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Antioxidant effects of geraniin via scavenging reactive oxygen species

The present study was to investigate the antioxidant effect of geraniin against free radicals. We found that geraniin scavenged the hydroxyl radicals. which were measured by electron spin resonance (ESR) spectrometry. Geraniin scavenged the DPPH radicals in cell free system. Furthermore, geraniin reduced intracellular reactive oxygen species (ROS) detected by 2'7’-dichlorodihydrofluorescein (DCF-DA) dye. Our data suggested that geraniin showed antioxidant effects via scavenging reactive oxygen species.