MAPT and Lewy body dementia: Overall, cortical MD positively correlated with pSer129-αSyn (r = 0.32, R2 = 10%, P = 0.002) and p-tau pathology (r = 0.36, R2 = 13%, P < 0.001) in PDD/DLB across all cortical regions, but not with Aβ load (P = 0.339) (Additional file 2: Fig. S10b and d, and Additional file 1: Table S8).