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1 Journal of Physiology and Pharmacology

1 2010

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Sesbania grandiflora diminishes oxidative stress and ameliorates antioxidant capacity in liver and kidney of rats exposed to cigarette smoke

100%

Ramesh T. , Sureka C. , Bhuvana S. , Hazeena Begum V.

nr 4

467-476

Cigarette smoke is a major risk factor for many chronic diseases. However, it may be possible to relieve the smoke-induced damage by increasing the defensive system. In this study, we planned to evaluate the protective mechanism of Sesbania grandiflora (S. grandiflora) leaves against cigarette smoke-induced oxidative damage in liver and kidney of rats. Adult male Wistar-Kyoto rats were exposed to cigarette smoke for a period of 90 days and consecutively treated with S. grandiflora aqueous suspension (SGAS, 1000 mg/kg body weight per day by oral gavage) for a period of 3 weeks. Hepatic marker enzymes like aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP), as well as renal markers such as urea and creatinine were analysed in serum. Lipid peroxidation marker mainly thiobarbituric acid reactive substances (TBARS) and antioxidant enzymes namely superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), glutathione-S-transferase (GST) and glucose-6-phosphate dehydrogenase (G6PDH) activities and non-enzymatic antioxidants such as reduced glutathione, ascorbic acid and a-tocopherol levels were studied. In addition, micronutrients mainly copper (Cu), zinc (Zn), manganese (Mn) and selenium (Se) levels were analyzed in liver and kidney of rats exposed to cigarette smoke. The results indicated that SGAS significantly decreased the elevated hepatic, renal and lipid peroxidation markers and ameliorated the diminished antioxidant levels while restored the hepatic and renal architecture in cigarette smoke-exposed rats. This study concludes that S. grandiflora leaves restrain cigarette smoke-induced oxidative damage in liver and kidney of rats.