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Cortical abnormalities in Alzheimer's disease
- Source :
- Annals of neurology. 16(6)
- Publication Year :
- 1984
-
Abstract
- Regional cerebral glucose metabolism, an index of neuronal activity, was compared in 20 patients with Alzheimer's disease and 8 age-matched normal volunteers by positron emission tomography following [18F]2-fluoro-2-deoxy-D-glucose administration. Overall cortical glucose utilization in the Alzheimer's group was 10 to 49% below that of control individuals. The posterior parietal cortex and contiguous portions of posterior temporal and anterior occipital lobes were most severely affected; frontal cortex was relatively spared. This pattern of cortical involvement is consistent with the major clinical features of Alzheimer's disease. Comparison of patients with early and more advanced dementia suggested that a substantial decline in glucose metabolism occurs before cognitive impairment becomes evident; once the patient is symptomatic, however, small additional metabolic decrements are associated with a marked deterioration in intellectual function.
- Subjects :
- Male
medicine.medical_specialty
Posterior parietal cortex
Disease
Deoxyglucose
Degenerative disease
Alzheimer Disease
Fluorodeoxyglucose F18
Internal medicine
Parietal Lobe
medicine
Premovement neuronal activity
Humans
Aged
Cerebral Cortex
Psychological Tests
medicine.diagnostic_test
Metabolic disorder
Middle Aged
medicine.disease
Temporal Lobe
Frontal Lobe
Endocrinology
medicine.anatomical_structure
Glucose
Neurology
Positron emission tomography
Cerebral cortex
Cardiology
Female
Neurology (clinical)
Occipital Lobe
Alzheimer's disease
Psychology
Tomography, Emission-Computed
Subjects
Details
- ISSN :
- 03645134
- Volume :
- 16
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Annals of neurology
- Accession number :
- edsair.doi.dedup.....c44f75e661f6fc2eda643f16c9f92c49