Evidence map›Paper›PMID 24453082›Full record

ArticleNeurology2014

Abnormal metabolic network activity in REM sleep behavior disorder.

Florian Holtbernd, Jean-François Gagnon, Ron B Postuma, Yilong Ma, Chris C Tang, Andrew Feigin, Vijay Dhawan, Mélanie Vendette, Jean-Paul Soucy, David Eidelberg and 1 more

Abstract readComparative Study
In one paragraph

Article in Neurology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

76 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Correlations between dopaminergic dysfunction and abnormal metabolic network activity in REM sleep behavior disorder.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Trial
  5. Neuroimaging in multiple system atrophy: clinical implications and novel developments.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Neurology · 2024
    Article
  13. Review
  14. Functional Brain Networks to Evaluate Treatment Responses in Parkinson's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Article
  15. Article
  16. Review
  17. Article
  18. Derivation and Validation of a Phenoconversion-Related Pattern in Idiopathic Rapid Eye Movement Behavior Disorder.Movement disorders : official journal of the Movement Disorder Society · 2023
    Article
  19. Stereotyped Relationship Between Motor and Cognitive Metabolic Networks in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  20. Predictors of RBD progression and conversion to synucleinopathies.Current neurology and neuroscience reports · 2022
    Review

16 more citing papers are in PubMed but not listed here.

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

11 authors.

Florian HoltberndFrom the Center for Neurosciences (F.H., Y.M., C.C.T., A.F., V.D., D.E.), The Feinstein Institute for Medical Research, Manhasset, NY; Center for Advanced Research in Sleep Medicine (J.-F.G., R.B.P., M.V., J.M.), Hôpital du Sacré-Coeur de Montréal; Department of Psychology (J.-F.G., M.V.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Montreal Neurological Institute (J.-P.S.), McGill University; and Department of Psychiatry (J.M.), University of Montreal, Montréal, Canada.
Jean-François Gagnon
Ron B Postuma
Yilong Ma
Chris C Tang
Andrew Feigin
Vijay Dhawan
Mélanie Vendette
Jean-Paul Soucy
David Eidelberg
Jacques Montplaisir

Funding

Statistics and Data Management CoreP50NS071675 · NINDS · FEINSTEIN INSTITUTE FOR MEDICAL RESEARCH · PI EIDELBERG, DAVID · 2010 to 2014
$9.3M
CIHR
6 · The paper itself

Abstract

objectiveTo determine whether the Parkinson disease-related covariance pattern (PDRP) expression is abnormally increased in idiopathic REM sleep behavior disorder (RBD) and whether increased baseline activity is associated with greater individual risk of subsequent phenoconversion.

methodsFor this cohort study, we recruited 2 groups of RBD and control subjects. Cohort 1 comprised 10 subjects with RBD (63.5 ± 9.4 years old) and 10 healthy volunteers (62.7 ± 8.6 years old) who underwent resting-state metabolic brain imaging with (18)F-fluorodeoxyglucose PET. Cohort 2 comprised 17 subjects with RBD (68.9 ± 4.8 years old) and 17 healthy volunteers (66.6 ± 6.0 years old) who underwent resting brain perfusion imaging with ethylcysteinate dimer SPECT. The latter group was followed clinically for 4.6 ± 2.5 years by investigators blinded to the imaging results. PDRP expression was measured in both RBD groups and compared with corresponding control values.

resultsPDRP expression was elevated in both groups of subjects with RBD (cohort 1: p < 0.04; cohort 2: p < 0.005). Of the 17 subjects with long-term follow-up, 8 were diagnosed with Parkinson disease or dementia with Lewy bodies; the others did not phenoconvert. For individual subjects with RBD, final phenoconversion status was predicted using a logistical regression model based on PDRP expression and subject age at the time of imaging (r(2) = 0.64, p < 0.0001).

conclusionsLatent network abnormalities in subjects with idiopathic RBD are associated with a greater likelihood of subsequent phenoconversion to a progressive neurodegenerative syndrome.

Indexed as

AgedFluorodeoxyglucose F18Follow-Up StudiesHumansLewy Body DiseaseMiddle AgedMultimodal ImagingParkinson DiseasePositron-Emission TomographyPredictive Value of TestsREM Sleep Behavior DisorderSingle-Blind MethodTomography, Emission-Computed, Single-PhotonTomography, X-Ray ComputedFluorodeoxyglucose F18

Identifiers

PMID24453082
PMCPMC3963420

What OpenQuestion holds

Textmetadata
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.