The relative viability of human spermatozoa

effect of zinc oxide nanoparticles on viability of human spermatozoa

background: the extensive use of different nanoparticles has raised great concerns about their occupational and biological safety. objective: the aim of this study was to evaluate the cytotoxic effect of zinc oxide nanoparticles (zno nps) on viability of spermatozoa. materials and methods: semen samples were obtained from 15 healthy persons, and were analyzed using who guidelines. each semen sa...

Impact of Cryopreservation Process on Viability, Nitric Oxide and DNA Apoptosis in Fertile Human Spermatozoa

Introduction: Infertility is a common phenomenon in modern societies. Today, use of assisted reproductive technologies (ARTs) for treatment of infertility is common, and cryopreservation is one of these technologies. Cryopreservation has impact on the function and percentage of fertility of human sperm. In this study, motility, viability, nitric oxide, and DNA apoptosis were assessed before and...

The relative viability of human spermatozoa from the vas deferens, epididymis and testis before and after cryopreservation.

Testicular and epididymal spermatozoa are routinely used with in-vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) to achieve pregnancies. In addition, excess cryopreserved spermatozoa can be thawed and used for ICSI. However, information on the recovery of epididymal and testicular spermatozoa after freeze-thaw is lacking. This is important to determine the feasibility of u...

Effect of zinc oxide nanoparticles on viability of human spermatozoa

BACKGROUND The extensive use of different nanoparticles has raised great concerns about their occupational and biological safety. OBJECTIVE The aim of this study was to evaluate the cytotoxic effect of zinc oxide nanoparticles (ZnO NPs) on viability of spermatozoa. MATERIALS AND METHODS Semen samples were obtained from 15 healthy persons, and were analyzed using WHO guidelines. Each semen s...

The Viability and Fertility of Bovine Spermatozoa