In-vitro Antioxidant and In-Vivo Hepatoprotective Activity of Ethenolic Extract of Tectona grandis Bark Against CCl4 Induced Liver Injury in Rats

Objectives: The systematic screening of Tectona grandis bark with the purpose of discovering new bioactive compounds as a hepatoprotective agent and to establish the scientific basis for the therapeutic actions of traditional plant medicines. Methods: Tectona grandis bark ethenolic extract was studied for the hepatoprotective activity against CCl₄ induced liver injury in rats. Serum enzymes level, total bilirubin and histopathological study of liver were performed. This extract’s DPPH radical scavenging potential was also studied. Results: Oral administration of ethenolic extract of Tectona grandis bark (200 mg/kg) exhibited significant reduction (p<0.05) in CCl₄-induced increased levels of SGPT, SGOT, ALP and bilirubin (Total) concentration. Treatment with Liv 52 syrup also reversed the hepatotoxicity significantly (p<0.05). Histopathological studies also provided supportive evidence for biochemical analysis. This extract also showed better activity in quenching DPPH radical. Conclusion: Tectona grandis bark ethenolic extract shown to have hepatoprotective and antioxidant action due to presence of quinones and tannin like phytoconstituents.