CCND2 (cyclin D2), which was implicated in cardiac hypertrophy, was downregulated (68), but so was the cyclin-dependent kinase inhibitor CDKN2B. TP53, a major player in the development of systolic heart failure (69, 70), was downregulated, as was PRKCA. Activation of PKCα is implicated in cardiac hypertrophy and heart failure (71–73). This evidence concerns the gene CCND2 and systolic heart failure.