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. 1989 Mar;34(3):349-52.
doi: 10.1007/BF01536254.

Significant DQw1 association in achalasia

R K Wong  1 , C L Maydonovitch, S J Metz, J R Baker Jr
Affiliations

Significant DQw1 association in achalasia

R K Wong et al. Dig Dis Sci. 1989 Mar.

Abstract

Achalasia is a neuromuscular disorder of the esophagus with unknown etiology. There have been suggestions that this disorder is immunologically mediated. To examine this possibility, HLA phenotyping was prospectively performed on 40 patients with documented achalasia (24 Caucasian, 16 blacks). Results showed a positive association for the class II HLA antigen, DQw1, with 83% of Caucasians (P less than 0.02) and 86% of blacks having the antigen (NS). The relative risk for developing achalasia with the presence of DQw1 was 4.2 in Caucasians and 3.6 in blacks. A negative correlation for the DRw53 antigen was noted in Caucasian patients with a relative risk of 0.23. These results indicate an immunogenetic association for achalasia and provide insight into the pathogenesis of this disorder.

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