نتایج جستجو برای: leptin sperm quality male infertility seminal plasma fertilization rate

تعداد نتایج: 2299300  

Background: Oligoasthenospermia (OAS) is a condition characterized by low sperm count associated with low sperm motility. Medical treatment is not known in allopathic system for treatment of oligoasthenospermia. Homeopathic medicine is effective in more than 95% patients. Oxidative stress and decreased antioxidant levels have been projected as a potential factors involved in the pathophysiology...

2012
Hsien-Ming Wu Dan-Tzu Lin-Tan Mei-Li Wang Hong-Yuan Huang Chyi-Long Lee Hsin-Shih Wang Yung-Kuei Soong Ja-Liang Lin

BACKGROUND Infertility affects approximately 10-15% of reproductive-age couples. Poor semen quality contributes to about 25% of infertile cases. Resulting from the direct effect on testicular function or hormonal alterations, heavy metals exposure has been related to impaired semen quality. The objective of this study was to assess the level of lead in the seminal plasma in men without occupati...

Journal: :international journal of fertility and sterility 0
mohammad eid hammadeh alixides filippos a mohammed faiz hamad

spermatozoa generate reactive oxygen species (ros) in physiological amounts which play a role in sperm functions during sperm capacitation acrosome reaction (ar) and oocyte fusion. in addition damaged sperm are likely to be the source of ros. the most important ros produced by human sperm are hydrogen peroxide superoxide anion and hydroxyl radicals. besides human seminal plasma and sperm posses...

بیدمشکی‌پور, علی, بی‌پروا, پوریا, حسین‌زاده کلاگر, اباصلت, قلی‌نژاد چاری, مریم,

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Journal: :Fertility and sterility 2003
Ramadan A Saleh Ashok Agarwal Essam A Nada Mohamed H El-Tonsy Rakesh K Sharma Andrew Meyer David R Nelson Anthony J Thomas

OBJECTIVE To examine the effects of increased sperm DNA damage in relation to seminal oxidative stress in men with idiopathic and male factor infertility. Prospective study. SETTINGS Infertility clinic at a tertiary care academic institution. PATIENT(S) Ninety-two infertile men with normal female partners. Sixteen fertile donors served as the control group. INTERVENTION(S) Standard semen ...

2013
Abasalt Hosseinzadeh Colagar Fatemeh Karimi Seyed Gholam Ali Jorsaraei

BACKGROUND Sperm dysfunction caused by reactive oxygen species (ROSs) is one of the major causes of infertility in men, which leads to, lipid peroxidation (LPO) and the formation of stable peroxidation products like Malondialdehyde (MDA) in seminal plasma. MDA is effective factor in reducing fertility. OBJECTIVES The aim of this study is to determine two biochemical markers of oxidative stres...

Journal: :Asian journal of andrology 2009
Jun Wang Jian Wang Hua-Rong Zhang Hui-Juan Shi Duan Ma Hong-Xin Zhao Biaoyang Lin Run-Sheng Li

Asthenozoospermia (AS) is a common cause of human male infertility. In one study, more than 80% of the samples from infertile men had reduced sperm motility. Seminal plasma is a mixture of secretions from the testis, epididymis and several male accessory glands, including the prostate, seminal vesicles and Cowper's gland. Studies have shown that seminal plasma contains proteins that are importa...

2017
Dan Guo Wei Wu Qiuqin Tang Shanlei Qiao Yiqiu Chen Minjian Chen Mengying Teng Chuncheng Lu Hongjuan Ding Yankai Xia Lingqing Hu Daozhen Chen Jiahao Sha Xinru Wang

The development of male infertility increased rapidly worldwide, which coinciding with the epidemic of obesity. However, the impact of weight abnormalities on sperm quality is still contestable. To assess the correlation between BMI and sperm parameters, we searched relevant articles in PubMed, Embase, Web of science, and Wanfang database published until June 2015 without language restriction. ...

Alixides Filippos A Mohammad Eid Hammadeh, Mohammed Faiz Hamad

Spermatozoa generate reactive oxygen species (ROS) in physiological amounts which play a role in sperm functions during sperm capacitation acrosome reaction (AR) and oocyte fusion. In addition damaged sperm are likely to be the source of ROS. The most important ROS produced by human sperm are hydrogen peroxide superoxide anion and hydroxyl radicals. Besides human seminal plasma and sperm posses...

Journal: :Human reproduction 1999
L R Fraser

Male subfertility/infertility is acknowledged to contribute significantly to infertility problems experienced by couples. In some instances, morphological and/or physiological defects known to interfere with normal sperm function can be identified. However, in others, no obvious cause of fertilization failure can be identified. The recent introduction of molecular methods has made it possible t...

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