title: An in vivo proton magnetic resonance spectroscopy study of schizophrenia patients.
abstract: The level of the 1H metabolites in the left dorsolateral prefrontal region of schizophrenia patients at different stages of illness were measured in vivo using a short echo time spectroscopy technique. During both the early onset and chronic stages, normal N-acetylaspartate levels were observed, which suggests that these patients had no significant neuronal cell damage and/or loss. The in vivo measurements of glutamate in the first-episode, drugnaive patients failed to provide convincing evidence for the involvement of the glutamatergic system in the dorsolateral prefrontal region. Significant differences in the glutamine levels were observed in the acutely medicated and chronic patients; however, the interpretation of these differences requires further study.
authors.affiliation: Dept. of Psychiatry, University Hospital, London, Ontario, Canada.
authors.forename: J A
authors.initials: JA
authors.lastname: Stanley
authors.forename: P C
authors.initials: PC
authors.lastname: Williamson
authors.forename: D J
authors.initials: DJ
authors.lastname: Drost
authors.forename: R J
authors.initials: RJ
authors.lastname: Rylett
authors.forename: T J
authors.initials: TJ
authors.lastname: Carr
authors.forename: A
authors.initials: A
authors.lastname: Malla
authors.forename: R T
authors.initials: RT
authors.lastname: Thompson
mesh_terms: D000293:Adolescent; D000328:Adult; D014150:Antipsychotic Agents / Q000627:therapeutic use; D001224:Aspartic Acid / Q000031:analogs & derivatives* / Q000378:metabolism; D002908:Chronic Disease; D005260:Female; D018698:Glutamic Acid / Q000378:metabolism*; D005973:Glutamine / Q000378:metabolism*; D006801:Humans; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D017397:Prefrontal Cortex / Q000503:physiopathology*; D011569:Psychiatric Status Rating Scales; D012559:Schizophrenia / Q000175:diagnosis / Q000188:drug therapy / Q000503:physiopathology*; D012565:Schizophrenic Psychology
chemical_list: D014150:Antipsychotic Agents; D005973:Glutamine; D001224:Aspartic Acid; D018698:Glutamic Acid; C000179:N-acetylaspartate