نتایج جستجو برای: Fertilizing Potential
تعداد نتایج: 1069496 فیلتر نتایج به سال:
Background & Aims: Cyclophosphamide (CP) has been known as an immunosuppressant agent, and is reported to induce oxidative stress. It also impacts gonadal cells nucleus and reduce the fertilizing potential. Therefore, the present study was aimed to evaluate the protective effects of Ethyl Pyruvate as a potential antioxidant on in vitro fertilized embryos development following exposure to CP. ...
Mammalian sperm acquire fertilizing capacity in the female tract in a process called capacitation. At the molecular level, capacitation requires protein kinase A activation, changes in membrane potential and an increase in intracellular calcium. Inhibition of these pathways results in loss of fertilizing ability in vivo and in vitro. We demonstrated that transient incubation of mouse sperm with...
Background & aim: Nonylphenol (NP) has been known as an immunosuppressant agent, and reported to induce oxidative stress, to impact gonadal cells nucleus and to reduce the fertilizing potential. Therefore, present study was aimed to evaluate the protective effect of Satureja Khuzestanica, as a potential antioxidant, on in vitro fertilized embryos development following exposure to NP. Methods: ...
s:2011:"Background: Imidacloprid (IMD) is a systemic insecticide which acts as an insect neurotoxin and belongs to a class of chemicals called the neonicotinoids which act on the central nervous system of insects. According to previous studies, IMD is rated as "moderately toxic" on an acute oral basis to mammals and according to United States Environmental Protection Agency this compound is cla...
Polyzoospermia is generally recognized as a male factor contributing to infertility and/or recurrent abortion. Although a reduced spermatozoal fertilizing capacity is assumed to be involved, so far there is no conclusive explanation for the assumed reduced reproductive performance in these patients, and data on the fertilizing capacity of spermatozoa from polyzoospermic men are lacking. The pre...
Progressively motile spermatozoa were present in 42/47 (89%) of post-vasectomy specimens, and in 16 of 24 samples (66%) demonstrable fertilizing potential could be detected in the zona-free hamster egg assay. The mean +/- s.e.m. post-vasectomy penetration rate of 20.6 +/- 6.0% was, however, significantly lower (P less than 0.001) than the pre-vasectomy value of 49.7 +/- 6.4%. After vasectomy th...
The nuclear chromatin decondensation test (NCDT) detects the ability of the sperm chromatin to undergo decondensation following fertilization. The test does not have direct bearing with the fertilizing ability of the spermatozoa but only reflects the proportion of sperm that may swell following exposure to in vitro decondensing agents. The gross seminal parameters do not have any direct relatio...
The effect of hypercholesterolaemia on testicular endocrine and exocrine function was evaluated. Furthermore, the influence of hypercholesterolaemia on sperm quality, quantity, and fertilizing potential was appreciated. Eight mature rabbits (group A) were fed chow containing 3% cholesterol for 12 weeks. An additional six rabbits (group B) were fed normal chow for the same period. At the end of ...
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