BDH1 and ischemic cardiomyopathy: (O–R) Human heart samples (IRB# Pro00005621, N = 13 with diagnosis of non-ischemic cardiomyopathy (NICM) and N = 13 without known cardiac pathophysiology (healthy)) subjected to SNORAC measuring SNO-BDH1 expression relative to loading control (SNO-p97 ATPase), representative SNORAC shown in (O), quantification in (P).