Figure 2.

Morphological and histological analysis. (A) Representative sections of Untreated, Control and EV-Treated pigs at 30 days post-MI and their respective enlarged images (right) showing the implanted scaffolds (arrows) covering the ischemic scar. (B, C) Masson's trichrome (top) and modified Movat's pentachrome (bottom) staining microphotographs of (B) representative Control and EV-Treated animals, showing the correct adhesion of the cardiac constructs over the epicardium and (C) the infarct core of the 3 groups of the study. Scale bars = 50 µm.