Objective： To evaluate the relationship between the genetic polymorphism of prostate stem cell antigen （PSCA） and the risk of advanced precancerous gastric lesions including intestinal metaplasia（IM） and dysplasi...Objective： To evaluate the relationship between the genetic polymorphism of prostate stem cell antigen （PSCA） and the risk of advanced precancerous gastric lesions including intestinal metaplasia（IM） and dysplasia（Dys）, a population-based study was conducted in Linqu County, a high-risk area of gastric cancer （GC） in China. Methods： The prevalence of gastric lesions including superficial gastritis（SG）, chronic atrophic gastritis（CAG）, IM and Dys was determined by histopathologic examination. The genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） technique. The effects of PSCA genetic variant on the risks of IM and Dys were calculated by unconditional logistic regression. Results： Multivariate analysis revealed subjects carrying PSCA rs2294008 CT/TT genotype were associated with an increased risk of IM （OR=1.38, 95% CI=1.11-1.71） and Dys （OR=1.75, 95% CI=1.36-2.26）, especially for subjects with H.pylori infection （IM： OR=1.34, 95% CI=1.05-1.71; Dys： OR=1.82, 95% CI=1.37-2.42）. Furthermore, H. pylori infection and PSCA rs2294008 CT/TT genotype were observed to jointly elevate the risk of IM （OR=3.32, 95% CI=2.33-4.71） and Dys （OR=4.58, 95% CI=2.99-7.04）. Conclusion： This study suggested that PSCA rs2294008 might have an impact on the risk of IM or Dys among the high risk population of GC.展开更多
目的系统评价前列腺干细胞抗原(PSCA)rs2294008位点多态性与胃癌癌前病变是否存在相关性。方法应用计算机检索电子数据库Pub Med、Sino Med、CNKI、万方、VIP,按纳入标准搜索含有研究PSCA rs2294008多态性与胃癌癌前病变相关性的文章,...目的系统评价前列腺干细胞抗原(PSCA)rs2294008位点多态性与胃癌癌前病变是否存在相关性。方法应用计算机检索电子数据库Pub Med、Sino Med、CNKI、万方、VIP,按纳入标准搜索含有研究PSCA rs2294008多态性与胃癌癌前病变相关性的文章,并对所纳入文献进行Meta分析。结果共5篇文章纳入研究,病例组2 310例,对照组3 240例,研究表明,PSCA ra2294008等位基因模型、加性模型、共显性模型、显性模型与胃癌癌前病变的易感性有关,差异有统计学意义(T vs C:OR=1.18,95%CI:1.09~1.28,P<0.0001;TT vs CC:OR=1.46,95%CI:1.08~1.97,P=0.01;CT vs CC:OR=1.25,95%CI:1.09~1.42,P=0.0009;CT+TT vs CC:OR=1.31,95%CI:1.16~1.49,P<0.0001),隐性模型与胃癌癌前病变的易感性有关,但差异无统计学意义(TT vs CT+CC:OR=1.24,95%CI:0.93~1.66,P=0.15)。PSCA突变等位基因T增加了萎缩性胃炎的易感性,差异有统计学意义(T vs C:OR=1.24,95%CI:1.12~1.38,I2=24,P<0.0001;TT vs CC:OR=1.60,95%CI:1.28~2.01,I2=3,P<0.0001;CT vs CC:OR=1.42,95%CI:1.17~1.72,I^2=0,P=0.0004;CT+TT vs CC:OR=1.47,95%CI:1.22~1.77,I^2=0,P<0.0001;TT vs CC:OR=1.24,95%CI:1.04~1.47,I2=47,P=0.02)。结论 PSCA rs2294008位点多态性与胃癌癌前病变有相关性。展开更多
目的评价前列腺干细胞抗原(prostate stem cell antigen,PSCA)基因rs2976392多态位点与中国人群胃癌易感性的关联。方法通过计算机检索中国知网、万方数据库、维普数据库、NCBI、Embase、Web of Science等数据库获取关于胃癌与PSCA基因r...目的评价前列腺干细胞抗原(prostate stem cell antigen,PSCA)基因rs2976392多态位点与中国人群胃癌易感性的关联。方法通过计算机检索中国知网、万方数据库、维普数据库、NCBI、Embase、Web of Science等数据库获取关于胃癌与PSCA基因rs2976392多态位点相关的文献,检索时间为自建库起至2020年3月22日。对纳入文献进行质量评价后,使用RevMan 5.3和Stata 12.0软件进行Meta分析。结果最终纳入13篇文献共14项病例对照研究,包含6618例胃癌患者和6952例对照者。Meta分析显示,等位基因模型(A vs G)、显性基因模型(AA+GA vs GG)和1个共显性基因模型(AA vs GG)均显示PSCA基因rs2976392多态位点与中国人群胃癌发病风险增加有关(OR=1.28,95%CI:1.08~1.52,P=0.004;OR=1.35,95%CI:1.27~1.45,P<0.001;OR=1.51,95%CI:1.03~2.20,P=0.030)。亚组分析结果显示,所有基因模型均与汉族人群胃癌发病风险增加有关(均P<0.001),但与藏族人群胃癌发病风险无关(均P>0.05)。结论PSCA基因rs2976392多态位点与中国人群胃癌发病风险升高有关,且以纯合AA基因型汉族人群的胃癌发病风险最高。展开更多
