Abstract Title:

Evaluation of evidenced-based radioprotective efficacy of Gymnema sylvestre leaves in mice brain.

Abstract Source:

J Environ Pathol Toxicol Oncol. 2009;28(4):311-23. PMID: 20102328

Abstract Author(s):

K Sharma, Umang Singh, Sharad Vats, K Priyadarsini, A Bhatia, Raka Kamal

Article Affiliation:

Radiation Biology Laboratory, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan 302055. sharma.krishna.v@gmail.com

Abstract:

A Gymnema sylvestre leaves extract (GSE) rich in gymnemic acids was examined for its antioxidant activities through various in vitro assays, along with its radioprotective efficacy in mice brain. The IC(50) values of GSE for 2,2-diphenyl-1-picryl-hydrazyl scavenging assays, superoxide radical scavenging assays, inhibition of in vitro lipid peroxidation assays, and protein carbonyl formation assay were 238, 140, 99.46, and 28.03 microg/mL, respectively. Furthermore, the total phenolic content in GSE was equivalent to 18.06 microg/mL of Gallic acid. The rate of *OH radical scavenging activity of GSE is 0.46 times slower than SCN- derived from nanosecond pulse radiolysis studies. Results of in vivo studies showed that radiation (8 Gy)-induced augmentation in the levels of lipid peroxidation and depletion in glutathione and protein levels in mice brain were significantly ameliorated by GSE pretreatment. Results suggest that the radioprotective efficacy of GSE may be due to its antioxidant properties.

Study Type : Animal Study

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