NAV2 and Alzheimer disease: For the new candidate gene NAV2, despite no direct association has been previously reported between NAV2 and AD or episodic memory, its special role in neurite growth and cell migration (Muley et al., 2008; Mcneill et al., 2010; Shioya et al., 2010; Marzinke et al., 2013) suggests that it warrants further investigation as a potential target in future analyses.