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https://www.readbyqxmd.com/read/27932897/effect-of-ovarian-endometrioma-on-uterine-and-ovarian-blood-flow-in-infertile-women
#1
Akmal El-Mazny, Ahmed Kamel, Wafaa Ramadan, Sherine Gad-Allah, Suzy Abdelaziz, Ahmed M Hussein
BACKGROUND: Angiogenesis has been found to be among the most important factors in the pathogenesis of endometriosis. The formation of new blood vessels is critical for the survival of newly implanted endometriotic foci. The use of 3-D power Doppler allows for the demonstration of the dynamic vascular changes that occur during the process of in vitro fertilization (IVF). We aimed to evaluate the effect of ovarian endometrioma on uterine and ovarian blood flow in infertile women. MATERIALS AND METHODS: In a case-control study at a university teaching hospital, 138 women with unilateral ovarian endometrioma scheduled for IVF were compared to 138 women with male-factor or unexplained infertility...
2016: International Journal of Women's Health
https://www.readbyqxmd.com/read/27932551/antigen-unmasking-enhances-visualization-efficacy-of-the-oocyte-activation-factor-phospholipase-c-zeta-in-mammalian-sperm
#2
Junaid Kashir, Luke Buntwal, Michail Nomikos, Brian L Calver, Panagiotis Stamatiadis, Peter Ashley, Vyronia Vassilakopoulou, David Sanders, Paul Knaggs, Evangelia Livaniou, Adnan Bunkheila, Karl Swann, F Anthony Lai
STUDY QUESTION: Is it possible to improve clinical visualization of phospholipase C zeta (PLCζ) as a diagnostic marker of sperm oocyte activation capacity and male fertility? SUMMARY ANSWER: Poor PLCζ visualization efficacy using current protocols may be due to steric or conformational occlusion of native PLCζ, hindering antibody access, and is significantly enhanced using antigen unmasking/retrieval (AUM) protocols. WHAT IS KNOWN ALREADY: Mammalian oocyte activation is mediated via a series of intracellular calcium (Ca(2+)) oscillations induced by sperm-specific PLCζ...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27932549/proteolytic-degradation-of-heat-shock-protein-a2-occurs-in-response-to-oxidative-stress-in-male-germ-cells-of-the-mouse
#3
Elizabeth G Bromfield, R John Aitken, Eileen A McLaughlin, Brett Nixon
STUDY QUESTION: Does oxidative stress compromise the protein expression of heat shock protein A2 (HSPA2) in the developing germ cells of the mouse testis? SUMMARY ANSWER: Oxidative stress leads to the modification of HSPA2 by the lipid aldehyde 4-hydroxynonenal (4HNE) and initiates its degradation via the ubiquitin-proteasome system. WHAT IS KNOWN ALREADY: Previous work has revealed a deficiency in HSPA2 protein expression within the spermatozoa of infertile men that have failed fertilization in a clinical setting...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27931129/comparison-of-intracytoplasmic-sperm-injection-with-testicular-spermatozoa-success-in-infertile-men-with-obstructive-and-non-obstructive-azoospermia-a-retrospective-analysis
#4
Ibrahim Yalcin, Bulent Berker, Yavuz Emre Sukur, Korhan Kahraman, Can Ates
The aim of this study was to compare the outcome of intracytoplasmic sperm injection (ICSI) and embryo transfer between couples with infertility due to male non-obstructive azoospermia (NOA) and obstructive azoospermia (OA). A retrospective analysis of 234 couples with azoospermia who were treated by ICSI and embryo transfer between January 2007 and October 2010 was performed. There were 61 couples in NOA group and 173 couples in OA group. Fertilization rates, pregnancy and clinical pregnancy rates were the main outcome measures...
December 8, 2016: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/27929243/epididymitis-an-overview
#5
John R McConaghy, Bethany Panchal
Inflammation of the epididymis, or epididymitis, is commonly seen in the outpatient setting. Etiology and treatment are based on patient age and the likely causative organisms. Epididymitis presents as the gradual onset of posterior scrotal pain that may be accompanied by urinary symptoms such as dysuria and urinary frequency. Physical findings include a swollen and tender epididymis with the testis in an anatomically normal position. Although the etiology is largely unknown, reflux of urine into the ejaculatory ducts is considered the most common cause of epididymitis in children younger than 14 years...
November 1, 2016: American Family Physician
https://www.readbyqxmd.com/read/27927843/risk-of-childhood-mortality-in-family-members-of-men-with-poor-semen-quality
#6
Heidi A Hanson, Erik N Mayer, Ross E Anderson, Kenneth I Aston, Douglas T Carrell, Justin Berger, William T Lowrance, Ken R Smith, James M Hotaling
STUDY QUESTION: What is the familial childhood mortality in first-degree (FDR) and second-degree relatives (SDR) of patients undergoing semen analysis (SA)? SUMMARY ANSWER: The relationship between infertility and congenital malformations (CM) in offspring is complex, with an increased risk of death due to CM in FDR, but not SDR, of men with lower semen parameters. WHAT IS KNOWN ALREADY: Semen quality is an established predictor of men's somatic health...
