Cited by 254Dementia and Cognitive Impairment ResearchFunctional Brain Connectivity StudiesMedical Imaging Techniques and Applications

The metabolic topography of normal aging

Moeller, J. R., Ishikawa, T., Dhawan, V., Spetsieris, P., Mandel, F., Alexander, G. E., Grady, C., Pietrini, P. +1 more·1996·Journal of Cerebral Blood Flow & Metabolism

Abstract

Normal aging is associated with the degeneration of specific neural systems. We used [18F] fluorodeoxyglucose (FDG)/positron emission tomography (PET) and a statistical model of regional covariation to explore the metabolic topography of this process. We calculated global and regional metabolic rates for glucose (GMR and rCMRglc) in two groups of normal subjects studied independently on different tomographs: Group 1--130 normal subjects (62 men and 68 women; range 21-90 years); Group 2--20 normal subjects (10 men and 10 women; range 24-78 years). In each of the two groups, the Scaled Subprofile Model (SSM) was applied to rCMRglc data to identify specific age-related profiles. The validity of these profiles as aging markers was assessed by correlating the associated subject scores with chronological age in both normal populations. SSM analysis disclosed two significant topographic profiles associated with aging. The first topographic profile, extracted in an analysis of group 1 normals, was characterized by relative frontal hypometabolism associated with covariate metabolic increases in the parietooccipital association areas, basal ganglia, mid-brain, and cerebellum. Subject scores for this profile correlated significantly with age in both normal groups (R2 = 0.48 and 0.33, p < 0.0001 for groups 1 and 2, respectively). Because of clinical similarities between normal motoric aging and parkinsonism, we explored the possibility of shared elements in the metabolic topography of both processes. We performed a combined group SSM analysis of the 20 group 2 normals and 22 age-matched Parkinson's disease patients, and identified another aging-related topographic profile. This profile was characterized by relative basal ganglia hypermetabolism associated with covariate decreases in frontal premotor cortex. Subject scores for this profile also correlated significantly with age in both normal groups (group 1: R2 = 0.30, p < 0.00001; group 2: R2 = 0.59, p < 0.01). Healthy aging is associated with reproducible topographic covariation profiles associated with specific neural systems. FDG/PET may provide a useful metabolic marker of the normal aging process.

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Crossref · 10.1097/00004647-199605000-00005

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  • Most previous studies have reported decreased activity in frontal areas and the anterior cingulate gyrus with age.

    “Most previous studies have reported decreased activity in frontal areas and the anterior cingulate gyrus with age, using SPECT [44], [ 15 O]H2O-PET [5,12,42,48,54] or 18 FDG-PET [28,32,49,58,86,87,89].”
  • Less metabolic decrease was found within the inferior temporal (fusiform cortex) and occipital areas (calcarine area and lingual gyrus), consistent with the literature.

    “Consistent with the literature, less metabolic decrease was found within the inferior temporal (fusiform cortex) and occipital areas (calcarine area and lingual gyrus) [32,49,58,86].”

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Authors
Moeller, J. R., Ishikawa, T., Dhawan, V., Spetsieris, P., Mandel, F., Alexander, G. E., Grady, C., Pietrini, P., & Eidelberg, D.
Affiliations
  • New York State Psychiatric Institute (US)
  • Departments of Neurology
  • Cornell University (US)
  • National Institutes of Health (US)
Corresponding author
Eidelberg, D.
Venue
Journal of Cerebral Blood Flow & Metabolism
Published
1996-05
Volume
16
Issue
3
Pages
385-398
ISSN
  • 0271-678X (ISSN-L)
  • 1559-7016
OpenAlex
W1984294537
Cited by
254
References
48
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 4 · 2022: 9 · 2021: 7 · 2020: 5 · 2019: 6 · 2018: 10 · 2017: 10 · 2016: 10 · 2015: 8 · 2014: 7 · 2013: 7 · 2012: 10
FWCI
9.40
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Cerebral Blood Flow & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
Keywords
normal aging, brain glucose metabolism, frontal hypometabolism, premotor cortex, aging markers, Parkinson's disease, motor aging, FDG-PET
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Brain, Brain Mapping, Deoxyglucose, Female, Fluorine Radioisotopes, Humans, Male, Middle Aged, Models, Neurological, Parkinson Disease, Reference Values, Regression Analysis, Tomography, Emission-Computed, Fluorodeoxyglucose F18

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