Abstract
The present study aims to evaluate the hepatoprotective activity of ethanol extract of Symplocos racemosa (EESR) bark on carbon tetrachloride (CCl4)-induced hepatic damage in rats. CCl4 with olive oil (1 : 1) (0.2 ml/kg, i.p.) was administered for ten days to induce hepatotoxicity. EESR (200 and 400 mg/kg, p.o.) and silymarin (100 mg/kg p.o.) were administered concomitantly for fourteen days. The degree of hepatoprotection was measured using serum transaminases (AST and ALT), alkaline phosphatase, bilirubin, albumin, and total protein levels. Metabolic function of the liver was evaluated by thiopentone-induced sleeping time. Antioxidant activity was assessed by measuring liver malondialdehyde, glutathione, catalase, and superoxide dismutase levels. Histopathological changes of liver sample were also observed. Significant hepatotoxicity was induced by CCl4 in experimental animals. EESR treatment showed significant dose-dependent restoration of serum enzymes, bilirubin, albumin, total proteins, and antioxidant levels. Improvements in hepatoprotection and morphological and histopathological changes were also observed in the EESR treated rats. It was therefore concluded that EESR bark is an effective hepatoprotective agent in CCl4-induced hepatic damage, and has potential clinical applications for treatment of liver diseases.
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