Preliminary study on the preparation of lyophilized acellular nerve scaffold complexes from rabbit sciatic nerves with human umbilical cord mesenchymal stem cells

Figure 4 Hematoxylin and eosin staining after acellular scaffold implantation. A: 3 days after surgery, a large number of inflammatory cells began to appear around the scaffold, including those surrounding the scaffold and spreading toward the middle; B: 7 days postoperatively, the number of inflammatory cells around the scaffold was further increased and the scaffold was further enveloped by the surrounding inflammatory cells; C: 3 weeks after surgery, the inflammatory cells around the scaffold began to fade; D: 6 weeks postoperatively, the inflammatory reaction further subsided and the shape of the scaffold was preserved.