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Evaluation of male infertility

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https://www.readbyqxmd.com/read/29145645/waddlia-chondrophila-a-chlamydia-related-bacterium-has-a-negative-impact-on-human-spermatozoa
#1
D Baud, N Vulliemoz, A Ammerdorffer, J Gyger, G Greub, V Castella, M Stojanov
STUDY QUESTION: What is the impact of Waddlia chondrophila, an emerging Chlamydia-related bacterium associated with miscarriage, on human spermatozoa? SUMMARY ANSWER: W. chondrophila had a negative impact on human spermatozoa (decrease in viability and mitochondrial membrane potential) and was not entirely removed from infected samples by density gradient centrifugation. WHAT IS KNOWN ALREADY: Bacterial infection or colonization might have a deleterious effect on male fertility...
November 14, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29143242/comparing-reactive-oxygen-species-and-dna-fragmentation-in-semen-samples-of-unexplained-infertile-and-healthy-fertile-men
#2
Zahra Zandieh, Akram Vatannejad, Mahmood Doosti, Sara Zabihzadeh, Mahnaz Haddadi, Leila Bajelan, Batool Rashidi, Saeid Amanpour
BACKGROUND: Male factor infertility has increased to more than 40% during the last decade. About 30% of these couples are diagnosed with unexplained infertility. In fact, reactive oxygen species (ROS), especially superoxide anion (O2(-)·) and hydrogen peroxide (H2O2), play a crucial role in regulation of physiological and pathological processes in spermatozoa. Moreover, since the diagnosis of unexplained infertility just through semen analysis is a matter of much controversy; we aimed to evaluate the levels of ROS and sperm DNA fragmentation in the semen samples of unexplained infertile and fertile control couples...
November 15, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29134981/biochemical-hormonal-and-histological-changes-in-prostate-of-wistar-rats-following-long-term-streptozotocin-induced-diabetes-mellitus
#3
Bosede Popoola, Olivia Ashefor, Olubukola Akanni, Oluwatosin Adaramoye
Diabetes mellitus (DM) is characterized by hyperglycemia and endocrine disorder. Diabetes mellitus is knownto promote male infertility by affecting sperm quality through altered steroidogenesis. The role of prostatic fluid in maintenance of sperm quality have been established. However, the effect of DM on prostate health is poorly understood.This study was designed to investigate the biochemical, hormonal and histological changes in prostate of male Wistar ratsafter 3- and 5-months DM. Twenty-six adult male Wistar rats were assigned into three groups...
June 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/29133304/stem-cells-in-vitro-gametogenesis-and-male-fertility
#4
Go Nagamatsu, Katsuhiko Hayashi
Reconstitution in culture of biological processes, such as differentiation and organization, is a key challenge in regenerative medicine, and one in which stem cell technology plays a central role. Pluripotent stem cells (PSCs) and spermatogonial stem cells (SSCs) are useful materials for reconstitution of germ cell development in vitro, as they are capable of differentiating into gametes. Reconstitution of germ cell development, termed in vitro gametogenesis, will provide an experimental platform for a better understanding of germ cell development, as well as an alternative source of gametes for reproduction, with the potential to cure infertility...
November 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29124647/improvement-of-semen-parameters-after-antibiotic-therapy-in-asymptomatic-infertile-men-infected-with-mycoplasma-genitalium
#5
Mohammad Hossein Ahmadi, Akbar Mirsalehian, Mohammad Ali Sadighi Gilani, Abbas Bahador, Malihe Talebi
OBJECTIVES: To elucidate the association between asymptomatic infections caused by Mycoplasma genitalium and male infertility, and evaluate the role of antibiotic therapy in treatment of this failure. METHODS: A total of 165 infertile males having abnormal semen parameters (study group) and 165 healthy fertile men (control group) were included. Semen samples were taken from all participants and after analyzing for semen parameters, undergone real-time PCR, microbial culture, and reactive oxygen species (ROS), as well as total antioxidant capacity (TAC) assays...
November 9, 2017: Infection
https://www.readbyqxmd.com/read/29124237/oxidation-reduction-potential-as-a-new-marker-for-oxidative-stress-correlation-to-male-infertility
#6
REVIEW
Ashok Agarwal, Albert Danh Bui
Male infertility affects men worldwide. Oxidative stress (OS), characterized by an overabundance of reactive oxygen species (ROS) or a deficiency of antioxidants, is one of the major causes of male infertility. OS causes damage at the molecular level, which impairs lipids, proteins, and DNA. The cyclic cascade of redox reactions weakens sperm function which leads to poor semen parameters and eventual sterility. There is a need for advanced diagnostic tests that can quickly and accurately detect OS. Most commonly used assays can only measure single constituents of OS...
