Achilles Tendon Repair by Decellularized and Engineered Xenografts in a Rabbit Model

Figure 4

Representative histological and immunohistochemical microphotographs of the native tendon (NT) and treated groups (AG, DG, and TEG) at 12 weeks. The panel reports the Alcian Blue staining (AB) and immunohistochemistry for type I and III collagen (COLL1, COLL3). The black arrows show the transition zones between the native tendon (NT) and the grafts (G). In the DG group, the granulation tissue and inflammatory tissue impede the identification of the transition zone; G letter identifies a portion of the transplanted graft. Magnification 100x, scale bar 200 μm. Detailed box, magnification 200x, scale bar 100 μm.