GBA1 and Parkinson disease: Recently, a disease spectrum between PD, PD with dementia (PDD), and DLB based on α-Synuclein deposition was proposed, with the most pronounced Lewy body pathology in DLB patients,14 especially when exhibiting variants in GBA1.11 In the context of blood coagulation, a subtle platelet antiaggregant function of exogenous α-Synuclein, which is also present in platelets, has been elucidated.