjects with Erectile
Dysfunction
G. Corona1, V. Ricca2, E. Bandini1, G. Rastrelli1,
H. Casale1, E. A. Jannini3, A. Sforza4, G. Forti5,
E. Mannucci6, M. Maggi1
1Sexual Medicine and Andrology Unit, Florence; 2Psychiatric Unit, Department of Neurological and Psychiatric Sciences, University of Florence; 3School of Sexology, Department of Experimental Medicine, University of L’Aquila; 4Endocrinology Unit, Medical Department, Azienda Usl Bologna; 5Endocrinology Unit,
Department of Clinical Physiopathology; 6Diabetes
Section Geriatric Unit, Department of Critical Care,
University of Florence, Italy
Question We previously developed and
validated a structured interview (SIEDY)
dealing with the organic (Scale 1), relational
(Scale 2) and psychological (Scale 3) components of erectile dysfunction (ED). The
aim of this study is to identify a pathological
threshold for SIEDY Scale 3 and to analyze
Scale 3 score with biological and psychological correlates in subjects with sexual
dysfunction.
Method A pathological threshold of SIEDY
Scale 3 score in predicting subjects with a
medical history of psychopathology and using psychiatric drugs was identified through
receiver operating characteristic (ROC)
curve analysis, in a sample of 484 patients
(Sample A). Sensitivity and specificity,
along with possible interactions with biological and psychological (Middlesex Hospital Questionnaire, MHQ-score) correlates
were verified in a further sample of 1275 patients (Sample B).
Results In Sample A, 39 (8%) and 60 (12.4%)
subjects reported a positive medical history
for psychiatric disturbances or for the use of
psychotropic medication, respectively. The
association with both conditions was present
in 28 (5.8%) subjects. ROC curve showed
that SIEDY Scale 3 score predicts psychopathology with an accuracy of 69.5 ± 5.9%
(p < 0.002), when a threshold of 3 was chosen. When the same threshold was applied in
Sample B, it identified a higher ranking in
MHQ-A (free-floating anxiety), MHQ-S
(somatized anxiety) and MHQ-D (depressive symptoms) subscales, even after adjustment for age and Σ-MHQ (a broader index of
general psychopathology). In the same
sample, we also confirmed that pathological
Scale 3 score was related to a higher risk of
psychopathology at medical history or to the
use of psychotropic drugs as well as with
risky lifestyle behaviors, including smoking
and alcohol abuse, and elevated BMI.
Conclusions SIEDY represents an easy tool
for the identification of patients with a relevant intra-psychic component who should
be considered for psychological/psychiatric
treatment.
P150
Proteomic Analysis of Seminal
Plasma from Normozospermic and
None-obstructive Azoospermic
(NOA) Men to Discover New
Markers
A. Meyfour1, N. Lakpour2, M. M. Akhondi3, M. R. Sadeghi4
1Student Research Committee, Faculty of Paramedical
Sciences, Shahid Beheshti University of Medical Sciences; 2Nanobiotechnology Research Centre; 3Reproductive Biotechnology Research Centre; 4Monoclonal
Antibody Research Centre, Avicenna Research Institute, ACECR, Tehran, Iran
Introduction Seminal plasma is a complex
mixture of secretions with a large collection
of proteins arising from the testis, epididymis, prostate, and seminal vesicles. Azoospermia is the causes of 10–15% of male infertility that present as obstructive and noneobstructive azoospermia. Proteomics is able
to determine the changes in proteins pattern
following impairment of spermatogenesis
that lead to abnormal sperm criteria or absence or limited focal spermatogenesis in
testis. It can introduce new biomarkers for
prognosis of presence of sperm in testis of
NOA men.
Material & Methods Seminal plasma samples
were collected from two groups of normozoospermic as control and none-obstructive
azoospermic men contain three individuals
in each group. Protein profiles of these
samples were acquired using two dimensional
gel electrophoresis technique and colloidal
coomassie blue staining. Seminal plasma
patterns of 2 groups (normal and azoospermia) were compared by using ImageMaster
software.
Results 1179 proteins were detected on the
average gel that significant expressional dif-
ferences were observed in 7 proteins, 3 proteins had over expression in azoospermia
while one protein was underexpressed and 1
protein was totally absent in seminal plasma
of azoospermia and 2 newly expressed were
determined.
Conclusion Mass spectrometry identification of seminal plasma protein alterations by
2-D gel electrophoresis can lead us to better
understanding of molecular mechanisms involved in male infertility and finding biomarkers for azoospermia to utilize them in
clinical diagnosis (Fig. 25).
References:
1. Davalieva K, et al. Proteomic analysis of seminal plasma in men with different spermatogenic
impairment. Andrologia, 2012.
2. Batruch I, et al. Proteomic analysis of seminal
plasma from normal volunteers and post-vasectomy patients identifies over 2000 proteins and
candidate biomarkers of the urogenital system.
J Proteome Res 2011; 10: 941–53.
3. Yamakawa K, et al. Comparative analysis of
interindividual variations in the seminal plasma
proteome of fertile men with identification of potential markers for azoospermia in infertile patients. J Androl 2007; 28: 858–65.
P151
Thyroid Hormones and Male
Sexual Function
G. Corona1, F. Wu2, G. Forti3, D. Lee4, D. O’Connor5,
T. O’Neill4, N. Pendleton6, G. Bartfay7, S. Boonen8,
F. Casanueva9, J. Finn4, A. Giwercman10, T. Han11,
I. Huhtaniemi12, K. Kula13, M. Lean14, M. Punab15,
D. Vanderschueren16, E. A. Jannini17, E. Mannucci17, 18,
M. Maggi1
1Sexual Medicine and Andrology Unit, Department of
Clinical Physiopathology, University of Florence, Italy;
2Department of Endocrinology, The University of
Manchester, Manchester, UK; 3Endocrinology Unit,
Department of Clinical Physiopathology, University of
Florence, Italy;4Epidemiology Unit, The University of
Manchester, Manchester; 5Institute of Psychological
Sciences, University of Leeds; 6Clinical Gerontology,
The University of Manchester, Salford, UK; 7Gynaecology and Andrology, Albert Szent-Gyorgy Medical University, Szeged, Hungary; 8Division of Gerontology
and Geriatrics, Katholieke Universiteit Leuven, Leuven,
Belgium; 9CIBER de Fisiopatology a Obesidad y Nutricion, Santiago de Compostela University, Santiago de
Compostela, Spain; 10Reproductive Medicine Centre,
Malmo, University Hospital, Malmö, Sweden; 11Department of Endocrinology, Royal Free and University
College Hospital Medical School, Hampstead, UK;
12Department of Reproductive Biology, Imperial College, London, UK; 13Department of Andrology and Reproductive Endocrinology, Medical University of Lodz,
Lodz, Poland; 14Department of Human Nutrition, University of Glasgow, Glasgow, UK; 15Andrology Unit,
University of Tartu, Tartu, Estonia; 16Department of
Andrology and Endocrinology, Katholieke Universiteit
Leuven, Leuven, Belgium; 17School of Sexology, University of l’Aquila, L’Aquila; 18Diabetes Section Geriatric Unit, Department of Critical Care, Florence, Italy
Question The role of thyroid hormones in
Figure 25. A. Meyfour et al. Representative images of
colloidal coomassie blue stained 2-D gels from normal
and azoospermia to highlight the spot demonstrating
significant expressional difference between normal
and azoospermia seminal plasma samples.
