This pattern was different from that seen in one AD stage V-VI/C processed in parallel which was characterized by three bands of 68, 64, and 60 kDa, together with several bands of about 50 kDa, several bands between 30 and 40 kDa, and lower bands of truncated tau at the C-terminal, one of which was about 20 kDa, in addition to oligomeric species of higher molecular weight (Figure 2A). Here, MAPT is linked to Alzheimer disease.