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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Antioxidant-based topical formulations influence on the inflammatory response of Japanese skin: A clinical study using non-invasive techniques

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Author(s):
Wagemaker, Tais A. L. ; Maia Campos, Patricia M. B. G. ; Shimizu, Kenji ; Kyotani, Daiki ; Yoshida, Daisuke
Total Authors: 5
Document type: Journal article
Source: EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS; v. 117, p. 195-202, AUG 2017.
Web of Science Citations: 1
Abstract

Cutaneous irritants exposure induces an excess of ROS in the skin and can ensue an inflammatory response. Topical antioxidant-based formulations can help to counteract ROS generation. This study evaluated the influence of antioxidant-based topical formulations on the inflammatory response of skin, using a combination of in vivo real-time non-invasive techniques. Nine test areas were defined on each volar forearm of the 25 Japanese volunteers. Measurements were performed before and after treatment with 15 mu L of a 5% sodium dodecyl sulfate solution and 15 mu L of the same based formulation or the vehicle with 1% of the antioxidants. Volunteers without antioxidant treatment showed more pronounced erythematous areas. Transepidermal water loss of areas treated with green tea polyphenol (GTP)-based formulation showed fully recovered skin. Skin barrier damage caused by repeated applications of SDS showed characteristic alterations, detectable by in vivo confocal microscopy such as desquamation, spongiosis and inflammatory infiltrates. The majority of confocal microscopy inflammation signs were found in skin without treatment followed by the vehicle. Ascorbyl tetraisopalmitate, Coenzyme Q(10), GTP- and Resveratrol-based formulations reduced the anti-inflammatory cytokines release and attenuated inflammatory signs. The combination of techniques provides results that highlight the importance of antioxidant-based formulations for rapid skin recovery. (C) 2017 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 14/11947-1 - Development of a novel method to measure in vivo antioxidant activity of dermocosmetic products using biophysical techniques: a link between oxidative stress and its role in skin inflammatory process
Grantee:Tais Aleriana Lucon Wagemaker
Support Opportunities: Scholarships in Brazil - Post-Doctoral