the control of erectile functioning has been
only superficially investigated. The aim of
the present study is to investigate the association between thyroid and erectile function
in two different cohorts of subjects.
J Reproduktionsmed Endokrinol 2012; 9 (5)
413
ECA – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
7th ECA-Congress – Abstracts
Methods The cohort derives from the European Male Aging Study (EMAS study), a
multicentre survey performed on a sample of
3,369 community dwelling men aged 40–79
years (mean 60 ± 11 years). The second cohort is a consecutive series of 3203 heterosexual male patients (mean age 51.8 ± 13.0
years) attending our Andrology and Sexual
Medicine Outpatient Clinic for sexual dysfunction at the University of Florence
(UNIFI study). In the EMAS study all subjects were tested for thyroid-stimulating hormone (TSH) and free thyroxine (FT4). Similarly, TSH levels were checked in all patients
in the UNIFI study, while FT4 only when
TSH resulted outside the reference range.
Results Overt primary hyperthyroidism (reduced TSH and elevated FT4, according to
the reference range) was found in 0.3 and
0.2% of EMAS and UNIFI study, respectively. In both study cohorts, suppressed
TSH levels was associated with erectile dysfunction (ED). Overt hyperthyroidism was
associated with an increased risk of severe
erectile dysfunction (ED, hazard ratio = 14
and 16 in the EMAS and UNIFI study, respectively; both p < 0.05), after adjusting for
confounding factors. These associations were
confirmed in nested case-control analyses,
comparing subjects with overt hyperthyroidism to age, BMI, smoking status and testosterone-matched controls. Conversely, no
association between primary hypothyroidism and ED was observed.
Conclusions Erectile function should be
evaluated in all individuals with hyperthyroidism. Conversely, assessment of thyroid
function cannot be recommended as routine
practice in all ED patients.
P152
Gorlin-Goltz Syndrome – A Rare
Cause of Male Infertility
K.-G. Ballauf1, C. Protzel1, C. Kakies2, H. Mueller3,
O.W. Hakenberg1
1Department of Urology; 2Institute of Pathology, University of Rostock; 3IVF Centre, Rostock, Germany
Introduction The Gorlin-Goltz syndrome is
a rare autosomal dominant hereditary disease
defined by major and numerous minor
criterias. The most important features are
multiple basal cell carcinomas, odontogenic
keratocysts, palmar or plantar hyperkeratosis, calcifications of the falx cerebris and
skeletal abnormities. However, an association of Gorlin-Goltz syndrome and disorders
of the genitourinary tract are rarely known.
Methods We report on a 34 year old male
with a diagnosted Gorlin-Goltz syndrome
with anvoluntary childlessness, who was admitted to our department for further diagnostics. We present data of a systematic literature analysis on “Gorlin Goltz”, “cryptorchidism” and “fertility”.
Results The urological anamnesis revealed
a bilateral cryptorchidism with a right sided
orchiectomy during puberty.
The clinical examination showed a hypotrophy of the left testis including a varicocele
414
J Reproduktionsmed Endokrinol 2012; 9 (5)
testis 1°. The spermiogram showed an azoospermia and a hypospermia. The elevated serum FSH (26.2 IU/l) and LH (13.3 IU/l) indicated a hypergonadotrophic hypogonadism.
The sperm retrieval was performed as a trifocal-TESE (testicular sperm extraction) in
general anesthesia.
The histopathological examination showed a
germ cell aplasia in 50% of the tubuli and an
early maturation arrest (Johnson-score 4).
Thus assisted reproductive techniques were
unfortunately not successful.
The association of Gorlin-Goltz syndrome
and infertility has not been discussed in literature until now.
Conclusions The Gorlin-Goltz syndrome
can lead to male infertility due to cryptorchidism and hypogonadism. Although the
genitourinary disorders normally affect the
patients only by minor symptoms the issues
can restrict male reproductive capacity tremendously.
P153
Ultrastructure of Cultured Spermatogenic cells in Testicular Materials of Non-obstructive Azoospermic Patients
E. Yaprak1, O. Arda1, T. Irez2
1
Cerrahpasa Medical Faculty, Histology & Embryology, Istanbul University; 2Medical Faculty, Histology
& Embryology, Yeniyuzyil University, Istanbul, Turkey
Introduction Spermatogenic arrest is the
pause of spermatogenesis in some seminiferous tubules during spermatocyte or spermatid phase. In vitro spermiogenesis is an application to maintain the post-meiotic differentiation in spermatogenic arrest patients. Recently, it became an interest of many researchers because it can be used as a pretreatment in assisted reproductive techniques, however, remained to be unknown.
We searched in vitro spermiogenesis of testis
materials dissected from spermatogenic arrest patients by culturing their biopsy materials and investigated their ultrastructure under transmission electron microscopy
(TEM).
Materials & Methods Testicular biopsies
of non-obstructive azospermic patients (n =
18) diagnosed as maturation arrest were dissected mechanically AND discontinuous
density gradient of 40% and 80% was applied for isolation. Isolated cells were counted
and statistically analyzed using Dunn’s Test.
