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Evaluation of male infertility

W Jiang, L Shi, H Liu, J Cao, P Zhu, J Zhang, M Yu, Y Guo, Y Cui, X Xia
While several previous studies have proposed an association between male infertility and protamine polymorphism, the reported findings have shown some inconsistency. To evaluate the potential association between the two most common single nucleotide polymorphisms (rs2301365 and rs1646022) in protamine and male infertility, we performed a meta-analysis involving 2713 cases and 2086 controls from 15 published case-controlled studies. Overall, our analysis showed significant associations between the specific protamine single-nucleotide polymorphism (rs2301365) and male infertility, and this association was indicated by all of the models we tested...
March 14, 2018: Andrologia
Francesco Lotti, Mario Maggi
Infertility affects up to 12% of all men, and sexual dysfunction occurs frequently in men of reproductive age, causing infertility in some instances. In infertile men, hypoactive sexual desire and lack of sexual satisfaction are the most prevalent types of sexual dysfunction, ranging from 8.9% to 68.7%. Erectile dysfunction and/or premature ejaculation, evaluated with validated tools, have a prevalence of one in six infertile men, and orgasmic dysfunction has a prevalence of one in ten infertile men. In addition, infertile men can experience a heavy psychological burden...
March 13, 2018: Nature Reviews. Urology
Florina Haimovici, Janis L Anderson, Gordon W Bates, Catherine Racowsky, Elizabeth S Ginsburg, Dan Simovici, Raina N Fichorova
PROBLEM: Psychiatric disorders and stress in women have been associated with poor IVF outcome. We hypothesized that both partners in the infertile couples are emotionally affected, and cytokines in both may link psychological to reproductive outcome. METHOD OF STUDY: Forty-five IVF couples completed questionnaires and visual analog scales for stress and psychiatric disorders and had cytokines measured in serum, semen, cervicovaginal, and follicular fluids. Multivariable analyses, t tests, maximum likelihood estimates, Spearman correlation, and data mining were applied...
March 12, 2018: American Journal of Reproductive Immunology: AJRI
F Mohammadpour Lashkari, M A Sadighi Gilani, A Ghaheri, M R Zamanian, P Borjian Boroujeni, A Mohseni Meybodi, M Sabbaghian
Disorders of sex development (DSD) are congenital abnormalities as an atypical development process in either gonadal or chromosomal structure. It is the cause of the abnormality in phenotype and characteristics. Chromosomal analysis plays an important role in the DSD determination. 45,X/46,XY mosaicism is a rare karyotype, and its prevalence is about 1.5 in 10,000 newborns. It affects the growth, hormonal balance, gonad development and histology. All data such as height, male general appearance, testis size and volume, external genitalia, spermogram and hormonal levels, testis pathology, Y chromosome microdeletion and karyotype, and assisted reproductive technology (ART) outcome were recorded based on patients profile and history...
March 12, 2018: Andrologia
E Mangoli, M A Khalili, A R Talebi, S Ghasemi-Esmailabad, A Hosseini
The main goal was to evaluate the correlation between sperm parameters and chromatin quality with embryo kinetics via time-lapse monitoring system (TLM). A total of 40 couples involved in the ICSI program as a result of male infertility. For assessment of sperm chromatin and DNA quality, we used aniline blue, toluidine blue, chromomycin A3, acridine orange and terminal transferase-mediated deoxyuridine triphosphate biotin end labelling assays. All mature oocytes were injected, and the generated zygotes (2PNs) were cultured in TLM...
March 12, 2018: Andrologia
Rulin Dai, Yuan Pan, Yan Fu, Qian Liu, Weifeng Han, Ruizhi Liu
OBJECTIVE: This study aimed to investigate the roles of male genetic factors, including Y chromosome microdeletions and chromosomal heteromorphism, in recurrent pregnancy loss (RPL) in Northeast China. STUDY DESIGN: We evaluated 1072 male patients from Northeast China whose wives had a history of two or more consecutive miscarriages. We also selected 971 infertile and 200 fertile men as control groups. Semen analysis was carried out by computer-assisted sperm analysis...
March 1, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Necip Pirincci, Serkan Yıldırım, Abuzer Tas, Yagmur Kuscu, Tunc Ozan, Fatih Firdolas, Halit Demir, Ahmet Karakeci
OBJECTIVES: Prolidase plays a vital role in collagen turnover, matrix remodeling and cell growth. We aimed to evaluate the association between treatment with chorionic gonadotropin and infertility and erectile dysfunction, by investigating tissue prolidase activity, oxidative stress and levels of antioxidant enzymes. MATERIALS AND METHODS: Sixteen (16) male Wistar albino rats used in this study were randomly divided into two groups: rats treated with human chorionic gonadotropin (hCG) and control rats (n = 8 in each group)...
