Data/hora: 11/06/2024 07:01:58

Provedor de dados: 	45	
País: 	Brazil	
Título: 	(+)-Catechin and (-)-epigallocatechin gallate: are these promising antioxidant therapies for frozen goat semen?	
Autores: 	Silva,E.C.B.; Arruda,L.C.P.; Vieira,J.I.T.; Soares,P.C.; Guerra,M.M.P.	
Data: 	2019-04-01	
Ano: 	2019	
Palavras-chave: 	Antioxidants; Cryopreservation; Flavonoids; Oxidative stress; Semen.	
Resumo: 	ABSTRACT The aim of this study was to evaluate the effects of different concentrations of (+)-catechin or (-)-epigallocatechin gallate (EGCG) on goat semen freezability. Poolsof semen were processed (Experiment 1: 0, 15, 25, 50, 75, or 100µM (+)-catechin; Experiment 2: 0, 15, 25, 50, 75, or 100µM EGCG) and frozen. After thawing, the samples were evaluated for kinematics, plasma membrane (PMi) and acrosome integrity, morphology, and oxidative stress, at 0 and 1h. In Experiment 1, at 0h, VSL and VAP were greater (P&lt;0.05) with 15µM than with 50 and 100; WOB was lower (P&lt;0.05) with 100µM than with 0, 15, and 25; and BCF was higher (P&lt;0.05) with 75 and 100µM than with 0. In turn, in Experiment 2, progressive motility was higher (P&lt;0.05) with0 and 15µM than with50 and 75; LIN was lower (P&lt;0.05) with75 and100µM than with0 and 15; WOB was higher (P&lt;0.05) with0 and 15µM; and PMi was greater (P&lt;0.05) with100µM than 0. Thus, (+)-catechin or EGCG at higher concentrations inhibits the kinematics of frozen goat sperm, in a transitory way, and 100µM of EGCG preserves the PMi.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200521	
Editor: 	Universidade Federal de Minas Gerais, Escola de Veterinária	
Relação: 	10.1590/1678-4162-10539	
Formato: 	text/html	
Fonte: 	Arquivo Brasileiro de Medicina Veterinária e Zootecnia  v.71 n.2 2019	
Fonte: 	info:eu-repo/semantics/openAccess