November 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29121862/human-papillomavirus-in-semen-and-the-risk-for-male-infertility-a-systematic-review-and-meta-analysis
#7
Zhangyan Lyu, Xiaoshuang Feng, Ni Li, Wei Zhao, Luopei Wei, Yuheng Chen, Wenjing Yang, Hongxia Ma, Bing Yao, Kai Zhang, Zhibin Hu, Hongbing Shen, Dong Hang, Min Dai
BACKGROUND: Human papillomavirus (HPV) is one of the most prevalent sexually transmitted viruses. Despite the increasing evidence of HPV prevalence in semen, the worldwide distribution of HPV types in semen and risk for male infertility remain inconclusive. METHODS: Four electronic databases were searched for English language studies conducted between January 1990 and December 2016 that reported HPV DNA prevalence in semen. Based on the PRISMA guidelines, HPV prevalence was estimated among general population and fertility clinic attendees, respectively, and heterogeneity testing was performed using Cochran's Q and I (2) statistics...
November 9, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29110621/functional-germ-cells-from-non-testicular-adult-stem-cells-a-dream-or-reality
#8
Mohammad Ghasemzadeh-Hasankolaei, Mohammadreza Baghaban Eslaminejad, Maryam Ghasemzadeh-Hasankolaei
BACKGROUND: Some research studies provided evidence for the differentiation capacity of adult stem cells (ASCs) into germ cells (GCs). Since the generation of GCs from stem cells (SCs) has been proposed as a potential way for treatment of infertility, many research groups, have begun their creative studies on generation of new GCs both in vitro and in vivo, and utilized different ASC types such as bone marrow mesenchymal stem cells (BM-MSCs), skin stem cells, pancreatic stem cells, and adipose tissue MSCs...
November 6, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29110319/effects-of-chlamydia-trachomatis-infection-on-sperm-chromatin-condensation-and-dna-integrity
#9
L Dehghan Marvast, A R Talebi, J Ghasemzadeh, A Hosseini, A A Pacey
The present study was performed to investigate the relation of Chlamydia trachomatis infection to sperm chromatin/DNA integrity in a population of infertile men (male partner of infertile couples) from Iran. Blood, semen and first-void urine samples were obtained from 250 infertile men. Data were analysed with regard to the results of (i) serological analysis for specific antibodies to C. trachomatis in serum; (ii) the presence of C. trachomatis and DNA in first-void urine; and (iii) in the semen sample of the male partner, in addition to sperm analysis, four different tests (aniline blue, chromomycin A3, acridine orange and TUNEL) were used to detect sperm chromatin and DNA abnormalities...
November 6, 2017: Andrologia
https://www.readbyqxmd.com/read/29102298/orchidopexy-in-children-with-prader-willi-syndrome-results-of-a-long-term-follow-up-study
#10
Maurizio Pacilli, Yves Heloury, Mike O'Brien, Tess Lionti, Margaret Rowell, John Hutson
INTRODUCTION: Prader-Willi syndrome (PWS) is a rare (1:20.000) genetic condition affecting both males and females. Among other features, in boys, the syndrome is characterized by cryptorchidism in 86-100% of cases, hypogonadism, delayed puberty and infertility. The aim of the present study is to appraise the results of orchidopexy in this selected population of children. STUDY DESIGN: A follow-up study of children with PWS treated for undescended testes at a single institution over a 20-year period was performed...
October 16, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29099693/comparative-analysis-of-sperm-selection-methods-before-the-intra-cytoplasmic-sperm-injection-procedure
#11
O Lohinova, V Pitko, N Sinilo, Ya Cherkashyna, N Hanzha
In recent years, one of the methods of assisted reproductive technologies has become increasingly widespread, namely the ICSI procedure (ICSI - Intra Cytoplasmic Sperm Injection). This method is based on artificial introduction of the spermatozoon into the cytoplasm of the oocyte. However, the complexity of this method is that the choice of a morphologically and biochemically mature spermatozoon becomes subjective. However, not so long ago, an innovative method for selecting mature, ready-to-fertilize spermatozoa was proposed...
October 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29082942/sperm-dna-fragmentation-for-the-evaluation-of-male-infertility-clinical-algorithms
#12
EDITORIAL
Ahmad Majzoub, Ashok Agarwal, Sandro C Esteves
No abstract text is available yet for this article.
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29082368/impact-of-age-on-semen-parameters-in-male-partners-of-infertile-couples-in-a-rural-tertiary-care-center-of-central-india-a-cross-sectional-study
#13
Naina Kumar, Amit K Singh, Ajay R Choudhari
BACKGROUND: High rates of sub-fertility and adverse pregnancy outcomes were seen after age 40. In contrast to oogenesis, spermatogenesis continues in elderly men. OBJECTIVE: To retrospectively study the impact of aging on semen parameters in male partners of infertile couples in the rural area of developing country over 10 years and to find out whether aging affects male factor fertility and various semen parameters in this part of developing country. MATERIALS AND METHODS: In this cross sectional study, the laboratory semen analysis records of 1219 male partners of infertile couples of a rural tertiary care center of Central India in a 10-year period from January 2005 to December 2014 were evaluated into 5 groups based on men age: Group 1: 21-28 yr (n=57); group 2: 29-35 yr (n=450); group 3: 36-42 yr (n=532); group 4: 43-49 yr (n=165), and group 5: 50-60 yr (n=15)...
