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Genetic polymorphisms in folate metabolism and the risk of stomach cancer.
- Source :
-
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology [Cancer Epidemiol Biomarkers Prev] 2007 Jan; Vol. 16 (1), pp. 115-21. - Publication Year :
- 2007
-
Abstract
- Folate deficiency has been implicated in the etiology of stomach cancer through abnormal DNA methylation and disrupted DNA synthesis and repair. Enzyme-coding genes involved in folate metabolism are often polymorphic. In a population-based study of 305 cases and 427 controls in Warsaw, Poland, we evaluated the risk of stomach cancer in relation to polymorphisms in folate-metabolizing genes, including MTHFR (Ex5+79C>T and Ex8-62A>C), MTR (Ex26-20A>G), and MTRR (Ex2-64A>G, Ex5+123C>T, Ex15+572C>T, Ex15-405A>T, Ex9-85C>T, Ex15-526G>A, and Ex14+14C>T). Polymorphisms in the MTHFR gene were not associated with stomach cancer risk. No notable effect was found for polymorphisms in MTR or MTRR either, although MTR Ex26-20 A>G and MTRR Ex5+123C>T polymorphisms were associated with a borderline increased risk of stomach cancer (MTR Ex26-20A>G, AG/GG versus AA: odds ratio, 1.35; 95% confidence interval, 0.96-1.90; MTRR Ex5+123C>T, CT/TT versus CC: odds ratio, 1.30; 95% confidence interval, 0.93-1.82). We did not find significant interactions between polymorphisms in MTHFR, MTR, and MTRR genes and dietary folate and alcohol consumption. Our study did not identify strong genetic determinants in the folate metabolism pathway for stomach cancer risk.
- Subjects :
- Adult
Aged
Case-Control Studies
DNA Methylation
Female
Folic Acid blood
Genotype
Humans
Male
Methylenetetrahydrofolate Reductase (NADPH2) genetics
Middle Aged
Odds Ratio
Risk Factors
Stomach Neoplasms blood
Folic Acid metabolism
Genetic Predisposition to Disease
Polymorphism, Genetic
Stomach Neoplasms metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1055-9965
- Volume :
- 16
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
- Publication Type :
- Academic Journal
- Accession number :
- 17220339
- Full Text :
- https://doi.org/10.1158/1055-9965.EPI-06-0513