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Figure 2 Effect of mechanical support with either a pulsatile or continuous-type left ventricular assist device on failing left ventricular (LV) and right ventricular (RV) samples. Immunohistochemical detection of N-terminus dystrophin in LV and RV myocardial samples from patients treated with continuous flow devices, pulsatile flow devices, and normal controls (A). Immunohistochemical detection of C-terminus dystrophin in LV and RV myocardial samples from patients treated with continuous flow devices, pulsatile flow devices, and normal controls (B). Staining scores for the immunohistochemical detection of N-terminus (C) and C-terminus (D) dystrophin in LV and RV samples from controls, failing hearts, and myocardial samples from patients treated with either continuous or pulsatile flow devices.