PD: Progression (32)DLB: Changes over time are not establishedDLB-AD vs. DLB-p tTau/Aβ1−42: worse progression (2–4, 33–37)AD: Prodromal / baseline Aβ and tau related to later atrophy, amyloid, decline (38–41). The gene discussed is MAPT; the disease is Lewy body dementia.