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  • Title: Hepatoprotective potential of ethanolic extract of Ziziphus oenoplia (L.) Mill roots against antitubercular drugs induced hepatotoxicity in experimental models.
    Author: Rao ChV, Rawat AK, Singh AP, Singh A, Verma N.
    Journal: Asian Pac J Trop Med; 2012 Apr; 5(4):283-8. PubMed ID: 22449519.
    Abstract:
    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.
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