Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
American Journal of Pharmacology and Toxicology
Year: 2007  |  Volume: 2  |  Issue: 3  |  Page No.: 135 - 139

Cardiovascular Effect of Capparis spinosa Aqueous Extract. Part VI: In vitro Vasorelaxant Effect

N.A. Zeggwagh, J.B. Michel and M. Eddouks    

Abstract: The aim of this study was to investigate the in vitro vasorelaxanteffect of Capparis spinosa Aqueous Extract (CSAE) at a dose of 10 mg mL-1. Aortic rings isolated from normal wistar rats were used. The addition of CSAE during the plateau phase of contraction, induced by noradrenaline and KCl, produced a rapid relaxation. Incubation of aortic ring with CSAE during 30 min shifted the noradrenaline induced dose response curve (p<0.001) and the maximum response (p<0.001) was attenuated indicating that antagonist effect of the α1 adrenoreceptors was non-competitive. However, endothelium remove significantly reduced the vasorelaxant effect of CSAE (p<0.01). Furthermore, nitric oxide inhibition reduced the vasorelaxant effect of CSAE. However, cyclo-oxygenase inhibition did not affect the vasorelaxant effect of CSAE (p<0.05). Inhibition of L-type voltage dependent Ca2+ channels did not reduce the observed CSAE vasorelaxant effect (p<0.05). We conclude that CSAE at a dose of 10 mg mL-1 possess in vitro vasorelaxant effect which may by mediated via an α1 adrenoreceptors antagonism and/or modulation of nitric oxide synthesis.

View Fulltext    |   Related Articles   |   Back
   
 
 
 
  Related Articles

 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility