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  • Title: Antioxidant effect of Hemidesmus indicus on ethanol-induced hepatotoxicity in rats.
    Author: Saravanan N, Nalini N.
    Journal: J Med Food; 2007 Dec; 10(4):675-82. PubMed ID: 18158840.
    Abstract:
    The antioxidant effect of the ethanolic root extract of Hemidesmus indicus, an indigenous Ayurvedic medicinal plant used in soft drinks in India, was studied in rats with ethanol-induced hepatotoxicity. Administering 20% ethanol (5 g/kg of body weight/day) for 60 days to male Wistar rats resulted in significantly decreased body weight and increased liver/body weight ratio. The liver marker enzymes, aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatae (ALP), gamma-glutamyl transpeptidase (GGT), and lactate dehydrogenase (LDH), were elevated. In addition, the levels of plasma, erythrocyte, and hepatic thiobarbituric acid-reactive substances (TBARS), hydroperoxides (LOOH), and conjugated dienes (CD) were also elevated in ethanol-fed rats as compared to those of the experimental control rats. Decreased activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), reduced glutathione (GSH), vitamin C, and alpha-tocopherol (vitamin E) were also observed in ethanol-administered as compared to control rats. Ethanolic root extract of H. indicus was administered at a dose of 500 mg/kg of body weight/day for the last 30 days of the experiment to rats with ethanol-induced liver injury, which significantly increased body weight, significantly decreased the liver/body weight ratio, AST, ALT, ALP, GGT, and LDH activities, and also the levels of TBARS, LOOH, and CD, significantly elevated the activities of SOD, CAT, GPx, and GSH in plasma, erythrocytes, and liver, and also increased levels of plasma and liver vitamin C and vitamin E at the end of the experimental period as compared to those of untreated ethanol-administered rats. Thus, our data indicate that treatment with H. indicus extract offers protection against free radical-mediated oxidative stress in plasma, erythrocytes, and liver of animals with ethanol-induced liver injury.
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