Figure 2: Comparison of SOD activity in (A) serum and (B) liver of groups of controls, diabetic, diabetic and normal rats fed with Co Q10 (10 mg/kg BW for 6 weeks). Co Q10 treatment fail to increase SOD activity compared to diabetic group. * Represents a significant difference between diabetic group and control groups (P < 0.05) and # indicates a significant difference between diabetic rats received Co Q10 and diabetic group. Values are means ± SEM for each group. Each bar represents at least six rats. SOD, Superoxide dismutase; Co Q10, coenzyme Q10; DM, diabetes mellitus.