0.5 ml pre-cultured cell suspensions from
both gradients were washed and prepared for
transmission electron microscopy investigation. Other 0.5 ml cell suspension from 40%
gradient was washed and cultured with GIVF medium supplemented with FSH and
testosterone for six days. Half of the cultured
cells were centrifuged, smeared and stained
with May-Grünwald Giemsa. The other half
were also prepared for TEM and examined
under Jeol JEM 1011 TEM.
Results Cell counts isolated from 40% gradient contained significantly higher numbers
of round cells than 80% gradient). When isolated cells before the culture were examined
under TEM, round spermatids (Sa) with condensing nuclei were observed, as parallel to
light microscopic results. However, some
spermatids have had damaged morphology
and were apoptotic. Nuclei had apoptotic
bodies and cytoplasms were scattered. Connective tissue cells and collagen bundles and
elastic fibers were shown in some samples
(Fig. 26).
TEM results showed the elongated spermatids (Sd) among the cultured cells, as seen
under the light microscope. However, ultrastructure of some spermatids were damaged,
had apoptotic bodies, degenerated membrane and acrosomes (Fig. 27).
Conclusions It is a controversial issue that
mechanical dissection of seminiferous tubules of azospermic patients and cell isolation procedures for in-vitro maturation studies can be hazardous for cell homeostasis. In
this study, we showed that apoptosis is induced in both pre- and post-cultured cells
due to mechanical forces arised from centrifugation. In spite of application of the
ideal culture conditions with FSH and testosterone conditioned medium (corresponding to the literature), since spermatogenic
cells are delicate and un-protected, isolation
procedures may affect them negatively. Low
culture success may be due to the damaged
ultrastructure of germ cells. Thus, we conclude that alternations in the physiological
conditions of cells may result in damaged
morphology.
Figure 26. E. Yaprak et al.
Figure 27. E. Yaprak et al.
P155
Multifactorial Etiology of Erectile
Dysfunction in Patients with
Prostate Carcinoma Treated by
Radiotherapy
A. Mancini1, L. Tagliaferri2, S. Raimondo1, R. Festa3,
G. Mantini2, G. C. Mattiucci2, S. Luzi2, A. Pontecorvi1,
V. Valentini2, N. Cellini2
1Internal Medicine, Division of Endocrinology; 2Division of Radiotherapy, Catholic University, Rome;
3Clinical and Molecular Science, Polytechnic University of the Marche, Ancona, Italy
Erectile dysfunction (ED) is a frequent problem in patients treated for prostate carcinoma, profoundly affecting quality of life. It
has been reported that neurovascular mechanisms can be affected by radiotherapy; however, ED can recognize a more complex multifactorial etiology, including ageing per se,
patient comorbidity, metabolic and endocrine factors. Hypogonadism can also represent a biochemical and clinical entity; but
hormones, other than testosterone (T) can
influence sexual function; we previously
demonstrated an increased estradiol concentration in patients affected by venous leakage
ED.
In order to evaluate the endocrine component, we have evaluated a group of 24 patients, aged 51–76 ys., treated by radiotherapy
and antiandrogen pharmacological therapy
(bicalutamide), with ED, studying: metabolic parameters (glycemia, total HDL LDL
cholesterol, triglycerides, uric acid, albumin), hormones (T, LH, FSH, estradiol, dihydrotestoterone, SHBG, IGF-1, PRL, FT3,
FT4, TSH, insulin), evaluation of international index of erectile failure (IIEF); main
vascular and neurological factors were excluded on the basis of basal Doppler evaluation and vibration threshold.
7 patients, previously treated with LHRH
analogues, were still hypotestosteronemic
(mean ± SD 0.93 ± 0.59 ng/ml), while in the
other patients testosterone exhibited normal
values (6.74 ± 2.62 ng/ml). Testosterone/estradiol molar ratio markedly different in the
two groups (0.59 ± 0.23 in hypo-T patients
and 1.56 ± 0.26 in normo-T patients); IIEF
were significantly lower in hypo-T than in
normo-T patients (4.2 ± 7.4 vs 10.4 ± 10.8).
Metabolic parameters were markedy worse
in hypo-T vs normo-T (HOMA index 5.42 ±
6.6 vs 2.41 ± 1.4).
These preliminary data suggest that, despite
similar radiotherapic schedule treatment,
sexual function is strictly related to hormonal milieu and metabolic status. A systematic approach to evaluate ED is mandatory in such patients, since improving some
components ED can be positively influenced
by personalized therapy.
P156
Inhibition of Circulating Angiogenic Cells from Healthy Men is
α -depenassociated with a TNF-α
dent Activation of Caspase Cascade and to Mitochondrial Depolarization
S. Francavilla1, A. D’Angeli1, A. Barbonetti1, S. D’Andrea1,
M. Di Padova2, S. Filipponi1, E. Alesse2, F. Francavilla1
1Internal Medicine; 2Biotechnological and Applied
Clinical Sciences, University of L’Aquila, Italy
Introduction Soluble factors in the serum
of men with erectile dysfunction (ED) and
vascular risk factors (VRFs) inhibited cultured mononuclear circulating cells (MNCs)
of healthy men to differentiate to circulating
angiogenic cells (CACs), putatively involved
in endothelial damage repair [Pelliccione et
al. Int J Androl, 2012]. Here we explored
Figure 28. S. Francavilla et al. Effect of TNF-α (10 ng/
ml) with or without 100 mg/ml competitive anti-type 1
TNF-α receptor (anti-TNFR1) monoclonal antibody on
differentiation (a) and mitochondrial membrane potential (b) of circulating angiogenic cells (CACs).
(a): *p = 0.01 vs all the others (Tukey HSD test). HPF =
high power field. (b): *p = 0.001 vs untreated and p =
0.008 vs Anti-TNFR1+TNF-α (Tukey HSD test).
molecular mechanisms potentially involved
in a reduced differentiation of CACs from
MNCs of healthy men, focusing on tumor
necrosis factor-α (TNF-α).
Material & Methods After 4 days of culture
of MNCs from healthy men, adherent cells
were maintained for further 3 days with or
without hrTNF-α (10 ng/ml), with or without a 15 min pre-exposure to a competitive
anti-type 1 TNF-α receptor (TNFR1) mAb
(100 mg/ml). After culture, CACs were identified by uptake of acetylated low-density lipoprotein and binding of Ulex europaeus agglutinin I. Mitochondrial membrane potential (ΔΨm), was assessed by flow cytometry
with JC-1, which emits orange or green fluorescence in the presence of high or low
ΔΨm, respectively. Caspase activation was
evaluated by flow cytometry using permeable FITC-conjugated peptides (IETD-FMK,
LEHD-FMK and DEVD-FMK), which irreversibly bind to the activated caspase-8, -9
and -3, respectively, in apoptotic cells.
