目的探讨错配修复基因-h MLH1启动子甲基化及基因失活在类风湿关节炎(RA)发生发展中的作用。方法选取2006年4月—2007年4月河北医科大学附属第二医院及第三医院新诊断的RA患者33例为病例组,另选择同期河北省血液中心提供的健康人群38例为对照组。取受试者外周血,以密度梯度离心法分离外周血单个核细胞。分别以RT-PCR法、蛋白印迹法检测外周血单个核细胞h MLH1 m RNA、蛋白相对表达量。经亚硫酸氢钠修饰后,分别设计h MLH1启动子甲基化和非甲基化的DNA引物,检测病例组和对照组患者h MLH1启动子甲基化结果。结果病例组h MLH1 m RNA相对表达量为0.56(0.24,0.69),低于对照组的0.80(0.68,0.93),差异有统计学意义(Z=-3.98,P<0.05)。病例组h MLH1蛋白相对表达量为0.70(0.62,0.76),低于对照组的0.80(0.68,0.94),差异有统计学意义(Z=-2.23,P<0.05)。病例组h MLH1启动子甲基化阳性率为90.9%(30/33),高于对照组的13.2%(5/38),差异有统计学意义(χ2=42.72,P<0.05)。h MLH...
【英文摘要】
Objective To explore promoter methylation and gene inactivation of mismatch repair gene- h MLH1 in the genesis and development of rheumatoid arthritis( RA). Methods A total of 33 RA patients diagnosed in the second and third hospital of Hebei Medical University from April 2006 to April 2007 were enrolled as the case group and at the corresponding period another 38 healthy persons from Hebei Province Blood Center were recruited as the control group. Peripheral blood mononuclear cells from subjects were separ...
【基金】
河北省自然科学基金资助项目(H2014105040)
【更新日期】
2016-03-29
【分类号】
R593.22
【正文快照】
h MLH1 Promoter Methylation From Peripheral Blood Mononuclear Cells of Patients With Newly Diagnosed RheumatoidArthritis ZHEN Yan-feng,LIU Xing-yu,ZHOU Yun-tao,et al.The Second Department of Endocrine,TangshanGongren Hospital,Tangshan 063000,China类风湿关