KEGG pathway enrichment analysis indicated that miR-30a-5p may involve in pathways regulating apoptosis, p53 signaling, viral myocarditis, et al., and miR-654-5p may regulate pathways of dilated cardiomyopathy (DCM), p53 signaling, atherosclerosis, adrenergic signaling in cardiomyocytes, et al. (Fig. 7). The gene discussed is TP53; the disease is familial dilated cardiomyopathy.