Exogenous L-arginine ameliorates angiotensin II-induced hypertension and renal damage in rats

Niwanthi Wickramasekara Rajapakse, Carmen De Miguel, Satarupa Das, David L Mattson

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30 Citations (Scopus)

Abstract

Experiments were performed to determine whether exogenous L-arginine could ameliorate angiotensin II-induced hypertension and renal damage. Rats were instrumented with chronic indwelling femoral venous and arterial catheters for infusions of drugs and measurement of conscious arterial pressure. Arterial blood pressure significantly increased from 124+/-1 to 199+/-4 mm Hg, after 9 days of continuous infusion of angiotensin II (20 ng/kg per minute; IV; n=6 to 9). In contrast, the increase in arterial pressure after 9 days of angiotensin II infusion was significantly blunted by 45 (P=0.0003) in rats coadministered L-arginine (300 microg/kg per minute; IV; n=7 to 9). The glomerular injury index was significantly greater in rats administered angiotensin II in comparison with rats administered saline vehicle (P
Original languageEnglish
Pages (from-to)1084 - 1090
Number of pages7
JournalHypertension
Volume52
Issue number6
Publication statusPublished - 2008

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