Evidence map›Paper›PMID 38371359›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)

Day-to-day sleep variability with Alzheimer's biomarkers in at-risk elderly.

Andrée-Ann Baril, Cynthia Picard, Anne Labonté, Erlan Sanchez, Catherine Duclos, Béry Mohammediyan, Nicholas J Ashton, Henrik Zetterberg, Kaj Blennow, John C S Breitner and 3 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
5.8field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Night-to-night rapid eye movement sleep variability: A relevant marker of early amyloid-β deposition.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Observational
  5. Article
  6. Longitudinal association between sleep and Alzheimer's pathology.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  7. The PREVENT-AD cohort: Accelerating Alzheimer's disease research and treatment in Canada and beyond.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  8. Lifestyle factors and plasma biomarkers of Alzheimer's disease: A narrative review.The journal of prevention of Alzheimer's disease · 2025
    Review
  9. Hypothalamic volume, sleep, and APOE genotype in cognitively healthy adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 5 institutions in 4 countries.

Andrée-Ann BarilDouglas Mental Health University Institute McGill University Montreal Québec Canada.
Cynthia PicardDouglas Mental Health University Institute McGill University Montreal Québec Canada.
Anne LabontéDouglas Mental Health University Institute McGill University Montreal Québec Canada.
Erlan SanchezSunnybrook Research Institute University of Toronto Toronto Ontario Canada.
Catherine DuclosHôpital du Sacré-Coeur de Montréal CIUSSS-NIM Montréal Québec Canada.
Béry MohammediyanDouglas Mental Health University Institute McGill University Montreal Québec Canada.
Nicholas J AshtonDepartment of Psychiatry and Neurochemistry Institute of Neuroscience & Physiology the Sahlgrenska Academy at the University of Gothenburg Mölndal Sweden.
Henrik ZetterbergDepartment of Psychiatry and Neurochemistry Institute of Neuroscience & Physiology the Sahlgrenska Academy at the University of Gothenburg Mölndal Sweden.
Kaj BlennowDepartment of Psychiatry and Neurochemistry Institute of Neuroscience & Physiology the Sahlgrenska Academy at the University of Gothenburg Mölndal Sweden.
John C S BreitnerDouglas Mental Health University Institute McGill University Montreal Québec Canada.
Sylvia VilleneuveDouglas Mental Health University Institute McGill University Montreal Québec Canada.
Judes PoirierDouglas Mental Health University Institute McGill University Montreal Québec Canada.
PREVENT‐AD Research Group
Douglas Mental Health University Institute · CASahlgrenska University Hospital · SEHôpital du Sacré-Cœur de Montréal · CAKing's College London · GBSunnybrook Health Science Centre · CA

Funding

The effects of iron on oxidative stress and Alzheimer's biomarkers in amyloid-positive and negative elderly normalR01AG068398 · NIA · WEILL MEDICAL COLL OF CORNELL UNIV · PI CHIANG, GLORIA CHIA-YI · 2020 to 2024
$2.8M
NIA NIH HHS R01 AG068398
6 · The paper itself

Abstract

introductionMeasuring day-to-day sleep variability might reveal unstable sleep-wake cycles reflecting neurodegenerative processes. We evaluated the association between Alzheimer's disease (AD) fluid biomarkers with day-to-day sleep variability.

methodsIn the PREVENT-AD cohort, 203 dementia-free participants (age: 68.3 ± 5.4; 78 males) with a parental history of sporadic AD were tested with actigraphy and fluid biomarkers. Day-to-day variability (standard deviations over a week) was assessed for sleep midpoint, duration, efficiency, and nighttime activity count.

resultsLower cerebrospinal fluid (CSF) ApoE, higher CSF p-tau181/amyloid-β (Aβ) DISCUSSION: Day-to-day sleep variability were associated with biomarkers of AD in at-risk individuals, suggesting that unstable sleep promotes neurodegeneration or, conversely, that AD neuropathology disrupts sleep-wake cycles.

Indexed as

accelerometryamyloidAPOE ε4apolipoproteinatrophybedtimebloodblood‐brain barrierdementiagray matter volumemild cognitive impairmentphosphorylatedp‐tau181p‐tau231tau

Identifiers

PMID38371359
PMCPMC10870017
OpenAlexW4391893930

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.