Fig. 5: Repeated oligodendrocyte ablations resulted in axonal injury.

A, B SMI32 immunostaining and quantification suggested the intensity of SMI32 in the corpus callosum of DTR/DT mice was significantly increased compared with control/DT mice at 4 weeks after the 3rd round of DT injection. (n = 3 mice per group, scale bar = 200 μm, mean ± SEM, *p < 0.05, two-tailed t test). C, D SMI32 immunostaining and quantification indicated the intensity of SMI32 in the corpus callosum of DTR/DT mice was comparable to normal control level at 20 weeks after the 3rd round of DT injection. (n = 3-4 mice per group, scale bar = 200μm, mean ± SEM, ns not significant, two-tailed t test).