In our dataset, we detected AMPA and NMDA receptor subunits associated with schizophrenia (i.e., GRIA1 and GRIN2A) and with a spectrum of DD/ID, ASD and seizures, often in co-morbidity (GRIA3, GRIN1, GRIN2A, and GRIN2B). This evidence concerns the gene GRIN2A and dentin dysplasia.