一种用于急性心肌梗死诊断的新型双miRNA特征: 基于公共微阵列数据的高分值对分析

张 灿, 郭 祉慧, 沙 灏, 黄 一珈, 张鹏 飞*
南昌大学江西医学院基础医学院

摘要


急性心肌梗死(AMI)仍是发病率和死亡率的主要原因,早期准确诊断至关重要,但现有基于肌钙蛋白的
方法存在上升延迟现象,因此需要新型生物标志物。微小RNA(miRNAs)是外周血中稳定的非编码RNA,作为
心血管疾病的无创生物标志物展现出应用前景。然而,单个miRNA诊断性能存在不一致性,组合性miRNA特征
分析或可提高准确性。最高分对(TSP)分析是一种无需显式归一化处理的非参数分类方法,通过特征对的相对表
达顺序区分生物学状态。目前,利用大规模公共miRNA数据进行AMI诊断的TSP分析研究仍处于探索阶段。本研
究通过TSP分析,在大型公共外周血miRNA微阵列数据集上,识别出一种用于AMI诊断的新型双miRNA特征谱
(GSE31568)。与健康对照组相比,在AMI患者中相对表达水平发生改变的特定miRNA对,可作为稳健且易于实施
的诊断生物标志物。

关键词


急性心肌梗死;miRNA;最高分对分析;诊断生物标志物;GEO数据集

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参考


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