Increased prevalence of autoimmune diseases in first-degree relatives of patients with celiac disease

被引:39
作者
Cataldo, F [1 ]
Marino, V [1 ]
机构
[1] Univ Palermo, Pediat Clin R, Palermo, Italy
关键词
celiac disease; autoimmune disorders;
D O I
10.1097/00005176-200304000-00009
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background: The prevalence of autoimmune disorders is increased in patients with celiac disease (CD), and it is unknown whether their first-degree relatives also have a high risk of autoimmune disorders. Methods: To assess the prevalence of autoimmune diseases in first-degree relatives of CD patients, the authors looked for autoimmune disorders in 225 first-degree relatives of 66 children with CD (group A) and in 232 first-degree relatives of 68 healthy children (group B). For both groups, serologic screening for CD was performed through antiendomysium (ENIA) and tissue transglutaminase autoantibodies (tTGAA). EMA-and tTGAA-positive subjects were offered an intestinal biopsy. The age at onset of autoimmune diseases was also recorded in group A. Results: The prevalence of autoimmune disorders was significantly (P = 0.028) higher in group A (11 of 225, 4.8%) than in group B (2 of 232, 0.86%). In relatives of CD patients, the prevalence increased with age (chi(2) for trend, 43.5 P < 0.0001). Serologic screening for CD was only positive in group A (15 of 225 Subjects). An intestinal biopsy was performed in 13 of these 15 relatives (2 refused biopsy). Eleven of 13 had flat mucosa, With subclinical or silent forms of CD. The prevalence of autoimmune diseases in the EMA- and tTGAA-positive relatives of CD patients was significantly higher (3 of 15, 20% P = 0.028 odds ratio, 6.3 95% Cl, 1/0.21-1/0.11, 4.9-7.6) than in those who were ENIA and tTGAA negative (8/210, 3.8%). Conclusions: The first-degree relatives of CD patients have an increased risk of autoimmune diseases, most likely connected with unrecognized subclinical or silent forms of CD.
引用
收藏
页码:470 / 473
页数:4
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