Fig. 4

Morphological and histological characterization of healthy and damaged muscle tissue. Representative images of hematoxylin and eosin (H&E) (A) and Masson’s trichrome staining (B) of biopsies derived from uninjured and ablated muscles at 30, 60, 90, 150 and 180 days after muscle damage. All along the considered time points the fibrotic tissue is marked in blue. 20X magnification; scale bar: 100 μm