A) Unsupervised hierarchical clustering of TP53 targets from IPA clusters most aDCM together B) qRT-PCR validation of TP53 targets CCNG2, CDKN1A, SERPEINE2, and XPC in mRNA from NF (n=4) and aDCM (n=3–5) LV. C) Western blot of TP53 and MDM2 in NF, aDCM, and naDCM LV protein extracts. Blots normalized to GAPDH and quantified in D. *p < 0.05