Figure 4: Calpain Inhibition Blunts Stress-Induced JP2 Dysregulation

(A to F) Western blots (A, C, E) and quantitation (B, D, F) of JP2 expression in heart lysates after TAB or MI at 5 weeks or ISO infusion at 2 weeks. GAPDH was used as the loading control. **p < 0.01 versus sham; †p < 0.05 versus saline control. n = 3 to 4 mice per group. JP2 = junctophilin-2; other abbreviations as in Figure 2.