Effect of 10 weeks of repeated dose treatment of SA on (A) nitrite level, (B) MDA level, (C) SOD level, and (D) GSH level in kidney, liver, heart, and sciatic nerve of rats with nSTZ-induced T2DM at the end of the 18th week. Data are expressed as mean ± SD, where n = 6 rats per group; A (p < 0.05), B (p < 0.01), and C (p < 0.001) indicate a significant difference from the normal control; a (p < 0.05), b (p < 0.01), and d (p < 0.001) indicate a significant difference from the diabetic control; and 1 (p < 0.05), 2 (p < 0.01), and 3 (p < 0.001) indicate a significant difference from the metformin-treated group.