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ISRN PharmacologyVolume 2013 2013, Article ID 691372, 8 pages

Research Article

Department of Biochemistry, University of Allahabad, Allahabad 211002, India

Department of Biotechnology, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Allahabad 211007, India

Received 17 July 2013; Accepted 2 September 2013

Academic Editors: S. Ceruti, G. Edwards, T. Irie, R. Thurmond, and T. B. Vree

Copyright © 2013 Shashank Kumar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The present study reports the antioxidant and membrane protective activities of Calotropis procera aqueous root extract using several in vitro assays along with the determination of phenolic as well as flavonoid contents. Total phenol and flavonoid contents in extract were 15.67 ± 1.52 mg propyl gallate equivalent-g and 1.62 ± 0.05 mg quercetin equivalent-g, respectively. UV-visual spectroscopic scanning of the extract indicated the presence of glycoside-linked tannins or flavonoids. The extract exhibited appreciable reducing power signifying hydrogen donating potential. DPPH radical scavenging assay revealed substantial free radical scavenging activity 42–90% in the extracts. Concentration dependent response was observed in the metal ion chelating activity 16–95%. Extracts also provided protection against iron induced lipid peroxidation in rat tissue liver, brain, and kidney homogenates. Comparatively better protective efficacy against peroxidative damage was observed in liver 71% followed by kidney 65% and brain 60% tissues. Positive correlation was observed between DPPH free radical scavenging activity and reducing power of extract. Similarly strong positive correlation was observed between metal ion chelating ability and percentage lipid peroxidation inhibition in different tissues. The study demonstrated considerable protective efficacy in C. procera root aqueous extracts against free radical and metal ion mediated oxidative damage.





Autor: Shashank Kumar, Ashutosh Gupta, and Abhay K. Pandey

Fuente: https://www.hindawi.com/



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