FIGURE 5.

Inhibition of cyclooxygenases attenuates RCE-induced relaxation of aortic rings. Endothelium-intact rings were incubated with cumulative doses of sumac in the absence (RCE; circles) or presence of indomethacin (10 μM; INDO + RCE; squares). Data represent mean ± SEM (n = 7; p < 0.01).