MAPT and Parkinson disease: Rajput et al reported a case with slow, progressive, non–levodopa-responsive parkinsonism and tau-positive NFTs resembling the neuropathology of PSP (Rajput et al., 2006), Giasson et al and Gaig et al each reported a case with classical tremor-dominant parkinsonism and pure nigral degeneration (Gaig et al., 2008; Giasson et al., 2006), and, Dachsel et al reported a case with dementia and tremor and pathology consisted of FTLD with ubiquitinated neuronal inclusions (FTLD-U) (Dachsel et al., 2007).