In vitro Vasorelaxant Effect of Artemisia herba alba Asso. in Spontaneously Hypertensive Rats

Author(s): Zeggwagh Naoufel, Morad Hebi, Mohammed Ajebli, Jean B. Michel, Mohamed Eddouks.

Journal Name: Cardiovascular & Hematological Agents in Medicinal Chemistry

Volume 14 , Issue 3 , 2016

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Abstract:

Background: The present study aims to evaluate the in vitro vasorelaxant effect of Artemisia herba alba (Ah) aqueous extract.

Method: Aortic rings were isolated from spontaneously hypertensive rats and incubated in aqueous Ah extract at the following doses: 3, 5, 10 and 20 mg/ml. Incubation of aqueous Ah extract for 30 minutes produced a significant shift of the dose response curve to Norepinephrine (NE) (10-8 to 10-5 M) (p<0.001).

Results: Endothelium ablation significantly reduced the vasorelaxant effect of aqueous Ah extract (p<0.001). In addition, inhibition of vascular nitric oxide by Nω-Nitro-L-Arginine Methyl (LNAME) produced a significant reduction in the vasorelaxant effect of aqueous Ah extract (p<0.001).

Conclusion: We conclude that aqueous Ah extract at a dose of 20 mg/ml possess an in vitro vasorelaxant effect which seems to be dependent on the endothelium vasorelaxant factors involving nitric oxide synthesis.

Keywords: Aortic rings, Artemisia herba alba, endothelium vasorelaxant factors, ethnophamacology, hypertension, nitric oxide synthesis.

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Article Details

VOLUME: 14
ISSUE: 3
Year: 2016
Page: [190 - 196]
Pages: 7
DOI: 10.2174/1871525714666161216100044
Price: $58

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