In particular, given the important roles of hippocampal or cerebral cortical glutamatergic neurons in AD pathogenesis (Butterfield & Pocernich, 2003; Leshchyns'ka et al., 2015; Rodriguez‐Perdigon et al., 2016), we examined co‐expression of Nurr1 and a marker for glutamatergic neurons (e.g., EAAC1 or vGlut1). Here, NR4A2 is linked to Alzheimer disease.