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  • Title: [Correlation of polymorphism of Nme1-1465 T>C and TGFβ1-509 T>C with genetic susceptibility of gastric carcinoma].
    Author: Lin XD, Li C, Shi Y, Chen Y, Zhang LY, Zheng XW.
    Journal: Zhonghua Bing Li Xue Za Zhi; 2010 Oct; 39(10):681-5. PubMed ID: 21176535.
    Abstract:
    OBJECTIVE: To explore the correlation of functional genetic variants in Nme1-509 C>T and TGFβ1-1465 T>C genes to the genetic susceptibility of gastric carcinoma in Fujian province, China. METHODS: A case-control study was conducted in a population in Fujian province. The polymorphism of TGFβ1-509 C>T (rs1800469), Nme1-1465 T>C (rs16949649) in 273 gastric carcinoma patients and 277 cancer-free controls, frequency-matched by age and sex, were analysed by using Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF-MS). Adjusted odds ratios (OR) and 95% confidence evaluation intervals (95%CI) measured by multivariate Logistic regression analysis were adopted in studying the correlation of the gene polymorphism with the susceptibility of gastric cancer. RESULTS: After the adjustment using Logistic regression or the potential confounding effects of gender and age, as compared with TT+CT genotype gastric carcinoma patients, the homozygous Nme1-1465CC genotype carriers had a significantly higher risk in lymph node metastasis, with the OR of 2.5 (95%CI 0.08-2.10; P=0.029). There was no association obtained between TGFβ1-509 T>C genotype with the tumor size, cell differentiation, tumor invasion and lymph node metastasis in gastric carcinoma. In the intestinal type gastric carcinoma group, when compared with the wild homozygous Nme1 TT* TGFβ1 CC, Nme1 TC* TGFβ1 TC, Nme1 TC* TGFβ1 TT and Nme1 CC* TGFβ1 TC genotype carriers, there was a significantly decrease of risk in gastric carcinogenesis of 0.42 fold (95%CI 0.54-0.94, P=0.022), 0.32 fold (95%CI 0.42-0.97, P=0.013) and 0.26 fold (95%CI 0.42-0.97, P=0.008), respectively. CONCLUSIONS: There is a significant relationship between polymorphism of Nme1-1465 T>C and the prognosis of carcinoma of stomach. It also demonstrates that coexistence of Nme1-1465 T>C and TGFβ1-509 T>C genes may provide a synergistic effect of increasing the susceptibility of gastric carcinogenesis.
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