CDH2 and Alzheimer disease: CDH2 and NrCAM are involved in neuronal migration (László et al., 2020) and neuron-glia interactions (Mohan et al., 2019), respectively, and are related to neuropsychiatric disorders, including ASD (Sakurai et al., 2006) and synaptic degeneration, such as AD (Hu et al., 2010).