Galloway et al. found that an antibody specific for Tau does not react with LBs in the substantia nigra of isolated PD patients but can stain both the cortex and substantia nigra of dementia with Lewy bodies (DLB) patients (P G Galloway et al. 1988; Pamela G. Galloway et al. 1989). This evidence concerns the gene MAPT and Lewy body dementia.