Among the dementia patients studied by Schwab et al. (2000), CK1δ did not associate with tau-negative pathogenic inclusions (e.g., Lewy bodies, Marinesco bodies) of non-tauopathy neurodegenerative diseases, whereas it had variable immunostaining intensity amongst dystrophic neurites, NFTs, and neuropil threads in AD brains (Schwab et al., 2000). Here, MAPT is linked to Alzheimer disease.