Title:Antihypertensive Effect of Euphorbia cheiradenia in Rats
Volume: 21
Issue: 3
Author(s): Smail Amthaghri, Ayoub Amssayef, Miloudia Slaoui and Mohamed Eddouks*
Affiliation:
- Team of Ethnopharmacology and Pharmacognosy, Faculty of Sciences and Techniques Errachidia, Moulay Ismail
University of Meknes, Errachidia, Morocco. BP 509 Errachidia, Morocco
Keywords:
Hypertension, Euphorbia cheiradenia, L-NAME, vasorelaxant, KATP channels, adrenergic receptors β, ACE2.
Abstract:
Aims: The study aimed to investigate the effect of Euphorbia cheiradenia on blood
pressure.
Background: Euphorbia cheiradenia is a medicinal plant with several medicinal properties.
Objective: This study aimed to study the vasorelaxant and antihypertensive capacity of the aqueous
extract of Euphorbia cheiradenia (E. cheiradenia), and to evaluate its effect on angiotensinconverting
enzyme 2 (ACE2).
Methods: The antihypertensive ability of aerial parts of the aqueous extract of E. cheiradenia
(AEEC) was investigated in L-NAME-induced hypertensive rats, and its vasorelaxant effect was
performed on the isolated thoracic rat aorta. In addition, the possible inhibitory effect of AEEC on
ACE2 was also studied.
Results: AEEC lowered blood pressure parameters in hypertensive rats. The study of the vasorelaxant
activity revealed that AEEC partially relaxed the aortic rings through activation of the
KATP channel and inhibition of the β-adrenergic pathway. Whereas pretreatment of aortic rings
with nifedipine, indomethacin, L-NAME, and methylene blue did not attenuate AEEC-induced
vasorelaxation. However, AEEC did not affect ACE2 in isolated rat aortas.
Conclusion: The study showed that aqueous E. cheiradenia extract exhibits significant antihypertensive
activity in hypertensive rats.