MAPT and argyrophilic grain disease: The pathological events leading to neurofibrillary degeneration include reproducible loco-regional patterns of Tau expression that differ among sporadic tauopathies, such as Alzheimer's Disease (AD) [2], [3], Progressive Supranuclear Palsy (PSP) [4] or Argyrophilic Grain Disease (AGD) [5].