Also, we were able to detect an overlap of six DEGs among the autism spectrum disorder, schizophrenia and bipolar disorder datasets: RAB2A (Member RAS Oncogene Family), RAD23B (RAD23 homolog B, nucleotide excision repair protein), LGALS8 (Galectin-8), PIAS1 (Protein Inhibitor of Activated STAT 1), PDP1 (Pyruvate Dehydrogenase Phosphatase Catalytic Subunit 1), and CHD9 (Chromodomain Helicase DNA Binding Protein 9). This evidence concerns the gene PIAS1 and schizophrenia.