Cited by 878Circadian rhythm and melatoninSleep and Wakefulness ResearchSleep and Work-Related Fatigue

Mechanisms linking circadian clocks, sleep, and neurodegeneration

Open access
Musiek, Erik S., Holtzman, David M.·2016·Science

Abstract

Disruptions of normal circadian rhythms and sleep cycles are consequences of aging and can profoundly affect health. Accumulating evidence indicates that circadian and sleep disturbances, which have long been considered symptoms of many neurodegenerative conditions, may actually drive pathogenesis early in the course of these diseases. In this Review, we explore potential cellular and molecular mechanisms linking circadian dysfunction and sleep loss to neurodegenerative diseases, with a focus on Alzheimer’s disease. We examine the interplay between central and peripheral circadian rhythms, circadian clock gene function, and sleep in maintaining brain homeostasis, and discuss therapeutic implications. The circadian clock and sleep can influence a number of key processes involved in neurodegeneration, suggesting that these systems might be manipulated to promote healthy brain aging.

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Crossref · 10.1126/science.aah4968

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97 of 97 references verified0 citation errors · 0 not checkable

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  • Circadian rhythm disruption, often from irregular sleep-wake cycles, impairs glymphatic clearance of neurotoxic metabolites like amyloid-beta, exacerbating cognitive decline.

    “Circadian rhythm disruption, often resulting from irregular sleep-wake cycles, impairs glymphatic clearance of neurotoxic metabolites like amyloid-β, exacerbating cognitive decline [5].”

    From What Are the Key Biological Pathways Through Which Lifestyle Factors Influence Neurodegeneration? (2025) · cites this paper as [5]

    In “Sleep and Neurodegeneration” (page not specified), the review reports that slow-wave sleep increases glymphatic clearance of Aβ in mice and that sleep disturbances can affect cognition. But it explicitly says the effect of chronic sleep disturbances on glymphatic function remains uncertain; it does not establish that circadian disruption impairs that clearance and thereby exacerbates cognitive decline. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • The survey finding that diet type and sleep duration were associated with belief in preventability aligns with biological evidence on diet and circadian regulation in modulating neuroinflammation and glymphatic clearance.

    “This aligns with biological evidence highlighting the roles of diet and circadian regulation in modulating neuroinflammation and glymphatic clearance [4,5].”

    From What Are the Key Biological Pathways Through Which Lifestyle Factors Influence Neurodegeneration? (2025) · cites this paper as [5]

    The Inflammation section links circadian clocks to inflammatory responses, and Sleep and Neurodegeneration reports that slow-wave sleep increased glymphatic flow and amyloid-beta clearance in mice. The paper does not establish that diet type modulates neuroinflammation or glymphatic clearance; its discussion of feeding rhythms does not support that part of the claim. No page numbers are available in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Diffusion MRI indicates age-related changes in white matter connectivity between prefrontal and posterior cortical regions and within posterior sensory cortices.

    “Diffusion MRI methods have shown age-related changes in white matter connectivity between prefrontal and posterior cortical regions, and within posterior sensory cortices.25–27”

    From Maintenance, reserve and compensation: the cognitive neuroscience of healthy ageing (2018) · cites this paper as [25]

    The Sleep and Neurodegeneration section discusses sleep, synaptic function, and medial prefrontal amyloid pathology, while the Circadian function and neurodegeneration section discusses age-related circadian changes. Neither addresses diffusion MRI or the specified age-related white matter connectivity changes. Searches for diffusion MRI and for connectivity in posterior sensory cortices found no supporting passage in our copy; page numbers were unavailable. (LLM, conf=0.76)

    Experimental — accuracy not yet measured
  • Acute administration of ibuprofen led to a delay of SWS in addition to its sleep-disrupting effect.

    “Acute administration of ibuprofen, in addition to its sleep disrupting effect, also led to a delay of SWS (398).”

    From The Sleep-Immune Crosstalk in Health and Disease (2019) · cites this paper as [398]

  • Acute administration of aspirin at the recommended daily dose range in healthy participants disrupted sleep (decreased sleep efficiency, increased number of awakenings) and decreased SWS.

    “acute administration of aspirin at the recommended daily dose range in healthy participants disrupted sleep (i.e., decreased sleep efficiency, increased number of awakenings) (398) and decreased SWS (241).”

    From The Sleep-Immune Crosstalk in Health and Disease (2019) · cites this paper as [398]

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Authors
Musiek, E. S., & Holtzman, D. M.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Musiek, Erik S.
Venue
Science
Published
2016-11-25
Volume
354
Issue
6315
Pages
1004-1008
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2553026365
Cited by
878
References
97
Citations by year
2026: 121 · 2025: 135 · 2024: 106 · 2023: 93 · 2022: 87 · 2021: 87 · 2020: 79 · 2019: 63 · 2018: 65 · 2017: 42
FWCI
6.04
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Neurological Disorders and Stroke (K08NS079405, P01NS074969)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
circadian rhythm, sleep, neurodegeneration, Alzheimer's disease, clock genes, sleep deprivation, brain homeostasis, aging, circadian rhythm disruption, therapeutic target
MeSH terms
Aging, Alzheimer Disease, Animals, Brain, Circadian Rhythm, Humans, Sleep, Suprachiasmatic Nucleus, Dyssomnias, Mice, Circadian Clocks

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