Effect of Acetaminofen Versus Lornoxicam Admistration on Oxidative Stress in Rat Hepatic and Renal Tissues

Background and aim: The aim of study was to assess the oxidative status in rat hepatic and renal tissues after intraperitoneal administration of acetaminophen (AP) versus lornoxicam (L). Materials and Methods: For this purpose 18 Wistar Albino rats were randomly divided into 3 groups; each group consists of 6 rats. Group Control (Group C) remain untreated, comprises healthy rats. Group AP received AP (100 mg kg-1) and Group L received L (1.3 mg kg-1) intraperitoneally. Oxidative status was evaluated by MDA, SOD, GST and CAT in hepatic and renal tissues. Furthermore histopathalogical evaluation was performed in both tissues. Results: The lornoxicam received rats (Group L) showed significantly increased level of MDA and GST [(p=0.015), (p=0.048) respectively],decreased level of SOD (p=0.02)in liver tissue. Renal tissue MDA, SOD and GST activity and CAT levels were similar in groups [(p=0.168), (p=0.270), (p=0.686) respectively]. Histopathalogically Group AP and Group L more damaged than in Group C. Hepatic injury was moderate level in two groups. Minimal injury was observed in group AP. Renal injury in group L more than the Group AP. Conclusion: The results suggest that hepatotoxic effects of lornoxicam more than the AP while no remarkable difference nephrotoxicity.