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Article

Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population

  • Authors:
    • Yuchun Li
    • Liping Dai
    • Jianzhong Zhang
    • Peng Wang
    • Yurong Chai
    • Hua Ye
    • Jianying Zhang
    • Kaijuan Wang
  • View Affiliations / Copyright

    Affiliations: Department of Epidemiology, College of Public Health, Zhengzhou University, Henan 450001, P.R. China, Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, P.R. China, Henan Key Laboratory of Tumor Epidemiology, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China, Department of Epidemiology, College of Public Health, Zhengzhou University, Henan 450001, P.R. China
  • Pages: 107-112
    |
    Published online on: September 20, 2011
       https://doi.org/10.3892/ol.2011.426
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Abstract

A number of studies have shown that cyclooxygenase-2 (COX-2) gene polymorphisms were associated with gastric cancer. However, the results from different research groups have not been consistent. The present study aimed to investigate the association between polymorphisms of the cyclooxygenase-2 promoter region (-1195G>A, -765G>C) and gastric cancer patients with various degrees of relationship in the Chinese Han population. COX-2-1195G>A and COX-2‑765G>C polymorphisms in 296 gastric cancer patients and 319 control family members were genotyped using polymerase chain reaction-restriction fragment length polymorphism. An increased risk of gastric cancer was observed in subjects with the COX-2-1195AA genotype (OR=2.03; 95% CI, 1.27-3.22), and the association strength decreased as the degree of relationship decreased. Stratification analysis revealed that the OR value of COX-2-1195AA genotype and A carriers exhibited synergy with Helicobacter pylori (H. pylori) infection (AA genotype: OR=2.96; 95% CI, 1.57-5.58; A carriers: OR=2.04; 95% CI, 1.18-3.52). No significant difference was found in each genotype of COX-2-765G>C between gastric cancer patients and control family members, as well as gastric cancer patients with various degrees of relationship. Our study demonstrated that the polymorphism of COX-2-1195AA genotype may be a risk factor for gastric cancer patients with various degrees of relationship among the Chinese Han population. H. pylori infection therefore may enhance the risk of gastric cancer in individuals with the COX-2-1195 AA genotype.
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Copy and paste a formatted citation
Spandidos Publications style
Li Y, Dai L, Zhang J, Wang P, Chai Y, Ye H, Zhang J and Wang K: Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population. Oncol Lett 3: 107-112, 2012.
APA
Li, Y., Dai, L., Zhang, J., Wang, P., Chai, Y., Ye, H. ... Wang, K. (2012). Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population. Oncology Letters, 3, 107-112. https://doi.org/10.3892/ol.2011.426
MLA
Li, Y., Dai, L., Zhang, J., Wang, P., Chai, Y., Ye, H., Zhang, J., Wang, K."Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population". Oncology Letters 3.1 (2012): 107-112.
Chicago
Li, Y., Dai, L., Zhang, J., Wang, P., Chai, Y., Ye, H., Zhang, J., Wang, K."Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population". Oncology Letters 3, no. 1 (2012): 107-112. https://doi.org/10.3892/ol.2011.426
Copy and paste a formatted citation
x
Spandidos Publications style
Li Y, Dai L, Zhang J, Wang P, Chai Y, Ye H, Zhang J and Wang K: Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population. Oncol Lett 3: 107-112, 2012.
APA
Li, Y., Dai, L., Zhang, J., Wang, P., Chai, Y., Ye, H. ... Wang, K. (2012). Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population. Oncology Letters, 3, 107-112. https://doi.org/10.3892/ol.2011.426
MLA
Li, Y., Dai, L., Zhang, J., Wang, P., Chai, Y., Ye, H., Zhang, J., Wang, K."Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population". Oncology Letters 3.1 (2012): 107-112.
Chicago
Li, Y., Dai, L., Zhang, J., Wang, P., Chai, Y., Ye, H., Zhang, J., Wang, K."Cyclooxygenase-2 polymorphisms and the risk of gastric cancer in various degrees of relationship in the Chinese Han population". Oncology Letters 3, no. 1 (2012): 107-112. https://doi.org/10.3892/ol.2011.426
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