BDH1 and ischemic cardiomyopathy: (S–U) Human heart samples (IRB# Pro00005621, N = 8–9 with diagnosis of ischemic cardiomyopathy (ICM; pink) and N = 10 without known cardiac pathophysiology (healthy; black)) subjected to SNORAC measuring SNO-BDH1 (S) or western blot measuring SCoR2 relative to loading control (SNO-p97 ATPase or p97, respectively).