Topic
Semen
About: Semen is a research topic. Over the lifetime, 14571 publications have been published within this topic receiving 407739 citations. The topic is also known as: come & ejaculate.
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TL;DR: The data demonstrate that infertile men have significantly higher sperm DD compared with fertile men and that sperm DD exhibits a low coefficient of variation on repeated assessment, and suggest that spermDD has a relatively low degree of biologic variability.
130 citations
TL;DR: The modified method of the two-step differential extraction procedure was found to be suitable for separating sperm DNA and vaginal epithelial cell DNA from the mixed stains and MCT118(D1S80), ApoB VNTR and HLADQ alpha types of sperm DNA were detected and were confirmed by matching with corresponding male blood DNA.
130 citations
TL;DR: Characteristics of buffalo semen, diluents used for liquid storage, aspects involved in freezing and thawing of semen are reviewed, and fertility results after artificial insemination (AI) with frozen-thawed semen are given.
129 citations
TL;DR: The present study showed that the zinc level in the seminal plasma of infertile males was significantly lower than that of normal males, and zinc supplementation could significantly increase the sperm quality of infERTile males.
Abstract: Zinc is an essential trace mineral for the normal functioning of the male reproductive system. Current studies have investigated the relationship between seminal plasma zinc and male infertility but have shown inconsistent results. Hence, we systematically searched PubMed, EMBASE, Science Direct/Elsevier, CNKI and the Cochrane Library for studies that examined the relationship between seminal plasma zinc and male infertility, as well as the effects of zinc supplementation on sperm parameters. Twenty studies were identified, including 2,600 cases and 867 controls. Our meta-analysis results indicated that the seminal plasma zinc concentrations from infertile males were significantly lower than those from normal controls (SMD (standard mean differences) [95% CI] −0.64 [−1.01, −0.28]). Zinc supplementation was found to significantly increase the semen volume, sperm motility and the percentage of normal sperm morphology (SMD [95% CI]: −0.99 [−1.60, −0.38], −1.82 [−2.63, −1.01], and −0.75 [−1.37, −0.14], respectively). The present study showed that the zinc level in the seminal plasma of infertile males was significantly lower than that of normal males. Zinc supplementation could significantly increase the sperm quality of infertile males. However, further studies are needed to better elucidate the correlation between seminal plasma zinc and male infertility.
129 citations
TL;DR: It is suggested that the addition of seminal plasma can be beneficial to sperm viability when semen is diluted to low cell numbers/dose.
129 citations