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Two patients are described with Crohn's disease and selective IgA deficiency. Serum IgA was undetectable in each case, and immunoperoxidase studies of the lamina propria showed a gross diminution of IgA-bearing plasma cells. Peripheral blood lymphocytes, however, showed normal numbers of IgA-bearing lymphocytes. The typical clinical course and histology in these two patients suggest that IgA-mediated responses in the mucosa are not involved in the pathogenesis of Crohn's disease.

Type

Journal article

Journal

Gut

Publication Date

08/1977

Volume

18

Pages

644 - 646

Keywords

Adult, Crohn Disease, Dysgammaglobulinemia, Female, Humans, Immunoglobulin A, Immunologic Deficiency Syndromes, Leukocyte Count, Lymphocytes, Male, Middle Aged