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Barrett's esophagus is an increasingly common disease that is strongly associated with reflux of stomach acid and usually a hiatus hernia, and it strongly predisposes to esophageal adenocarcinoma (EAC), a tumor with a very poor prognosis. We report the first genome-wide association study on Barrett's esophagus, comprising 1,852 UK cases and 5,172 UK controls in the discovery stage and 5,986 cases and 12,825 controls in the replication stage. Variants at two loci were associated with disease risk: chromosome 6p21, rs9257809 (Pcombined=4.09×10(-9); odds ratio (OR)=1.21, 95% confidence interval (CI)=1.13-1.28), within the major histocompatibility complex locus, and chromosome 16q24, rs9936833 (Pcombined=2.74×10(-10); OR=1.14, 95% CI=1.10-1.19), for which the closest protein-coding gene is FOXF1, which is implicated in esophageal development and structure. We found evidence that many common variants of small effect contribute to genetic susceptibility to Barrett's esophagus and that SNP alleles predisposing to obesity also increase risk for Barrett's esophagus.

Original publication




Journal article


Nature genetics

Publication Date





1131 - 1136


Wellcome Trust Centre for Human Genetics, Oxford, UK.


Esophageal Adenocarcinoma Genetics Consortium, Wellcome Trust Case Control Consortium 2, Chromosomes, Human, Pair 16, Humans, Barrett Esophagus, Genetic Predisposition to Disease, Case-Control Studies, Major Histocompatibility Complex, Gene Frequency, Linkage Disequilibrium, Polymorphism, Single Nucleotide, Models, Genetic, Adult, Aged, Middle Aged, Female, Male, Genome-Wide Association Study, Genetic Loci