TABLE 5.

Some Tauopathies and Their Brain Targets

DiseaseTau isoformPrimary pathologyBrain localizationRegions with highest PET uptake
AD3R,4RPaired helical filamentsCorticalTemporal, postcingulate
Progressive supranuclear palsy4RStraight filamentsSubcorticalGlobus pallidus, putamen, subthalamic nucleus
Corticobasal degeneration4RStraight filamentsSubcorticalGlobus pallidus, putamen
Chronic traumatic encephalopathy3R,4RPaired helical filamentsCorticalFrontal, temporal, diencephalon
Down syndrome3R,4RPaired helical filamentsCorticalTemporal, postcingulate