Abstract
Cortisol partially prevents the harmful effect of gluten on the jejunal mucosa of patients with gluten-sensitive enteropathy. To investigate further the pathogenesis of this disorder, we analyzed the effect of cortisol in cultures of jejunal specimens obtained by biopsy. Cultures were done with and without gluten or cortisol. Morphology and alkaline phosphatase activity were assessed before and after 24 hours. Biopsies from untreated patients cultured with gluten showed low enzyme values and cuboidal epithelial cells before and after culture. Biopsies cultured in a gluten-free medium showed a threefold increase in enzyme values (P less than 0.01) and morphologic improvement with change to columnar epithelial cells. Cultures with gluten plus cortisol showed rises in alkaline phosphatase and morphologic improvement indistinguishable from cultures without gluten. Cortisol and gluten had no effect on cultures from appropriate controls. Cortisol thus prevents the harmful effects of gluten on biopsies from patients with gluten-sensitive enteropathy in vitro.
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