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Effect of (a) SOD on inhibition of acetylcholine-induced relaxation by TNF in rat mesenteric small arteries contracted with PE, (b) SOD on inhibition of ACH-induced relaxation by TNF in rat mesenteric small arteries contracted with depolarizing potassium solution containing 80 mM KCl, (c) L-NMMA and L-NAME on inhibition of ACH-induced relaxation by TNF in rat mesenteric small arteries contracted with PE. Data are means±s.e.m. of (n) observations.
