Evidence map›Paper›PMID 35830960›Full record

ArticleJournal of sleep research2022

Abnormal brain iron accumulation in obstructive sleep apnea: A quantitative MRI study in the HypnoLaus cohort.

Nicola Andrea Marchi, Beatrice Pizzarotti, Geoffroy Solelhac, Mathieu Berger, José Haba-Rubio, Martin Preisig, Peter Vollenweider, Pedro Marques-Vidal, Antoine Lutti, Ferath Kherif and 2 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Journal of sleep research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Association Between Serum Trace Elements and Obstructive Sleep Apnea in Iranian Adults: Multiple-exposure Models.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2026
    Article
  3. Review
  4. Sleep Abnormalities and Risk of Alzheimer's Disease.Current neurology and neuroscience reports · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Corrigendum.Journal of sleep research · 2023
    Article
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 2 countries.

Nicola Andrea MarchiCentre for Investigation and Research on Sleep, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-7809-4399
Beatrice PizzarottiLaboratory for Research in Neuroimaging, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.
Geoffroy SolelhacCentre for Investigation and Research on Sleep, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-7135-133X
Mathieu BergerCentre for Investigation and Research on Sleep, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-6415-7694
José Haba-RubioCentre for Investigation and Research on Sleep, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0001-7466-6436
Martin PreisigCentre for Research in Psychiatric Epidemiology and Psychopathology, Department of Psychiatry, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0001-5689-4259
Peter VollenweiderService of Internal Medicine, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-0765-896X
Pedro Marques-VidalService of Internal Medicine, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-4548-8500
Antoine LuttiLaboratory for Research in Neuroimaging, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0003-3281-5477
Ferath KherifLaboratory for Research in Neuroimaging, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0001-5698-0413
Raphael HeinzerCentre for Investigation and Research on Sleep, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-3215-7788
Bogdan DraganskiLaboratory for Research in Neuroimaging, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-5159-5919
University Hospital of Lausanne · CHUniversity of Lausanne · CH

Funding

Swiss National Science Foundation
6 · The paper itself

Abstract

Obstructive sleep apnea syndrome (OSA) may be a risk factor for Alzheimer's disease. One of the hallmarks of Alzheimer's disease is disturbed iron homeostasis leading to abnormal iron deposition in brain tissue. To date, there is no empirical evidence to support the hypothesis of altered brain iron homeostasis in patients with obstructive sleep apnea as well. Data were analysed from 773 participants in the HypnoLaus study (mean age 55.9 ± 10.3 years) who underwent polysomnography and brain MRI. Cross-sectional associations were tested between OSA parameters and the MRI effective transverse relaxation rate (R2*) - indicative of iron content - in 68 grey matter regions, after adjustment for confounders. The group with severe OSA (apnea-hypopnea index ≥30/h) had higher iron levels in the left superior frontal gyrus (F

Indexed as

Alzheimer DiseaseSleep Apnea, ObstructiveAgedBrainCross-Sectional StudiesHumansIronMagnetic Resonance ImagingMiddle AgedIronageingAlzheimer's diseaseneurodegenerationR2*sleep-disordered breathing

Identifiers

PMID35830960
PMCPMC9787990
OpenAlexW4285393324

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.