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Azoospermia

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https://www.readbyqxmd.com/read/27921326/correlation-of-genetic-results-with-testicular-histology-hormones-and-sperm-retrieval-in-nonobstructive-azoospermia-patients-with-testis-biopsy
#1
W Liu, X Gao, G Ma, L Yan, T Chen, T Li, R-M Yu, J-L Ma
To investigate the frequency and types of genetic results in different testicular histology of patients with nonobstructive azoospermia (NOA), and correlated with hormones and sperm retrieval (SR), a retrospective study was conducted in 286 Chinese NOA patients who underwent testis biopsy and 100 age-matched fertile men as the control group. Chromosome karyotype analyses were performed by the peripheral blood chromosome G-band detection method. Screening of Y chromosome microdeletions of azoospermia factor (AZF) region was performed by polymerase chain reaction (PCR) amplification of 11 sequence-tagged sites (STS)...
December 6, 2016: Andrologia
https://www.readbyqxmd.com/read/27920999/frequency-of-y-chromosome-microdeletions-among-iranian-infertile-men-with-azoospermia-and-severe-oligozoospermia-a-meta-analysis
#2
Ehsan Yousefi-Razin, Mohammad Javad Nasiri, Mir Davood Omrani
BACKGROUND: While multiple factors can contribute to male infertility, genetic factors, such as chromosomal disorders or Y-chromosome microdeletion, are responsible for about 10% of male infertility. Considering the role of Y-chromosome micro-deletions in men with oligozoospermia who volunteer for in vitro fertilization (IVF), the prevalence of such microdeletions in each particular community needs to be exactly determined. Hence, the present study attempted to analyze the available literature on the frequency of chromosome microdeletion among Iranian infertile men...
October 2016: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/27920841/wolffian-origin-of-vagina-unfolds-the-embryopathogenesis-of-ohvira-obstructed-hemivagina-and-ipsilateral-renal-anomaly-syndrome-and-places-ohvira-as-a-female-counterpart-of-zinner-syndrome-in-males
#3
Yashant Aswani, Ravi Varma, Pradeep Choudhary, Reeta B Gupta
BACKGROUND: The classical theory of Müllerian origin of upper vagina fails to explain complex urogenital malformations like OHVIRA syndrome; the Acien's hypothesis, however, unravels the hidden embryopathogenesis. As per Acien, Wolffian (mesonephric) ducts instead of Müllerian ducts and sinovaginal bulbs, give rise to the vagina. The new hypothesis, however, retains the concept of origin of the ureters (with ureters inducing renal development) by the former and the uterus by Müllerian ducts...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27920259/hormone-sensitive-lipase-deficiency-alters-gene-expression-and-cholesterol-content-of-mouse-testis
#4
Feng Wang, Zheng Chen, Xiaofang Ren, Ye Tian, Fucheng Wang, Chao Liu, Pengcheng Jin, Zongyue Li, Feixiong Zhang, Baochang Zhu
Hormone-sensitive lipase-knockout (HSL-/-) mice exhibit azoospermia for unclear reasons. To explore the basis of sterility, we performed the following three experiments. First, HSL protein distribution in the testis was determined. Next, transcriptome analyses were performed on the testes of three experimental groups. Finally, the fatty acid and cholesterol levels in the testes with three different genotypes studied were determined. We found that the HSL protein was present from spermatocyte cells to mature sperm acrosomes in wild-type (HSL+/+) testes...
February 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27915384/male-infertility-following-inguinal-hernia-repair-a-systematic-review-and-pooled-analysis
#5
REVIEW
A Kordzadeh, M O Liu, N V Jayanthi
INTRODUCTION: The aim of this systematic review is to establish the clinical impact of open (mesh and/or without mesh) and laparoscopic hernia repair (transabdominal pre-peritoneal (TAP) and/or totally extra-peritoneal (TEP)) on male fertility. The incidence of male infertility following various types of inguinal hernia repair is currently unknown. The lack of high-quality evidence has led to various speculations, suggestions and reliance on anecdotal experience in the clinical practice...
