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Published in: BMC Cancer 1/2010

Open Access 01-12-2010 | Research article

Methylenetetrahydrofolate reductase C677T polymorphism in patients with gastric and colorectal cancer in a Korean population

Authors: Lian-Hua Cui, Min-Ho Shin, Sun-Seog Kweon, Hee Nam Kim, Hye-Rim Song, Jin-Mei Piao, Jin-Su Choi, Hyun Jeong Shim, Jun Eul Hwang, Hyeong-Rok Kim, Young-Kyu Park, Soo-Hyun Kim

Published in: BMC Cancer | Issue 1/2010

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Abstract

Background

This study was designed to investigate an association between the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and the risk of gastric and colorectal cancer in the Korean population.

Methods

We conducted a population-based large-scale case-control study involving 2,213 patients with newly diagnosed gastric cancer, 1,829 patients with newly diagnosed colorectal cancer, and 1,700 healthy controls. Genotyping was performed with peripheral blood DNA for MTHFR C677T polymorphisms. The statistical significance was estimated by logistic regression analysis.

Results

The MTHFR C677T frequencies of CC, CT, and TT genotypes were 35.2%, 47.5%, and 17.3% among stomach cancer, 34%, 50.5%, and 15.5% in colorectal cancer, and 31.8%, 50.7%, and 17.5% in the controls, respectively. The MTHFR 677TT genotype showed a weak opposite association with colorectal cancer compared to the homozygous CC genotype [adjusted age and sex odds ratio (OR) = 0.792, 95% confidence interval (CI) = 0.638-0.984, P = 0.035]. Subjects with the MTHFR 677CT showed a significantly reduced risk of gastric cancer compared whose with the 677CC genotype (age- and sex-adjusted OR = 0.810; 95% CI = 0.696-0.942, P = 0.006). We also observed no significant interactions between the MTHFR C677T polymorphism and smoking or drinking in the risk of gastric and colorectal cancer.

Conclusions

The T allele was found to provide a weak protective association with gastric cancer and colorectal cancer.
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Metadata
Title
Methylenetetrahydrofolate reductase C677T polymorphism in patients with gastric and colorectal cancer in a Korean population
Authors
Lian-Hua Cui
Min-Ho Shin
Sun-Seog Kweon
Hee Nam Kim
Hye-Rim Song
Jin-Mei Piao
Jin-Su Choi
Hyun Jeong Shim
Jun Eul Hwang
Hyeong-Rok Kim
Young-Kyu Park
Soo-Hyun Kim
Publication date
01-12-2010
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2010
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/1471-2407-10-236

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