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Male infertility

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https://www.readbyqxmd.com/read/29774489/the-role-of-lifestyle-in-male-infertility-diet-physical-activity-and-body-habitus
#1
REVIEW
Russell P Hayden, Ryan Flannigan, Peter N Schlegel
PURPOSE OF REVIEW: Increasing attention to primary and secondary prevention of male infertility through modifiable lifestyle factors has gained traction amongst both patients and infertility specialists. In this review, the available evidence of modifiable lifestyle choices, specifically diet, physical activity, and body habitus, are evaluated. RECENT FINDINGS: Studies examining diet, exercise/physical activity, and body habitus are characterized by conflicting conclusions, difficult confounders, and imperfect end points to judge male reproductive potential...
May 17, 2018: Current Urology Reports
https://www.readbyqxmd.com/read/29774447/infertility-in-the-aging-male
#2
REVIEW
Daniel J Mazur, Larry I Lipshultz
PURPOSE OF REVIEW: In many countries, the average age of paternity is rising. The negative effect of older age on fertility in women is well documented; however, less is known about the impact of paternal age on fecundity. In this review, we summarize the current knowledge of how paternal age affects semen parameters, reproductive success, and offspring health. RECENT FINDINGS: Contemporary evidence confirms that aged men have worse semen parameters, including overall negative changes in sperm genetics...
May 17, 2018: Current Urology Reports
https://www.readbyqxmd.com/read/29774436/management-of-erectile-dysfunction-and-infertility-in-the-male-spinal-cord-injury-patient
#3
REVIEW
Michael Fenstermaker, James M Dupree, Miriam Hadj-Moussa, Dana A Ohl
PURPOSE OF REVIEW: Men with spinal cord injury (SCI) commonly suffer from erectile dysfunction and ejaculatory dysfunction. The literature regarding the causes and treatment of these two important problems was reviewed. RECENT FINDINGS: Many of the erectile dysfunction treatments applied to able bodied individuals are also useful in the SCI population, although there are differences in the goals and results of treatment. Ejaculatory dysfunction can be treated with either penile vibratory stimulation or electroejaculation with high success rates...
May 17, 2018: Current Urology Reports
https://www.readbyqxmd.com/read/29774101/qilin-pills-alleviate-oligoasthenospermia-by-inhibiting-bax-caspase-9-apoptosis-pathway-in-the-testes-of-model-rats
#4
Kaishu Zhang, Zhengyan Ge, Longlong Fu, Qi An, Fang Zhou, Ying Guo, Xiaowei Wang, Wenhong Lu, Xiaowei Liang, Shusong Wang, Xuejun Shang, Yiqun Gu
At present, the treatment of oligoasthenospermia with western medicine is ineffective. Qilin pill (QLP) is a Chinese traditional medicine for treating male infertility. Recent multicenter clinical studies in China reported that QLPs markedly improved sperm quality. However, the mechanism of action of QLPs on oligoasthenospermia remains unknown. In this study, we investigated the mechanistic basis for improvement of semen parameters and reversal of testis damage by QLPs in a rat model of oligoasthenospermia induced by treatment with tripterygium glycosides (TGs) (40 mg/kg) once daily for 4 weeks...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29770466/comparative-evaluation-of-the-effects-of-withania-somnifera-with-pentoxifylline-on-the-sperm-parameters-in-idiopathic-male-infertility-a-triple-blind-randomised-clinical-trial
#5
R Nasimi Doost Azgomi, H Nazemiyeh, H Sadeghi Bazargani, S M B Fazljou, F Nejatbakhsh, A Moini Jazani, Y Ahmadi AsrBadr, A Zomorrodi
In this triple-blind randomised clinical trial, we compared the effects of Withania somnifera and pentoxifylline on the sperm parameters in idiopathic male infertility. One hundred infertile male patients were randomly allocated into either W. somnifera or pentoxifylline groups. Patients in the herbal group received six capsules containing 5 g/daily of W. somnifera root, and subjects in the pentoxifylline group received six capsules containing 800 mg/daily of pentoxifylline and placebo for 90 days. Sperm parameters were analysed at the beginning and end of the study...
