alexa Abstract | Antiulcerogenic effect of gallic acid in rats and its effect on oxidant and antioxidant parameters in stomach tissue

Indian Journal of Pharmaceutical Sciences
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Research Paper Open Access

Abstract

In the present study, we investigate the antiulcerogenic effect of gallic acid against aspirin plus pyrolus ligation-induced gastric ulcer in rats. Rats were treated with gallic acid (100 and 200 mg/kg) and famotidine (20 mg/kg) for 1 week, followed by induction of gastric ulcer using the aspirin plus pyrolus ligation model. At the end of 4 h after ligation, the rats were sacrificed and ulcer index, gastric juice volume, pH and other biochemical parameter of gastric juice were evaluated. Stomachs of rats were evaluated biochemically to determine oxidant and antioxidant parameters. Pretreatment with gallic acid significantly decreased ulcer index, gastric juice volume, free and total acidity, total protein, DNA content and increased pH and carbohydrates concentration. Gallic acid at a dose of 100 and 200 mg/kg exerted 69.7 and 78.9% ulcer inhibition, respectively. The levels of superoxide dismutase, catalase, reduced glutathione, glutathione reductase, glutathione peroxidise, glucose-6-phosphate dehydrogenase were increased while reduction in myeloperoxidase and lipid peroxidation were observed in the stomach tissues of the drug treated rats. The histopathological studies further confirmed the antiulcer activity of gallic acid. We conclude that the gallic acid possesses antiulcer effect and that these occur by a mechanism that involves attenuation of offensive factors, improvement of mucosal defensive with activation of antioxidant parameters and inhibition of some toxic oxidant parameters.

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Author(s): S Sen K Asokkumar M Umamaheswari AT Sivashanmugam V Subhadradevi

Keywords

Antioxidant, antisecratoty, antiulcer, aspirin plus pylorus ligation, gallic acid, mucosal defence

 
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