Prevention and reversal by enalapril of target organ damage in angiotensin II hypertension

Journal of the Renin-angiotensin-aldosterone System : JRAAS
Caroline RugaleBernard Jover

Abstract

Angiotensin-converting enzyme inhibitors (ACE-Is) prevent target organ damage in several models of hypertension. The aim of this study was to assess the influence of the ACE-I enalapril (10 mg/kg(-1) per day, gavage) on the cardiovascular alterations and production of free radicals induced by chronic infusion of angiotensin II (Ang II, 200 ng/kg(-1) per minute, s.c.) in Sprague-Dawley rats. Enalapril was given concomitantly for the 10 days of Ang II infusion (prevention) or from day 10 to 17 of Ang II infusion (intervention). The influence of the NADPH oxidase inhibitor apocynin (600 mg/L(-1) in drinking water) was evaluated. Enalapril and apocynin had no effect on hypertension in the prevention and intervention studies. Enalapril prevented the increase in heart weight index (HWI), carotid cross-sectional area (CSA) and albuminuria induced by Ang II. Enalapril reduced HWI and albuminuria whereas CSA was not affected in the intervention study. Apocynin had effects comparable to enalapril. Both enalapril and apocynin reduced the overproduction of superoxide anion by the left ventricle and rise in advanced oxidation protein products induced by Ang II. Therefore, the antioxidant but not the antihypertensive effect of enalapril may ...Continue Reading

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Citations

Mar 8, 2014·International Journal of Food Sciences and Nutrition·Julie CarillonBernard Jover
Feb 5, 2008·Toxicology·Yolanda I ChirinoJosé Pedraza-Chaverri
Dec 8, 2011·Journal of Applied Toxicology : JAT·June ChoiHak Hyun Jung
Mar 3, 2007·Pharmacological Reviews·Noboru TodaTomio Okamura
Apr 19, 2008·Gender Medicine·Kathryn Sandberg

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