ABCA7 and Alzheimer disease: Although the association of ABCA7 rs3764650 with AD has been confirmed in Caucasians (Harold et al., 2009; Lambert et al., 2010; Carrasquillo et al., 2011; Hollingworth et al., 2011; Omoumi et al., 2014; Cuyvers et al., 2015), GWAS studies in African Americans have found either none, or a nominally significant association (Logue et al., 2011; Reitz et al., 2013; N’songo et al., 2017).