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RNA-Seq identifies novel myocardial gene expression signatures of heart failure

机译:RNA-Seq可识别心力衰竭的新型心肌基因表达特征

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Heart failure is a complex clinical syndrome and has become the most common reason for adult hospitalization in developed countries. Two subtypes of heart failure, ischemic heart disease (ISCH) and dilated cardiomyopathy (DCM), have been studied using microarray platforms. However, microarray has limited resolution. Here we applied RNA sequencing (RNA-Seq) to identify gene signatures for heart failure from six individuals, including three controls, one ISCH and two DCM patients. Using genes identified from this small RNA-Seq dataset, we were able to accurately classify heart failure status in a much larger set of 313 individuals. The identified genes significantly overlapped with genes identified via genome-wide association studies for cardiometabolic traits and the promoters of those genes were enriched for binding sites for transcriptions factors. Our results indicate that it is possible to use RNA-Seq to classify disease status for complex diseases such as heart failure using an extremely small training dataset. (C) 2014 Elsevier Inc. All rights reserved.
机译:心力衰竭是一种复杂的临床综合征,已成为发达国家成人住院的最常见原因。使用微阵列平台研究了心力衰竭的两种亚型,即缺血性心脏病(ISCH)和扩张型心肌病(DCM)。但是,微阵列的分辨率有限。在这里,我们应用RNA测序(RNA-Seq)来识别来自6名个体(包括3名对照,1名ISCH和2名DCM患者)的心力衰竭的基因特征。使用从这个小型RNA-Seq数据集中识别的基因,我们能够在313个更大的个体中准确分类心力衰竭状态。鉴定出的基因与通过全基因组关联研究确定的心脏代谢性状的基因显着重叠,并且这些基因的启动子富集了转录因子的结合位点。我们的结果表明,可以使用RNA-Seq使用非常小的训练数据集对复杂疾病(例如心力衰竭)的疾病状态进行分类。 (C)2014 Elsevier Inc.保留所有权利。

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