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THE RETENTION OF CORTICOSTEROID IN THE SKIN AFTER TOPICAL APPLICATION TO PSORIASIS VULGARIS Tohru MATSUZAWA 1 , Atsushi KUKITA 1 1Department of Dermatology, Sapporo Medical College pp.118-119,139-143
Published Date 1970/2/1
DOI https://doi.org/10.11477/mf.1412200614
  • Abstract
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Radioautographic studies on the retention of corticosteroid in the skin after topical application to the lesion of psoriasis vulgaris were performed.

Fluocinolone acetonide cream which was labeled with C14 in the acetonide base, was applied for 24 hours by ODT on the psoriatic lesion. Immediately after the application of 24 hours' ODT, markedly increased radioactivity was proved in the horny and malpighian layers of the epider-mis. The margin was markedly defined between the basal layer and the dermis. This finding suggested that the second barrier against the skin absorption might exist at the basal layer of the epidermis.

Autoradiogram, 3 days after suspension of topical application of ODT, showed that radioacti-vity was found slightly in the epidermis and hair follicles.

Seven days after the suspension, no radioactivity was proved in one case, but trace of it was proved especially on the superficial malpighian layer in another case with mild change histologically.

The findings suggested that there might be the retention of the steroid in the lesion of psoriasis vulgaris. But the retention time was a little shorter than normal skin. It might have some correlation with accelerated turnover time of the psoriatic epidermis.


Copyright © 1970, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1324 印刷版ISSN 0021-4973 医学書院

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