In addition, we included samples from frontotemporal dementia (FTD) patients, carriers of the splicing mutation c.709-1G > A in the progranulin (PGRN) gene [23], patients with dementia with Lewy bodies (DLB), as well as patients suffering from Parkinson’s disease (PD), amyotrophic lateral sclerosis (ALS) and progressive supranuclear palsy (PSP) as other neurodegenerative disorders. Here, GRN is linked to supranuclear palsy, progressive, 1.