Title:	Effect of hydrogen peroxide on thawed ovine sperm motility.
Authors:	MAIA, M. da S. BICUDO, S. D. RODELLO, L.
Affiliation:	MARCIANE DA SILVA MAIA, CPATSA; S. D. BICUDO, São Paulo State University; L. RODELLO, São Paulo State University.
Date Issued:	2014
Citation:	Animal Reproduction, v. 11, n. 2, p. 119-123, apr../jun. 2014.
Description:	Oxidative stress, resulting from excessive levels of ROS in semen, has a negative impact on functional parameters and sperm fertility. In this study we examined the influence of the oxidative stress induced by hydrogen peroxide (H2O2) in ovine sperm motility after thawing and catalase (CAT) ability to preserve sperm motility. Semen was incubated at 37°C with 100 ?M H2O2, 1 U catalase + 100 ?M H2O2 or no treatment, for 30 min. Immediately after adding treatments, sperm motility was determined by computer-assisted semen analysis (CASA). Incubation with H2O2 led to a significant (P < 0.05) decrease in motility parameters whereas catalase prevented a decline in motility secondary to oxidative stress. After 30 min of incubation with H2O2, total motility (12.0% vs. control 73.0%, H2O2 +CAT 70.0%), progressive motility (0.0% vs. control 19.0%, H2O2 +CAT 19.0%) and rapid motility (1.0% vs. control 43.0%, H2O2 +CAT 40.0%) decreased significantly (P < 0.05), whereas percentage of static cells increased (84.0% vs. control 18.0%, H2O2 +CAT 20.0%). We conclude that H2O2 causes damage to ovine sperm motility and that catalase is able to avoid detrimental effect of H2O2 on sperm motility.
Thesagro:	Produção animal Ovino Catalase Descongelamento Sêmen
NAL Thesaurus:	Animal production
Keywords:	Estresse oxidativo Antioxidantes
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPATSA)