نتایج جستجو برای: sperm abnormality

تعداد نتایج: 182910  

Journal: :Journal of occupational health 2010
Feroz Hossain Osman Ali Urban J A D'Souza Daw Khin Saw Naing

OBJECTIVES To determine the relationship between semen quality and exposure to pesticide residues. METHODS A cross-sectional study was conducted among male farmers from 3 different communities in Sabah, Malaysia. A total of 152 farmers participated in this study of whom 62 farmers had been exposed to either paraquat or malathion or both to varying extents. Questionnaires were designed to reco...

Ghanbari M, Khavanin A Khazaei M, Mortazavi SB

Background: There is a great concern for the possible adverse effects of cell phones and noise waves and it looks these wave effects on the individuals’ health. Thus, the present study was conducted to examine the effect of cell phone waves, severity noise, and simultaneous effect of cell phone waves and severity noise on sperm motility and sexual hormones in adult male rats. Materials and Meth...

2013
Mazdak Razi Hassan Malekinejad Reza Sayrafi Mohammad Reza Hosseinchi Sajad Feyzi Seyed Mehdi Moshtagion Hamed Janbaz

Formalin is widely used in industry and in medicine (as tissue fixative and disinfectant).It contains reactive molecules which have been known for its cytotoxic effects. To evaluate the effect of formalin exposure on the testicular tissue and sperm parameter from neonatal period through physical and sexual maturity, 28 male Wister rats were assigned into two equal test and control groups. The t...

Journal: :Archivio italiano di urologia, andrologia : organo ufficiale [di] Societa italiana di ecografia urologica e nefrologica 2013
Nader Salama Mohamed El-Sawy

OBJECTIVES High levels of follicle stimulating hormone (FSH) in infertile males received a significant attention and exploration. Studies investigating the isolated deficiency of FSH in males are few, and its real prevalence is still unknown. Therefore, the objectives of the current study was to report the prevalence of isolated low FSH in infertile males and highlight their demographics and st...

2009
Mohamad Reza Sadeghi Mahshid Hodjat Niknam Lakpour Soheila Arefi Naser Amirjannati Tahereh Modarresi Hossain Hossaini Jadda Mohammad Mehdi Akhondi

Sperm chromatin integrity has been being recognized as an important factor in male fertility. During normal fertilization, high quality sperm with intact chromatin are selected through natural selection in journey from vagina to fallopian tube. However, using Assisted Reproductive Techniques, particularly ICSI, the natural selection is bypassed. Therefore sperm with DNA breakage have the opport...

Journal: :The Journal of urology 2012
Craig Niederberger

BACKGROUND The prevalence of chromosomal abnormalities is assumed to be higher in infertile men and inversely correlated with sperm concentration. Although guidelines advise karyotyping infertile men, karyotyping is costly, therefore it would be of benefit to identify men with the highest risk of chromosomal abnormalities, possibly by using parameters other than sperm concentration. The aim of ...

2016
Mariano Mascarenhas Sumi Thomas Mohan S. Kamath Ramya Ramalingam Ann Marie Kongari S Yuvarani Vivi M. Srivastava Korula George

AIM To estimate the prevalence of chromosomal abnormalities and Y chromosome microdeletion among men with azoospermia and severe oligozoospermia and its correlation with successful surgical sperm retrieval. SETTING AND DESIGN A prospective study in a tertiary level infertility unit. MATERIALS AND METHODS In a prospective observation study, men with azoospermia and severe oligozoospermia (co...

2009
B. Khalili M. J. Zamiri A. Rashidi

The present study was conducted to observe the effect of increased osmolality of basic tris extender supplemented with trehalose and sucrose on post-thawing quality (motility, progressive motility, viability, the rate of acrosome abnormality, total abnormality and membrane integrity) of Markhoz goat spermatozoa. Fresh semen samples were evaluated for motility and sperm concentration. Only semen...

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