On the contrary, phosphotau181 levels were 105 ± 47 pg/mL in AD (phosphotau181/tau, 0.17), and 37 ± 17 pg/mL in FTD (phosphotau181/tau, 0.16), values tenfold higher as compared to sCJD (Table 5). Here, MAPT is linked to frontotemporal dementia.