background: the most frequent physical finding in infertile men is varicocele, in which one of the mechanisms that can affect seminal parameters is oxidative stress. objective: our study aimed, for the first time, to compare the efficacy of recombinant human follicle-stimulating hormone (rhfsh), human chorionic gonadotropin (hcg) and human menopausal gonadotropin (hmg) on sperm parameters and f...

The present study evaluated supplementation of zinc from different sources during chicken semen cryopreservation on post-thaw quality and fertility. Adult White Leghorn was cryopreserved using 4% dimethyl sulfoxide (DMSO) in Sasaki diluent (SD). In the cryomixture oxide (6.25 12.5 µM) sulphate (100 200 added cryopreserved. plastic straws were thawed at 5°C for 100 sec samples sperm motility, li...

this study aimed to investigate the effect of different concentration of zinc nano-complex on bull spermatozoa quality and pregnancy outcome after freeze-thawing process. ejaculates were collected from four holstein bulls, twice a week during four weeks. semen samples diluted with bioxcell extender containing zero (control), 10-6, 10-5, 10-4, 10-3 and 10-2 m of zinc nano-complex. the samples we...

in order to determine iron and lead content of seminal plasma in water buffalo and to study their associations with the semen characteristics, 54 semen samples were collected from 10 buffalo bulls. the semen characteristics were evaluated; its iron and lead content were estimated by atomic absorption spectrophotometer. the iron and lead content of the seminal plasma (mean ± sem) was recorded as...

background: the purpose of this study was to evaluate the prognostic effect of hyaluronan binding assay (hba) which has been used as a method of sperm selection for intracytoplasmic sperm injection procedure, on the outcome of intrauterine insemination (iui) in couples with unexplained or mild male factor infertility. methods: 77 infertile couples were enrolled in our study. on the day of iui p...

This study was conducted to determine chromatin integrity and DNA damage by DNA electrophoresis and comet assays of buffalo fresh and frozen semen. Semen samples were collected from four buffalo bulls and evaluated after freezing for semen motility, viability, sperm abnormalities, chromatin integrity and DNA damage. A significant variation was found in semen parameters after thawing. Highly sig...

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...