Results The mean number of CACs from
healthy men was significantly reduced after
culturing MNCs with hrTNF-α compared to
standard medium. TNF-α treatment also significantly decreased cellular ΔΨm compared
to control medium (36.0 ± 7.7% vs 71.8 ±
3.8%, p < 0.05) (Fig. 28). TNF-α treatment
was associated to caspase-8 (27.3 ± 18.4%),
caspase-9 (33.2 ± 25.4%) and caspase-3
(31.0 ± 23.7%) activation (controls: 7.9 ±
3.6%, 6.0 ± 1.3%, 5.4 ± 4.0%, respectively,
p < 0.05) (Fig. 29). The effects of TNF-α on
CACs differentiation, ΔΨm and caspase activation were prevented by the anti-hTNFR1
mAb.
Conclusion Increased circulating levels of
TNF-α, reported in men with ED and VRFs,
could adversely impact CACs differentiation
from MNCs by triggering both death-receptor pathway and mitochondrial pathway of
apoptosis. Current study are analysing the
contribution of TNF-α in the inhibition of
CACs from healthy men by serum of men
with ED.
Figure 29. S. Francavilla et al.
Histograms of fluorescence for
activated caspases at flowcytometry. Staurosporine (1 mM)
was used as positive control for
caspase activation.
J Reproduktionsmed Endokrinol 2012; 9 (5)
415
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
P157
Ejaculatory Disorders as a Result
of Antituberculous Therapy
ECA – Abstracts
E. Kulchavenya, D. Kholtobin
Research TB Institute, Novosibirsk, Russian Federation
Introduction Majority of patients with pulmonary TB (PTB) are young men for whom
sexual function is very important. The aim
was to estimate the frequency of ejaculatory
disorders in men suffering from tuberculosis
and to determine the effect of TB treatment
on the ejaculation.
Material & Methods 98 PTB patients were
enrolled in study. The intravaginal latency
time before onset of TB was estimated retrospectively and in 3 months of anti-TB
therapy.
Results Before anti-TB therapy 14.3% of
PTB patients had ejaculatory disorders: 10.2%
had premature ejaculation, and 4.1% delayed
ejaculation. The rest 85.7% had normal
ejaculation. After three months of the therapy
with 4 anti-TB drugs (isonazid, rifampicin,
pyrazinamid and streptomycin) the share of
patients with normal ejaculation decreased to
61.2%. Frequency of premature ejaculation
increased twice (20.4%), and delayed ejaculation – in 4.5 times (18.4%).
Conclusion Proportion of ejaculatory disorders in patients with pulmonary TB before a
start of anti-TB therapy was the same as in
population as whole. So, tuberculosis as a
disease does not damage an ejaculatory function. Three months of standard anti-TB
therapy with four drugs significantly worsened the ejaculatory function of patients.
The high growth of delayed ejaculation may
be explained by neurotoxicity of anti-TB
drugs. So, tuberculosis as a disease does not
damage an ejaculatory function, but the
treatment of tuberculosis does it. There is
necessary a special pathogenetic therapy to
prevent this complication.
P158
Sexual Health of Siberians
E. Kulchavenya, E. Brizhatyuk, D. Kholtobin
Research TB Institute, Novosibirsk, Russian Federation
Objectives To obtain a greater understanding of sexual status, behavior and habits
among men in Siberia to offer special approach of treatment for sexual dysfunction.
Design and Methods A population-based
study was conducted among men in Siberia.
1280 men filled in special detailed questionnaire on sexual health.
Results 23% were healthy; others had
chronic diseases. 84% are rare consumer of
the alcohol. 29% were non-smokers, others
smoked – from “sometimes” (29%) up to
“more than one pack per day” (16%). 42%
used to exercises, 4% did it rarely, and 54%
of the men were not engaged in sports at all.
In 3% the first coitus was in 14; the latest
debut of sexual life was in 24. 81% had only
one constant sexual partner. The self-estimation of the erection has appeared is low. Only
416
J Reproduktionsmed Endokrinol 2012; 9 (5)
33% estimated their erection as “excellent”,
27% as “good”, 20% “middle”, 13% “poor”
and 7% “very poor”. Exactly the same proportion was revealed in the self-estimation of
life success, career etc. 33% men counted
their life success as “excellent”, 27% thought
it was “good”, 20% “middle”, 13% “poor”
and 7% “very poor”.
Conclusion A status of sexual health is satisfactory. We have revealed high direct correlation between level of the erection and life
success. It is the additional evidence that
erectile dysfunction is both medical and social problem.
P159
Women as a Cause of Male Sexual
Dysfunction
E. Kulchavenya, E. Brizhatyuk, D. Kholtobin, A. Osadchiy
Research TB Institute, Novosibirsk, Russian Federation
Background Sexual function is an action of
a couple, but each participant demonstrates it
in different style.
Material & Methods Population study on
1280 Russian men (mean age 36.0 years) and
768 women (mean age 35.8 years), who
filled in special questionnaires. Mostly they
were from Siberia – coldest region of Russia.
Results Life span in Russia is 58.6 years for
men and 72.4 years for women. In our study
76% men and 84% women consumed an alcohol rarely, and 19% and 9% accordingly –
did not drink it at all. 71% women and only
30% men were non-smokers. Both sexes had
one constant partner in 81%. 57% women
and 43% men used condoms for contraception, but only 29% women and 17% men did
it in sex with unknown partner, in casual
sexual affairs. In 5-score scale sexual function was “great” in 34% women and 33%
men, poor – in 7% and 20% accordingly. We
have found direct correlation between male
sexual function and their successfulness in
whole, but there was no this phenomenon in
women. Only 22% woman under 40 considered the size of the penis is important, 28%
believed it is an average important and a half
of them unimportant. None did think the size
has great importance. After 40 the proportion has changed. 9% believed the size is
very important, 18% important, 44% mild
important and 29% unimportant. Meanwhile
a size of the penis was very important for
60% young men and twice less (31%) for
men older 40.
Conclusion There are severe gender differences in life style, sexual function, contraception etc, and these differences should be
taken into account not only sexual medicine
specialist, but any doctors and social workers.
