Cited by 108Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Alzheimer disease pathology in cognitively healthy elderly: A genome-wide study

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Kramer, Patricia L., Xu, Haiyan, Woltjer, Randall L., Westaway, Shawn K., Clark, David, Erten-Lyons, Deniz, Kaye, Jeffrey A., Welsh-Bohmer, Kathleen A. +9 more·2011·Neurobiology of Aging

Abstract

Many elderly individuals remain dementia-free throughout their life. However, some of these individuals exhibit Alzheimer disease neuropathology on autopsy, evidenced by neurofibrillary tangles (NFTs) in AD-specific brain regions. We conducted a genome-wide association study to identify genetic mechanisms that distinguish non-demented elderly with a heavy NFT burden from those with a low NFT burden. The study included 299 non-demented subjects with autopsy (185 subjects with low and 114 with high NFT levels). Both a genotype test, using logistic regression, and an allele test provided consistent evidence that variants in the RELN gene are associated with neuropathology in the context of cognitive health. Immunohistochemical data for reelin expression in AD-related brain regions added support for these findings. Reelin signaling pathways modulate phosphorylation of tau, the major component of NFTs, either directly or through β-amyloid pathways that influence tau phosphorylation. Our findings suggest that up-regulation of reelin may be a compensatory response to tau-related or beta-amyloid stress associated with AD even prior to the onset of dementia.

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Authors
Kramer, P. L., Xu, H., Woltjer, R. L., Westaway, S. K., Clark, D., Erten-Lyons, D., Kaye, J. A., Welsh-Bohmer, K. A., Troncoso, J. C., Markesbery, W. R., Petersen, R. C., Turner, R. S., Kukull, W. A., Bennett, D. A., Galasko, D., Morris, J. C., & Ott, J.
Affiliations
  • Oregon Health & Science University (US)
  • Rockefeller University (US)
  • Duke University (US)
  • Johns Hopkins University (US)
  • University of Kentucky (US)
  • Mayo Clinic (US)
  • University of Michigan (US)
  • National Alzheimer's Coordinating Center (US)
  • Rush University Medical Center (US)
  • University of California San Diego (US)
  • Washington University in St. Louis (US)
Corresponding author
Kramer, Patricia L.
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2011-12
Volume
32
Issue
12
Pages
2113-2122
ISSN
0197-4580 (ISSN-L)
OpenAlex
W1999608737
Cited by
108
References
29
Citations by year
2026: 4 · 2025: 5 · 2024: 5 · 2023: 3 · 2022: 3 · 2021: 1 · 2020: 8 · 2019: 4 · 2018: 2 · 2017: 5 · 2016: 12 · 2015: 8 · 2014: 9 · 2013: 13 · 2012: 16
FWCI
8.45
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Aging (R01-AG026916, P30-AG028377, P50-AG005146, P30-AG028383, P50-AG16574, U01-AG06786, P30-AG008017, P30-AG10161, R01-AG17917, P30-AG10129, P50-AG05131, P50-AG08671, P50-AG05681, P01-AG03991, U01-AG016976)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, neurofibrillary tangles, non-demented elderly, RELN gene, reelin, tau phosphorylation, amyloid-beta, genetic susceptibility, neuropathology, cognitive health, compensatory response
MeSH terms
Reelin Protein, Aged, Aged, 80 and over, Alzheimer Disease, Cognition, Female, Health Status, Humans, Longitudinal Studies, Male, Nerve Tissue Proteins, Phosphorylation, Serine Endopeptidases, Cohort Studies, Signal Transduction, Cell Adhesion Molecules, Neuronal, Extracellular Matrix Proteins, Neurofibrillary Tangles, tau Proteins, Polymorphism, Single Nucleotide, Genome-Wide Association Study

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