title: Proton magnetic resonance spectroscopy of the left medial temporal and frontal lobes in chronic schizophrenia: preliminary report.
abstract: Proton magnetic resonance spectroscopy (MRS) was performed in 30 medicated schizophrenic patients and 30 normal subjects. Two groups, each containing 15 schizophrenic patients and 15 age-and sex-matched normal subjects, received MRS examinations for different volumes of interest, either the frontal lobe or the medial temporal lobe. Schizophrenic patients showed a decrease in the ratios of N-acetylaspartate (NAA)/choline-containing compounds (Cho) and NAA/creatine-phosphocreatine (Cr). The patients also showed an increase in the ratio of Cho/Cr in the left medial temporal lobe but not in the left frontal lobe. The age at onset of illness correlated positively with the ratios of NAA/Cho and NAA/Cr in the medial temporal lobe. No significant correlation was observed between the ratios of NAA/Cho, NAA/Cr, or Cho/Cr in the left medial temporal and frontal lobes and clinical symptomatology as assessed by the Scale for the Assessment of Negative Symptoms and the Positive and Negative Syndrome Scale.
authors: Department of Neuropsychiatry, Faculty of Medicine, Kagoshima University, Japan.
authors: H
authors: H
authors: Fukuzako
authors: K
authors: K
authors: Takeuchi
authors: Y
authors: Y
authors: Hokazono
authors: T
authors: T
authors: Fukuzako
authors: K
authors: K
authors: Yamada
authors: T
authors: T
authors: Hashiguchi
authors: Y
authors: Y
authors: Obo
authors: K
authors: K
authors: Ueyama
authors: M
authors: M
authors: Takigawa
authors: T
authors: T
authors: Fujimoto
mesh_terms: D000328:Adult; D001143:Arousal / Q000502:physiology; D001224:Aspartic Acid / Q000031:analogs & derivatives / Q000378:metabolism; D002794:Choline / Q000378:metabolism; D003401:Creatine / Q000378:metabolism; D004292:Dominance, Cerebral / Q000502:physiology*; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D019965:Neurocognitive Disorders / Q000175:diagnosis / Q000503:physiopathology* / Q000523:psychology; D010725:Phosphocreatine / Q000378:metabolism; D011569:Psychiatric Status Rating Scales; D012016:Reference Values; D012559:Schizophrenia / Q000175:diagnosis / Q000503:physiopathology*; D012565:Schizophrenic Psychology; D013702:Temporal Lobe / Q000503:physiopathology*
chemical_list: D010725:Phosphocreatine; D001224:Aspartic Acid; C000179:N-acetylaspartate; D003401:Creatine; D002794:Choline