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Title: Association of 4p14 TLR locus with antibodies to Helicobacter pylori.
Authors: Sung H,  Camargo MC,  Yu K,  Weinstein SJ,  Morgan DR,  Albanes D,  Rabkin CS
Journal: Genes Immun
Date: 2015 Dec
Branches: ITEB, IIB
PubMed ID: 26312625
PMC ID: PMC4670272
Abstract: A genome-wide association study among Europeans related polymorphisms of the Toll-like receptor (TLR) locus at 4p14 and the Fcγ receptor 2a locus at 1q23.3 to Helicobacter pylori serologic status. We replicated associations of 4p14 but not 1q23.3 with anti-Helicobacter pylori antibodies in 1402 Finnish males. Importantly, our analysis clarified that the phenotype affected by 4p14 is quantitative level of these antibodies rather than association with seropositivity per se. In addition, we annotated variants at 4p14 as expression quantitative trait loci (eQTL) associated with TLR6/10 and FAM114A1. Our findings suggest that 4p14 polymorphisms are linked to host immune response to H. pylori infection but not to its acquisition.