Figure 6: Renal tissue SOD activity. LPS injection decreased renal tissue SOD activity, while the highest dose of captopril increased it. The data are shown as mean ± SEM. ***P <0.001 compared to the control, +++P <0.001 compared to LPS, $P <0.05 and $$$P <0.001 compared to 10 mg/kg captopril, &&P <0.01 compared to 50 mg/kg captopril. SOD: Superoxide dismutase, LPS: Lipopolysaccharide, SEM: Standard error of the mean.