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Year : 2011  |  Volume : 43  |  Issue : 3  |  Page : 291-295

Protective effect of ethyl acetate fraction of Rhododendron arboreum flowers against carbon tetrachloride-induced hepatotoxicity in experimental models

1 Department of Pharmacology, Goel Institute of Pharmacy and Sciences, Faizabad Road, Lucknow, Uttar Pradesh, India
2 Pharmacognosy and Ethnopharmacology Division, National Botanical Research Institute, Lucknow, Uttar Pradesh, India
3 School of Pharmaceutical Sciences, Siksha 'O' Anusandhan University, Ghatikia, Bhubaneswar, Orissa, India

Correspondence Address:
Neeraj Verma
Department of Pharmacology, Goel Institute of Pharmacy and Sciences, Faizabad Road, Lucknow, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0253-7613.81518

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Objective: To evaluate the hepatoprotective potential of ethyl acetate fraction of Rhododendron arboreum (Family: Ericaceae) in Wistar rats against carbon tetrachloride (CCl 4 )-induced liver damage in preventive and curative models. Materials and Methods: Fraction at a dose of 100, 200, and 400 mg/kg was administered orally once daily for 14 days in CCl 4 -treated groups (II, III, IV, V and VI). The serum levels of glutamic oxaloacetic transaminase (SGOT), glutamate pyruvate transaminase (SGPT), alkaline phosphatase (SALP), γ-glutamyltransferase (γ -GT), and bilirubin were estimated along with activities of glutathione S-transferase (GST), glutathione reductase, hepatic malondialdehyde formation, and glutathione content. Result and Discussion: The substantially elevated serum enzymatic activities of SGOT, SGPT, SALP, γ-GT, and bilirubin due to CCl 4 treatment were restored toward normal in a dose-dependent manner. Meanwhile, the decreased activities of GST and glutathione reductase were also restored toward normal. In addition, ethyl acetate fraction also significantly prevented the elevation of hepatic malondialdehyde formation and depletion of reduced glutathione content in the liver of CCl 4 -intoxicated rats in a dose-dependent manner. Silymarin used as standard reference also exhibited significant hepatoprotective activity on post-treatment against CCl 4 -induced hepatotoxicity in rats. The biochemical observations were supplemented with histopathological examination of rat liver sections. The results of this study strongly indicate that ethyl acetate fraction has a potent hepatoprotective action against CCl 4 -induced hepatic damage in rats.


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