December 3, 2016: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/27888149/in-patients-with-obstructive-azoospermia-testicular-spermatozoa-are-of-better-quality-than-epididymal-spermatozoa
#6
I Hammoud, M Bailly, M Bergere, R Wainer, V Izard, F Vialard, J Selva, F Boitrelle
OBJECTIVE: To assess sperm quality as a function of the sampling site (testis or epididymis) in obstructive azoospermia (OA). MATERIALS AND METHODS: DNA fragmentation rates in spermatozoa sampled from the testis and epididymis (from patients with different aetiologies of OA) were assessed in a dUTP nick end labelling (TUNEL) assay. RESULTS: Twenty-one OA patients were included: 5 had congenital bilateral absence of the vas deferens, 8 had genital tract infections and 8 had idiopathic OA...
November 22, 2016: Urology
https://www.readbyqxmd.com/read/27887012/epididymal-papillary-cystadenocarcinoma-metastasising-to-the-testis-in-a-patient-with-infertility-managed-with-onco-microtese
#7
Nisha Pindoria, Yurina Miki, Andrea Tay, Ashish Chandra, Christopher Anderson, Evangelos Zacharakis, Majed Shabbir
Papillary cystadenomas of the epididymis are known to occur in association with Von Hippel-Lindau (VHL) disease. The development of a papillary cystadenocarcinoma, its malignant counterpart, is rare with only a few sporadic cases reported in the literature. Metastatic deposits are exceedingly uncommon; in fact, only a single case report has documented metastases to the paraureteral region, but metastases to the testis have never been reported. A 43-year-old gentleman with VHL disease presented with non-obstructive azoospermia, a right epididymal mass, and an atrophic surgically corrected undescended left testis...
November 24, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27868267/reduced-microrna-188-3p-expression-contributes-to-apoptosis-of-spermatogenic-cells-in-patients-with-azoospermia
#8
Wen-Yan Song, Hui Meng, Xue-Gai Wang, Hai-Xia Jin, Gui-Dong Yao, Sen-Lin Shi, Liang Wu, Xiang-Yang Zhang, Ying-Pu Sun
BACKGROUND AND AIMS: Human mutL homologl (MLH1) works coordinately in sequential steps to initiate repair of DNA mismatches, and aberrant MLH1 expression is related to spermatogenetic malfunction. In the present study, MLH1 expression in patients with azoospermia was investigated, and moderating effects of miR-188-3p on MLH1 expression and spermatogenesis were identified. METHODS: Testicular tissues from 16 patients with obstructive azoospermia (OA) and non-obstructive azoospermia (NOA), and tissues of eight healthy patients were collected...
November 21, 2016: Cell Proliferation
https://www.readbyqxmd.com/read/27865415/biosterilant-effects-of-bacillus-thuringiensis-kurstaki-hd-73-extract-on-male-wistar-albino-rats
#9
Vikas Kumar Roy, Vanlal Peki, Maibam Sunita Devi, Sanasam Sanjeev, Maurya Khusboo, R Zothansanga, Kalibulla Syed Ibrahim, Nachimuthu Senthil Kumar, Guruswami Gurusubramanian
Chemosterilants have long been used in sterilization programs for managing pet, stray, and wild animals but adverse effects such as trauma, incomplete responses to treatment, and complete abolition of gonadal sources of testosterone often occurs. This study describes the biosterilant effects of administering three doses of Bacillus thuringiensis kurstaki HD-73 (Bt 5, 50, and 250 mg/kg; 20 rats/dose) extract in adult male Wistar albino rats on testicular parameters, function, histology, and a number of biochemical markers of overall health, free radical production, and cell proliferation...
January 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/27864361/causes-of-male-infertility-a-9-year-prospective-monocentre-study-on-1737-patients-with-reduced-total-sperm-counts
#10
M Punab, O Poolamets, P Paju, V Vihljajev, K Pomm, R Ladva, P Korrovits, M Laan
STUDY QUESTION: What are the primary causes of severe male factor infertility? SUMMARY ANSWER: Although 40% of all patients showed primary causes of infertility, which could be subdivided into three groups based on the severity of their effect, ~75% of oligozoospermia cases remained idiopathic. WHAT IS KNOWN ALREADY: There are few large-scale epidemiological studies analyzing the causes of male factor infertility. STUDY DESIGN, SIZE, DURATION: A prospective clinical-epidemiological study was conducted at the Andrology Centre, Tartu University Hospital between 2005 and 2013, recruiting male partners of couples failing to conceive a child for over ≥12 months...
