β-amyloid (Aβ1-42), Tau, and phosphorylated Tau (p-Tau) only helped to differentiate between AD and FTD for the selection of cases (data not shown), even though some of the cases still had low Aβ1-42 and high Tau and p-Tau levels indicating AD comorbidity. The gene discussed is MAPT; the disease is frontotemporal dementia.