title: Magnetic resonance spectroscopic study of Alzheimer's disease and frontotemporal dementia/Pick complex.
abstract: Disease-specific metabolic changes in Alzheimer's disease and frontotemporal dementia/Pick complex were examined by proton magnetic resonance spectroscopy at 3.0 T. Spectra were acquired from posterior and anterior cingulate cortices and the parieto-occipital and frontal white matter. This study included eight Alzheimer's disease patients, 10 frontotemporal dementia/Pick complex patients and 14 healthy volunteers. N-acetylaspartate/creatine+phosphocreatine ratio was reduced in the posterior cingulate cortex in the Alzheimer's disease and frontotemporal dementia/Pick complex patients. The Alzheimer's disease patients, however, showed a posterior dominant decrease, whereas the frontotemporal dementia/Pick complex patients showed a frontal predominant decrease. These different distributions of metabolic changes may represent the underlying pathological processes in each disease. Our standardized protocol of proton magnetic resonance spectroscopy measurement may be helpful in differentiating these dementia subtypes.
authors.affiliation: BF Research Institute, Inc., Suita, Osaka, Japan. m-mihara@neurol.med.osaka-u.ac.jp
authors.forename: Masahito
authors.initials: M
authors.lastname: Mihara
authors.forename: Noriaki
authors.initials: N
authors.lastname: Hattori
authors.forename: Kazuo
authors.initials: K
authors.lastname: Abe
authors.forename: Saburo
authors.initials: S
authors.lastname: Sakoda
authors.forename: Tohru
authors.initials: T
authors.lastname: Sawada
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000175:diagnosis* / Q000378:metabolism / Q000503:physiopathology; D001224:Aspartic Acid / Q000031:analogs & derivatives / Q000378:metabolism; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology*; D003401:Creatine / Q000378:metabolism; D003704:Dementia / Q000175:diagnosis* / Q000378:metabolism / Q000503:physiopathology; D015536:Down-Regulation / Q000502:physiology; D004734:Energy Metabolism / Q000502:physiology; D005260:Female; D005625:Frontal Lobe / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology; D006179:Gyrus Cinguli / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010296:Parietal Lobe / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology; D020774:Pick Disease of the Brain / Q000175:diagnosis* / Q000378:metabolism / Q000503:physiopathology
chemical_list: D001224:Aspartic Acid; C000179:N-acetylaspartate; D003401:Creatine