Neuromuscular Damage and Repair after Dry Needling in Mice

Figure 4

Myoblast proliferation. When the inflammatory cells remove the debris of necrotic muscle fibers, satellite cells are activated and become myoblasts which initiate mitotic proliferation for several hours. Inflammatory reaction, myoblast cells, and mitotic proliferation are coexisting at the same time. Sample was obtained on day three after treatment. Methylene blue stain. Initial magnification: 1000x.