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作 者:顾玲[1,2] 高天翼[2] 宋国齐[2] 李瑞[1,2] 许晔琼[2] 陈丽萍[1,2] 聂珍琳[2] 王书奎[2]
机构地区:[1]南京师范大学生命科学学院 [2]南京医科大学附属南京第一医院中心实验室,江苏南京210006
出 处:《中国医疗设备》2012年第11期26-30,13,共6页China Medical Devices
基 金:国家自然科学基金(81172141)
摘 要:瘦素和瘦素受体参与了乳腺癌的发生发展过程。在瘦素受体基因(LEPR)6号外显子上第223个密码子A到G的转变可以导致谷氨酸到精氨酸的替换(Gln223Arg)。许多已发表的病例对照研究评价了LEPRGln223Arg多态性与乳腺癌的关系。然而,却未得出一致的结论。本篇meta分析囊括了8篇文献来评价LEPRGln223Arg多态性与乳腺癌的联系。用总体合并OR值作为研究共显性模型、隐性模型、显性模型的指标。结果显示总体研究中隐性模型(OR=1.32,95%CI:1.03~1.69)和Arg/Gln vs Gin/Gin基因型(OR=1.16,95%CI:1.01~1.34)显著提高了乳腺癌的危险性。种族分层分析中发现,非洲人群的以下几个基因型会提高患乳腺癌的危险性:Arg/Arg vs 8Gln/Gln(OR=1.86,95%CI:1.28-2.71),Arg/Gln vs GIn/Gln(OR=1.48,95%CI:1.10—1.99),显性模型(OR=1.60,95%CI:1.21~2.11)和隐性模型(OR=1.48,95%cI:1.07~2.05);亚洲人群中,Arg/ArgvsGin/Gin基因型(OR=6.79,95%CI:3.42~13.47)和显性模型(OR=2.03,95%CI:1.42~2.90)提高了患乳腺癌的危险性。在欧洲人群中任何基因模型都没有发现能显著提高乳腺癌的危险性。总而言之,LEPR223Arg是乳腺癌发展的低风险因素,特别是在非洲女性中。Leptin and leptin receptor have been implicated in processes of breast cancer. An A to G transition of codon 223^th in exon 6 of leptin receptor gene (LEPR) can result in the substitution from glutamine to arginine (Gln223Arg). A variety of case--control papers have been published to evaluate the association between LEPR Gln223Arg polymorphism and breast cancer. However, they have got contradictory conclusions. This meta analysis enrolls 8 papers to evaluate the connection of them. The pooled ORs are took for codominant model, recessive model, dominant model. The result shows that recessive model (OR=1.32, 95%CI: 1.03-1.69) and genotype Arg/Gln vs Gln/Gln (OR=1.16, 95%CI: 1.01-1.34) significantly improve breast cancer risk in overall study. In racial stratified analysis, some genotypes among Africans would significantly increase the risk: Arg/Arg vs Gln/Gln(OR=I.86, 95%CI: 1.28-2.71), Arg/GIn vs Gln/GIn(OR=l.48, 95%CI: 1.10-1.99), dominant model(OR=l.60, 95%CI: 1.21-2.11) and recessive model(OR=1.48, 95%CI: 1.07-2.05); for Asians, Arg/Arg vs GIn/GIn(OR=6.79, 95%C1: 3.42-13.47) and dominant model(OR=2.03, 95%CI: 1.42-2.90). However, no genetic models are found among Europeans which significantly increase cancer risk. In conclusion, the L1EPR 223Arg is a low risk factor for developing breast cancer, especially for African women.
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