Signal intensity of Olig2 in the corpus callosum was significantly different among groups (F(5,30) = 23.761, p < 0.001, Figure 4c) as well as in their cell number (F(5,30) = 10.658, p < 0.001, Figure 4d), with a significant enhancement in the ipsilateral corpus callosum of the MS and MB rats compared to the SS rats on post hoc analysis in the signal intensity (p < 0.01 in MS, p < 0.001 in MB, Figure 4c) and in the cell number (p < 0.05 in MS, p < 0.001 in MB, Figure 4d). The gene discussed is OLIG2; the disease is myeloid sarcoma.