نتایج جستجو برای: subfertile men

تعداد نتایج: 186924  

Journal: :iranian biomedical journal 0
حمید علیزاده نیلی hamid alizadeh nili حسین مزدرانی hossein mozdarani franck pellestor

background: various frequencies of sperm aneuploidy are reported in sperms of subfertile patients compared to normal individuals. moreover, sperm dna damage is shown to be associated with male infertility. in this study, the rate of dna damage and frequencies of aneuploidy in sperms of subfertile patients was investigated. methods: semen samples were obtained from healthy normal and subfertile ...

Journal: :Reproduction, fertility, and development 2016
Divya Saro Varghese Uma Chandran Ambili Soumya Sathy M Pillai Krishnapillai Jayakrishnan Prabhakara P Reddi Pradeep G Kumar

Loss of function of TAR DNA-binding protein (TDP-43) has been implicated in neurodegenerative disorders in both humans and animal models. TDP-43 has also been shown to be cis-acting transcriptional repressor of the acrosome vesicle (Acrv) gene in mice. In the present study, we investigated the expression of the TDP-43 transcript (TARDBP) and protein in germ cells from 11 fertile and 98 subferti...

Journal: :Fertility and sterility 2016
Michael Jurewicz Bruce R Gilbert

Ultrasound imaging and angiography play a crucial role in the diagnosis and treatment of men with subfertility. The most commonly used imaging modality is ultrasound (US), which can be used for diagnostic purposes or to aid in treatment. Scrotal US can be used to document varicoceles in subfertile men in the context of difficult examination or for confirmation before treatment. Spectral Doppler...

Journal: :Human reproduction 2012
Fatima Hammiche Joop S E Laven John M Twigt Willem P A Boellaard Eric A P Steegers Régine P Steegers-Theunissen

BACKGROUND The incidence of overweight and obesity in men of reproductive ages is rising, which may affect fertility. Therefore, this study aims to assess the associations between BMI, central adiposity and sperm parameters in men of subfertile couples. METHODS Ejaculate volume (ml), sperm concentration (millions per ml), percentage of progressive motile and immotile spermatozoa and total mot...

Journal: :Archives of andrology 1998
A M Andersson N E Skakkeboek

Inhibin B is produced by Sertoli cells, provides negative feedback on FSH secretion, and may prove to be an important marker for the functioning of seminiferous tubules. The purpose of the present study was to examine the relationship between the spermatogenic function of the testis of subfertile men and the plasma concentrations of inhibin B and FSH. These parameters were estimated in a group ...

Journal: :international journal of reproductive biomedicine 0
sundararajan venkatesh m.pharm gurdeep singh narmada prasad gupta rajeev kumar munusamy deecaraman rima dada

background: excess reactive oxygen species (ros) in the semen is believed to affect fertility in men. morphologically abnormal sperms and their relation to seminal oxidative stress in infertile and subfertile men are not clear. objective: to correlate various sperm morphological defects with seminal oxidative stress in infertile and subfertile men. materials and methods: the study included 25 p...

Journal: :Asian journal of andrology 2015
Beata Olejnik Ewa M Kratz Mariusz Zimmer Mirosława Ferens-Sieczkowska

Fucose, the monosaccharide frequent in N- and O-glycans, is a part of Lewis-type antigens that are known to mediate direct sperm binding to the zona pellucida. Such interaction was found to be inhibited in vitroby fucose-containing oligo- and polysaccharides, as well as neoglycoproteins. The objective of this study was to screen seminal plasma proteins of infertile/subfertile men for the conten...

Journal: :International braz j urol : official journal of the Brazilian Society of Urology 2006
Shai Shefi Paul J Turek

Male infertility affects 10% of reproductive aged couples worldwide and is treatable in many cases. In addition to other well-described etiologies, genetic causes of male infertility are now more commonly diagnosed. Using principles of evidence-based medicine, this review outlines diagnostic and treatments options to inform clinical management. In order of importance, randomized controlled clin...

Journal: :International Journal of Andrology 2007

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