Cited by 178Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsMedical Imaging Techniques and Applications

Topography of Cross-sectional and Longitudinal Glucose Metabolic Deficits in Alzheimer's Disease: Pathophysiologic Implications

Smith, Gwenn S.·1992·Archives of Neurology

Abstract

Positron emission tomographic studies of cerebral glucose metabolism have shown high diagnostic specificity in distinguishing among the degenerative dementias and differentiating between Alzheimer's disease (AD) and normal aging. The current investigation was undertaken to characterize the regional glucose metabolic deficits in AD, using cross-sectional and longitudinal study designs. All subjects met the National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association criteria for AD (n = 45) or were normal (n = 20), and the AD subjects were subdivided into incipient and mild AD and moderate plus moderately severe subgroups based on the Global Deterioration Scale. The subjects underwent a non-contrast computed tomographic scan and a positron emission tomographic (PETT VI) scan. The AD subjects (n = 14) and normal control subjects (n = 15) received evaluations 2 to 3 years after baseline study. The brain regions that show glucose metabolic deficits cross-sectionally (temporal and parietal association areas, with lesser degrees of deficit in subcortical gray matter structures), over the stages of AD, also show further deficits longitudinally within the same AD subjects. The reduction in glucose metabolism is greater than would be expected from the degree of brain atrophy. The glucose metabolic deficits are discussed in the context of neuropathologic findings and neurotransmitter deficits in AD.

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Crossref · 10.1001/archneur.1992.00530350056020

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Authors
Smith, G. S.
Corresponding author
Smith, Gwenn S.
Venue
Archives of Neurology
Published
1992-11-01
Volume
49
Issue
11
Pages
1142
ISSN
0003-9942 (ISSN-L)
OpenAlex
W2113406852
Cited by
178
References
67
Citations by year
2025: 1 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 7 · 2020: 4 · 2019: 2 · 2018: 6 · 2017: 4 · 2016: 7 · 2015: 7 · 2014: 6 · 2013: 2 · 2012: 8
FWCI
4.66
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (1P30-AG08051, P30AG008051)
  • National Institute of Mental Health (1 ROI MH 43965-04)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
Keywords
Alzheimer's disease, brain glucose metabolism, longitudinal metabolic changes, temporal lobe, parietal association areas, subcortical gray matter, brain atrophy, disease stage, neuropathology, neurotransmitter deficits, dementia diagnosis
MeSH terms
Aged, Alzheimer Disease, Analysis of Variance, Cerebral Cortex, Cross-Sectional Studies, Female, Glucose, Humans, Longitudinal Studies, Male, Middle Aged, Tomography, Emission-Computed, Tomography, X-Ray Computed

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