Antihypertensive effects of standardized asafoetida: Effect on hypertension induced by angiotensin II

Document Type : Original Article


1 Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

2 Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

3 Department of Physiology, Faculty of Medicine; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran


Background: Asafoetida is an oleo-gum-resin obtained from the rhizome of Ferula assa-foetida plant that its effects on hypertension have been reported. This study examines the effect of aqueous extract of asafoetida on the cardiovascular parameters in acute hypertension induced by angiotensin II (AngII). Materials and Methods: Thirty-six male rats were divided into six groups including Group 1: control; Group 2: AngII (50 ng/kg, intravenous); Group 3: losartan (Los; 10 mg/kg, i. p) + AngII; and Groups 4, 5, and 6 that received three doses of asafoetida (10, 30, and 60 mg/kg, i. p), separately. Los and extract were injected 30 min before hypertension induced by AngII. The femoral artery was cannulated and was connected to a pressure transducer, and cardiovascular parameters (systolic blood pressure [SBP], mean arterial pressure [MAP], and heart rate [HR]) were continuously recorded by a Power Lab system. The changes (△) of parameters were calculated and used for statistical analysis. Results: AngII significantly increased the value of △ SBP and △ MAP compared to the control and significantly decreased △ HR value. Injection of Los attenuated increased cardiovascular responses by AngII. Three doses of asafoetida ameliorated cardiovascular responses by AngII. Three doses of asafoetida decreased the △ HR non significantly compared to AngII. Conclusion: Our results indicated that aqueous extract of asafoetida ameliorated cardiovascular responses in acute hypertension induced by AngII. This effect in a lower dose was more effective and comparable with Los. Therefore, a part of antihypertensive effect of asafoetida is mediated through inhibition of the AngII receptor type 1 receptor of AngII.


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