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Review
, 351, h4347

Celiac Disease and Non-Celiac Gluten Sensitivity

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Review

Celiac Disease and Non-Celiac Gluten Sensitivity

Benjamin Lebwohl et al. BMJ.

Abstract

Celiac disease is a multisystem immune based disorder that is triggered by the ingestion of gluten in genetically susceptible individuals. The prevalence of celiac disease has risen in recent decades and is currently about 1% in most Western populations. The reason for this rise is unknown, although environmental factors related to the hygiene hypothesis are suspected. The pathophysiology of celiac disease involves both the innate and adaptive immune response to dietary gluten. Clinical features are diverse and include gastrointestinal symptoms, metabolic bone disease, infertility, and many other manifestations. Although a gluten-free diet is effective in most patients, this diet can be burdensome and can limit quality of life; consequently, non-dietary therapies are at various stages of development. This review also covers non-celiac gluten sensitivity. The pathophysiology of this clinical phenotype is poorly understood, but it is a cause of increasing interest in gluten-free diets in the general population.

Conflict of interest statement

Competing interests: We have read and understood BMJ policy on declaration of interests and declare the following interests: PHRG serves on the scientific advisory boards of Alvine Pharmaceuticals and ImmusanT. The other authors have no competing interests.

Figures

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Fig 1 Increasing prevalence of celiac disease over time as illustrated by screening studies
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Fig 2 The pathogenesis of celiac disease involves a triad of predisposing genes (HLA-DQ2 and HLA-DQ8 haplotypes), dietary gluten, and other less well defined environmental factors. Innate and adaptive immune responses to gluten fragments at the small intestinal epithelium result in characteristic autoantibodies, histologic changes (intraepithelial lymphocytosis and villous atrophy), and clinical symptoms (such as diarrhea or iron deficiency anemia). Adapted, with permission, from Green and colleagues

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