P160
Ejaculatory Disorders in Southeners
and Siberians
E. Kulchavenya, E. Brizhatyuk
Research TB Institute, Novosibirsk, Russian Federation
Background Ejaculatory disorders are one
of the most frequent sexual dysfunction. The
aim was to evaluate that problem in different
climatic regions.
Material & Methods 417 Russian men (149
from South region – “Southerners”, and
other 268 – “Siberians”) were enrolled in
study. Duration of IELT, level of testosterone, co-morbidity chronic prostatitis were
estimated.
Results Young men were 34%, older 50
years 18.2%. 59.2% of young men had normal ejaculation, but only 20% in age after
50, when delayed ejaculation predominated.
43.6% of southerners and 35.8% of Siberians had premature ejaculation, and accordingly 6.1% and 14.6% delayed ejaculation.
26.7% southerners and 29.3% Siberians
were hypogonadal. Among men with normal
testosterone normal ejaculation was in
74.6%. Among hypogonadal patients 51%
had premature ejaculation and 25.5% – delayed ejaculation. 69.9% of all men had
chronic prostatitis. Only 46% of patients
with chronic prostatitis had normal ejaculation, 43.3% had premature ejaculation and
10.7% had delayed ejaculation.
Conclusion In cold climate delayed ejaculation is more often sexual dysfunction, than in
South, where premature ejaculation predominates. Low level of testosterone resulted in
ejaculatory disorders, as well as chronic prostatitis. Thus, there are severe differences in
ejaculation between young and old men,
southerners and Siberians, eugonadal and
hypogonadal. It is impossible to speak about
“normal” in copulative act without taking into
account age, co-morbidity, morality, region
of living of the patient etc.
P161
Poor Response to Alprostadil ICI
Test is Associated with Arteriogenic
Erectile Dysfunction and Higher
Risk of Major Adverse Cardiovascular Events
G. Rastrelli1, G. Corona1, 2, M. Monami3, C. Melani3,
D. Balzi3, A. Sforza2, G. Forti1, E. Mannucci3, M. Maggi1
1Clinical Physiopathology, University of Florence;
2Maggiore Hospital, Bologna; 3University of Florence,
Italy
Introduction Intracavernous alprostadil injection (ICI) test has been considered useless
in assessing the vascular status of subjects
with erectile dysfunction (ED). The aim of
the study is to analyze the clinical correlates
of ICI test in patients with ED and to verify
the value of this test in predicting major adverse cardiovascular events (MACE).
Methods A consecutive series of 2,396 men
(mean age 55.9 ± 11.9 years) attending our
outpatient clinic for sexual dysfunction was
retrospectively studied. A subset of this
sample (n = 1,687) was enrolled in a longitudinal study. Several clinical, biochemical,
and instrumental (penile color Doppler ultrasound; PCDU) factors were evaluated. All
patients underwent an ICI test, and responses
were recorded on a 4-point scale ranging
from 1 = no response to 4 = full erection.
Results Among the patients studied, 16.4%,
41.2%, 40.2% and 2.2% showed grade 4, 3,
2, and 1 ICI test response, respectively. After
adjusting for confounders, subjects with
grade 1 ICI test response showed reduced
perceived sleep-related, masturbation-related, and sexual-related erections when
compared with the rest of the sample. In addition, a worse response to ICI test was associated with a higher prevalence of hypogonadism-related symptoms and signs along
with lower testosterone levels. The prevalence of both diabetes mellitus and metabolic
syndrome was inversely related to ICI test
response. Accordingly, dynamic and basal
peak systolic velocity (PSV), as well as acceleration at PCDU, decreased as a function
of ICI test response. In the longitudinal
study, after adjusting for confounders, grade
1 response was independently associated
with a higher incidence of MACE (hazard
ratio = 2.745 [1.200–6.277]; p < 0.05).
These data were confirmed even when only
subjects with normal PSV (> 25 cm/s) were
considered.
Conclusions Our results demonstrate that
poor ICI test response is associated with several metabolic disturbances and higher incidence of MACE. We strongly recommend
performing ICI test with alprostadil in all ED
subjects.
Results Among the patients studied, 78.7%
Conclusion Overall, Progetto Cuore is a
reported erectile dysfunction, 51.1% hypoactive sexual desire (HSD), 86.7% perceived
reduced sleep-related erections (PR-SREs)
and 19.1% premature ejaculation. The use of
5ARIs was associated with an increased risk
of HSD and PR-SRs whereas no relationship
was found with erectile dysfunction and
ejaculation disturbances. Subjects using
5ARIs also more frequently had gynaecomastia along with reduced SHBG and higher
calculated free testosterone levels. All these
associations were confirmed in a case-control study comparing 5ARIs users with agebody mass index-smoking status and total
testosterone matched controls.
Conclusions Our data indicates that use of
5ARIs in men with sexual dysfunction does
not significantly exacerbate pre-existing
ejaculatory or erectile difficulties, but can
further impair their sexual life by reducing
sexual drive and spontaneous erection.
proper instrument for evaluating CV risk in
ED subjects. However, in ED, other factors
as low-education and partner’s HSD concur
to risk profile. At variance with low-education, Progetto Cuore is not accurate enough
to predict MACE in subjects with partner’s
HSD, suggesting that the latter effect is not
mediated by conventional risk factors included in the algorithm.
P162
α -reductase-related
Inhibitors of 5α
Side Effects in Patients Seeking
Medical Care for Sexual Dysfunction
Introduction The classification of subjects
as low or high cardiovascular (CV) risk is
usually performed by risk engines, based
upon multivariate prediction algorithms.
However, their accuracy in predicting major
adverse CV events (MACE) is lower in highrisk populations, since they take into account
only conventional risk factors. The aim of
the study is to evaluate the accuracy of
Progetto Cuore risk engine in predicting
MACE in subjects with erectile dysfunction
(ED), and to test the role of unconventional
CV risk factors, specifically identified for
ED.
Methods A consecutive series of 1,233 men
(mean age 53.33 ± 9.08 years) attending our
outpatient clinic for sexual dysfunction was
longitudinally studied for a mean period of
4.4±2.6 years. Several clinical, biochemical,
and instrumental parameters were evaluated.
Subjects were classified as high- or low-risk,
according to previously reported ED-specific risk factors.