March 5, 2018: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
Zhihui Jiang, Bo Zhou, Xinping Li, Gordon M Kirby, Xiaoying Zhang
Male infertility is a major health issue with an estimated prevalence of 4.2% of male infertility worldwide. Our early work demonstrated that Cistanche extracts protect against sperm damage in mice and that echinacoside (ECH) is one of the major active components. Here we report an essential role for ECH, a natural product that reverses or protects against oligoasthenospermia in rats. ECH was assayed by HPLC, the quantity and quality of sperm was evaluated and hormone levels were determined by radioimmunosorbent assay...
March 1, 2018: Scientific Reports
Hamid Rashtbari, Mazdak Razi, Hassan Hassani-Bafrani, Hamed Najaran
BACKGROUND: Varicocele is present in 10-20% of the male infertile population. PURPOSE: Present study was done to demonstrate the reinforcing effect of berberine (BBR), as an antioxidant and anti-inflammatory agent, on Sertoli cells-related niche and spermatogonial stem cells (SSCs) self-renewal in experimentally-induced VCL condition. STUDY DESIGN: 50 mature male Wistar rats were divided into control, control-sham, non-treated VCL-induced, 50 mg kg-1 and 100 mg kg-1 BBR-treated VCL-induced groups...
February 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Serkan Carkci, Ebru Onalan Etem, Seda Ozaydin, Ahmet Karakeci, Ahmet Tektemur, Tunc Ozan, Irfan Orhan
Background: Infertility is described as not receiving pregnancy despite unprotected and regular sexual intercourse in a 1 yr period. It is detected by 15% of the couples. Male and female factor in the etiology may be detected in similar rates. Objective: The present study aims to investigate ion channel gene expression in semen samples of infertile male compared with fertile men. Materials and Methods: A total of 150 men who applied to the urology clinic due to infertility were divided into five equal groups: asthenozoospermia, oligozoospermia, oligoasthenoteratozoospermia, teratozoospermia, and normozoospermia (control)...
December 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
E C Akinsal, N Baydilli, M E Dogan, O Ekmekcioglu
Congenital absence of the vas deferens (CAVD) is a relatively rare anomaly that may contribute to male infertility. The aim of this study was to evaluate the clinical features of patients with CAVD and to emphasise some pathological conditions that may be detected during the infertility work-up or follow-up of these patients. The charts of 150 males with the diagnosis of CAVD were evaluated retrospectively. The demographic characteristics, reasons for attendance, the way of diagnosis, interventions for infertility before and after attendance, physical examination findings, reproductive hormone levels, semen analysis results, genetical analysis results and resultant live birth events were all included in the study...
February 27, 2018: Andrologia
E Bianchi, A Stermer, K Boekelheide, M Sigman, S J Hall, G Reyes, E Dere, K Hwang
Sperm RNA is a sensitive monitoring endpoint for male reproductive toxicants, and a potential biomarker to assess male infertility and sperm quality. However, isolation of sperm RNA is a challenging procedure due to the heterogeneous population of cells present in the ejaculate, the low yield of RNA per spermatozoon, and the absence of 18S and 28S ribosomal RNA subunits. The unique biology of spermatozoa has created some uncertainty in the field about RNA isolation methods, indicating the need for rigorous quality control checks to ensure reproducibility of data generated from sperm RNA...
February 22, 2018: Andrology
Massimiliano Chiarini, Emilia De Vita, Angela Meggiolaro, Silvia Miccoli, Gaetana Maria Grazia Stricchiola, Giuseppe Alberto Grande, Maria Luisa Veneziano, Anna Santa Guzzo, Giuseppe La Torre
INTRODUCTION: The error in medicine has long been discussed in scientific debates. The purpose of this study is to evaluate the degree knowledge, attitude and behavior of students in Nursing for the failure in the health sector. METHODS: It was administered to 231 students of Nursing of the Sapienza University of Rome (171 females and 60 males), aged between 21 and 45 years, a structured questionnaire in three questions that explore the experiences and opinions about the errors found in medical practice, the causes underlying them and the mistakes that should never be committed...