基金supported by a grant from the Program of National Natural Science Foundation of China(No.30772515)the National"863"High-Tech Res & Dev Program of China(No.2006A A02A402)
文摘Objective： To evaluate the relationship between the genetic polymorphism of prostate stem cell antigen （PSCA） and the risk of advanced precancerous gastric lesions including intestinal metaplasia（IM） and dysplasia（Dys）, a population-based study was conducted in Linqu County, a high-risk area of gastric cancer （GC） in China. Methods： The prevalence of gastric lesions including superficial gastritis（SG）, chronic atrophic gastritis（CAG）, IM and Dys was determined by histopathologic examination. The genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） technique. The effects of PSCA genetic variant on the risks of IM and Dys were calculated by unconditional logistic regression. Results： Multivariate analysis revealed subjects carrying PSCA rs2294008 CT/TT genotype were associated with an increased risk of IM （OR=1.38, 95% CI=1.11-1.71） and Dys （OR=1.75, 95% CI=1.36-2.26）, especially for subjects with H.pylori infection （IM： OR=1.34, 95% CI=1.05-1.71; Dys： OR=1.82, 95% CI=1.37-2.42）. Furthermore, H. pylori infection and PSCA rs2294008 CT/TT genotype were observed to jointly elevate the risk of IM （OR=3.32, 95% CI=2.33-4.71） and Dys （OR=4.58, 95% CI=2.99-7.04）. Conclusion： This study suggested that PSCA rs2294008 might have an impact on the risk of IM or Dys among the high risk population of GC.
文摘目的系统评价前列腺干细胞抗原(PSCA)rs2294008位点多态性与胃癌癌前病变是否存在相关性。方法应用计算机检索电子数据库Pub Med、Sino Med、CNKI、万方、VIP,按纳入标准搜索含有研究PSCA rs2294008多态性与胃癌癌前病变相关性的文章,并对所纳入文献进行Meta分析。结果共5篇文章纳入研究,病例组2 310例,对照组3 240例,研究表明,PSCA ra2294008等位基因模型、加性模型、共显性模型、显性模型与胃癌癌前病变的易感性有关,差异有统计学意义(T vs C:OR=1.18,95%CI:1.09~1.28,P<0.0001;TT vs CC:OR=1.46,95%CI:1.08~1.97,P=0.01;CT vs CC:OR=1.25,95%CI:1.09~1.42,P=0.0009;CT+TT vs CC:OR=1.31,95%CI:1.16~1.49,P<0.0001),隐性模型与胃癌癌前病变的易感性有关,但差异无统计学意义(TT vs CT+CC:OR=1.24,95%CI:0.93~1.66,P=0.15)。PSCA突变等位基因T增加了萎缩性胃炎的易感性,差异有统计学意义(T vs C:OR=1.24,95%CI:1.12~1.38,I2=24,P<0.0001;TT vs CC:OR=1.60,95%CI:1.28~2.01,I2=3,P<0.0001;CT vs CC:OR=1.42,95%CI:1.17~1.72,I^2=0,P=0.0004;CT+TT vs CC:OR=1.47,95%CI:1.22~1.77,I^2=0,P<0.0001;TT vs CC:OR=1.24,95%CI:1.04~1.47,I2=47,P=0.02)。结论 PSCA rs2294008位点多态性与胃癌癌前病变有相关性。
文摘目的评价前列腺干细胞抗原(prostate stem cell antigen,PSCA)基因rs2976392多态位点与中国人群胃癌易感性的关联。方法通过计算机检索中国知网、万方数据库、维普数据库、NCBI、Embase、Web of Science等数据库获取关于胃癌与PSCA基因rs2976392多态位点相关的文献,检索时间为自建库起至2020年3月22日。对纳入文献进行质量评价后,使用RevMan 5.3和Stata 12.0软件进行Meta分析。结果最终纳入13篇文献共14项病例对照研究,包含6618例胃癌患者和6952例对照者。Meta分析显示,等位基因模型(A vs G)、显性基因模型(AA+GA vs GG)和1个共显性基因模型(AA vs GG)均显示PSCA基因rs2976392多态位点与中国人群胃癌发病风险增加有关(OR=1.28,95%CI:1.08~1.52,P=0.004;OR=1.35,95%CI:1.27~1.45,P<0.001;OR=1.51,95%CI:1.03~2.20,P=0.030)。亚组分析结果显示,所有基因模型均与汉族人群胃癌发病风险增加有关(均P<0.001),但与藏族人群胃癌发病风险无关(均P>0.05)。结论PSCA基因rs2976392多态位点与中国人群胃癌发病风险升高有关,且以纯合AA基因型汉族人群的胃癌发病风险最高。