Results In the overall population, Progetto
Cuore-predicted population survival was not
significantly different from the observed one
(p = 0.545). Accordingly, Receiver Operating Characteristic (ROC) analysis shows that
Progetto Cuore has an accuracy of 0.697 ±
0.037.
G. Rastrelli1, G. Corona1, 2, E. Maseroli1, G. Balercia3,
A. Sforza2, G. Forti1, E. Mannucci4, M. Maggi1
1Clinical Physiopathology, University of Florence;
2Maggiore Hospital, Bologna; 3Marche Polytechnic
Univesity, Ancona; 4University of Florence, Italy
Introduction Despite their efficacy in the
treatment of benign prostatic hyperplasia
(BPH) the popularity of inhibitors of 5α-reductase (5ARIs) is limited by their association with adverse sexual side effects. However, the real impact of 5ARIs on sex hormones and sexual function is controversial.
The aim of the study is to investigate the role
of 5ARIs therapy on hormonal parameters
and sexual function in men already complaining of sexual problems.
Methods A consecutive series of 3837 men
(mean age 63.5 ± 12.8 years) attending our
outpatient clinic for sexual dysfunction was
retrospectively studied. Several clinical, biochemical and instrumental (penile color
doppler ultrasound; PCDU) factors were
evaluated.
P163
Two Unconventional Risk Factors
in Estimating Risk of Major Adverse Cardiovascular Events in
Subjects with Erectile Dysfunction: Low Education and Reported
Partner’s Hypoactive Sexual Desire in Comparison with Conventional Risk Factors
G. Rastrelli1, G. Corona1, 2, A. D. Fisher1, A. Silverii1,
E. Mannucci3, M. Maggi1
1
Clinical Physiopathology, University of Florence;
2
Maggiore Hospital, Bologna; 3University of Florence,
Italy
P164
Testosterone/Estradiol Ratio
Regulates NO-induced Bladder
Relaxation and Responsiveness
to PDE5 Inhibitors
L. Vignozzi1, S. Filippi1, A. Morelli1, P. Comeglio1,
I. Cellai1, E. Sarchielli2, E. Maneschi1, R. Mancina1,
G. B. Vannelli2, M. Gacci3, M. Maggi1
1
Clinical Physiopathology, University of Florence;
2Histology and Forensic Medicine, Anatomy, Florence;
3Urology, University of Florence, Florence, Italy
Introduction Although originally developed
and marketed for erectile dysfunction (ED),
phosphodiesterase type 5 inhibitors (PDE5i)
have also been investigated in a variety of
other potential medical applications, including pulmonary hypertension, low urinary
tract symptoms (LUTS) and the management
of sexual dysfunctions in women. However,
PDE5i failed to demonstrate any consistent
effect in women with sexual arousal disorder. The biological underpinning of the gender-asymmetry in the efficacy of PDE5i has
not been elucidated. The aim of the present
study is to investigate and directly compare
PDE5 expression and biological activity in
female and male bladder, which is the less
dimorphic urogenital structure.
Results The nitric oxide-donor, sodium nitroprussiate (SNP) is almost 3-log unit less potent in relaxing the male bladder than the female one. On the contrary, the PDE5 resistant cGMP analog SP-8-Br-PET-cGMPS induces a dose-dependent relaxation that is
identical among genders. The effect of the
selective PDE5i vardenafil in potentiating
SNP-induced bladder relaxation is almost
three-times more pronounced in male than in
female rat bladder. Accordingly, the cGMPhydrolyzing activity of PDE5 is two-fold
higher in male vs. female homogenates. To
further investigate the effect of changing sex
steroid milieu on PDE5, we ovariectomize
female rats and alternatively replace with estradiol, progesterone, testosterone or testosterone + letrozole, to completely abrogate
testosterone-induced estrogen formation.
Masculinization of female rats – by the simultaneous administration of testosterone
and letrozole in ovariectomized rats – decreases by a factor of two responsiveness to
SNP, that is even lower than in untreated
males, while dramatically increases the activity of vardenafil in potentiating SNP-induced relaxation. Interestingly, vardenafil
activity in potentiating SNP-induced relaxation in bladder is tightly associated with the
increased testosterone/estradiol ratio.
J Reproduktionsmed Endokrinol 2012; 9 (5)
417
ECA – Abstracts
7th ECA-Congress – Abstracts
7th ECA-Congress – Abstracts
ECA – Abstracts
Conclusion This study demonstrates that
PDE5 biological and catalytic activity is
more pronounced in male as compared to female bladder, and that testosterone/estradiol
ratio positively regulates responsiveness to
PDE5 inhibitors, thus suggesting that male
bladder could be regarded as a more suitable
target for PDE5i than the female counterpart.
P165
“It Takes 2 to Tango”: The Relational
Domain in a Cohort of Subjects with
Erectile Dysfunction (ED)
V. Boddi1, 2, G. Corona1, 2, M. Maggi1, 2
1
Dipartimento Fisiopatologia Clinica, Florence; 2University, Medical Doctor, Florence, Italy
Introduction The relational domain of
Erectile Dysfunction (ED) could be difficult
to investigate in a clinical setting. We developed and validatedSIEDY, a 13-item structured interview, which assesses the organic,
relational and intra-psychic domains of ED.
SIEDY Scale scores 1 and 3 were previously
validated to evaluate, respectively, organic
and intra-psychic domain in subjects with
ED.
Aim Aim of the present study is to identify a
pathological threshold of SIEDY Scale 2
score to assess the relational impairment in
patients with Erectile Dysfunction (ED).
Method A non-consecutive series of 2992
heterosexual males with ED was retrospectively studied with structured interview
SIEDY.
Main Outcome Measure We assumed that
conflict within the couple, and/or the presence of extramarital affairs, reflects the presence of an impaired relationship in a sample
of 844 patients studied without systemati-
418
J Reproduktionsmed Endokrinol 2012; 9 (5)
cally applying a psychometric questionnaire
(A).
Results In sample A: 246 (29.2%) and 56
(6.6%) subjects reported conflicts within the
couple or extramarital affairs, respectively.
Scale 2 score predicts couple impairment
with accuracy of 62.0 ± 2.2% (p < 0.0001),
showing a sensitivity of 53% and specificity
of 66%, when a threshold of ≥ 2 was chosen.