October 2017: Professioni Infermieristiche
Congcong Cao, Yujiao Wen, Xiaoli Wang, Na Fang, Shuiqiao Yuan, Xunbin Huang
PURPOSE: PIWI-interacting RNA (piRNA) is a sub-group of small RNAs about 30 nucleotides length which specifically expressed in mammalian germ cells. Although piRNAs play pivotal roles in spermatogenesis regulation, little is known in the testicular tissues of infertile men. To explore whether piRNA profile could serve as a biomarker for male infertility diagnosis in a clinic, in this study, we systematically investigated the expression profile of piRNAs in testicular tissues from the patients with non-obstructive azoospermia (NOA) between successful and unsuccessful sperm retrieval before micro-dissection testicular sperm extraction (micro-TESE)...
February 19, 2018: Journal of Assisted Reproduction and Genetics
B F Zanetti, D P A F Braga, R R Provenza, R C S Figueira, A Iaconelli, E Borges
Human sperm morphology has been described as an essential parameter for the diagnosis of male infertility and a prognostic indicator of natural or assisted pregnancies. Nevertheless, standard morphological assessment remains a subjective analysis and its impact on intracytoplasmic sperm injection (ICSI) is also of limited value. The objective of this prospective cohort study was to investigate whether motile sperm organelle morphology examination (MSOME) can improve semen analysis by better defining male infertility and providing a better prognosis for ICSI up to a year later...
February 18, 2018: Andrology
O Eminaga, S Li, L C Baker, J D Brooks, M L Eisenberg
This study aims to evaluate whether cancer treatments differ in infertile men compared to men who have undergone vasectomy and age-matched controls. We analyzed subjects from the Truven Health MarketScan Claims database from 2001 to 2009. Infertile men were identified through diagnosis and treatment codes. Comparison groups included vasectomized men and an age-matched cohort who were not infertile and had not undergone vasectomy. We considered cancer types previously associated with infertility that were diagnosed after the diagnosis of infertility...
February 18, 2018: Andrology
Jeremy F Taylor, Robert D Schnabel, Peter Sutovsky
Whole genome sequencing has identified millions of bovine genetic variants; however, there is currently little understanding about which variants affect male fertility. It is imperative that we begin to link detrimental genetic variants to sperm phenotypes via the analysis of semen samples and measurement of fertility for bulls with alternate genotypes. Artificial insemination (AI) bulls provide a useful model system because of extensive fertility records, measured as sire conception rates (SCR). Genetic variants with moderate to large effects on fertility can be identified by sequencing the genomes of fertile and subfertile or infertile sires identified with high or low SCR as adult AI bulls or yearling bulls that failed Breeding Soundness Evaluation...
February 10, 2018: Animal Reproduction Science
Banafshe Hosseini, Mahdieh Nourmohamadi, Shima Hajipour, Mohsen Taghizadeh, Zatollah Asemi, Seyed Ali Keshavarz, Sadegh Jafarnejad
The objective was to evaluate the effect of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) on sperm parameters including total sperm concentration, sperm motility, sperm DHA, and seminal plasma DHA concentration in infertile men. The literature search was conducted in PubMed, Google Scholar, and Scopus from January 1, 1990 to December 20, 2017. The systematic review and meta-analysis were based on randomized controlled trials in infertile men with DHA or EPA treatments, either alone or in combination with other micronutrients...
February 16, 2018: Journal of Dietary Supplements
Vincenzo De Sanctis, Ashraf T Soliman, Mohamed A Yassin, Salvatore Di Maio, Shahina Daar, Heba Elsedfy, Nada Soliman, Christos Kattamis
Failure of pubertal growth, delay or absence of sexual development, infertility and sexual dysfunction due to hypogonadism and defective spermatogenesis are frequent and well recognized disturbances among male patients with transfusion dependent (TD) thalassaemia major (β-thal). These problems are attributed mainly to the damage caused by chronic anaemia and the deposition of excess iron in the pituitary gland and testicles. This is a short review of male pubertal disorders in patients with β-thal written by pediatric endocrinologists and haematologists with an interest and active involvement, in the diagnosis and management of these complications in this group of patients...
February 16, 2018: Acta Bio-medica: Atenei Parmensis
Stephen R Wellard, Jessica Hopkins, Philip W Jordan
Meiotic progression in males is a process that requires the concerted action of a number of highly regulated cellular events. Errors occurring during meiosis can lead to infertility, pregnancy loss or genetic defects. Commencing at the onset of puberty and continuing throughout adulthood, continuous semi-synchronous waves of spermatocytes undergo spermatogenesis and ultimately form haploid sperm. The first wave of mouse spermatocytes undergoing meiotic initiation appear at day 10 post-partum (10 dpp) and are released into the lumen of seminiferous tubules as mature sperm at 35 dpp...
February 6, 2018: Journal of Visualized Experiments: JoVE
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