疱疹样皮炎(DH)是一种以 IgA 沉积于非累及部位的真皮乳头为特征的慢性疱性皮肤病。93%的病人有小肠粘膜异常,表现为肠上皮淋巴细胞数量增多,绒毛萎缩。肠病及发疹与食用谷胶有关,无谷胶食物可使疾病得到缓解。然而本病的发生与肠道变化的关系还没有得到满意的解释。在 DH 病人中,是否存在遗传性小肠粘膜对大分子通透性增加,致使某些特定食物抗原特别是谷胶通透性增 Herpetic dermatitis (DH) is a chronic bullous dermatosis characterized by dermal papilla where IgA deposits on non-involved sites. 93% of patients had small intestinal mucosal abnormalities, manifested as an increase in the number of intestinal epithelial lymphocytes, villous atrophy. Intestinal disease and rash and consumption of g..blocked words..ed, gluten-free food can make the disease eased. However, the occurrence of this disease and the relationship between intestinal changes have not been satisfactorily explained. In DH patients, the existence of hereditary intestinal mucosa increased permeability of macromolecules, resulting in certain food-specific antigen, especially glutinous gum permeability increased