Abstract
In Hexi area of Gansu Province, people have a higher susceptibility of gastric cancer than people in the rest area of China. There is substantial geographic variation in the incidence of gastric cancer. In this article, the present author explored the roles of H. pylori infection and IL-10 promoter polymorphisms in development of gastric cancer in this area. A total of 304 participants were admitted to our study, and they were divided into two groups: control group and case group. Blood samples from all subjects were collected for gene extraction using DNA extraction kits. IL-10 polymorphisms were determined by SNaPshot Multiplex. To test H. pylori infection and its typing H. pylori antibody Immunoblotting Kits were used. This research suggested that environmental factor played an important role in the pathogenesis of gastric carcinoma in the area, H. pylori infection increased the risk of gastric cancer (OR = 2.612, 95% CI 1.636–4.170) and subject with H. pylori I-type positive was at significantly higher risk for progression to gastric cancer (OR = 4.712, 95% CI 2.656–8.537). For subjects with the ATA/GCC or GCC/GCC haplotype of the IL-10−1082/−819/−592 polymorphism relative to the ATA/ATA haplotype group, the risk of gastric cancer development was significantly increased. It has been demonstrated that the presence of IL-10−819 C alleles and IL-10−592 C alleles was associated with an increased risk for gastric cancer development in H. pylori-infected patients and IL-10 promoter polymorphisms and H. pylori have a synergistic effect on gastric cancer in Hexi population.
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This research was supported by National Natural Science Foundation of China (No. 30870364).
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Zeng, X., Li, Y., Liu, T. et al. Diverse H. pylori strains, IL-10 promoter polymorphisms with high morbidity of gastric cancer in Hexi area of Gansu Province, China. Mol Cell Biochem 362, 241–248 (2012). https://doi.org/10.1007/s11010-011-1149-y
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DOI: https://doi.org/10.1007/s11010-011-1149-y