Effect of captopril on renal vascular tone in patients with essential hypertension.

Details

Serval ID
serval:BIB_A3CAFA5D1E33
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Effect of captopril on renal vascular tone in patients with essential hypertension.
Journal
Clinical Science
Author(s)
Mimran A., Brunner H.R., Turini G.A., Waeber B., Brunner D.
ISSN
0143-5221
Publication state
Published
Issued date
1979
Peer-reviewed
Oui
Volume
57
Number
Supp.l 5
Pages
421s-423s
Language
english
Abstract
1. The effect of acute inhibition of angiotensin-converting enzyme by captopril (50 mg) on renal haemodynamics and function was assessed in nine patients with essential hypertension on unrestricted sodium intake (n = 8) or low sodium diet (n = 1). 2. Captopril induced a rapid and significant decrease in arterial pressure, which was maximal within 60 min. 3. Effective renal plasma flow (ERPF) increased, glomerular filtration rate (GFR) did not change and filtration fraction (FF) decreased after captopril. No change in sodium excretion and a decrease in urinary potassium occurred. 4. In the patient on low sodium diet, captopril induced striking increases in GFR and ERPF (64 and 106% respectively). 5. The logarithm of baseline plasma renin activity was positvely correlated with the change in ERPF and negatively correlated with changes in FF and renal resistance. 6. The results indicate that in patients with essential hypertension angiotensin participates actively in the maintenance of renal vascular tone at the efferent arteriolar level. A possible influence of kinins remains to be defined.
Keywords
Adolescent, Adult, Aged, Angiotensin-Converting Enzyme Inhibitors, Blood Pressure/drug effects, Captopril/diagnostic use, Diet, Sodium-Restricted, Female, Glomerular Filtration Rate/drug effects, Humans, Hypertension/physiopathology, Kidney/blood supply, Male, Middle Aged, Proline/analogs &amp, derivatives, Regional Blood Flow/drug effects
Pubmed
Web of science
Create date
04/03/2009 15:04
Last modification date
20/08/2019 15:09
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