Neuromuscular Damage and Repair after Dry Needling in Mice
Figure 2
DN injury in muscle fibers. (a) DN injury in connective tissue covering the LAL muscle for the first three hours. Sometimes, the extremely superficial punctures affected only the connective tissue. At three hours, we can see an incipient inflammatory reaction. Initial magnification: 200x. (b) DN injury in the LAL muscle during the first three hours. Incipient inflammatory reaction at the edges of the lesion can be seen. Initial magnification: 100x. (c) The inflammatory reaction is already complete after 24 hours. Initial magnification: 100x. (d) The inflammatory reaction coexists with the initial stages of regeneration after three days. The area without cellularity is smaller than that seen in images (b) and (c). Initial magnification: 400x. The four images have been stained with methylene blue.
