PDGFRB and Stroke: To investigate whether L-4F reduces WM-damage and OPC loss after stroke, we measured the densities of BS+ (axon marker, Figure 3A), αSMI31+ (phosphorylated-neurofilament marker, Figure 3B), LFB+ (myelin marker, Figure 3C) and the number of PDGFR(+-OPCs (Figure 3D) in the IBZ of striatum in the ischemic ipsilateral hemisphere, respectively.