May 16, 2018: Andrologia
https://www.readbyqxmd.com/read/29769570/in-utero-and-postnatal-exposure-to-high-fat-high-sucrose-diet-suppressed-testis-apoptosis-and-reduced-sperm-count
#6
Jiude Mao, Kathleen A Pennington, Omonseigho O Talton, Laura C Schulz, Miriam Sutovsky, Yan Lin, Peter Sutovsky
Obesity affects male fertility and maternal diabetes affects the offspring sperm epigenome. However, the effects of in utero exposure to maternal glucose intolerance in combination with postnatal high fat, high sucrose (HFHS) diet consumption on offspring spermatogenesis is not clear. The present study was designed to test these effects. One week before and during pregnancy, dams were fed either control or HFHS diet to induce gestational glucose intolerance, and returned to standard diet during lactation. Male offspring from each maternal group were split into control and HFHS-fed groups for eight weeks prior to sacrifice at 11, 19 or 31 weeks of age, and reproductive tissues were harvested for analysis of testicular germ cell apoptosis and sperm output...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29766151/the-effect-of-supernatant-product-of-adipose-tissue-derived-mesenchymal-stem-cells-and-density-gradient-centrifugation-preparation-methods-on-pregnancy-in-intrauterine-insemination-cycles-an-rct
#7
Hoda Fazaeli, Faezeh Davoodi, Naser Kalhor, Reza Tabatabaii Qomi
Background: One of the most important involved factors in pregnancy occurrence following intrauterine insemination (IUI) is semen sample preparation. Recently, supernatant product of adipose tissue derived mesenchymal stem cells (SPAS) method has been shown to improve semen parameters. Objective: To compare the effect of preparation methods in order to IUI, SPAS and density gradient centrifugation (DGC). Materials and Methods: This trial was done on 80 couples with male factor infertility who attend jihad daneshgahi infertility treatment center of Qom province, undergoing ovarian stimulation and IUI cycle...
March 2018: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29766145/basic-and-clinical-genetic-studies-on-male-infertility-in-iran-during-2000-2016-a-review
#8
REVIEW
Sahar Moghbelinejad, Hossein Mozdarania, Pegah Ghoraeian, Reihaneh Asadi
The male factor contributes to 50% of infertility. The cause of male infertility is idiopathic and could be congenital or acquired. Among different factors which are involved in idiopathic male infertility, genetic factors are the most prevalent causes of the disease. Considering, the high prevalence of male infertility in Iran and the importance of genetic factors in the accession of it, in this article we reviewed the various studies which have been published during the last 17 yr on the genetic basis of male infertility in Iran...
March 2018: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29765499/effect-of-heat-stress-on-sperm-dna-protamine-assessment-in-ram-spermatozoa-and-testicle
#9
Thais Rose Dos Santos Hamilton, Adriano Felipe Perez Siqueira, Letícia Signori de Castro, Camilla Mota Mendes, Juliana de Carvalho Delgado, Patrícia Monken de Assis, Leonardo Pereira Mesquita, Paulo César Maiorka, Marcílio Nichi, Marcelo Demarchi Goissis, José Antonio Visintin, Mayra Elena Ortiz D Ávila Assumpção
Sperm DNA fragmentation is considered one of the main causes of male infertility. The most accepted causes of sperm DNA damage are deleterious actions of reactive oxygen species (ROS), defects in protamination, and apoptosis. Ram sperm are highly prone to those damages due to the high susceptibility to ROS and to oxidative stress caused by heat stress. We aimed to evaluate the effects of heat stress on the chromatin of ejaculated and epididymal sperm and the activation of apoptotic pathways in different cell types in ram testis...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29765438/decline-in-ovarian-reserve-may-be-an-undiagnosed-reason-for-unexplained-infertility-a-cohort-study
#10
Burak Yücel, Sefa Kelekci, Emine Demirel
