Involvement of Potassium Channels in Vasorelaxant Effect Induced by Valeriana prionophylla Standl. in Rat Mesenteric Artery
Figure 5
Effect of VPR on CaCl2-induced contraction in endothelium-denuded mesenteric artery rings. Concentration-response curves for CaCl2 were determined in Ca2+-free solution containing KCl (60 mM). The curves were determined in the absence (control) and after incubation with VPR (300 μg/mL). Values are expressed as mean ± SEM, .