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Differentially expressed genes (DEGs) of ICM or DCM samples compared with control were identified in GSE1869, GSE5406, GSE57338, GSE79962, GSE116250, and GSE46224 datasets. Functional enrichment analysis and protein\u2013protein network analysis of the coregulated DEGs in at least four datasets were performed using the online tools of DAVID, the Metascape database, and the STRING database. Hub genes of HF were identified and validated by western blotting (WB) and immunohistochemistry in our tissue microarray (TMA). Seventy-four coregulated ICM and 126 coregulated DCM relevant DEGs were identified. Moreover, 59 common genes between ICM and DCM relevant DEGs were obtained, which were mainly involved in cardiac fibrosis and several signal pathways, such as Wnt signal pathway, PI3K-Akt signal pathway, and HIF-1A signal pathway. Among the six hub genes with top degrees, asporin (ASPN) had a relatively higher correlation with LVEF. Finally, TMA and WB results revealed that the ASPN protein was significantly increased in ICM and DCM left ventricular samples. The present study revealed some common molecular mechanisms of HF with different causes. Furthermore, ASPN may be a potential promising biomarker for HF.<\/jats:p>","DOI":"10.1089\/dna.2020.5995","type":"journal-article","created":{"date-parts":[[2021,2,19]],"date-time":"2021-02-19T11:46:47Z","timestamp":1613735207000},"page":"303-315","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":20,"title":["Asporin is a Potential Promising Biomarker for Common Heart Failure"],"prefix":"10.1177","volume":"40","author":[{"given":"Kai","family":"Zhang","sequence":"first","affiliation":[{"name":"Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, 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