November 17, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27862170/multicentre-study-of-y-chromosome-microdeletions-in-1-808-chinese-infertile-males-using-multiplex-and-real-time-polymerase-chain-reaction
#11
X-B Zhu, Y-H Gong, J He, A-L Guo, E-L Zhi, J-E Yao, B-S Zhu, A-J Zhang, Z Li
Azoospermia factor (AZF) genes on the long arm of the human Y chromosome are involved in spermatogenesis, and microdeletions in the AZF region have been recognised to be the second major genetic cause of spermatogenetic failure resulting in male infertility. While screening for these microdeletions can avoid unnecessary medical and surgical treatments, current methods are generally time-consuming. Therefore, we established a new method to detect and analyse microdeletions in the AZF region quickly, safely and efficiently...
November 10, 2016: Andrologia
https://www.readbyqxmd.com/read/27860441/effects-of-human-chorionic-gonadotropin-on-testicular-interstitial-tissues-in-men-with-non-obstructive-azoospermia
#12
S Oka, K Shiraishi, H Matsuyama
Non-obstructive azoospermia is a severe condition because spermatogenesis per se is disrupted. Although microdissection testicular sperm extraction is the standard therapy for non-obstructive azoospermia, sperm retrieval is unsuccessful in approximately 50% of patients. For these patients, we conducted human chorionic gonadotropin-based salvage hormonal therapy, and sperm retrieval was possible in 10-20% of patients. The objectives of this study were to assess the changes in interstitial lesions in patients with non-obstructive azoospermia and to evaluate the effects of human chorionic gonadotropin on these tissues...
November 16, 2016: Andrology
https://www.readbyqxmd.com/read/27853024/extraskeletal-osteosarcoma-of-the-orbit-a-clinicopathologic-case-report-and-review-of-literature
#13
V M D S de Maeyer, P A F A Kestelyn, Akash D Shah, C M Van Den Broecke, H G N Denys, C E Decock
Primary extraskeletal osteosarcoma (EOS) is an extremely rare malignancy. In this report, the clinical course of a 32-year-old man presenting with proptoses is described. Medical history included Hirschsprung disease (HD), horseshoe kidney, azoospermia, and vertebral anomalies. Imaging of the orbit showed an oval, well-defined heterogeneous mass adjacent to the lateral wall of the orbit. The patient underwent a lateral orbitotomy and complete excision of the mass. The mass was not attached to the bone. Histopathologic and immunohistochemical examination confirmed the diagnosis of an EOS...
September 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27852078/clomiphene-citrate-versus-letrozole-for-ovarian-stimulation-in-therapeutic-donor-sperm-insemination
#14
Hady El Hachem, Roland Antaki, Camille Sylvestre, Isaac-Jacques Kadoch, Louise Lapensée, Pierre Emmanuel Bouet
AIM: To compare clomiphene citrate (CC) and letrozole for ovarian stimulation (OS) in therapeutic donor sperm insemination (TDI) cycles. METHODS: Retrospective cohort study between January 2011 and June 2014 at a University-affiliated private IVF clinic in Montreal, Canada. 257 normo-ovulatory women ≤40 years of age with no history of infertility undergoing 590 TDI cycles in the absence of a male partner (single women and same-sex couples) or azoospermia were included...
November 17, 2016: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/27834916/systematic-analysis-of-protein-interaction-network-associated-with-azoospermia
#15
Soudabeh Sabetian, Mohd Shahir Shamsir
Non-obstructive azoospermia is a severe infertility factor. Currently, the etiology of this condition remains elusive with several possible molecular pathway disruptions identified in the post-meiotic spermatozoa. In the presented study, in order to identify all possible candidate genes associated with azoospermia and to map their relationship, we present the first protein-protein interaction network related to azoospermia and analyze the complex effects of the related genes systematically. Using Online Mendelian Inheritance in Man, the Human Protein Reference Database and Cytoscape, we created a novel network consisting of 209 protein nodes and 737 interactions...
