title: Skin surface electrical potential as an indicator of skin condition: observation of surfactant-induced dry skin and middle-aged skin.
abstract: We previously reported that skin surface electrical potential might be a good parameter of skin pathophysiology. To examine the potential availability of skin surface electrical potential measurement for diagnostic purposes, we measured the change of the potential in surfactant-induced dry skin and we compared the values of the potential in volunteers of different age groups. We also measured trans-epidermal water loss (TEWL) in the same groups. The skin surface electrical potential was significantly increased after sodium dodecyl sulphate treatment, and the alteration was much more marked than that of TEWL. Further, a significant difference in skin surface electrical potential was observed between young- and middle-aged volunteers, although there was no significant difference in TEWL between the two groups. These results suggest that skin surface electrical potential may be a good indicator of the pathophysiological state of the living layer of epidermis.
authors: Eriko
authors: E
authors: Kawai
authors: Noriyuki
authors: N
authors: Kumazawa
authors: Koichiro
authors: K
authors: Ozawa
authors: Mitsuhiro
authors: M
authors: Denda