(A, C) Ipsilateral side (IL, lesioned), showing an overall reduction of the labeling in the wild type as compared to the mutant mice. (B, D) Contralateral side (CL, unlesioned) shows greater labeling in the mutant mice. These results were confirmed by quantification of the integrated density of pixels (E, F). Graph G represents the ipsi/contralateral ratio, showing no statistical differences between the C57BL/6J and IFNγ−/− mice (P > 0.05). Scale: 50 μm.