Malondialdehyde (MDA) levels (a), activities of CAT (b), activities of GSH-Px (c) and activities of SOD (d) in the heart tissue of normal controls (C), normal rat treated with small dose of carvedilol (1 mg/kg) (CS), normal rat treated with large dose of carvedilol (10 mg/kg) (CL), untreated diabetic rat (D), diabetic rat treated with small dose of carvedilol (DS), diabetic rat treated with large dose of carvedilol (DL)
Each bar represents the mean±SD; *
P<0.05 vs C; **
P<0.01 vs C; #
P<0.05 vs D; ##
P<0.01 vs D; +
P<0.05 DS vs DL