December 6, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27927842/parental-contributions-to-early-embryo-development-influences-of-urinary-phthalate-and-phthalate-alternatives-among-couples-undergoing-ivf-treatment
#7
Haotian Wu, Lisa Ashcraft, Brian W Whitcomb, Tayyab Rahil, Ellen Tougias, Cynthia K Sites, J Richard Pilsner
STUDY QUESTION: Are preconception urinary concentrations of phthalates and phthalate alternatives associated with diminished early stage embryo quality in couples undergoing IVF? SUMMARY ANSWER: Male, but not female, urinary concentrations of select metabolites of phthalates and phthalate alternatives are associated with diminished blastocyst quality. WHAT IS KNOWN ALREADY: Although phthalates are endocrine disrupting compounds associated with adverse reproductive health, they are in widespread use across the world...
December 7, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27921000/distress-in-infertile-males-in-manipal-india-a-clinic-based-study
#8
Ansha Patel, Podila Satya Venkata Narasimha Sharma, Pratapkumar Narayan, Binu Valsalakumari Sreekumaran Nair, Dinesh Narayanakurup, Praveena Joglekar Pai
BACKGROUND: Being infertile comes as an overwhelming realization for couples trying to conceive. In consideration of rising rates of infertility worldwide, clinicians in India have also begun exploring this field for new possibilities, development and research. The purpose of this study was to estimate the proportion and predictors of infertility specific stress in males diagnosed with primary infertility. METHODS: This cross-sectional research was conducted in an assisted reproduction center, Manipal, India, on 300 infertile married males...
October 2016: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/27920999/frequency-of-y-chromosome-microdeletions-among-iranian-infertile-men-with-azoospermia-and-severe-oligozoospermia-a-meta-analysis
#9
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
#10
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/27919644/comparative-investigation-of-methionine-and-novel-formulation-metovitan-protective-effects-in-wistar-rats-with-testicular-and-epididymal-toxicity-induced-by-anti-tuberculosis-drugs-co-administration
#11
Ganna M Shayakhmetova, Larysa B Bondarenko, Alla K Voronina, Valentina M Kovalenko
Despite clear beneficial effects, studies on the efficacy of different formulations of micronutrients and vitamins in the treatment of male infertility are still very limited. The aim of the study was to compare the efficacy of methionine and novel formulation Metovitan based on the combination of methionine, thiamine, nicotinamide, α-tocopherol acetate and zinc salt as remedies for prevention of anti-tuberculosis drugs (ATD) anti-fertility effects in male rats. ATD co-administration resulted in testicular CYP2E1, CYP2C23 and CYP3A2 transcriptional activation...
December 2, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27918162/-mutations-in-genes-affecting-fertility-of-men-current-routine-laboratory-genetic-diagnostics-and-searching-for-more-dna-segments-and-genes-influencing-spermatogenesis
#12
I Hrdlička, B Chylíková, K Veselá, M Danková, M Janků, K Řežábek, R Mihalová, F Liška
OBJECTIVE: To present the results of molecular genetics analysis in men with reproductive disorders focusing on the DNA segments and genes which affect spermatogenesis. DESIGN: Original article. SETTING: Institute of Biology and Medical Genetics of the First Faculty of Medicine and General Teaching Hospital, Prague. METHODS: One hundred and twenty-three patients identified with a fertility disorder were screened for mutations of the CFTR gene...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27916649/new-horizons-for-cystic-fibrosis-treatment
#13
REVIEW
Isabelle Fajac, Kris De Boeck
Cystic fibrosis is an inherited multi-system disease associated with chronic lung infection, malabsorption, salt loss syndromes, male infertility and leading to numerous comorbidities. The landscape in cystic fibrosis care has changed markedly with currently more adult patients than children in many countries. Over 2000 different mutations in the CFTR gene have been reported and the majority are extremely rare. Understanding how CFTR mutations translate to disturbed synthesis or function of the CFTR protein has opened the way to 'personalized' treatments to correct the basic defect...
