title: Antioxidant and hepatoprotective potential of Aegle marmelos Correa. against CCl4-induced oxidative stress and early tumor events.
abstract: The antioxidant properties and inhibitory effect on early tumor promoter markers of A. marmelos (25 and 50 mg/Kg b. wt. orally) have been evaluated. Male Wistar rats were pre-treated for seven consecutive days with A. marmelos prior to CCl4 (1 mL Kg(- 1) body weight p. o., in corn oil [1:1 v/v]) treatment. Pre-treatment with A. marmelos suppressed lipid peroxidation (LPO), xanthine oxidase (XO) and release of serum toxicity marker enzymes viz, SGOT, LDH, SGPT dose-dependently and significantly (p < 0.001). Hepatic antioxidant status viz, reduced glutathione (GSH), glutathione reductase (GR), glutathione peroxidase (GPx), quinone reductase (QR), catalase (CAT) were concomitantly restored in A. marmelos-treated groups (p < 0.001). In addition, A. marmelos pretreatment also prevented the CCl4-enhanced ornithine decarboxylase (ODC) and hepatic DNA synthesis significantly (p < 0.001). In conclusion, carbon tetrachloride-induced liver toxicity was strikingly attenuated by A. marmelos treatment and the study gives some insight into the mechanisms involved in diminution of free radical generating toxicants and enhancement of the antioxidant armory, hence preventing further tissue damage, injury and hyperproliferation. Thus, these findings indicate that A. marmelos attenuates CCl4-mediated hepatic oxidative stress, toxicity, tumor promotion and subsequent cell proliferation response in Wistar rats.
authors.affiliation: Section of Chemoprevention and Nutrition Toxicology, Department of Medical Elementology and Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India.
authors.forename: Tajdar Hussain
authors.initials: TH
authors.lastname: Khan
authors.forename: Sarwat
authors.initials: S
authors.lastname: Sultana
mesh_terms: D045471:Aegle / Q000737:chemistry* / Q000378:metabolism; D000818:Animals; D016588:Anticarcinogenic Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology*; D014408:Biomarkers, Tumor / Q000378:metabolism; D002251:Carbon Tetrachloride / Q000633:toxicity; D002374:Catalase / Q000378:metabolism; D049109:Cell Proliferation; D005978:Glutathione / Q000378:metabolism; D005979:Glutathione Peroxidase / Q000378:metabolism; D005980:Glutathione Reductase / Q000378:metabolism; D015227:Lipid Peroxidation; D008099:Liver / Q000187:drug effects* / Q000201:enzymology / Q000378:metabolism; D008297:Male; D018384:Oxidative Stress; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D014969:Xanthine Oxidase / Q000378:metabolism
chemical_list: D016588:Anticarcinogenic Agents; D000975:Antioxidants; D014408:Biomarkers, Tumor; D010936:Plant Extracts; D002251:Carbon Tetrachloride; D002374:Catalase; D005979:Glutathione Peroxidase; D014969:Xanthine Oxidase; D005980:Glutathione Reductase; D005978:Glutathione