Comprehensive epidemiological and genotype-phenotype analyses in a large European sample with idiopathic achalasia
Comprehensive epidemiological and genotype-phenotype analyses in a large European sample with idiopathic achalasia
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DOI:
10.1097/meg.0000000000000602
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发表时间:
2016-06-01
影响因子:
2.1
通讯作者:
Schumacher, Johannes
中科院分区:
文献类型:
--
作者:
Becker, Jessica;Niebisch, Stefan;Schumacher, Johannes
Background and aim Although an eight-residue insertion in HLA-DQ beta 1 has been recently identified as a genetic risk factor for idiopathic achalasia, other risk factors are still unknown. In the present study, we carried out an epidemiological survey and a genotype-phenotype (G x P) analysis to gain further insights into the etiology of achalasia.Methods We obtained medical data from 696 achalasia patients and 410 controls, as well as their first-degree relatives (2543 of patients and 1497 of controls). For the Gx P analysis, we stratified the patients into HLA-DQ beta 1 insertion carriers and noncarriers.Results Our data show that patients are more often affected by viral infections before achalasia onset (P