title: Investigating opioid peptides in schizophrenia and depression.
mesh_terms: D001714:Bipolar Disorder / Q000503:physiopathology*; D001921:Brain / Q000503:physiopathology*; D002986:Clinical Trials as Topic; D003866:Depressive Disorder / Q000188:drug therapy / Q000503:physiopathology*; D004311:Double-Blind Method; D004723:Endorphins / Q000008:administration & dosage / Q000032:analysis / Q000502:physiology* / Q000627:therapeutic use; D006801:Humans; D007275:Injections, Intravenous; D007278:Injections, Spinal; D006435:Renal Dialysis; D012559:Schizophrenia / Q000188:drug therapy / Q000503:physiopathology* / Q000628:therapy; D001615:beta-Endorphin / Q000031:analogs & derivatives
chemical_list: D004723:Endorphins; C045185:beta-endorphin, Leu(5)-; D001615:beta-Endorphin