December 1, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27915384/male-infertility-following-inguinal-hernia-repair-a-systematic-review-and-pooled-analysis
#14
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/27913189/construction-and-analysis-of-a-human-testis-sperm-enriched-interaction-network-unraveling-the-ppp1cc2-interactome
#15
Joana Vieira Silva, Sooyeon Yoon, Pieter-Jan De Bock, Alexander V Goltsev, Kris Gevaert, José Fernando F Mendes, Margarida Fardilha
BACKGROUND: Phosphoprotein phosphatase 1 catalytic subunit gamma 2 (PPP1CC2), a PPP1CC tissue-specific alternative splice restricted to testicular germ cells and spermatozoa, is essential for spermatogenesis and spermatozoa motility. The key to understand PPP1CC2 regulation lies on the characterization of its interacting partners. METHODS: We construct a testis/sperm-enriched protein interaction network and analyzed the topological properties and biological context of the network...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27905697/management-of-infertile-women-with-pelvic-endometriosis-a-literature-review
#16
Elisabeth Guinard, Pierre Collinet, Catherine Lefebvre, Geoffroy Robin, Chrystele Rubod
INTRODUCTION: Endometriosis is a condition that affects women's fertility. Several mechanisms are involved in this process: anatomical changes, mechanical, immune or inflammatory factors, ovarian reserve alterations. There are different types of strategies to treat endometriosis-related infertility: medical treatment, surgical treatment and / or techniques of medically assisted procreation. EVIDENCE ACQUISITION: We tried to consider various therapeutic strategies depending on the stage of the disease in order to offer appropriate management to patients with endometriosis who wish to become pregnant: we reviewed 58 articles between 1985 to 2016 searching in medline using the key words "endometriosis and infertility" and "infertility and endometriosis treatment"...
December 1, 2016: Minerva Ginecologica
https://www.readbyqxmd.com/read/27904151/phylogenetic-and-population-based-approaches-to-mitogenome-variation-do-not-support-association-with-male-infertility
#17
Alberto Gómez-Carballa, Jacobo Pardo-Seco, Federico Martinón-Torres, Antonio Salas
Infertility has a complex multifactorial etiology and a high prevalence worldwide. Several studies have pointed to variation in the mitochondrial DNA (mtDNA) molecule as a factor responsible for the different disease phenotypes related to infertility. We analyzed 53 mitogenomes of infertile males from Galicia (northwest Spain), and these haplotypes were meta-analyzed phylogenetically with 43 previously reported from Portugal. Taking advantage of the large amount of information available, we additionally carried out association tests between patient mtDNA single-nucleotide polymorphisms (mtSNPs) and haplogroups against Iberian matched controls retrieved from The 1000 Genomes Project and the literature...
December 1, 2016: Journal of Human Genetics
https://www.readbyqxmd.com/read/27904014/male-infertility-related-molecules-involved-in-sperm-oocyte-fusion
#18
Lisha Mou, Ni Xie
Male infertility has become a very serious problem in the human reproduction system, but the molecular mechanism of infertility remains largely unknown. Fertilization is the phenomenon in which a sperm and oocyte find each other, interact, and fuse. Sperm-oocyte fusion-related factors on the sperm side play crucial roles in male infertility. For example, IZUMO1 is well-known as a sperm protein essential for fusion of a sperm and oocyte, but its dysfunction or mutation can result in male infertility. Recent studies showed a novel sperm protein named Bactericidal/permeability-increasing protein (BPI), which takes part in the sperm-oocyte fusion process...
December 1, 2016: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/27903868/allee-effect-in-polar-bears-a-potential-consequence-of-polychlorinated-biphenyl-contamination
#19
Viola Pavlova, Jacob Nabe-Nielsen, Rune Dietz, Christian Sonne, Volker Grimm
Polar bears (Ursus maritimus) from East Greenland and Svalbard exhibited very high concentrations of polychlorinated biphenyls (PCBs) in the 1980s and 1990s. In Svalbard, slow population growth during that period was suspected to be linked to PCB contamination. In this case study, we explored how PCBs could have impacted polar bear population growth and/or male reproductive success in Svalbard during the mid-1990s by reducing the fertility of contaminated males. A dose-response relationship linking the effects of PCBs to male polar bear fertility was extrapolated from studies of the effects of PCBs on sperm quality in rodents...
November 30, 2016: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/27902973/cd147-regulates-extrinsic-apoptosis-in-spermatocytes-by-modulating-nf%C3%AE%C2%BAb-signaling-pathways
#20
Chaoqun Wang, Kin Lam Fok, Zhiming Cai, Hao Chen, Hsiao Chang Chan
CD147 null mutant male mice are infertile with arrested spermatogenesis and increased apoptotic germ cells. Our previous studies have shown that CD147 prevents apoptosis in mouse spermatocytes but not spermatogonia. However, the underlying mechanism remains elusive. In the present study, we aim to determine the CD147-regulated apoptotic pathway in mouse spermatocytes. Our results showed that immunodepletion of CD147 triggered apoptosis through extrinsic apoptotic pathway in mouse testis and spermatocyte cell line (GC-2 cells), accompanied by activation of non-canonical NFκB signaling and suppression of canonical NFκB signaling...
November 25, 2016: Oncotarget
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