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Male factor infertility

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https://www.readbyqxmd.com/read/29237379/male-urogen%C3%A4-tal-d%C3%A4-sorders-and-metabol%C3%A4-c-syndrome-poss%C3%A4-ble-l%C3%A4-nks-character%C3%A4-st%C3%A4-cs-and-potent%C3%A4-al-treatment-strateg%C3%A4-es
#1
Cetin Volkan Oztekin, Ecem Kaya, Didem Yilmaz-Oral, Serap Gur
BACKGROUND: Metabolic syndrome (MetS), as a cluster of metabolic derangements which is major risk factors for vascular disease, is one of the most important threats to public health. Although the epidemiological and limited amount of basic science and clinical evidence link MetS to several male urogenital disorders, a holistic approach aiming to define common mechanistic pathways and new possible therapeutic targets are lacking. OBJECTIVE: The current review has focused on providing scientific evidence on the role of MetS and its components on male urogenital disorders and the definition of new therapeutic targets...
December 12, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29234440/morinda-officinalis-polysaccharides-stimulate-hypothalamic-gnrh-secretion-in-varicocele-progression
#2
Zhu Zhu, Feng Huang, Feng Wang, Yonghong Zhang, Xiaozhen Zhao, Wei Wang
Varicoceles (VCs) are the predominant cause of male infertility and are a risk factor for chronic venous disease. Morinda officinalis (M. officinalis) is a traditional Chinese medicine used to tonify the kidney and strengthen yang. In this study, we evaluated the effects of water-soluble polysaccharides extracted from M. officinalis (MOPs) on gonadotropin-release hormone (GnRH) secretion in a classic experimental left VC (ELV) rat model. Intragastric administration of MOPs at a dose ranging from 50 mg kg-1 to 100 mg kg-1 facilitated improvements in sperm parameters and seminiferous epithelial structures, modulated serum hormone profiles, and stimulated GnRH synthesis and release in the hypothalamus...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29231996/molecular-mechanisms-of-tributyltin-induced-alterations-in-cholesterol-homeostasis-and-steroidogenesis-in-hamster-testis-in-vivo-and-in-vitro-studies
#3
V Kanimozhi, K Palanivel, M A Akbarsha, B Kadalmani
Tributyltins (TBT) are ubiquitous and persistent environmental contaminants that disturb normal endocrine function including gonadal function in humans and marine organisms. TBT was administered through oral route to male Syrian hamsters at daily doses of 50, 100 and 150 ppm/kg for 65 days. Changes in testis morphology, immunohistochemistry of iNOS, 3β-HSD and 17β-HSD, cholesterol transport receptor, nuclear receptors, and transcription factors were analyzed. TBT treatment affected each of these parameters to significant levels in a dose-dependent manner compared to vehicle treated control...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29227750/genetic-polymorphisms-in-prm1-prm2-and-ybx2-genes-are-associated-with-male-factor-infertility
#4
Oya Sena E Aydos, Yalda Hekmatshoar, Buket Altınok, Tülin Özkan, Onur Şakirağaoğlu, Aynur Karadağ, Fuat Kaplan, Seda Ilgaz, Mehmet Taşpınar, Işıl Yükselen, Asuman Sunguroğlu, Kaan Aydos
AIMS: The etiology of infertility is still unknown in almost half of all male infertility patients. In sperm, DNA condensation differs from somatic and female gamete cells, with the protamine (PRM) gene and its transcription factor, Y-box binding protein 2 (YBX2), playing key roles in making the structure more compact. Protamine polymorphisms have been studied in different populations, but various results have been acquired. MATERIALS AND METHODS: In our study, we examined, for the first time in a Turkish population, the association between protamine gene alleles (PRM1 c...
