[No authors listed]
BACKGROUND:Serum uric acid (SUA), hyperuricemia (HUA) and gout are complex traits with relatively high heritability. This study aims to identify whether a candidate gene, SLC28A2, exerts susceptibility for SUA fluctuation and incidence of HUA and gout in the Han Chinese population. RESULTS:Three sample sets of 1376 gout patients, 1290 long-term HUA subjects (no gout attack) and 1349 normouricemic controls were recruited for this study. Eight polymorphisms in the SLC28A2 gene were genotyped using the ligase detection reaction-polymerase chain reaction (LDR-PCR) technology. Rs16941238 showed the most significant associations with SUA level (minor allele "A", BETAâ=â-â13.84âμmol/L, Pâ=â0.0041, Ppermâ=â0.0042) and HUA (ORâ=â0.7734, Pâ=â0.0033, Ppermâ=â0.0020), but not with gout (ORâ=â0.8801, Pâ=â0.1315, Ppermâ=â0.1491). Rs2271437 was significantly associated with gout (minor allele "G", ORâ=â1.387, Pâ=â0.0277, Ppermâ=â0.0288), and was further confirmed in the meta-analysis with the previously published gout GWAS dataset (ORâ=â1.3221, Pâ=â0.0089). Each variant basically conferred consistent OR direction on gout and HUA, compared with the normouricemic control. CONCLUSIONS:Our findings support the associations of the SLC28A2 gene with the SUA level, the HUA phenotype and gout in Han Chinese.
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