[Immunohistologic studies of differential HLA expression in patients with various intestinal diseases].

Histocompatibility antigens (HLA) play an important part in immunoregulation and in cell differentiation. This study analyses the expression of HLA class I and class II antigens (DR, DP, DQ) in intestinal biopsy specimen from patients with Crohn's disease, ulcerative colitis, GvHD, radiation colitis and intestinal adenomas using the indirect immunoperoxidase technique. 92 of 94 inflamed specimen from patients with inflammatory bowel disease showed a neoexpression of HLA II (DR greater than DP greater than DQ) on their epithelial cells.

[Cefotaxime-induced allergic agranulocytosis in an acute attack of serologically atypical primary biliary cirrhosis].

A 35-year-old woman developed pharyngitis with high fever and painful joint swellings. A severe cholestatic hepatitis occurred 40 days later with a rise of bilirubin to 32 mg/dl. "Nuclear dot" antibodies were demonstrated in the immunofluorescence test on cell cultures, confirming a diagnosis of primary biliary cirrhosis which had followed an atypical course.