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miR-21联合CEA在结肠癌诊断中的应用

, PP. 609-611

Keywords: miR-21,癌胚抗原,结肠癌,诊断价值

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Abstract:

目的探索miR-21联合癌胚抗原(CEA)对结肠癌的诊断意义,为结肠癌早期检测提供新的依据。方法选择2010年12月至2013年12月于收治的结肠癌患者92例,匹配正常人88例;采集一般信息包括年龄、性别和CEA表达情况等,提取血浆中RNA并用Q-PCR检测miR-21的表达情况;分别用ROC曲线检测CEA、miR-21、miR-21联合CEA对结肠癌的诊断价值。结果正常人组CEA水平为(1.793±1.121)ng/mL,结肠癌患者CEA水平为(9.843±8.430)ng/mL,两组比较差异具有统计学意义(P<0.05)。Q-PCR结果显示结肠癌患者miR-21表达水平是正常人的(5.510±3.971)倍,差异具有统计学意义(P<0.05)。ROC曲线分析结果显示,CEA组曲线下面积为(0.838±0.029)(95%CI0.781-0.894),miR-21组曲线下面积为(0.724±0.038)(95%CI0.649-0.798),miR-21联合CEA组曲线下面积(0.916±0.019)(95%CI0.878-0.953)。结论miR-21联合CEA优于CEA或miR-21单独对于结肠癌的诊断价值,为临床早期检测结肠癌提供了新的依据。

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