title: 31phosphorus magnetic resonance spectroscopy of the frontal and parietal lobes in chronic schizophrenia.
abstract: In vivo 31Phosphorus magnetic resonance spectroscopic imaging (31P MRSI) was performed on 20 chronic schizophrenic patients and 16 normal controls to determine if there were specific changes in high energy phosphorus and phospholipid metabolism in the frontal lobes of schizophrenic patients. Phosphorous metabolites were assessed in each of the left and right frontal as well as the left and right parietal lobes. Frontal lobe phosphorous metabolites were also correlated with severity of psychiatric symptomatology as assessed by the Brief Psychiatric Rating Scale (BPRS). Schizophrenics demonstrated higher phosphodiesters (PDE) and lower phosphocreatine (PCr) in both the left and right frontal regions compared to controls. There was also lower left frontal inorganic phosphate (Pi) in the schizophrenic group. No group differences were noted in the left or right parietal regions. In addition, right frontal PDE and right frontal PCr were highly correlated with the hostility-suspiciousness and anxiety-depression subscales of the BPRS. This study provides further support for altered frontal lobe phosphorous metabolism in schizophrenia.
authors: Magnetic Resonance Unit, Department of Veterans Affairs (DVA) Medical Center, San Francisco, CA.
authors: R F
authors: RF
authors: Deicken
authors: G
authors: G
authors: Calabrese
authors: E L
authors: EL
authors: Merrin
authors: D J
authors: DJ
authors: Meyerhoff
authors: W P
authors: WP
authors: Dillon
authors: M W
authors: MW
authors: Weiner
authors: G
authors: G
authors: Fein
mesh_terms: D000328:Adult; D002908:Chronic Disease; D004292:Dominance, Cerebral / Q000502:physiology; D004734:Energy Metabolism / Q000502:physiology*; D005625:Frontal Lobe / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D010296:Parietal Lobe / Q000473:pathology / Q000503:physiopathology; D010710:Phosphates / Q000378:metabolism*; D010743:Phospholipids / Q000378:metabolism; D012559:Schizophrenia / Q000175:diagnosis / Q000503:physiopathology*; D012565:Schizophrenic Psychology
chemical_list: D010710:Phosphates; D010743:Phospholipids