Figure 2. Effect of L-NAME on the relaxation activity of PF water extract on porcine coronary artery. Raw tracings expressing the effect of PF water extract on porcine coronary artery in the (A) absence or (B) presence of L-NAME, a nitric oxide synthase inhibitor. (C) In the presence of L-NAME, the effect of the water extract was significantly reduced. Mean±SEM, ^*P<0.05, n=5.