Mechanism of spinal cord injury regeneration and the effect of human neural stem cells-secretome treatment in rat model

Figure 7 We observed immunohistochemical matrix metalloproteinase 9 average value of 10 field of views, every field of view have 625 µ² with 400 × magnification. A: Treatment group; B: Control group; C: Normal group. Microglia (red arrow) are small round cells, solid nuclei and give a positive reaction with anti matrix metalloproteinase 9 (MMP9) indicated by brown color. While macrophage (blue arrow) cells are large, vesicular nucleus, and sometimes elongated resembling fibroblasts (macrophages like fibroblast) and give a positive reaction with anti MMP9 indicated by brown.