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This page is alzhub.org's plain-English summary of a published study, not the paper itself. It is generated from the record we hold for this study, sourced and linked below — check the original for the full text and methods.

✓ Peer-reviewed alzhub usefulness score 67 out of 100. Brain tissue and pathology

Reviewed as evidence on: Sleep fragmentation (micro-awakenings) / poor sleep x glymphatic gene and AD genetic risk / AD brain changes 4 studies (what the news said). Being listed means the study bears on the question, not that it agrees with the news.

Topic: Amyloid, tau and blood-test diagnosis

Importance Sleep and circadian problems are very common in Alzheimer disease (AD). Recent animal studies suggest a bidirectional relationship between sleep and β-amyloid (Aβ), a key molecule involved in AD pathogenesis. Objective To test whether Aβ deposition in preclinical AD, prior to the appearance of cognitive impairment, is associated with changes in quality or quantity of sleep.

Cite this study APA, Vancouver, BibTeX · download .bib or .ris

APA 7th

Ju, Y. E., McLeland, J. S., Toedebusch, C. D., Xiong, C., Fagan, A. M., Duntley, S. P., et al. (2013). Sleep quality and preclinical Alzheimer disease. JAMA neurology. https://doi.org/10.1001/jamaneurol.2013.2334

Vancouver

Ju YE, McLeland JS, Toedebusch CD, Xiong C, Fagan AM, Duntley SP, et al. Sleep quality and preclinical Alzheimer disease. JAMA neurology. 2013. doi:10.1001/jamaneurol.2013.2334. PMID: 23479184.

BibTeX

@article{ju2013-23479184,
  author  = {Ju, Y. E. and McLeland, J. S. and Toedebusch, C. D. and Xiong, C. and Fagan, A. M. and Duntley, S. P. and Morris, J. C. and Holtzman, D. M.},
  title   = {{Sleep quality and preclinical Alzheimer disease}},
  journal = {JAMA neurology},
  year    = {2013},
  doi     = {10.1001/jamaneurol.2013.2334},
  pmid    = {23479184},
  url     = {https://doi.org/10.1001/jamaneurol.2013.2334}
}

Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record names 8 authors; APA and Vancouver show the first six, BibTeX and the downloads carry all of them. Check the citation against the original before you use it.

Key findings

Why it matters

Sleep and circadian problems are "very common in Alzheimer disease," and the authors note that "recent animal studies suggest a bidirectional relationship between sleep and β-amyloid." This cross-sectional study of community volunteers at the Washington University Knight Alzheimer's Disease Research Center (October 2010 to June 2012) asked whether amyloid build-up in people who do not yet have memory or thinking problems goes along with changes in how well or how long they sleep. Our stored summary ends before the results, so check the original paper for what it found; a single snapshot like this can show an association but not which came first, and it tests no treatment.

Study details

How this study scored 67/100
How this study's score is builtJournal tier 9 of 10; Journal's citation record 2 of 4; Study design 4 of 12; Strength of evidence 3 of 5; Peer-review validation 10 of 10; How recent 1 of 5; Sample size 2 of 4; Effect reported 2 of 3; Studied in people 3 of 3; Randomised / blinded 0 of 2; Times cited 6 of 7; Citations per year 4 of 5; Impact for its field and year 5 of 6; Cited by studies here 4 of 6; Still being cited 3 of 4; Senior author's track record 4 of 4; Institution's track record 2 of 3; Multi-centre collaboration 1 of 3; Indexed in PubMed 2 of 2; Free to read 0 of 2. Total 67 of 100.67 of 100 points earned33 not earned

Published in a leading specialty journal, and it is a snapshot of people at one point in time. Scored zero for randomised / blinded because the record does not state it.

ComponentPointsWhy
Journal tier 9 / 10 Tier 2 — leading specialty journal (JAMA neurology)
Journal's citation record 2 / 4 JAMA Neurology: journal h-index 235 (OpenAlex, 2026-10-29)
Study design 4 / 12 A snapshot of people at one point in time
Strength of evidence 3 / 5 Rated “moderate” in our summary
Peer-review validation 10 / 10 Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent 1 / 5 2013 — within 20 year(s) of the newest study here
Sample size 2 / 4 145 participants
Effect reported 2 / 3 Effect reported as a number, without an interval or test
Studied in people 3 / 3 Studied in people (participant count stated)
Randomised / blinded 0 / 2 No randomisation or blinding stated — scores zero (not stated in the record — scored 0)
Times cited 6 / 7 Cited 742 times (OpenAlex, 2026-10-10)
Citations per year 4 / 5 49.5 citations a year over 15 year(s) since 2013
Impact for its field and year 5 / 6 Cited 27.1× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here 4 / 6 Cited by 36 other studies in this library
Still being cited 3 / 4 Cited 176 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record 4 / 4 Last-listed author David M. Holtzman: h-index 206 (OpenAlex, whole career)
Institution's track record 2 / 3 Washington University in St. Louis: institution h-index 1,962 (OpenAlex)
Multi-centre collaboration 1 / 3 OpenAlex lists 3 institution(s) in 1 country
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 23479184)
Free to read 0 / 2 Behind a paywall — scores zero
Total 67 / 100 —

What each of these 20 components measures, and what this score is not →

Read the original

Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).

Studies this one cites

Referenced by this study and also in the alzhub library, so you can read them here.

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