Also, the correlation between all CNTNs with established biomarkers was dramatically lower for AD and PDD/DLB compared to controls (r; Tau (AD = 0.24, PDD/DLB = 0.42, Con = 0.51), pTau (AD = 0.02, PDD/DLB = 0.25, Con = 0.49) and Aβ42 (AD = 0.04, PDD/DLB = 0.07, Con = 0.76)) (Fig. 2B). Here, MAPT is linked to Alzheimer disease.