APOE and Lewy body dementia: However, several studies reported that DLB APOE4 carriers had higher amyloid burden (via [11C]-PiB) than non-carriers, while others did not (See Table 1) (Rowe et al., 2007; Maetzler et al., 2009; Gomperts et al., 2012; Vijayaraghavan et al., 2014; Nedelska et al., 2019; Ferreira et al., 2020; Jung et al., 2021).