Document Detail


Effects of the blockade of the renin-angiotensin system in cyclosporin-induced hypertension.
MedLine Citation:
PMID:  8382242     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To compare the acute hypotensive effects of three different methods of inhibiting the renin-angiotensin system in a primate model of cyclosporin-induced hypertension. DESIGN: The effects of maximally effective doses of an angiotensin I converting enzyme inhibitor, antihuman renin antibodies or a renin inhibitor (Ro 42-5892) on arterial pressure were evaluated in cyclosporin-treated monkeys. METHODS: Squirrel monkeys were made hypertensive by a 4-week treatment with oral cyclosporin (30 mg/kg) and were equipped with a telemetry system in order to measure arterial blood pressure in the conscious state. RESULTS: Each inhibitor induced a complete suppression of plasma angiotensin II 1 h after administration. The renin antibodies did not decrease blood pressure. Cilazapril decreased blood pressure and Ro 42-5892 was more effective than cilazapril. Moreover, when the renin inhibitor was administered after injection of renin antibodies (rabbit antiserum, 0.4 ml intravenously) or after cilazapril (10 mg/kg orally), it induced a supplementary fall in blood pressure. CONCLUSIONS: These data demonstrate that in this experimental model of hypertension the three different methods of maximal inhibition of the renin-angiotensin system do not lead acutely to the same blood pressure decrease. The results also suggest that renin inhibition might be more effective than angiotensin converting enzyme inhibition in certain forms of hypertension.
Authors:
J P Clozel; W Fischli; J Ménard
Publication Detail:
Type:  In Vitro; Journal Article    
Journal Detail:
Title:  Journal of hypertension     Volume:  11     ISSN:  0263-6352     ISO Abbreviation:  J. Hypertens.     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-03-22     Completed Date:  1993-03-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8306882     Medline TA:  J Hypertens     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  75-81     Citation Subset:  IM    
Affiliation:
F. Hoffmann-La Roche Ltd, Basel, Switzerland.
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MeSH Terms
Descriptor/Qualifier:
Angiotensin I / blood
Angiotensin II / blood
Animals
Antibodies / pharmacology*
Cilazapril / pharmacology*
Cyclosporine
Female
Hypertension / chemically induced,  physiopathology*
Imidazoles / pharmacology*
Kidney / metabolism
Male
Renin / antagonists & inhibitors*,  immunology,  metabolism
Renin-Angiotensin System / drug effects*
Saimiri
Chemical
Reg. No./Substance:
0/Antibodies; 0/Imidazoles; 11128-99-7/Angiotensin II; 135669-48-6/remikiren; 59865-13-3/Cyclosporine; 9041-90-1/Angiotensin I; 92077-78-6/Cilazapril; EC 3.4.23.15/Renin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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