Figure 3. Histopathological evaluation of specimens: (a) Spinal cord of sham group, H-Ex200. (b) Spinal cord of control group. Mild gliosis and neuronal degeneration in parenchyma (arrows), H-Ex200. (c) Spinal cord of treatment group. Clusters of degenerated axons (arrows), H-Ex200. (d) Spinal cord of treatment group. Gliosis and central chromatolysis characterized by cytoplasmic hyalinization and swelling in neural bodies (arrows), H-Ex200.