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R L Dobson

Publications and source records attributed to R L Dobson.

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Immunofluorescence in skin specimens from three different biopsy sites in patients with scleroderma.

Immunofluorescence (IF) data from three different biopsy sites (nailfold, forearm, buttock) were studied in 18 patients with scleroderma (SD, systemic sclerosis) and the results compared with those obtained from 10 normal controls (NC) and 7 patients with systemic lupus erythematosus (SLE). Immunoglobulin (Ig) deposits were detected by direct IF technique at the dermo-epidermal junction (DEJ) in 8/14 nailfolds, 6/15 forearms and in none of the buttock specimens of SD patients. Epidermal nuclear staining was present in 6/14 nailfolds, and in 6/15 forearms and buttocks. The most prominent finding was the observation of multiple Ig deposits in the cuticle of 9/14 patients with SD. NC group was negative in all sites for epidermal nuclear staining and the only DEJ deposit occurred in the forearm of one subject. In conclusion, this study demonstrates that Ig deposits in SD, both at the DEJ and in the epidermal nuclei, occur more often than previously reported and are especially frequent in the nailfold & cuticle area.

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