Polyphenol-hydrogen peroxide reactions in skin : In vitro model relevant to study ROS reactions at inflammation

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Polyphenol-hydrogen peroxide reactions in skin : In vitro model relevant to study ROS reactions at inflammation

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Publication Article, peer reviewed scientific
Title Polyphenol-hydrogen peroxide reactions in skin : In vitro model relevant to study ROS reactions at inflammation
Author Eskandari, Mahboubeh ; Rembiesa, Jadwiga ; Startaite, Lauryna ; Holefors, Anna ; Valanciute, Audrone ; Faridbod, Farnoush ; Ganjali, Mohammad Reza ; Engblom, Johan ; Ruzgas, Tautgirdas
Research Centre Biofilms - Research Center for Biointerfaces
Date 2019
English abstract
Antioxidants are important to protect and maintain biological barriers, such as the skin. Antioxidant effects are often assessed using clinical trials, however these tests are costly and time consuming. In this work we introduce a skin membrane-covered oxygen electrode (SCOE) as an in vitro tool for monitoring H2O2 and antioxidant reactions in skin. The SCOE gives amperometric response to H2O2 concentrations down to 0.05 mM. More importantly, the electrode allows measurements of polyphenol penetration and reaction with H2O2 in skin. Measurements with SCOE show that lipophilic polyphenols such as quercetin, piceatannol, resveratrol, and plant extract from Plantago major impose their antioxidant effect in skin within 2-20 min. Rutin is however too hydrophilic to penetrate into stratum corneum and therefore cannot deliver its antioxidant effect during similar time interval. The measurements are interpreted considering polyphenol partition-penetration through stratum corneum and the reaction with the H2O2-catalase system in the skin. The contribution of other enzymes will be addressed in the future. (C) 2019 Elsevier B.V. All rights reserved.
DOI https://doi.org/10.1016/j.aca.2019.05.032 (link to publisher's fulltext.)
Publisher Elsevier
Host/Issue Analytica Chimica Acta;
Volume 1075
ISSN 0003-2670
Language eng (iso)
Subject Skin
Oxygen electrode
Antioxidants
Reactive oxygen species
Polyphenols
Inflammation
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/30126 Permalink to this page
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