SRP20, TDP-43, hnRNP-A/B, and CELF2 have been associated with AD (Amador-Ortiz et al., 2007; Uryu et al., 2008; Wijsman et al., 2011; Berson et al., 2012; Wong et al., 2012), and SFPQ has been associated with AD and PiD (Ke et al., 2012). This evidence concerns the gene PPIB and Alzheimer disease.