(a) Analysis of cardiac signaling protein phosphorylation in ventricular tissue obtained 8 weeks after SIRI (n=5) or sham surgery (n=4). Ventricular tissue was homogenized, protein lysates generated, and proteins were separated by SDS-PAGE followed by immunoblotting with primary antibodies directed against phosphorylated-Akt1/2 (p-Akt), phosphorylated-ERK1/2 (p-ERK1/2), phosphorylated-ribosomal S6 protein (p-S6), phosphorylated-4E-BP1, and α-actin as a loading control. (b) Scanned blot densitometry was performed with Image J (v1.24) software. *P<0.05 vs sham.