November 10, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27833987/pregnancy-resulting-from-imsi-after-testicular-biopsy-in-a-patient-with-obstructive-azoospermia
#16
Constantin Cristian Văduva, Carmen Constantinescu, Mihaela Mirela Radu, Alice Roxana Văduva, Andrei Pănuş, Mihaela Ţenovici, Damian DiŢescu, Dinu Florin Albu
In this article, we report a case of pregnancy obtained in an infertile couple diagnosed with severe male factor infertility. The couple attended for fertility examination reporting a history of 10 years of infertility. The cause of infertility was obstructive azoospermia. The treatment consists of in vitro fertilization (IVF). The ovarian stimulation of female patient was done with antagonist protocol and after ovarian puncture was obtained nine oocytes. The urologist performed testicular sperm extraction (TESE)...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27833751/leydig-cell-tumor-of-the-testis-with-azoospermia-and-elevated-delta4-androstenedione-case-report
#17
J Prasivoravong, A-L Barbotin, A Derveaux, C Leroy, X Leroy, P Puech, V Mitchell, F Marcelli, J-M Rigot
BACKGROUND: Secreting interstitial cell (Leydig cell) tumors are rare. In adults, the clinical picture and steroid levels are variable. CASE PRESENTATION: This paper presents a case of left testicular tumor, showing azoospermia with normal serum level of total testosterone, collapsed FSH and LH, and high delta4 androstenedione. Histopathological investigation revealed a Leydig cell tumor. TESE allowed spermatozoa extraction and freezing. Testicular histology found hypospermatogenesis and germ-cell aplasia with interstitial fibrosis...
2016: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/27815482/mutations-of-two-major-coagulation-factors-are-not-associated-with-male-infertility
#18
Christos Yapijakis, Nikos Pachis, Dimitris Avgoustidis, Mary Adamopoulou, Zoe Serefoglou
BACKGROUND: Thrombophilia-related mutations, such as coagulation factor V Leiden and factor II (G20210A), have been associated with female infertility due to spontaneous abortions during pregnancy. The possible role of mutations of these two factors in male infertility has not been studied to date. MATERIALS AND METHODS: A total of 208 unrelated Greek men were investigated, including 108 infertile men with idiopathic oligozoospermia, azoospermia, and oligozoospermia of various etiologies, as well as 100 fertile male controls...
November 2016: In Vivo
https://www.readbyqxmd.com/read/27813606/chromosome-7-translocation-breakpoints-in-male-carriers-clinical-features-and-implications-for-genetic-counseling
#19
R X Wang, H G Zhang, Y Pan, J H Zhu, F G Yue, L T Xue, R Z Liu
Balanced reciprocal translocations are associated with reproductive failure. Some reciprocal translocation carriers exhibit azoospermia or oligozoospermia, and an association exists between these chromosomal abnormalities and recurrent abortion. Previous reports have indicated the involvement of chromosome 7 translocations in male infertility and recurrent miscarriage. A translocation breakpoint can occur within an important gene, interrupting its structure and leading to male infertility. However, clinical characteristics resulting from chromosome 7 translocation breakpoints have not been studied...
October 17, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27812445/relationship-between-azfc-deletions-and-testicular-histology-in-infertile-south-chinese-men-with-azoospermia-and-severe-oligospermia
#20
Quan Li, Ning-Hong Song, Wen-Zhou Cao, Qiang Shao, Jian-Jun Xie, Chao Liu, Ya-Min Wang, Hua Shen
BACKGROUND: The AZFc deletion has been associated with wide range of phenotypes including complete absence of germ cells in the testes (SCOS), reduction in germ cells hypospermatogenesis, and maturation arrest. The main objective of this study was to evaluate the relationship between AZFc microdeletions and testicular histology in South Chinese men with azoospermia or severe oligospermia. FINDINGS: 338 men presenting with idiopathic non-obstructive azoospermia or severe oligospermia were evaluated between March 2012 and April 2015...
2016: SpringerPlus
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