Electrical impedance model for evaluation of skin irritation in rabbits and humans

被引：20

作者：

Ferreira, D. M.

Silva, C. S.

Souza, M. N.

机构：

[1] Univ Fed Rio de Janeiro, COPPE, Program Biomed Engn, BR-21945970 Rio de Janeiro, Brazil

[2] Univ Fed Rio de Janeiro, Dept Social Hyg & Clin Anal, Rio De Janeiro, Brazil

[3] Univ Fed Rio de Janeiro, Dept Elect Engn, Rio De Janeiro, Brazil

来源：

SKIN RESEARCH AND TECHNOLOGY | 2007年 / 13卷 / 03期

关键词：

electrical impedance; non-invasive methods; irritation; skin; SLS;

D O I：

10.1111/j.1600-0846.2007.00217.x

中图分类号：

R75 [皮肤病学与性病学];

学科分类号：

100206 ;

摘要：

Background/aim: The electrical impedance method has been used as a quantitative technique for evaluating changes in the skin during irritation within the invisible range. The purpose of this study was to apply an electrical model of skin to the interpretation of impedance data after the application of an irritant (SLS) in the skin of humans and rabbits. Methods: Investigations were performed on 12 humans and 15 albino rabbits. Responses were evaluated by measuring electrical impedance before irritant exposure and 24 h after its removal and also by visual inspection. Using the raw impedance parameter, a novel index was developed and its value was correlated with visual scoring. Results: The derived impedance index showed a significant correlation with visual scores and its value decreased (P < 0.05) after irritant removal even without macroscopic signs of irritation. Conclusion: The proposed electrical model of skin seems to be suitable for the detection and interpretation of changes in the impedance characteristics of skin induced by SLS in rabbits and humans.

引用

页码：259 / 267

页数：9

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