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Toxicologic Implications of Cutaneous Barriers: a Molecular, Cellular, and Anatomical Overview by Abraar Karan; Ali Alikhan; Howard I. Maibach is a Environmental Science article available to read on EtoBox.

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## Abstract The skin barrier is a complex system of chemical, biological and physical processes that together regulate the admission and expulsion of foreign agents in contact with the skin. The eggresive movement of the stratum corneum (SC) is often a measure of its integrity, and transepidermal water loss has typically been a gold standard. However, the skin barrier has several barrier systems, such as ion flux, O~2~, CO~2~ and pH, which can give an informative and sometimes more sensitive measure of the SC condition. Furthermore, the penetrative interactions with the barrier have focused around occlusive methods to promote drug delivery, the interactions of topically applied drugs with the barrier and the presence of environmental agents that can harm the barrier. However, the nature of penetrative barrier interactions must also be elucidated on a microscopic level. The variable nature of barrier function is demonstrated when comparing the skin properties of neonates and adults. In addition, new biochemical methods have used keratin metrics to improve diagnostic efficacy and barrier integrity analysis. This review addresses the aforementioned aspects of the skin barriers that re

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Author

Abraar Karan; Ali Alikhan; Howard I. Maibach

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley; Research Square (ISSN 0260-437X)

Published

2009

Language

EN

Field

Environmental Science (Physical Sciences)