NGF and Alzheimer disease: Moreover, our results add an important element to the rationale for the therapeutic use of NGF in AD (Cattaneo & Calissano, 2012; Cattaneo et al., 2008; Eriksdotter Jönhagen et al., 1998; Eriksdotter‐Jönhagen et al., 2012; Eyjolfsdottir et al., 2016; Tuszynski et al., 2005, 2015).