2001•PubMedRequires access

Study of antioxidant effect of apigenin, luteolin and quercetin by DNA protective method.

D Romanová, A Vachálková, Luboš Čipák, Z Ovesná, P Rauko

Abstract

A DNA protective capacity of three flavonoids, apigenin (AP), luteolin (LU) and quercetin (QU) against free radicals generated by H202, resp. Fe2+ is reported. This effect corresponding with scavenging of free radicals or with chelating of iron was assayed at two concentrations of flavonoids studied (1 microM and 10 microM). The quantitative analysis has shown that LU possesses the highest DNA protective effect of flavonoids investigated in the presence of H2O2. On the other hand, in the presence of 10 microM Fe2+, AP exhibited the highest DNA protective effect at the concentration of 1 microM and the following order was reached at the stoichiometric concentrations (10 microM) of Fe2+. It is believed that this discrepancy is caused by the ability of LU and QU iron-complex formation as it was separately investigated using UV-VIS spectrometry.

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Key concepts: Apigenin, Luteolin, Chemistry, Quercetin, Antioxidant, Radical, DNA, Flavonoid