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J Ethnopharmacol. 2004 Oct;94(2-3):317-22.

Platelet anti-aggregant property of some Moroccan medicinal plants.

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1
Laboratoire de Physiologie et Pharmacologie Cellulaire, Département de Biologie, Université Mohamed 1er, Faculté des Sciences, Bd. Mohamed VI, BP 717, Oujda 60000, Morocco. mekhfi@sciences.univ-oujda.ac.ma

Abstract

It is known that blood platelets may present some dysfunction linked to cardiovascular pathologies such as arterial hypertension. The aim of this work is to examine the in vitro anti-aggregant effect of five medicinal plants among which three were reported as antihypertensive in oriental Morocco: Arbutus unedo (Ericaceae), Urtica dioïca (Urticaceae), and Petroselinum crispum (Apiaceae). The two other plants were Cistus ladaniferus (Cistaceae) and Equisetum arvense (Equisetaceae). The results obtained showed that all extracts produced a dose-dependent inhibition of thrombin and ADP-induced aggregation. The calculated IC50 (half-maximal inhibition of thrombin and ADP-induced aggregation) was found to be identical in all plant extracts while Urtica dioïca had a higher IC50 value. The effect of plants could be related in part to the polyphenolic compounds present in their extracts suggesting their involvement in the treatment or prevention of platelet aggregation complications linked to cardiovascular diseases. Phytochemical separation must be carried out to identify the active principles responsible for the anti-aggregant effect and elucidate their mechanisms of action.

PMID:
15325737
DOI:
10.1016/j.jep.2004.06.005
[Indexed for MEDLINE]
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