Digestive diseases and sciences · 2009
Interleukin10 -592 promoter polymorphism associated with gastric cancer among Asians: a meta-analysis of epidemiologic studies.
СтатьяМетаанализПоддержка исследования: вне правительства СШАОбзорНазвание и аннотация: Перевод пока не подготовлен
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Zhuang Wen, Wu Xiao-Ting, Zhou Yong, Liu Liu, Liu Guan-Jian, Wu Tai-Xiang, Yao Xun, Du Liang, Wei Mao-Ling
Аннотация
PURPOSE: Studies investigating the association between interleukin10 (IL10) -592 promoter polymorphism and gastric cancer risk report conflicting results. The objective of this study was to quantitatively summarize the evidence for such a relationship.
METHODS: Two investigators independently searched the MEDLINE and Embase databases. This meta-analysis included ten case-control studies, which included 1,715 gastric cancer cases and 2,783 controls.
RESULTS: The combined results based on all studies showed that there was no significant difference in genotype distribution (AA odds ratio [OR] = 0.88, 95% confidence interval [CI] = 0.66, 1.18; AC OR = 1.09, 95% CI = 0.95, 1.24; CC OR = 1.03, 95% CI = 0.89, 1.18) between gastric cancer and noncancer patients. When stratifying for race, the results were similar, except that patients with gastric cancer had a significantly lower frequency of AA (OR = 0.67, 95% CI = 0.52, 0.87) and a higher frequency of AC (OR = 1.34, 95% CI = 1.07, 1.68) than noncancer patients among Asians. When stratifying by the location of gastric cancer, we found that patients with cardia gastric cancer had a significantly lower frequency of AA (OR = 0.41, 95% CI = 0.20, 0.84) than those with noncardia gastric cancer among Caucasians. When stratifying by Lauren's classification of gastric cancer, we found that patients with diffuse gastric cancer had a significantly higher frequency of AA (OR = 1.91, 95% CI = 1.07, 3.41) than those with intestinal gastric cancer among Caucasians.
CONCLUSIONS: This meta-analysis suggests that the IL10 -592 promoter polymorphism may be associated with gastric cancer among Asians, and that differences in genotype distribution may be associated with the location and Lauren's classification of gastric cancer.
METHODS: Two investigators independently searched the MEDLINE and Embase databases. This meta-analysis included ten case-control studies, which included 1,715 gastric cancer cases and 2,783 controls.
RESULTS: The combined results based on all studies showed that there was no significant difference in genotype distribution (AA odds ratio [OR] = 0.88, 95% confidence interval [CI] = 0.66, 1.18; AC OR = 1.09, 95% CI = 0.95, 1.24; CC OR = 1.03, 95% CI = 0.89, 1.18) between gastric cancer and noncancer patients. When stratifying for race, the results were similar, except that patients with gastric cancer had a significantly lower frequency of AA (OR = 0.67, 95% CI = 0.52, 0.87) and a higher frequency of AC (OR = 1.34, 95% CI = 1.07, 1.68) than noncancer patients among Asians. When stratifying by the location of gastric cancer, we found that patients with cardia gastric cancer had a significantly lower frequency of AA (OR = 0.41, 95% CI = 0.20, 0.84) than those with noncardia gastric cancer among Caucasians. When stratifying by Lauren's classification of gastric cancer, we found that patients with diffuse gastric cancer had a significantly higher frequency of AA (OR = 1.91, 95% CI = 1.07, 3.41) than those with intestinal gastric cancer among Caucasians.
CONCLUSIONS: This meta-analysis suggests that the IL10 -592 promoter polymorphism may be associated with gastric cancer among Asians, and that differences in genotype distribution may be associated with the location and Lauren's classification of gastric cancer.