PPARA and diabetic cardiomyopathy: By GO and KEGG pathway analyses, we identified 24 significantly enriched KEGG pathways, the top 10 of which were tryptophan metabolism, cAMP signaling pathway, long-term potentiation, PPAR signaling pathway, diabetic cardiomyopathy, complement and coagulation cascades, circadian entrainment, ECM-receptor interaction, Malaria and long-term depression (Figs. 4A and 4B).