Fig. 1. ( Left ) Time courses of the subcutaneous concentration of nitrite (NO2−)–nitrate (NO3−) after injection of carrageenan. ( Right ) Effects of SC-560 and NS-398 on subcutaneous concentrations of NO2−–NO3−. Data are presented as mean ± SD from six rats in each group. * P < 0.05. l-NMMA = N G-monomethyl-l-arginine acetate.