Involvement of Potassium Channels in Vasorelaxant Effect Induced by Valeriana prionophylla Standl. in Rat Mesenteric Artery

Figure 2

Participation of NO and COX-derived products in the vasorelaxation induced by VPR in mesenteric artery rings. Effect of VPR (300 μg/mL) in rings intact endothelium precontracted with Phe (1 μM) in the absence or in the presence of L-NAME (100 μM) or indomethacin (10 μM). Values are mean ± SEM; 𝑛=5 and 𝑛=5, respectively.