Nine variants on nine genes were rated as presenting strong cumulative epidemiological evidence for a nominally significant association with GC risk, including <i>APE1</i> (rs1760944), <i>DNMT1</i> (rs16999593), <i>ERCC5</i> (rs751402), <i>GSTT1</i> (null/presence), <i>MDM2</i> (rs2278744), <i>PPARG</i> (rs1801282), <i>TLR4</i> (rs4986790), <i>IL-17F</i> (rs763780), and <i>CASP8</i> (rs3834129).
This meta-analysis demonstrated that rs16999593 and rs1550117 could contribute to GC risk and that rs1569686 might be a protective factor against gastric carcinogenesis.
We found that rs16999593 in DNMT1, rs11254413 in DNMT2 and rs13420827 in DNMT3A were significantly associated with GC susceptibility (OR 1.45, 0.15, 0.66, respectively; 95% CI 1.00-2.11, p = 0.047; 0.08-0.27, p < 0.01; 0.45-0.97, p = 0.034, respectively, overdominant model).