Cited by 569Sleep and Wakefulness ResearchAlzheimer's disease research and treatmentsMemory and Neural Mechanisms

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β-amyloid disrupts human NREM slow waves and related hippocampus-dependent memory consolidation

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Abstract

Independent evidence associates β-amyloid pathology with both non-rapid eye movement (NREM) sleep disruption and memory impairment in older adults. However, whether the influence of β-amyloid pathology on hippocampus-dependent memory is, in part, driven by impairments of NREM slow wave activity (SWA) and associated overnight memory consolidation is unknown. Here we show that β-amyloid burden in medial prefrontal cortex (mPFC) correlates significantly with the severity of impairment in NREM SWA generation. Moreover, reduced NREM SWA generation was further associated with impaired overnight memory consolidation and impoverished hippocampal-neocortical memory transformation. Furthermore, structural equation models revealed that the association between mPFC β-amyloid pathology and impaired hippocampus-dependent memory consolidation was not direct, but instead statistically depended on the intermediary factor of diminished NREM SWA. By linking β-amyloid pathology with impaired NREM SWA, these data implicate sleep disruption as a mechanistic pathway through which β-amyloid pathology may contribute to hippocampus-dependent cognitive decline in the elderly.

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Metadata

Authors
Mander, B. A., Marks, S. M., Vogel, J. W., Rao, V., Lu, B., Saletin, J. M., Ancoli-Israel, S., Jagust, W. J., & Walker, M. P.
Affiliations
  • University of California, Berkeley (US)
  • California Pacific Medical Center (US)
  • Lawrence Berkeley National Laboratory (US)
Corresponding author
  • Mander, Bryce A
  • Walker, Matthew P
Venue
Nature Neuroscience
Published
2015-06-01
Volume
18
Issue
7
Pages
1051-1057
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2161166547
Cited by
569
References
17
Citations by year
2026: 57 · 2025: 50 · 2024: 56 · 2023: 57 · 2022: 50 · 2021: 62 · 2020: 59 · 2019: 56 · 2018: 27 · 2017: 42 · 2016: 45 · 2015: 7
FWCI
19.86
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • National Institutes of Health
  • National Institute on Aging (F32AG039170, R01AG031164, R01AG034570)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
amyloid-beta, sleep disruption, medial prefrontal cortex, older adults, cognitive decline, Alzheimer's disease, memory impairment
MeSH terms
Aged, Aged, 80 and over, Aniline Compounds, Female, Hippocampus, Humans, Magnetic Resonance Imaging, Male, Memory Disorders, Sleep Wake Disorders, Sleep Stages, Thiazoles, Amyloid beta-Peptides, Polysomnography, Prefrontal Cortex, Recognition, Psychology, Positron-Emission Tomography, Brain Waves, Memory, Episodic

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