NR4A2 and Alzheimer disease: In support of this notion, we recently reported that Nurr1 is highly co‐expressed with amyloid beta (Aβ) in 5XFAD mice, a mouse model of AD (Oakley et al., 2006), at early stages and that Nurr1‐expressing cells decline in an age‐dependent manner (Moon et al, 2015).