Fig. 5

Effects of HZK and CHL on antioxidant enzyme (SOD, CAT, and GSH) activity in liver tissues. The CON group consisted of rats not administered lead acetate. The Pb group consisted of rats injected for the final 5 days of five experiment with distilled water (1.5 mL/rat) and lead acetate (25 mg/kg body weight). The HZK 150 and HZK 300 (HZK 150 or 300 mg/kg body weight, respectively) groups and the CHL 150 and CHL 300 (CHL 150 or 300 mg/kg body weight, respectively) groups consisted of rats orally administered HZK or CHL for 10 days and injected (i.p.) with 25 mg/kg of lead acetate for the final 5 days of the experimental period. Values are the mean ± SD based on Duncan’s multiple range test (P < 0.05) of seven rats per group