In Sample B (2148 patients studied applying
a psychometric questionnaire), when the
same threshold was chosen, a pathological
Scale 2 Score was associated with a higher
risk of pathological MHQ-A, and MHQ-D
score, with higher prevalence of psychopathology and higher Scale 3, even when adjusted for confounders. In the same sample, a
Scale 2 score ≥ 2 was associated with reduced intimacy during sexual intercourse, as
well as with worse sexual functioning.
Conclusions Until now, no instrument has
been available to identify and quantify the
marital domain of ED. The validation of a
threshold of SIEDY Scale 2 score represents
an easy tool for the identification of ED patients with a relevant marital impairment.
Late Abstract
Influence of Sexual Steroids on
Short-Term and Long-Term
Memory
Y. Morikawa1, M. Zitzmann2, J. Schmitz2, B. Pfleiderer1
1Department of Clinical Radiology University Hospital;
2Centre of Reproductive Medicine, Münster, Germany
In recent years, sexual steroids have been
arising as unignorable influence factors for a
better understanding of human cognition.
Among various cognitive processes the focus in this presentation will be on human
memory, which has been gaining increasing
significance in our aging society. Previous
studies indicated that testosterone improves
memory performance by modulating the hippocampus, a relevant structure for memory
consolidation. Estrogen and progesterone
play a crucial role in memory processes in
women. The modulating effects of these steroid hormones can be explained by the high
number of steroid hormone receptors in the
hippocampus.
These findings are intriguing enough to explore sexual steroid-dependent functional architecture of memory. Up-to-date there is
little known about neural activities interacting with various sexual steroids in men and
women during memory processes.
In this ongoing study, we investigate the influence of sexual steroids on verbal and nonverbal short-term and long-term memory
performance as well as their gender specific
neural activities, using functional magnetic
resonance imaging (fMRI). Male (n = 29,
mean age 30.1 ± 4.4), female (n= 22 mean
age: 26.6 ± 3.4) and hypogonadal subjects
(n = 8 mean age: 33.6 ± 2.9) were included in
the study so far. Hypogonadal men served as
a model for low testosterone and impact on
memory performance. Neural activities, reaction times and error rates were assessed. At
this congress we present gender specific behavioral results in relation to (1) the stimulus
materials (2) the encoding and retrieving
processes and (3) hormonal levels. We found
a tendency of a better performance in men
compared to women and hypogonadal men
in non-verbal tasks. In contrast, hypogonadal men and women performed better than
men in verbal tasks.
Acknowledgement This project is sponsored by
the Federal Ministry of Education and Research
and the EU European Social Fund (01FP1060/61).
7th ECA-Congress – Abstracts
A
D
J
Abarikwu S. ........................................... 383
Abdilmanov K. ....................................... 334
Abdul Wahab A. Y. ........................ 372, 382
Abdulha A. ............................................. 372
Abdulhak A. ........................................... 334
Almstrup K. ............................................ 349
Alves M. ................................................. 370
Amaral A. ............................................... 353
Amini M. ................................................ 362
Amorim R. ..................................... 348, 355
Andersen J. M. ....................................... 410
Ansari A. S. ............................................ 330
Aschim E. ............................................... 403
Aslani F. ................................................. 346
Ausmees K. ................................... 328, 399
Axelsson J. ............................................. 386
Aziz A. .................................................... 372
Dias J. ............................ 335, 348, 355, 412
Dimitriadis F. ................................ 393, 410
Donat R. ................................................. 402
Dreier K. ................................................. 373
Janjgava S. .............................................. 325
Jensen T. K. ............................................ 338
Jezek D. .................................................. 411
Joensen U. ...................................... 381 (2×)
Juul A. .................................................... 344
B
Bak C. ............................................ 342, 400
Baldi E. ................................................... 343
Ballauf K.-G. .......................................... 414
Bang A. K. .............................................. 411
Barbonetti A. ................. 346, 361, 378, 379
Bentmar Holgersson M. ......................... 391
Bhushan S. ............................................. 364
Biliñska B. .............................................. 367
Bobjer J. ................................................. 326
Boddi V. .................................................. 418
Boitani C. ............................................... 330
Boitrelle F. ...................................... 377 (2×)
Bongers R. .............................................. 395
Bozzini G. ............................. 335, 340, 349
Braga I. ................................................... 401
Branko Z. ................................................ 402
Brokken L. J. .......................................... 387
Bustos-Obregon E. ................................. 380
C
Camarena S. ........................................... 332
Cappallo-Obermann H. ................. 343, 376
Castiglioni M. ............................... 354, 378
Castillo J. ................................................ 340
Channer K. ............................................. 333
Charron Y. ............................................... 394
Chernykh V. ............................................ 389
Chianese C. ................................... 353, 392
Corona G. .............. 324, 384, 408, 413 (2×)
Cox K. .................................................... 374
E
Egeberg D. L. ......................................... 396
Ehala-Aleksejev K. ................................ 409
Eisenberg M. L. ...................................... 338
Ellis D. .................................................... 358
Elteer B. .................................................. 341
Elzinga-Tinke J. E. ................................. 401
Erenpreiss J. ........................................... 366
Escórcio de Almeida F. .......................... 404
F
Ferfouri F. ............................................... 353
Feuerstacke C. ........................................ 370
Fietz D. ................................................... 323
Fijak M. .................................................. 362
Fraczek M. .............................................. 327
Francavilla S. ......................................... 415
G
Galuska S. P. .......................................... 322
Gatimel N. ..................................... 331, 374
Giebler M. .............................................. 375
Godovalov A. ................................. 360 (2×)
Greither T. .............................................. 375
Gromoll J. ............................................... 344
Gudipati M. ............................................ 380
Günther S. .............................................. 366
Gutermuth J. ........................................... 337
H
Haggeney T. ........................................... 363
Haider A. ....................... 324, 394, 405 (3×)
Hamdi S. ................................................. 322
Hauptmann A. ............................... 337, 372
Hejmej A. ............................................... 366
Henkel R. ....................... 338, 358, 364 (2×)
Hickerton B. ........................................... 358
I
Irrle S. ..................................................... 350
Isidori A. M. .................................. 329, 342
Ivell R. .................................................... 322
K
Karamountzos L. .................................... 331
Kilcoyne K. ............................................ 383
Koelle S. ................................................. 354
Konrad L. ............................................... 369
