نتایج جستجو برای: Sperm Protein
تعداد نتایج: 1266734 فیلتر نتایج به سال:
Introduction: Sperm-specific phospholipase C zeta (PLCζ) protein is expressed during spermatogenesis and plays a main role during oocyte activation. In this study, the expression of sperm PLCζ protein and DNA damage in fertile and infertile men was assessed. Methods: In this case-control study, semen samples were collected from 15 fertile and 10 infertile men candidated for intra-cyt...
Background: Alteration in the protein signatures of functionally immature testicular spermatozoa occurs during their journey through the epididymis. This leads to acquisition of sperm domain specific functions essential for successful fertilization. Epididymal sperm proteins are preferred targets for immunocontraception as well as in elucidating the causes of infertility. The Background of the ...
Background: The aim of this study was to compare the sperm protein profile between oligo- and normozoospermic patients with varicocele. Materials and Methods: Sperm samples of 20 normozoospermic and 20 oligozoospermic patients with varicocele were characterized using two dimensional electrophoresis (group 1 and group 2, respectively). Differences in protein expression were established using gel...
background: the availability of testis specific genes will be of help in choosing the most promising biomarkers for the detection of testicular sperm retrieval in patients with non-obstructive azoospermia (noa). testis specific chromodomain protein y 1 (cdy1) is a histone acetyltransferase which concentrates in the round spermatid nucleus, where histone hyperacetylation occurs and causes the re...
Reactive oxygen species (ROS)plays an important role in sperm motility. The physiological generation at low concentration induces beneficial effects on sperm functions and plays a significant role in sperm metabolism. Meanwhile, the excessive generation of reactive oxygen species can overwhelm protective mechanism and triggers changes in lipid and protein layers of sperm plasma membrane, which ...
Background and Objectives: Antioxidant alpha lipoic acid and β-defensin 1 protein may have a positive effect on the quality of sperm parameters. In this study, the effect of sperm incubation with alpha lipoic acid antioxidant and β-defensin 1 protein were assessed on sperm motility and viability at different times. Methods: In this experimental study, routine semen analysis was carried out o...
Backgroundm: Post-acrosomal sheath WW domain binding protein (PAWP) is one of the proteins that is expressed during spermatogenesis process and has several roles in sperm differentiation, fertilization, and early embryonic development. The aim of this study was assessment of the relationship between PAWP expression with fertilization rate in infertile men candidate for intracytoplasmic sperm...
reactive oxygen species (ros)plays an important role in sperm motility. the physiological generation at low concentration induces beneficial effects on sperm functions and plays a significant role in sperm metabolism. meanwhile, the excessive generation of reactive oxygen species can overwhelm protective mechanism and triggers changes in lipid and protein layers of sperm plasma membrane, which ...
In this study, quantitive characteristics and chemical composition of in roach (Rutilus rutilus caspicus) sperm were investigated. Sperm traits included sperm movement duration, percentage of motile spermatozoa, sperm density, spermatocrit and sperm volume. Some seminal plasma characteristics (sodium, potassium, calcium, magnesium and chloride) were investigated. In addition, some metabolites o...
Background: Post-acrosomal sheath WW domain binding protein (PAWP) is one of sperm factors related to oocyte activation and is expressed in elongating spermatid. Previously, the effect of high of testicular temperature in infertile men with varicocele on semen quality, sperm DNA damage, expression of genes and proteins were reported. In this study, expression of PAWP at RNA and protein levels, ...
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