PTK2 and schizophrenia: This was done with the genes’ expression analysis in brain tissue, using Nos1 [34,35], Nos2 [36,37], Nos3 [38], Plcg1 [39,40], Prkcg [41,42], Ptgs2 [43], and Ptk2 [44,45], all associated with schizophrenia presentation.