Kotula-Balak M. ..................................... 367
Krasnyak S. ............................................ 334
Kratz E. M. .................................... 385, 386
Kraus M. ................................................. 398
Krausz C. ................................................ 352
Kristiansen W. ........................................ 404
Kulchavenya E. ............ 327, 362, 363 (2×),
416 (4×)
Kvist L. ................................................... 391
L
Lang T. .......................................... 326, 359
Langenstroth D. ..................................... 371
Laszczynska M. ...................................... 371
Lebedinskaya O. V. ................................ 388
Leisegang K. ................................. 325, 404
Li H. ....................................................... 321
Lindgren I. .............................................. 391
Lo Giacco D. G. ............................ 391, 393
Looijenga L. ........................................... 349
Lydka M. ................................................ 365
M
Maggi M. ....................... 329, 332, 397 (2×)
Mallidis C. .............................................. 343
Mancini A. .............................................. 415
Maneschi E. ............................................ 407
Marchiani S. .................................. 377, 410
Marchlewicz M. ..................................... 383
Marchlewska K. ..................................... 368
Marconi M. .................................... 350, 354
Meyfour A. ............................................. 413
Meyron-Holtz E. .................................... 321
Micillo A. ............................................... 373
Mietens A. .............................................. 370
Milardi D. ............................................... 401
Minhas S. ...................................... 344, 350
Mitchell R. ............................................. 387
J Reproduktionsmed Endokrinol 2012; 9 (5)
419
ECA – Abstracts
Index of primary authors
ECA – Abstracts
7th ECA-Congress – Abstracts
Moeini A. ............................................... 335
Morikawa Y. ........................................... 418
Muratori M. ............................................ 376
Rousseaux S. .......................................... 339
Rurik I. ................................................... 329
Rusz A. ................................................... 359
N
S
Noblanc A. ............................................. 374
Nordkap L. ............................................. 407
Saboohi S. .............................................. 389
Sachdeva K. ................................... 389, 411
Sadighi Gilani M. A. .............................. 352
Sadov S. .................................................. 382
Sanchez V. .............................................. 332
Shaeer O. ....................................... 328, 334
Shiranov K. ............................................ 360
Slowikowska-Hilczer J. ......................... 350
Smith L. .................................................. 355
Söder O. .................................................. 348
Soltanghoraee H. .................................... 403
Steinfatt H. ............................................. 337
Steinfeld K. ............................................ 387
Stoetzel S. ............................................... 388
O
Oduwole O. O. ....................................... 339
Oliveira P. F. ........................................... 371
Oszukowska E. ....................................... 368
P
Paiva C. ................................................... 379
Palanisamy D. ........................................ 354
Paradowska-Dogan A. ............................ 331
Pelka S. ................................................... 398
Pelliccione F. .......................................... 341
Peralta J. ................................................. 400
Pezzella A. .............................................. 347
Piasecka M. ............................................ 389
Pilatz A. ................................. 325, 358, 359
Pitteloud N. ............................................ 349
Pomm K. ................................................ 385
Porst H. ................................................... 356
Pyttel S. .................................................. 375
R
Rastkhani H. ........................................... 392
Rastrelli G. ................... 324, 406 (2×), 412,
416, 417 (2×)
Reuter K. ................................................ 369
Richardson M. E. ................................... 332
Rizald F. ................................................. 379
Robaire B. .............................................. 336
Rohayem J. ............................................. 351
420
J Reproduktionsmed Endokrinol 2012; 9 (5)
T
Tamburrino L. ........................................ 398
Tauber R. L. ........................................... 341
Tazhetdinov O. ...................... 337, 407, 412
Teston C. ................................................ 347
Thomas S. ............................................... 396
Toppari J. ................................................ 321
Torabi F. ................................................. 395
Torres Carreira J. .................................... 397
Tournaye H. ............................................ 343
Tran T. T. K. ........................................... 386
Trottmann M. ......................................... 347
Tung K. ................................................... 345
Turek P. J. ............................................... 344
Tüttelmann F. ................................ 323, 390
U
Urbschat A. ............................................. 378
V
van den Driesche S. ............................... 330
Vignozzi L. ............ 326, 408 (2×), 409, 417
Vives Sune A. ......................................... 363
von Kopylow K. ..................................... 365
W
Waclawska A. ......................................... 352
Wagenlehner F. ....................................... 345
Walczak-Jedrzejowska R. ...................... 365
Walecki M. ............................................. 393
Walschaerts M. ....................................... 382
Welter H. ................................................ 323
Werler S. ................................................. 395
Wespes E. ............................................... 341
Westernströer B. ..................................... 369
Weyand I. ............................................... 356
Wiehle R. ................................................ 406
Wilkie A. O. M. ...................................... 336
Windschüttl S. ........................................ 396
Wistuba J. ............................................... 345
Woitzik C. M. ......................................... 337
Wolski J. K. ............................................ 392
Wu F. ...................................................... 336
Wyllie M. ................................................ 342
Y
Yan W. .................................................... 339
Yang Y. ................................................... 390
Yaprak E. ................................................ 414
Yatsenko A. ............................................ 339
Z
Zaki Shaeer K. ....................................... 365
Zhang Z. ................................................. 361
Zitzmann M. ........................................... 394
Zorn B. ................................................... 379
NEUES AUS DEM VERLAG
e-journal-Abo
Beziehen Sie die elektronischen Ausgaben dieser Zeitschrift hier.
Die Lieferung umfasst 6 Ausgaben pro Jahr zzgl. allfälliger Sonderhefte.
Unsere e-Journale stehen als PDF-Datei (ca. 5–10 MB) zur Verfügung und sind auf den
meisten der marktüblichen e-Book-Readern, Tablets sowie auf iPad funktionsfähig.
P
P
Bestellung e-Journal-Abo
Besuchen Sie unsere zeitschriftenübergreifende Datenbank
Bilddatenbank
P Artikeldatenbank P Fallberichte
Besuchen Sie unsere Rubrik Medizintechnik-Produkte
P
MediTEX IVF
Critex GmbH
Zestica™
Kairos Life
Science GmbH
MEA-getestete
Verbrauchsmaterialien
Gynemed GmbH
Inkubator
Labotect GmbH
Steripette
MTG Medical
Seaforia™
Origio GmbH
OvulaRing
Gynial GmbH
Philips Clear Vue
650 Mides GmbH
Xario 200
Toshiba Medical
Systems

Similar documents

×

Report this document