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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/8374


    Title: Single-Nucleotide Polymorphism of the Exo1 Gene: Association with Gastric Cancer Susceptibility and Interaction with Smoking in Taiwan
    Authors: Bau, DT;Bau, Da-Tian;Wang, HC;Wang, Hwei-Chung;Liu, CS;Liu, Chiu-Shong;Chang, CL;Chang, Chia-Lin;Chiang, SY;Chiang, Su-Yin;Wang, RF;Wang, Rou-Fen;Tsai, CW;Tsai, Chia-Wen;Lo, YL;Lo, Yen-Li;Hsiung, CA;Hsiung, Chao A.;Lin, CC;Lin, Cheng-Chieh;Huang, CY;Huang, Chih-Yang
    Contributors: 保健系
    Keywords: Exo1;polymorphism;gastric cancer;carcinogenesis
    Date: 2009-12
    Issue Date: 2010-03-26 10:46:12 (UTC+8)
    Publisher: Asia University
    Abstract: Exonuclease 1 (Exo1) is an important nuclease involved in the mismatch repair system that contributes to the maintenance of genomic stability, modulation of DNA recombination and mediation of cell cycle arrest. Potential polymorphisms in Exo1 may alter cancer risks by influencing the repair activity of Exo1. We hypothesized that single-nucleotide poly in orph isms (SNPs) in Exo1 might be associated with risks of gastric cancer. In this hospital-based study, the association of Exo1 A-1419G (rs3754093), C-908G (rs10802996), A238G (rs1776177), C498T (rs1635517), K589E (rs1047840), G670E (rs1776148), C723R (rs1635498), 1,75711 (rs9350) and C3114T (rs851797) polymorphisms with gastric cancer risk in a central Taiwanese population was investigated. In total, 179 patients with gastric cancer and 179 age- and gender-matched healthy controls recruited from the China Medical Hospital in central Taiwan were genotyped. A significantly different distribution was found in the frequency of the Exo1 K589E genotype, but not the other genotypes, between the gastric cancer and control groups. The A allele Exo1 K589E conferred a significant (P = 0.0094) increased risk of gastric cancer. Gene-environment interactions with smoking were significant for Exo1 K589E polymorphism, which showed that the Exo1 K589E AG/AA genotype in association with smoking conferred an increased risk of 2.07-fold (95% confidence interval = 1.22-3.50) for gastric cancer. Our results provide the first evidence that the A allele of the Exo1 K589E may be associated with the development of gastric cancer and may be 21 novel and useful marker for primary prevention and anticancer intervention.
    Relation: CHINESE JOURNAL OF PHYSIOLOGY, 52(6):411-418.
    Appears in Collections:[食品營養與保健生技學系] 期刊論文

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