Furthermore, KEGG pathway enrichment revealed that 20 pathways were enriched, and that these DEPs were mainly involved in dilated cardiomyopathy, phagosome, thyroid hormone signaling pathway, toxoplasmosis, metabolic pathways, hypertrophic cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy, adrenergic signaling in cardiomyocytes, and so on (Fig. 3). Here, TG is linked to hypertrophic cardiomyopathy.