Effect of Trimeric Myricetin Rhamnoside (TMR) in Carrageenan-induced Inflammation and Caecal Ligation and Puncture-induced Lung Oxidative Stress in Mice
Abstract
The Eugenia jambolana is used in folklore medicine. Leaves of E. jambolana contain flavonoids as their active constituents which possess in vitro antiinflammatory, antioxidant and the antimicrobial activity. The aim of the present study was to investigate the antiinflammatory and antioxidant effects of a flavonoid glucoside, trimeric myricetin rhamnoside (TMR) isolated from leaves of E. jambolana. TMR was studied for antiinflammatory activity in carrageenan-induced hind paw oedema and antioxidant activity in lung by caecal ligation and puncture (CLP)-induced sepsis in mice. Results of the present study indicated that TMR significantly attenuated the oedema, myeloperoxidase (MPO), cytokines and prostaglandin levels in the paw after 5 h of carrageenan injection as compared to vehicle control. It also reduced the lung MPO, lipid peroxides, and serum nitrite plus nitrate levels and increased lung reduced glutathione levels 20 h of CLP as compared to vehicle control. Thus the results of this study concluded that the TMR appears to have potential benefits in diseases that are mediated by both inflammation and oxidative stress and support the pharmacological basis of use of E. jambolana plant as traditional herbal medicine for the tre...Continue Reading
References
Estimation of total, protein-bound, and nonprotein sulfhydryl groups in tissue with Ellman's reagent
Nitric oxide: a key mediator in the early and late phase of carrageenan-induced rat paw inflammation
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