Introduction: Unexplained infertility refers to the absence of a definable cause for a couple's failure to achieve pregnancy. Reproductive aging plays a role in pathogenesis of unexplained infertility. We investigated the results of ovarian reserve tests in unexplained infertility. Material and methods: The patients were divided into two groups: unexplained infertility ( n = 148) and male factor infertility ( n = 112). Follicle-stimulating hormone, estradiol, inhibin b levels and anti-Müllerian hormone levels were evaluated...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29759049/klinefelter-s-syndrome-with-lupus-encephalitis-and-retroperitoneal-teratoma
#11
C Ng Wq, S E Eide, Huang J, Khor Ym
We report a case of a middle-aged male who presented with pyrexia of unknown origin, oral ulcers, rash and bicytopenia. His past medical history included unexplained proteinuria, infertility and joint pain. Initial workup showed a large retroperitoneal soft tissue mass, which has appeared stable for 10 years. He subsequently developed neuropsychiatric symptoms with imaging findings of meningoencephalitis. Concurrent investigations showed elevated ANA, anti-double-stranded DNA (dsDNA) and ESR levels, as well as low complement levels...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29756331/mammalian-x-chromosome-dosage-compensation-perspectives-from-the-germ-line
#12
REVIEW
Mahesh N Sangrithi, James M A Turner
Sex chromosomes are advantageous to mammals, allowing them to adopt a genetic rather than environmental sex determination system. However, sex chromosome evolution also carries a burden, because it results in an imbalance in gene dosage between females (XX) and males (XY). This imbalance is resolved by X dosage compensation, which comprises both X chromosome inactivation and X chromosome upregulation. X dosage compensation has been well characterized in the soma, but not in the germ line. Germ cells face a special challenge, because genome wide reprogramming erases epigenetic marks responsible for maintaining the X dosage compensated state...
May 14, 2018: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/29753607/maternal-immunization-with-a-dna-vaccine-candidate-elicits-specific-passive-protection-against-post-natal-zika-virus-infection-in-immunocompetent-balb-c-mice
#13
Ran Wang, Xianzheng Liao, Dongying Fan, Lei Wang, Ji Song, Kaihao Feng, Mingyuan Li, Peigang Wang, Hui Chen, Jing An
Zika virus (ZIKV) infection is closely associated in the fetus with microcephaly and in the adults with Guillain-Barré syndrome and even male infertility. It is an urgent international priority to develop a safe and effective vaccine that offers protection to both women of childbearing age and their children. In this study, female immunocompetent BALB/c mice were immunized with a DNA-based vaccine candidate, pVAX1-ZME, expressing the prM/E protein of ZIKV, and the immunogenicity for maternal mice and the post-natal protection for suckling mice were evaluated...
May 9, 2018: Vaccine
https://www.readbyqxmd.com/read/29744474/utilization-of-cryopreserved-sperm-cells-based-on-the-indication-for-storage
#14
Graham Luke Machen, Stephanie E Harris, Erin T Bird, Monica L Brown, Dale A Ingalsbe, Milaida M East, Michelle Reyes, Thomas J Kuehl
Purpose: Cryopreservation of sperm from human semen has been available since the 1950s. The actual utilization of available cryopreservation technology has been infrequently reported. We set out to examine the utilization and outcomes of cryopreserved sperm cells based on the indication for storage. Materials and Methods: A dataset was developed from retrospective review. The purposes for cryopreservation, eventual utilization, and outcomes of use for insemination were recorded...
May 2018: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29743676/reconstitution-reveals-motor-activation-for-intraflagellar-transport
#15
Mohamed A A Mohamed, Willi L Stepp, Zeynep Ökten
The human body represents a notable example of ciliary diversification. Extending from the surface of most cells, cilia accomplish a diverse set of tasks. Predictably, mutations in ciliary genes cause a wide range of human diseases such as male infertility and blindness. In Caenorhabditis elegans sensory cilia, this functional diversity appears to be traceable to the differential regulation of the kinesin-2-powered intraflagellar-transport (IFT) machinery. Here we reconstituted the first, to our knowledge, functional multi-component IFT complex that is deployed in the sensory cilia of C...
