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Cardiovascular & Hematological Disorders-Drug Targets

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ISSN (Print): 1871-529X
ISSN (Online): 2212-4063

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Research Article

Antihypertensive and Vasorelaxant Effects of Rumex vesicarius (L.) through Receptor-Operated Calcium Channels in Hypertensive Rats

Author(s): Ayoub Amssayef, Ismail Bouadid, Ahmed EL-Haidani and Mohamed Eddouks*

Volume 22, Issue 1, 2022

Published on: 21 June, 2022

Page: [67 - 82] Pages: 16

DOI: 10.2174/1871529X22666220531110308

Price: $65

Abstract

Aims: The aim of the study was to assess the antihypertensive activity of Rumex vesicarius. Background: The genus Rumex (sorrel, Polygonaceae), containing approximately 200 species, is distributed worldwide (African, European, Asian, and American countries). It is widely used in traditional medicine as analgesic, diuretic, antispasmodic, and antihypertensive plant.

Objectives: This study aimed to assess the possible antihypertensive vasorelaxant capacity and effect on angiotensin-converting enzyme 2 (ACE-2) of the aqueous extract of Rumex vesicarius (R. vesicarius).

Methods: In the present study, the aqueous extract of R. vesicarius (AERV) was prepared, its antihypertensive activity was examined in N(ω)-nitro-L-arginine methyl ester(L-NAME)-induced hypertensive rats, and its vasorelaxant ability along with its effect on stimulating or inhibiting ACE-2 were determined in isolated rat thoracic aorta.

Results: The results indicated that AERV decreased the systolic, diastolic, mean, and mean arterial blood pressure in hypertensive rats. The data revealed that AERV exerted its antihypertensive effect through vasodilatory properties via an endothelium-independent pathway. Interestingly, the study demonstrated that the vasorelaxation ability of AERV might be mediated through receptor-operated calcium channels (ROCC). However, AERV extract had no effect on either stimulating or inhibiting ACE-2.

Conclusion: The present study demonstrates clearly the antihypertensive and vasorelaxant activities of R. vesicarius in hypertensive rats, supporting its beneficial action as an antihypertensive agent.

Keywords: Hypertension, Rumex vesicarius, vasorelaxation, aortic ring, medicinal plant, ACE-2, receptor-operated calcium channels.

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