In this preliminary data, the association with MDR1 C3435T polymorphism and risk for developing H. pylori-related gastric cancer and peptic ulcer in Japanese was low.
Generally, indels rs34743033 and rs16430 were genotyped by PCR and polyacrylamide gel electrophoresis assay and SNPs rs2032582 and rs1045642 were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay in 110 Chinese AGC patients post-chemotherapy.
To investigate the impacts of gene variations on survival outcomes of advanced gastric cancer (AGC) patients treated with 5‑fluorouracil (5-FU)-based chemotherapy, we analyzed the associations of 2 indels of the TS gene rs34743033 (double or triple tandem repeats of a 28 bp sequence in 5'-UTR, denoted as 2R or 3R allele) and rs16430 (a 6 bp variation at 1494 bp in 3'-UTR, denoted as ins6 or del6 allele) and 2 single nucleotide polymorphisms (SNPs) of ABCB1gene rs2032582 in exon 21 and rs1045642 in exon 26, with clinical outcomes after 5‑FU treatment.