Evidence map›Paper›PMID 33790936›Full record

ArticleDementia and geriatric cognitive disorders extra

Cerebrospinal Fluid Hypocretin and Nightmares in Dementia Syndromes.

Lynn Marie Trotti, Donald L Bliwise, Glenda L Keating, David B Rye, William T Hu

Open access · goldAbstract read
In one paragraph

Article in Dementia and geriatric cognitive disorders extra. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 3 pooled it
0.8field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 3 syntheses or guidelines pooled it, 8 citations in OpenAlex.

  1. Sleep disturbances in Lewy body dementia: A systematic review.International journal of geriatric psychiatry · 2022
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Cerebrospinal-fluid Orexin-A levels in different neurocognitive disorders: a comparison study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Article
  5. Review
  6. 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

5 authors at 1 institution in 1 country.

Lynn Marie TrottiDepartment of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA.
Donald L BliwiseDepartment of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA.
Glenda L KeatingDepartment of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA.
David B RyeDepartment of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA.
William T HuDepartment of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA.
Emory University · US

Funding

Characterization of an endogenous GABA-ergic mechanism underlying hypersomniaR01NS089719 · NINDS · EMORY UNIVERSITY · PI RYE, DAVID B · 2015 to 2018
$2.4M
Antibiotic-mediated improvements in vigilance: mechanisms of action of clarithromycin in hypersomnia syndromesR01NS111280 · NINDS · EMORY UNIVERSITY · PI TROTTI, LYNN MARIE · 2019 to 2023
$2.2M
Sleepiness and sleep drunkenness: narcolepsy versus GABA-related hypersomniaK23NS083748 · NINDS · EMORY UNIVERSITY · PI TROTTI, LYNN MARIE · 2014 to 2018
$918k
Early CSF detection of FTLDK23AG042856 · NIA · EMORY UNIVERSITY · PI HU, WILLIAM TZU-LUNG · 2013 to 2017
$782k
African American Alzheimer's Progression Markers - CSF and Neuro-ImagingR21AG043885 · NIA · EMORY UNIVERSITY · PI HU, WILLIAM TZU-LUNG · 2013 to 2014
$429k
NIA NIH HHS K23 AG042856NIA NIH HHS R21 AG043885NINDS NIH HHS K23 NS083748NINDS NIH HHS R01 NS089719NINDS NIH HHS R01 NS111280
6 · The paper itself

Abstract

BACKGROUND/

aimsHypocretin promotes wakefulness and modulates REM sleep. Alterations in the hypocretin system are increasingly implicated in dementia. We evaluated relationships among hypocretin, dementia biomarkers, and sleep symptoms in elderly participants, most of whom had dementia.

methodsOne-hundred twenty-six adults (mean age 66.2 ± 8.4 years) were recruited from the Emory Cognitive Clinic. Diagnoses were Alzheimer disease (AD;

resultsExcept for sleepiness (worst in DLB) and nocturia (worse in DLB and FTD) sleep symptoms did not differ by diagnosis. CSF hypocretin concentrations were available for 87 participants and normal in 70, intermediate in 16, and low in 1. Hypocretin levels did not differ by diagnosis. Hypocretin levels correlated with CSF total τ levels only in men (

conclusionHypocretin levels did not distinguish between dementia syndromes. Disturbing dreams in dementia patients may be related to lower hypocretin concentrations in CSF.

Indexed as

Alzheimer diseaseDementiaDreamsHypocretinNightmares

Identifiers

PMID33790936
PMCPMC7989783
OpenAlexW3129782594

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.