Fig. 4

Histological images of transected sciatic nerve after hematoxylin and eosin staining in the treatment (LLLT) group (a and c) and untreated group (b and d). a, b Lower magnified views of the LLLT and no treatment groups. The transverse sections showed Wallerian degeneration in the untreated group. While nerve fibers and Schwann cells numbers increased in the treated group. e and f Histopathological pictures quantitative analyses for nuclei and vacuole formation showing remarkable higher number of Schwann cells nuclei and lower number of vacuoles referring to healing for the treated nerve with significant changes between control and treated groups at a confidence level of p < 0.05