Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/58311
Type: Artigo de periódico
Title: Protective effects of BAY 41-2272 (sGC stimulator) on hypertension, heart, and cardiomyocyte hypertrophy induced by chronic L-NAME treatment in rats
Author: Zanfolin, M
Faro, R
Araujo, EG
Guaraldo, AMA
Antunes, E
De Nucci, G
Abstract: This Study evaluated the effects of BAY 41-2272 (BAY), a specific activator of sGC NO-independent action on changes of mean arterial blood pressure, heart and left ventricle weight indexes, cardiomyocyte hypertrophy (Vv) and fibrosis area induced by chronic N-nitro-L-arginine methyl ester (L-NAME) treatment in rats. The animals were divided into (a) control group, (b) L-NAME group, (c) L-NAME+BAY group, and (d) BAY group. Eight weeks of L-NAME treatment caused a significant increase in mean arterial blood pressure when compared with untreated rats (173 +/- 11.1 and 109 +/- 5.0 mm Hg, respectively; P < 0.01). L-NAME+BAY cotreatment abolished the L-NAME-induced hypertension (112 +/- 5.1 mm Hg; P < 0.01). Significant increases in heart and left ventricle weight indexes and in Vv were observed in the L-NAME-treated animals compared with control group, and concomitant treatment with BAY significantly attenuated this hypertrophic effect. Treatment with L-NAME presented several areas of repairing fibrosis in left ventricles, and this effect was also abolished by BAY cotreatment. Our results demonstrate that BAY 41-2272 inhibits hypertension and prevents heart abnormalities (cardiac hypertrophy and increased fibrosis areas) induced by NO synthase inhibition.
Subject: NOS inhibition
hypertension
cardiomyocyte hypertrophy
BAY 41-2272
fibrosis
sGC stimulator
Country: EUA
Editor: Lippincott Williams & Wilkins
Rights: fechado
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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