May 9, 2018: Nature
https://www.readbyqxmd.com/read/29740842/melatonin-therapy-adds-extra-benefit-to-varicecelectomy-in-terms-of-sperm-parameters-hormonal-profile-and-total-antioxidant-capacity-a-placebo-controlled-double-blind-trial
#16
X-L Lu, J-J Liu, J-T Li, Q-A Yang, J-M Zhang
In this study, we aimed at investigating the impact of melatonin supplementation on semen parameters, hormonal profile and total antioxidant capacity after varicocelectomy. Infertile male patients who were diagnosed with varicocele and underwent subinguinal varicocelectomy were included in the study. After performing subinguinal varicocelectomy, the patients were randomised into two groups: 27 receiving melatonin for 3 months and 27 as the placebo-controlled group receiving placebo for 3 months. The pre-operative parameters of semen analyses, hormonal profile and seminal oxidative stress status of both groups were compared with those of post-operative parameters...
May 8, 2018: Andrologia
https://www.readbyqxmd.com/read/29740839/ageing-and-inflammation-in-the-male-reproductive-tract
#17
REVIEW
M B Frungieri, R S Calandra, A Bartke, M E Matzkin
Ageing is usually characterised by a mild chronic proinflammatory state. Despite the tight association between both processes, the phenomenon has recently been termed inflammageing. Inflammation in the male reproductive tract is frequently linked with bacterial or virus infections but also with a broad range of noninfectious processes. Prostatitis, epididymitis and orchitis, among others, can lead to infertility. However, in spite of the inflammation theory of disease, chronic inflammation in male urogenital system does not always cause symptoms...
May 8, 2018: Andrologia
https://www.readbyqxmd.com/read/29738186/-relationship-between-the-fshr-thr307ala-asn680ser-gene-polymorphism-and-male-infertility-a-meta-analysis
#18
Jun Luo, Lin Wang, Heng-Chuan Shi, Qing-Qi Zeng, Qiu-Yue Wu, Wei-Wei Li
Objective: To assess the association of the FSHR Thr307Ala-Asn680Ser gene polymorphism with male infertility. METHODS: We searched Pubmed, EMBASE, Web of Science, CNKI, and WANFANG databases for literature on the correlation of the FSHR Thr307Ala-Asn680Ser gene polymorphism with male infertility published from 2005 to the present time. According to the inclusion criteria, we included 12 epidemiological case-control studies and subjected them to a comprehensive analysis with the Stata11...
December 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29738175/-idiopathic-teratozoospermia-is-not-correlated-with-c-144delc-polymorphism-in-the-aurkc-gene-in-sichuan
#19
Xue-Mei Mu, Fang-Ying Cui, Zhuo Zhang, Xian-Ping Ding
Objective: To investigate the association of a very common mutation of c.144delC in the aurora kinase C (AURKC) gene with idiopathic teratozoospermia in Chinese infertile men in Sichuan. METHODS: Using polymerase chain reaction (PCR) and next-generation sequencing, we analyzed the correlation between c.144delC polymorphism of the AURKC gene and male infertility in 98 idiopathic teratozoospermia patients in comparison with 162 normal fertile men. RESULTS: Neither c...
December 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29738164/-seminal-plasma-anti-m%C3%A3-llerian-hormone-and-inhibin-b-and-serum-inhibin-b-in-predicting-the-outcome-of-routine-ivf-fertilization
#20
Yan-Fei Wang, Xin Wu, Rong Hu, Fei-Miao Wang, Shao-Tong Jia, Li-Guo Pei, Hui Wang, Xiao-E Ouyang, Ting Hu, Yun-Xing Fu
Objective: To analyze the correlations of seminal plasma (sp) anti-Müllerian hormone (spAMH) and inhibin B (spINHB) and serum INHB (serINHB) with semen parameters in oligoasthenospermia patients and explore their value in predicting the outcome of routine in vitro fertilization (IVF). METHODS: We obtained the levels of spAMH, spINHB and serINHB as well as semen parameters from 88 infertile males undergoing IVF due to oligoasthenospermia or female uterine tubal factors from August 2016 to February 2017...
November 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
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