{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T23:40:42Z","timestamp":1792712442578,"version":"4.5.0"},"reference-count":34,"publisher":"S. Karger AG","issue":"5","license":[{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Skin Pharmacol Physiol"],"published-print":{"date-parts":[[2009]]},"abstract":"<jats:p>Although many mouse models of atopic dermatitis have been reported, few rat models have been studied. In this study, a rat chronic allergic dermatitis model was developed and evaluated as a pharmacological model of atopic dermatitis. Prominent ear thickening and scratching were induced after the application of 2,4-dinitrochlorobenzene to the right ear of Brown Norway rats 3 times per week for 3 weeks. Histopathologically, infiltration of T cells in the ear was observed on day 7, and eosinophils and mast cells were found in addition to T cells on day 21. The expression of interferon-\u03b3 and interleukin-4 was increased on day 7 when compared with normal rats. However, interferon-\u03b3 expression had disappeared by day 21. Tacrolimus ointment applied after ear tissue thickening fully developed, suppressed chronic dermatitis in a dose-dependent manner. This model has some symptomatic and histopathological similarities to atopic dermatitis and might be useful in pharmacological studies.<\/jats:p>","DOI":"10.1159\/000235551","type":"journal-article","created":{"date-parts":[[2009,8,19]],"date-time":"2009-08-19T14:21:35Z","timestamp":1250691695000},"page":"240-247","source":"Crossref","is-referenced-by-count":41,"title":["Characterization of a 2,4-Dinitrochlorobenzene-Induced Chronic Dermatitis Model in 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