Nociceptive and Neuronal Evaluation of the Sciatic Nerve of Wistar Rats Subjected to Compression Injury and Treated with Resistive Exercise

Figure 1

Photomicrographs of the sciatic nerve of Wistar rats in cross section, and the 1st column images are stained with hematoxylin and eosin and the 2nd column with osmium tetroxide. ((a) and (b)) Control group of nerve fibers intact (), surrounded by endoneurium (EN) and the presence of Schwann cell nuclei (SC). In (c) and (d), exercise group, notice the same characteristics of the control group. In (e) and (f), injury group, note the presence of several degenerated nerve fibers (DF), inflammatory infiltration with macrophages (MA), and giant cell clumps (GC), where (f) displayed thin myelin sheath (thick white arrow). In (g) and (h) group injury and exercise, there were degenerated nerve fibers (DF), core Schwann cell (SC), and inflammatory infiltrate (MA) but a large number of fibers with normal appearance ().

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