Abstract:
:Natural compounds with free-radical scavenging activity have potential role in maintaining human health and preventing diseases. In this study, we report the antioxidant and cytoprotective properties of 14-aminotetradecanoic acid (ATDA) isolated from the Decalepis hamiltonii roots. ATDA is a potent scavenger of superoxide (O(2) (•-)), hydroxyl ((•)OH), nitric oxide ((•)NO), and lipid peroxide (LOO(•)) physiologically relevant free radicals with IC(50) values in nM (36-323) range. ATDA also exhibits concentration-dependent secondary antioxidant activities like reducing power, metal-chelating activity, and inhibition of protein carbonylation. Further, ATDA at nM concentration prevented CuSO(4)-induced human LDL oxidation. ATDA demonstrated cytoprotective activity in primary hepatocytes and Ehrlich ascites tumor cells against oxidative stress inducing xenobiotics apart from the in vitro free-radical scavenging activity. The mechanism of cytoprotective action involved maintaining the intracellular glutathione, scavenging of reactive oxygen species, and inhibition of lipid peroxidation. It is suggested that ATDA is a novel bioactive molecule with potential health implications.
journal_name
Mol Cell Biochemjournal_title
Molecular and cellular biochemistryauthors
Srivastava A,Rao LJ,Shivanandappa Tdoi
10.1007/s11010-011-1196-4subject
Has Abstractpub_date
2012-05-01 00:00:00pages
1-9issue
1-2eissn
0300-8177issn
1573-4919journal_volume
364pub_type
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