Consistent with dendritic pathology, pT217‐tau immunolabeling was also associated with abnormal mitochondria, that is, mitochondria‐on‐a‐string (MOAS) profiles (Figure 7A,E‐G), that have previously been documented in both aging rhesus macaques and patients with AD.51, 52, 53. This evidence concerns the gene MAPT and Alzheimer disease.