The remaining SNPs (IL-17A, rs2275913, rs8193036; IL-10, rs1800896; MTHFR, rs1801133; COX-2, rs20417; XRCC1, rs1799782, rs25487, rs861539; NAT2, rs1799929, rs1799930, phenotype; GSTM1; GSTT1; ERCC5, rs751402; TGFBR2, rs3773651; VDR, rs731236) are also significantly associated with the risk of gastric cancer. This evidence concerns the gene MTHFR and gastric cancer.