Cited by 750Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsCancer-related cognitive impairment studies

Associations between cognitive, functional, and FDG-PET measures of decline in AD and MCI

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Landau, Susan M., Harvey, Danielle, Madison, Cindee M., Koeppe, Robert A., Reiman, Eric M., Foster, Norman L., Weiner, Michael W., Jagust, William J.·2011·Neurobiology of Aging

Abstract

The Functional Activities Questionnaire (FAQ) and Alzheimer's Disease Assessment Scale-cognitive subscale (ADAS-cog) are frequently used indices of cognitive decline in Alzheimer's disease (AD). The goal of this study was to compare FDG-PET and clinical measurements in a large sample of elderly subjects with memory disturbance. We examined relationships between glucose metabolism in FDG-PET regions of interest (FDG-ROIs), and ADAS-cog and FAQ scores in AD and mild cognitive impairment (MCI) patients enrolled in the Alzheimer's Disease Neuroimaging Initiative (ADNI). Low glucose metabolism at baseline predicted subsequent ADAS-cog and FAQ decline. In addition, longitudinal glucose metabolism decline was associated with concurrent ADAS-cog and FAQ decline. Finally, a power analysis revealed that FDG-ROI values have greater statistical power than ADAS-cog to detect attenuation of cognitive decline in AD and MCI patients. Glucose metabolism is a sensitive measure of change in cognition and functional ability in AD and MCI, and has value in predicting future cognitive decline.

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Crossref · 10.1016/j.neurobiolaging.2009.07.002

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  • Individuals with MCI and early AD have diminished regional brain uptake of 2-DG, as measured by FDG-PET, before MCI-AD conversion, brain atrophy, or neurodegenerative changes.

    “Individuals with MCI and early AD have diminished regional brain uptake of 2-DG, as measured by FDG-PET, before MCI-AD conversion, brain atrophy, or neurodegenerative changes (268, 345, 424, 425, 517).”

    From Blood-Brain Barrier: From Physiology to Disease and Back (2019) · cites this paper as [345]

    The Results (§3.2; page not provided) show lower regional FDG-PET metabolism in MCI and AD than in cognitively normal participants. The Introduction reports evidence that FDG-PET predicts conversion from MCI to AD, but neither it nor the Results establishes that reduced uptake precedes brain atrophy or other neurodegenerative changes. (LLM, conf=0.87)

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Authors
Landau, S. M., Harvey, D., Madison, C. M., Koeppe, R. A., Reiman, E. M., Foster, N. L., Weiner, M. W., & Jagust, W. J.
Affiliations
  • University of California, Berkeley (US)
  • University of California, Davis (US)
  • University of Michigan (US)
  • Banner Alzheimer’s Institute (US)
  • University of Utah (US)
  • San Francisco VA Medical Center (US)
  • Lawrence Berkeley National Laboratory (US)
Corresponding author
Landau, Susan M.
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2011-07
Volume
32
Issue
7
Pages
1207-1218
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2155277084
Cited by
750
References
35
Citations by year
2026: 29 · 2025: 48 · 2024: 50 · 2023: 32 · 2022: 55 · 2021: 71 · 2020: 63 · 2019: 56 · 2018: 48 · 2017: 36 · 2016: 45 · 2015: 44 · 2014: 39 · 2013: 45 · 2012: 41
FWCI
17.82
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5u01ag024904-10)
  • National Institute on Aging (U01-AG-024904, P30AG010129, P30AG019610, U19AG010483)
  • National Institute of Biomedical Imaging and Bioengineering
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 › Pulmonary and Respiratory Medicine › Cancer-related cognitive impairment studies
Keywords
Alzheimer's disease, mild cognitive impairment, cognitive decline, FDG-PET, glucose metabolism, Functional Activities Questionnaire, ADAS-Cog, functional decline, memory impairment, statistical power
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Blood Glucose, Disability Evaluation, Female, Humans, Male, Neuropsychological Tests, Predictive Value of Tests, Severity of Illness Index, Disease Progression, Fluorodeoxyglucose F18, Positron-Emission Tomography, Cognitive Dysfunction

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