نتایج جستجو برای: infertile men

تعداد نتایج: 192733  

Journal: :Human reproduction 2004
A Idahl J Boman U Kumlin J I Olofsson

BACKGROUND The objective of this study was to determine the prevalence of Chlamydia trachomatis among both men and women seeking help at an infertility clinic, and to prospectively follow the effect of previous infection on pregnancy rates and pregnancy outcome after a long follow-up period (mean 37 months). METHODS A total of 244 infertile couples was tested for C. trachomatis IgG antibodies...

Journal: :Journal of andrology 2001
F F Pasqualotto R K Sharma H Kobayashi D R Nelson A J Thomas A Agarwal

The purpose of this study was to determine whether normospermic infertile men have high seminal oxidative stress, using 3 measures of oxidative stress: reactive oxygen species (ROS), total antioxidant capacity (TAC), and a composite ROS-TAC score. Forty-three normospermic men without leukocytospermia and 19 healthy donors who came to our infertility clinic were included. Patients were categoriz...

Journal: :Urology 2010
Rakesh K Sharma Edmund Sabanegh Reda Mahfouz Sajal Gupta Aparna Thiyagarajan Ashok Agarwal

OBJECTIVES To standardize the TUNEL assay by establishing inter- and intraobserver variability, interassay variability, cutoff values, sensitivity and specificity of the assay, and studying the distribution of the DNA damage in a population of infertile men referred to a clinical andrology laboratory. METHODS Seminal ejaculates from 25 healthy male volunteers (controls) and 194 infertile men ...

Journal: :BMC Health Services Research 2008
Batool Rashidi Ali Montazeri Fatemeh Ramezanzadeh Mamak Shariat Nasrin Abedinia Mahnaz Ashrafi

BACKGROUND Infertile couples might experience psychological distress and suffer from impaired health-related quality of life. This study aimed to examine health-related quality of life in infertile couples receiving either in-vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) treatment. METHODS This was a cross-sectional study of quality of life in infertile couples attendin...

Journal: :The Journal of urology 1999
B N Hendin P N Kolettis R K Sharma A J Thomas A Agarwal

PURPOSE Because varicocele is seen often in infertile men and oxidative stress has been implicated in sperm dysfunction, we assessed spermatozoal reactive oxygen species and seminal total antioxidant capacity in men with and without varicocele. MATERIALS AND METHODS Levels of reactive oxygen species and total antioxidant capacity were measured in the semen of 21 infertile men with varicocele,...

Journal: :Human reproduction 2011
Saher Sue Hammoud David A Nix Ahmad O Hammoud Mark Gibson Bradley R Cairns Douglas T Carrell

BACKGROUND The sperm chromatin of fertile men retains a small number of nucleosomes that are enriched at developmental gene promoters and imprinted gene loci. This unique chromatin packaging at certain gene promoters provides these genomic loci the ability to convey instructive epigenetic information to the zygote, potentially expanding the role and significance of the sperm epigenome in embryo...

2015
M. Burak Kaplan Hasan Acar

BACKGROUND Infertility is a health problem which affects about 10-20% of married couples. Male factor infertility is involved approximately 50% of infertile couples. Most of male infertility is regarding to deletions in the male-specific region of the Y chromosome. OBJECTIVE In this study, the occurrence of deletions in the AZF region and association between infertility and paternal age were ...

Journal: :Genetics and molecular research : GMR 2010
E O Etem D Erol Y Huseyin A Arslan

Male infertility is a common barrier that prevents successful conception. There have been reports of azoospermia in men with familial Mediterranean fever, some of whom had not been treated with colchicine. Variation in this disorder could be a risk factor for amyloidosis associated with azoospermia. We determined the frequency of 6 of the most common Mediterranean fever gene mutations, M680I, M...

2016
Haifa A. Al-Turki

OBJECTIVE To evaluate semen parameters in infertile Saudi Arabian men. METHODS In this retrospective study, semen analysis and other clinical data were extracted from medical records of men attending an infertility clinic. Patients were stratified according to smoking status and presence or absence of varicocele. RESULTS The study included 425 patients. Nonsmokers (n = 322) had significantl...

Journal: :BJU international 2005
Ashok Agarwal Tamer M Said

Men with idiopathic infertility generally present with significantly higher seminal ROS levels and lower antioxidant properties than healthy controls [3]. Therefore, it appears that the presence of OS in infertile normozoospermic men may be the cause behind previously unexplained cases of infertility. Similarly, sperm DNA damage analysis may reveal hidden sperm DNA abnormalities in infertile me...

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