In contrast, CSF Aβ42/Aβ40, Aβ PET and CSF p-Tau/Aβ40 all showed significant relation with FTP SUVRs in all the Braak ROIs, and the strongest association was found between FTP SUVR and CSF p-Tau/Aβ40 in late amyloidosis stage (Fig. 5B, D and F). The gene discussed is MAPT; the disease is amyloidosis.