Paradoxical actions of antioxidants in the oxidation of low density lipoprotein by peroxidases.

Abstract

Oxidation of LDL by peroxidases has been suggested to be a model for in vivo oxidation. The mechanism might involve the generation of an intermediate radical such as a phenoxy radical. We show that, in contrast to the oxidation of LDL by copper, oxidation by peroxidase system (H2O2/horse radish peroxidase) showed less resistance. This suggested that either… (More)

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