December 11, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/29202957/parental-influences-on-sperm-banking-attempts-among-adolescent-males-newly-diagnosed-with-cancer
#5
James L Klosky, Jessica S Flynn, Vicky Lehmann, Kathryn M Russell, Fang Wang, Robin N Hardin, Jasmine R Eddinger, Hui Zhang, Lauren A-M Schenck, Leslie R Schover
OBJECTIVE: To investigate the influence of parental sociodemographic, communication, and psychological factors on sperm collection attempts among at-risk adolescent males newly diagnosed with cancer. DESIGN: Prospective, single group, observational study design. SETTING: Pediatric oncology centers. PATIENT(S): Parents (N = 144) of 122 newly diagnosed adolescent males at increased risk for infertility secondary to cancer therapy...
December 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/29201526/male-infertility-associated-with-de-novo-pericentric-inversion-of-chromosome-1
#6
Özgür Balasar, Ayşe Gül Zamani, Mehmet Balasar, Hasan Acar
Inversion occurs after two breaks in a chromosome have happened and the segment rotates 180° before reinserting. Inversion carriers have produced abnormal gametes if there is an odd number crossing- over between the inverted and the normal homologous chromosomes causing a duplication or deletion. Reproductive risks such as infertility, abortion, stillbirth and birth of malformed child would be expected in that case. A 54-year- old male patient was consulted to our clinic for primary infertility. The routine chromosome study were applied using peripheral blood lymphocyte cultures and analyzed by giemsa-trypsin-giemsa (GTG) banding, and centromer banding (C-banding) stains...
December 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/29201422/demographic-analysis-of-a-low-resource-socioculturally-diverse-urban-community-presenting-for-infertility-care-in-a-united-states-public-hospital
#7
Jacqueline R Ho, Jacquelyn R Hoffman, Lusine Aghajanova, James F Smith, Marisela Cardenas, Christopher N Herndon
Background: Infertility is a prevalent disease of reproductive health that exerts an impact on an estimated 80 million people worldwide. For many, involuntary childlessness becomes a central and preoccupying issue in their lives, the impact of which is exacerbated by lack of access to basic care and treatment. These effects maybe further magnified among immigrant communities, a growing but highly marginalized population that has been shown in other areas of reproductive health to experience worse health outcomes and delays in access to care...
2017: Contraception and Reproductive Medicine
https://www.readbyqxmd.com/read/29198589/-environment-and-lifestyle-impacts-on-male-fertility
#8
M Bendayan, L Alter, N Swierkowski-Blanchard, L Caceres-Sanchez, J Selva, G Robin, F Boitrelle
In this last century, an increase of men infertility has been registered. It has been suggested that environmental factors could a negative impact over sperm quality. Among these factors, impact of environmental toxicant has been spread by media. In this review of scientific literature, we identify several environmental factors that could impact men fertility in a negative way. These factors are tobacco, marijuana, weight, body mass index, heat, nutritional state, electromagnetic waves and altitude. For each of these factors, the impact over men fertility, their mechanism, as well their influence over the use of Assisted Reproductive Technics are reported...
November 30, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29196234/quantitative-proteomics-analysis-reveals-alterations-of-lysine-acetylation-in-mouse-testis-in-response-to-heat-shock-and-x-ray-exposure
#9
Chengmei Xie, Hongyan Shen, Hui Zhang, Jinting Yan, Yang Liu, Fuwen Yao, Xi Wang, Zhongyi Cheng, Tie-Shan Tang, Caixia Guo
Environmental stresses are important factors causing male infertility which attracts broad attention. Protein acetylation is a pivotal post-translational modification and modulates diverse physiological processes including spermatogenesis. In this study, we employed quantitative proteomic techniques and bioinformatics tools to analyze the alterations of acetylome profile of mouse testis after heat shock and X-irradiation. Overall, we identified 1139 lysine acetylation sites in 587 proteins in which 1020 lysine acetylation sites were quantified...
November 28, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29194998/emerging-technologies-for-home-based-semen-analysis
#10
REVIEW
S Yu, M Rubin, S Geevarughese, J S Pino, H F Rodriguez, W Asghar
With about 70 million cases of infertility worldwide, half of which are caused by male factors, sperm analysis is critical to determine male fertility potential. Conventional semen analysis methods involve complex and manual inspection with a microscope, and these methods are labor intensive and can take several days. Due to unavailability of rapid, convenient, and user-friendly semen analysis tools, many men do not seek medical evaluation, especially in resource-constrained settings. Furthermore, as conventional methods have to be conducted in the laboratories, many men are unwilling to be tested as a result of social stigma in certain regions of the world...
