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J Invest Dermatol. 1977 Nov;69(5):458-62.

Corticosteroid-induced dermal atrophy in the rat.


Corticosteroid-induced dermal atrophy has been studied in the rat using daily application of ethanolic solutions to small areas of flank skin. After 12 days of treatment, the degree of atrophy was determined by comparing the weights of skin plugs (16 mm diameter) taken from the treated areas with contralaterally paired control areas. Doses can be adjusted so that systemic effects are minimized and only local effects are observed. Hydrocortisone, hydrocortisone butyrate, dexamethasone, betamethasone, desonide and triamcinolone acetonide all produce atrophy in the rat, and the degree of thinning is dose dependent. Potencies in the dermal atrophy assay compare directly with topical anti-inflammatory potencies in the rat, and the presence of fluorine in the steroid molecule is not a determining factor in the production of atrophy.

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