Time filter

Source Type

Tareq K.M.A.,Laboratory of Animal Biotechnology | Akter Q.S.,Laboratory of Animal Biotechnology | Takagi Y.,Laboratory of Animal Biotechnology | Hamano K.-I.,Laboratory of Animal Biotechnology | And 2 more authors.
Reproductive Medicine and Biology | Year: 2010

Purpose: Selenium (Se) and vitamin E (Vit-E), as an integral part of antioxidant systems, play an important role in the motility and acrosome reaction (AR) of mammalian spermatozoa. The purpose of this study was to investigate the effect of Se and Vit-E on motility, viability, AR and accumulation of ammonia in the culture medium during different incubation periods in porcine sperm. Methods: Sperm samples were washed, swum-up and incubated at 37°C for 1 and 3 h in Sp-TALP medium supplemented with sodium selenite (SS), seleon L-methio-nine (SeMet) and Vit-E in the presence or absence of ammonia. Sperm motility was determined on the basis of movement quality examined by phase microscopy. Viability and AR of spermatozoa were assessed by Hoechst 33258 and chlortetracycline (CTC) staining technique, and accumulation of ammonia was measured by the indophenol method. The incorporation of 14C(U)-glucose was assessed with a liquid scintillation counter. Results: In experiment 1, the sperm motility, viability, AR and incorporation of C(U)-glucose increased significantly (P<0.05) in SS, SeMet and Vit-E (5, 5 μg/l and 1.0 mM, respectively) compared with the control. In experiment 2, treatment of the sperm with SeMet and SeMet + Vit-E in © Japan Society for Reproductive Medicine 2009.

Loading Laboratory of Animal Biotechnology collaborators
Loading Laboratory of Animal Biotechnology collaborators