December 1, 2017: Andrology
https://www.readbyqxmd.com/read/29193350/curcumin-nanomicelle-improves-semen-parameters-oxidative-stress-inflammatory-biomarkers-and-reproductive-hormones-in-infertile-men-a-randomized-clinical-trial
#11
Fatemeh Alizadeh, Maryam Javadi, Ali Akbar Karami, Fereshteh Gholaminejad, Maria Kavianpour, Hossein Khadem Haghighian
At least 50% of infertile couple's problems are related to male factor infertility. This Randomized, Double-Blind, Placebo-Controlled Clinical Trial conducted in Urology unit of Infertility Clinic on 60 infertile men. Patients were randomly assigned to one of intervention and placebo (n = 30) groups. Finally, 28 subjects in each group completed the study. Participants in the intervention group took daily 80 mg curcumin nanomicelle and those in the placebo group took daily placebo for 10 weeks. Semen analysis, anthropometric, physical activity assessments, total antioxidant capacity, malondialdehyde, inflammatory factors, and reproductive hormones were measured at the baseline and at the end of the study...
November 28, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29179258/increased-risk-of-autoimmune-disorders-in-infertile-men-analysis-of-us-claims-data
#12
W D Brubaker, S Li, L C Baker, M L Eisenberg
Aberrations in reproductive fitness may be a harbinger of medical diseases in men. Existing data suggest that female infertility is associated with autoimmune disorders; however, this has not been examined in men. As immune surveillance and hormonal factors can impact male fertility and autoimmunity, we sought to determine the association between male infertility and incident autoimmune disorders. We analyzed subjects from the Truven Health MarketScan claims database from 2001 to 2008. Infertile men were identified through diagnosis and treatment codes...
November 27, 2017: Andrology
https://www.readbyqxmd.com/read/29177442/increased-27-hydroxycholesterol-production-during-luteolysis-may-mediate-the-progressive-decline-in-progesterone-secretion
#13
Yafei Xu, Scot M Hutchison, José J Hernández-Ledezma, Randy L Bogan
STUDY QUESTION: Does 27-hydroxycholesterol (27OH) actively facilitate the progression of luteolysis? SUMMARY ANSWER: There is increased mRNA expression of the enzyme that produces 27OH during luteolysis in vivo in rhesus macaques and sheep, and 27OH reduces progesterone secretion from human luteinized granulosa cells. WHAT IS KNOWN ALREADY: There is an increase in mRNA expression of liver x receptor (LXR) and a decrease in sterol regulatory element binding protein 2 (SREBP2) target genes during spontaneous luteolysis in primates, which could result in reduced cholesterol availability for steroidogenesis...
November 21, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29177237/the-etiologies-of-dna-abnormalities-in-male-infertility-an-assessment-and-review
#14
REVIEW
Soheila Pourmasumi, Parvin Sabeti, Tahereh Rahiminia, Esmat Mangoli, Nasim Tabibnejad, Ali Reza Talebi
The sperm DNA damage may occur in testis, genital ducts, and also after ejaculation. Mechanisms altering chromatin remodeling are abortive apoptosis and oxidative stress resulting from reactive oxygen species. Three classifications of intratesticular, post-testicular, and external factors have been correlated with increased levels of human sperm DNA damage which can affect the potential of fertility. Lifestyle, environment, medical, and iatrogenic factors might be considered to cause dysmetabolism to make distracting interactions and endocrine disrupting compounds...
June 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29171024/mir-19b-3p-induces-cell-proliferation-and-reduces-heterochromatin-mediated-senescence-through-plzf-in-goat-male-germline-stem-cells
#15
John Clotaire Daguia Zambe, Yuanxin Zhai, Zhe Zhou, Xiaomi Du, Yudong Wei, Fanglin Ma, Jinlian Hua
Promyelocytic leukemia zinc finger PLZF, known as ZBTB16 or ZFP145 is a critical zinc finger protein of male germline stem cells (mGSCs), it's an essential transcriptional factor for goat testis development and spermatogenesis. Loss of PLZF results in progressive depletion of SSCs after the first wave of spermatogenesis leading to eventual spermatogenic arrest, apparently the result of a shift in the balance in SSC fate away from self-renewal and toward differentiation. Cumulating evidences have demonstrated that microRNAs are expressed in a cell-specific or stage-specific manner during spermatogenesis and acts as regulators on specific makers such as Stra8, ETV5, and PLZF...
