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Metabolism of Plant Polyphenols in the Skin: Beneficial Versus Deleterious Effects

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Polyphenols are produced by all higher plants in order to protect them against biotic and abiotic stress such as UV radiation, temperature changes, infections, wounding, and herbivores.

When in contact with human skin, polyphenols exert either curative or damaging action depending on their physical-chemical properties, bioavailability through cutaneous barrier, metabolism in the skin, and individual sensitivity. This review will focus on 1) synthesis and metabolism of polyphenols and their role in the plant physiology, 2) non-enzymatic and enzymatic polyphenol transformation in the skin, 3) polyphenols as inhibitors or inducers of inflammatory response in the skin, and 4) photo-protective versus photo-toxic effects of polyphenols. The potential consequences of these controversial effects on the use of plant polyphenols in dermatology and cosmetology will be also discussed.

Keywords: Plant polyphenols; inflammation; non-enzymatic transformation; phase I and II metabolism; photoreactivity; skin

Document Type: Research Article

Publication date: October 1, 2008

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  • Current Drug Metabolism aims to cover all the latest and outstanding developments in drug metabolism and disposition. The journal serves as an international forum for the publication of timely reviews in drug metabolism. Current Drug Metabolism is an essential journal for academic, clinical, government and pharmaceutical scientists who wish to be kept informed and up-to-date with the latest and most important developments. The journal covers the following areas:

    In vitro systems including CYP-450; enzyme induction and inhibition; drug-drug interactions and enzyme kinetics; pharmacokinetics, toxicokinetics, species scaling and extrapolations; P-glycoprotein and transport carriers; target organ toxicity and interindividual variability; drug metabolism and disposition studies; extrahepatic metabolism; phase I and phase II metabolism; recent developments for the identification of drug metabolites and adducts.
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