August 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29082207/a-strengths-weaknesses-opportunities-threats-swot-analysis-on-the-clinical-utility-of-sperm-dna-fragmentation-testing-in-specific-male-infertility-scenarios
#14
Sandro C Esteves, Ashok Agarwal, Chak-Lam Cho, Ahmad Majzoub
BACKGROUND: Sperm DNA fragmentation (SDF) is recognized as a leading cause of male infertility because it can impair the paternal genome through distinct pathophysiological mechanisms. Current evidence supports SDF as a major factor in the pathophysiology of several conditions, including varicocele, unexplained infertility, assisted reproductive technology failure, and environmental lifestyle factors, although the mechanisms involved have not been fully described yet. Measurement of the levels of DNA fragmentation in semen provides valuable information on the integrity of paternal chromatin and may guide therapeutic strategies...
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29082206/the-society-for-translational-medicine-clinical-practice-guidelines-for-sperm-dna-fragmentation-testing-in-male-infertility
#15
REVIEW
Ashok Agarwal, Chak-Lam Cho, Ahmad Majzoub, Sandro C Esteves
Sperm DNA fragmentation (SDF) testing has been emerging as a valuable tool for male fertility evaluation. While the essential role of sperm DNA integrity in human reproduction was extensively studied, the clinical indication of SDF testing is less clear. This clinical practice guideline provides recommendations of clinical utility of the test supported by evidence. It is intended to serve as a reference for fertility specialists in identifying the circumstances in which SDF testing should be of greatest clinical value...
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29082205/sperm-dna-fragmentation-testing-a-cross-sectional-survey-on-current-practices-of-fertility-specialists
#16
Ahmad Majzoub, Ashok Agarwal, Chak-Lam Cho, Sandro C Esteves
BACKGROUND: Sperm DNA fragmentation (SDF) testing has been recognized as a valuable tool in the evaluation of infertile men. Despite that, its routine use in clinical practice is still hampered by the lack of understanding of the specific clinical scenarios where SDF testing is most beneficial. The aim of this study was to investigate fertility specialists evaluation of infertility of SDF testing in the context of male infertility evaluation and assisted reproductive technology. METHODS: A questionnaire was developed to survey the major aspects of SDF testing and was mailed to specialists with demonstrated clinical experience in the field of infertility...
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29082177/evaluation-of-sperm-dna-structure-fragmentation-and-decondensation-an-essential-tool-in-the-assessment-of-male-infertility
#17
COMMENT
Yves Menezo, Patrice Clement, Edouard Amar
No abstract text is available yet for this article.
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29081016/a-review-of-imaging-modalities-used-in-the-diagnosis-and-management-of-scrotal-trauma
#18
REVIEW
Alexis Wang, Ian Stormont, M Minhaj Siddiqui
Genitourinary tract injuries account for 3 to 10% of trauma patients, and scrotal trauma is particularly prevalent in males 10 to 30 years of age. Prompt diagnosis and timely surgical intervention are essential to prevent future complications of infertility, delayed orchiectomy, infection, and testicular atrophy. While clinical examination provides valuable information, it may be inconclusive due to soft tissue swelling and difficult to perform due to testicular pain with palpation. Conversely, testicular rupture does not always present with pain or tenderness...
October 28, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/29074361/a-clinical-assay-for-reactive-oxygen-species-ready-for-primetime
#19
Christopher J De Jonge
Reactive oxygen species (ROS) have been demonstrated to have damaging effects on human sperm function. The measurement of ROS as an adjunct to traditional semen analysis has clinical relevance as part of the diagnosis of male infertility. The assay best suited to the clinical laboratory environment for detecting ROS generation remains somewhat controversial. A recent report on a multicenter study evaluating the reduction of nitroblue tetrazolium (NBT) to formazan precipitate as an indirect reporter of ROS-generating activity in spermatozoa, seminal plasma and semen has received a critique raising questions as to the sensitivity and specificity of the assay for detecting ROS...
October 4, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29070465/-impact-of-golph3-expression-in-cumulus-granulosa-cells-on-outcomes-of-intracytoplasmic-sperm-injection
#20
Dian-Liang Lin, Song Quan, Yue-Fan Kang, Ai-Li Yu, Yuan Lin
OBJECTIVE: To evaluate the impact of GOLPH3 expression in cumulus granulosa cells on the outcomes of intracytoplasmic sperm injection (ICSI). METHODS: A total of 119 women receiving ICSI due to male infertility at our center between April, 2012 and June, 2014 were enrolled in the study. Cumulus granulosa cells were collected from the women for detection of GOLPH3 expressions using immunocytochemistry, Western blotting, and real-time PCR. GOLPH3 expression rate was compared between women with and without clinical pregnancy following ICSI, and the associations of GOLPH3 expression with the laboratory indicators of ICSI outcomes were assessed...
October 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
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