November 24, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29168588/ovarian-response-to-controlled-ovarian-stimulation-for-fertility-preservation-before-oncology-treatment-a-retrospective-cohort-of-157-patients
#16
Nikolaos Tsampras, Stephen A Roberts, Della Gould, Cheryl T Fitzgerald
This is a retrospective cohort study aiming to examine the response of oncology patients undergoing controlled ovarian stimulation (COS) for fertility preservation and to review the incidence of short-term complications. The study group consisted by all oncology patients undergoing ovarian stimulation for fertility preservation (n = 157) between April 2009 and April 2016. Patients undergoing COS for IVF/ICSI for male factor only infertility in the same time period (n = 2,128) provided a comparator group...
November 23, 2017: European Journal of Cancer Care
https://www.readbyqxmd.com/read/29164657/resveratrol-protects-leydig-cells-from-nicotine-induced-oxidative-damage-through-enhanced-autophagy
#17
Shengxian Liu, Qinyu Sun, Zhaomin Li
Some studies have revealed that nicotine can damage the male reproductive system through various ways including oxidative stress, which is a primary factor in the pathogenesis of male infertility. The strong antioxidative capacity of resveratrol has been demonstrated previously, but its role in the context of male reproduction remains inconclusive. To explore the biological role of resveratrol in protecting male reproductive function and the potential underlying mechanism, nicotine-induced Leydig cells were used as a cell model of oxidative damage...
November 22, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29164649/impact-of-alcohol-and-cigarette-smoking-consumption-in-male-fertility-potential-looks-at-lipid-peroxidation-enzymatic-antioxidant-activities-and-sperm-dna-damage
#18
S Aboulmaouahib, A Madkour, I Kaarouch, O Sefrioui, B Saadani, H Copin, M Benkhalifa, N Louanjli, R Cadi
Alcohol intake and cigarette smoking are the major lifestyle factors with negative impact on fertility. We were interested to evaluate the negative impact of these factors on oxidative stress (OS), enzymatic antioxidant activity (EAO) of spermatozoa and on its DNA damage. This study included 108 male infertile patients with normal range of sperm conventional parameters but with unexplained infertility in assisted reproductive technologies programme. Firstly, OS was analysed based on lipid peroxidation (MDA) and EAO which included catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR)...
November 21, 2017: Andrologia
https://www.readbyqxmd.com/read/29162952/oral-health-status-and-fertility-treatment-including-ivf
#19
REVIEW
Sunali Sundeep Khanna, Prita A Dhaimade, Shalini Malhotra
Oral health is extremely important for the general wellbeing of the individual. From a number of research articles, it is established that there is a definitive connection between periodontal health and many systemic diseases, like type II diabetes, cardiovascular diseases and even preterm labor and low birth weight of babies. The significant rate of failure in the treatment of infertility and IVF (in vitro fertilization) even with multiple advancements in the last decade has made scientist take interest in newer parameters of health, an important one among them being periodontal health...
December 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/29162950/intrauterine-insemination-fundamentals-revisited
#20
EDITORIAL
Gautam N Allahbadia
Intrauterine insemination (IUI) is an assisted conception technique that involves the deposition of a processed semen sample in the upper uterine cavity, overcoming natural barriers to sperm ascent in the female reproductive tract. It is a cost-effective, noninvasive first-line therapy for selected patients with functionally normal tubes, and infertility due to a cervical factor, anovulation, moderate male factor, unexplained factors, immunological factor, and ejaculatory disorders with clinical pregnancy rates per cycle ranging from 10 to 20%...
December 2017: Journal of Obstetrics and Gynaecology of India
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