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A MYBPC3 mutant mouse model of DCM was compared with wild type and used to profile genomic 5mC and 5hmC changes by Chip-seq, and gene expression levels were analyzed by RNA-seq. Both 5mC-altered genes (957) and 5hmC-altered genes (2,022) were identified in DCM hearts. Diverse gene ontology and KEGG pathways were enriched for DCM phenotypes, such as inflammation, tissue fibrosis, cell death, cardiac remodeling, cardiomyocyte growth, and differentiation, as well as sarcomere structure. Hierarchical clustering of mapped genes affected by 5mC and 5hmC clearly differentiated DCM from wild-type phenotype. Based on these data, we propose that genomewide 5mC and 5hmC contents may play a major role in DCM pathogenesis. <\/jats:p><jats:p> NEW &amp; NOTEWORTHY Our data demonstrate that development of dilated cardiomyopathy in mice is associated with significant epigenetic changes, specifically in intronic regions, which, when combined with gene expression profiling data, highlight key signaling pathways involved in pathological cardiac remodeling and heart contractile dysfunction. <\/jats:p>","DOI":"10.1152\/ajpheart.00758.2018","type":"journal-article","created":{"date-parts":[[2019,4,26]],"date-time":"2019-04-26T14:04:10Z","timestamp":1556287450000},"page":"H168-H180","source":"Crossref","is-referenced-by-count":33,"title":["Association of intronic DNA methylation and hydroxymethylation alterations in the epigenetic etiology of dilated cardiomyopathy"],"prefix":"10.1152","volume":"317","author":[{"given":"Ali M.","family":"Tabish","sequence":"first","affiliation":[{"name":"Integrated 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