PERSISTENT EFFECTS ON BLOOD PRESSURE AND RENAL HAEMODYNAMICS FOLLOWING CHRONIC ANGIOTENSIN CONVERTING ENZYME INHIBITION WITH PERINDOPRIL

Abstract

1. Spontaneously hypertensive rats (SHR) and Wistar‐Kyoto (WKY) rats aged 4 and 16 weeks were given an acute oral dose of either Perindopril (3 mg/kg) or vehicle. Direct blood pressure (BP), glomerular filtration rate (GFR) and renal blood flow (RBF) were measured, and renal vascular resistance (RVR) calculated. GFR and RBF were lower in vehicle‐treated SHR than WKY at 4 weeks of age, but were not different at 16 weeks. Acute Perindopril increased GFR and RBF and reduced RVR in both strains at both 4 and 16 weeks. 2. Total body sodium, sodium intake and blood pressure were measured in SHR and WKY from 1 to 28 weeks of age. Rats of both strains were treated daily between 4 and 16 weeks of age..