Hepatoprotective Effect of Ethanolic Extracts of Allophylus Cobbe (L.) Raeusch Leaves against Paracetamol Induced Hepatotoxicity in Rats

Abstract

Objective: Aim of the current investigation is to screen the hepatoprotective activity of the Ethanolic Extract of Allophylus Cobbe (EEAC) leaves against Paracetamol (PCM) induced hepatotoxicity in rats. Methods: EEAC was administered to the rats for 7 days (200 mg/kg and 400 mg/kg) and hepatotoxicity was induced by administration of PCM (3 g/k day . After 24 h of toxicity induction, the blood samples were collected by retro orbital plexus method and different serum and tissue biochemical parameters were analyzed. Livers of the animals were isolated and were studied for histopathological changes. The extract treated animals were compared with Silymarin (100 mg/kg). Results: Treatment of animals with EEAC at 200 and 400 mg/kg showed dose dependant significant decrease in Serum Glutamate Oxaloacetate Transaminase (SGOT), Serum Glutamate Pyruvate Transaminase (SGPT), Alkaline Phosphatase (ALP), Acid Phosphatase (ACP), Creatinine and Lipid Peroxidation (LPO) levels and significant increase in protective enzymes Superoxide Dismutase (SOD), Catalase (CAT), Glutathione (GSH) and total proteins levels in serum and tissue biochemical parameters when compared with the PCM treated rats. In histopathological study of liver, animals pretreated with EEAC showed minimal liver damage with distinct protection of structures and the architectural frame of the hepatic cells as observed by the liver section showing mild degree of liver damage, sinusoidal congestion, and mild inflammation. Allophylus Cobbe showed the presence of bioactive components having antioxidant potential; which might be responsible for hepatoprotective activity of the EEAC. Conclusion: The present study showed that EEAC restored the levels of altered biochemical parameters and prevented the liver from the toxic effects of PCM concludes that Allophylus Cobbe possess hepatoprotective activity.