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Asian Pacific Journal of Tropical Medicine ; (12): 283-288, 2012.
Article Dans Anglais | WPRIM | ID: wpr-819784

Résumé

OBJECTIVE@#To evaluate the hepatoprotective potential of ethanolic (50%) extract of Ziziphus oenoplia (L.) Mill (Z. oenoplia) root against isoniazid (INH) and rifampicin (RIF) induced liver damage in animal models.@*METHODS@#Five groups of six rats each were selected for the study. Ethanolic extract at a dose of 150 and 300 mg/kg as well as silymarin (100 mg/kg) were administered orally once daily for 21 d in INH + RIF treated groups. The serum levels of glutamic oxaloacetic transaminase (SGOT), glutamate pyruvate transaminase (SGPT), alkaline phosphatase (SALP), and bilirubin were estimated along with activities of superoxide dismutase, catalase, glutathione S-transferase, glutathione peroxidase, and hepatic melondialdehyde formation. Histopathological analysis was carried out to assess injury to the liver.@*RESULTS@#The considerably elevated serum enzymatic activities of glutamic oxaloacetic transaminase, glutamate pyruvate transaminase, alkaline phosphatase and bilirubin due to INH + RIF treatment were restored towards normal in a dose dependent manner after the treatment with ethanolic extract of Z. oenoplia roots. Meanwhile, the decreased activities of superoxide dismutase, catalase, glutathione S-transferase and glutathione peroxidase were also restored towards normal dose dependently. In addition, ethanolic extract also significantly prevented the elevation of hepatic melondialdehyde formation in the liver of INH + RIF intoxicated rats in a dose dependent manner. The biochemical observations were supplemented with histopathological examination of rat liver sections.@*CONCLUSIONS@#The results of this study strongly indicate that ethanolic extract of Z. oenoplia has a potent hepatoprotective action against INH + RIF induced hepatic damage in rats.


Sujets)
Animaux , Mâle , Rats , Antioxydants , Pharmacologie , Antituberculeux , Toxicité , Bilirubine , Métabolisme , Lésions hépatiques dues aux substances , Enzymes , Métabolisme , Éthanol , Pharmacologie , Hépatocytes , Isoniazide , Toxicité , Phytothérapie , Méthodes , Extraits de plantes , Pharmacologie , Racines de plante , Rat Wistar , Rifampicine , Toxicité , Ziziphus
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