Cited by 277Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsCancer-related cognitive impairment studies

Glucose metabolism, gray matter structure, and memory decline in subjective memory impairment

Scheef, Lukas, Spottke, Annika, Daerr, Moritz, Joe, Alexius, Striepens, Nadine, Kölsch, Heike, Popp, Julius, Daamen, Marcel +8 more·2012·Neurology

Abstract

OBJECTIVE: To identify biological evidence for Alzheimer disease (AD) in individuals with subjective memory impairment (SMI) and unimpaired cognitive performance and to investigate the longitudinal cognitive course in these subjects. METHOD: [¹⁸F]fluoro-2-deoxyglucose PET (FDG-PET) and structural MRI were acquired in 31 subjects with SMI and 56 controls. Cognitive follow-up testing was performed (average follow-up time: 35 months). Differences in baseline brain imaging data and in memory decline were assessed between both groups. Associations of memory decline with brain imaging data were tested. RESULTS: The SMI group showed hypometabolism in the right precuneus and hypermetabolism in the right medial temporal lobe. Gray matter volume was reduced in the right hippocampus in the SMI group. At follow-up, subjects with SMI showed a poorer performance than controls on measures of episodic memory. Longitudinal memory decline in the SMI group was associated with reduced glucose metabolism in the right precuneus at baseline. CONCLUSION: The cross-sectional difference in 2 independent neuroimaging modalities indicates early AD pathology in SMI. The poorer memory performance at follow-up and the association of reduced longitudinal memory performance with hypometabolism in the precuneus at baseline support the concept of SMI as the earliest manifestation of AD.

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Crossref · 10.1212/wnl.0b013e31826c1a8d

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38 of 38 references verified0 citation errors · 0 not checkable

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  • Longitudinal reduction in cognitive performance is associated with brain hypometabolism in the precuneus at baseline, but not with gray matter atrophy.

    “In longitudinal studies using FDG-PET and MRI modalities, the longitudinal reduction in cognitive performance was associated with brain hypometabolism in the precuneus at baseline, but not with gray matter atrophy [59].”
  • Regional reductions in brain glucose utilization occur with aging and to a greater extent in MCI and AD.

    “Regional reductions in brain glucose utilization occur with aging and to a greater extent in MCI and AD [185-193].”

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Authors
Scheef, L., Spottke, A., Daerr, M., Joe, A., Striepens, N., Kölsch, H., Popp, J., Daamen, M., Gorris, D., Heneka, M. T., Boecker, H., Biersack, H. J., Maier, W., Schild, H. H., Wagner, M., & Jessen, F.
Affiliations
University of Bonn (DE)
Venue
Neurology
Published
2012-09-25
Volume
79
Issue
13
Pages
1332-1339
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2127591453
Cited by
277
References
38
Citations by year
2026: 6 · 2025: 6 · 2024: 18 · 2023: 10 · 2022: 20 · 2021: 33 · 2020: 31 · 2019: 28 · 2018: 22 · 2017: 21 · 2016: 18 · 2015: 22 · 2014: 20 · 2013: 19 · 2012: 3
FWCI
14.60
Type
journal article
Language
en
Open access
closed
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS (submittedVersion)
  • Open Repository and Bibliography (University of Luxembourg) (submittedVersion)
  • DZNE Pub (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
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
subjective memory impairment, Alzheimer's disease, memory decline, glucose metabolism, episodic memory
MeSH terms
Aged, Brain, Female, Follow-Up Studies, Glucose, Humans, Magnetic Resonance Imaging, Male, Memory Disorders, Neuropsychological Tests, Fluorodeoxyglucose F18, Positron-Emission Tomography, Memory, Episodic

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