Comparing semiquantitative scores in these regions in PSP versus CO, only the SN, RN/SCP and STN were significantly different both for parenchymal (SN-χ2 = 7.98; P = 0.004; MBT-χ2 = 7.27; P = 0.007; STN-χ2 = 4.40; P = 0.03) and perivascular CD8-cell counts (SN-χ2 = 9.63; P = 0.01; MBT-χ2 = 6.43; P = 0.01; STN-χ2 = 6.40; P = 0.01; Figs 1D and 2). This evidence concerns the gene CD8A and supranuclear palsy, progressive, 1.