In terms of pathology load, the PDD/DLB group showed more abundant LB count, p-tau and Aβ load compared to controls (number of LB/mm2: P < 0.001; p-tau: P = 0.015; Aβ: P = 0.018) and PD donors (number of LB/mm2: P = 0.033; p-tau: P = 0.035; Aβ: P = 0.033). This evidence concerns the gene MAPT and Parkinson disease.