Figure 4.
Effect of NO synthase inhibition by L-NMMA and L-NAME in the presence or absence of INDO on relaxation in response to SNP in rat mesenteric small arteries contracted with (a) PE, (b) depolarizing potassium solution containing 80 mM KCl. Data are means±s.e.m. of (n) observations. †P<0.05 comparing maximum response between control and L-NMMA+L-NAME+INDO.