Evidence map›Paper›PMID 30854555›Full record

ArticleSleep2019

Brain atrophy in Parkinson's disease with polysomnography-confirmed REM sleep behavior disorder.

Shady Rahayel, Malo Gaubert, Ronald B Postuma, Jacques Montplaisir, Julie Carrier, Oury Monchi, David Rémillard-Pelchat, Pierre-Alexandre Bourgouin, Michel Panisset, Sylvain Chouinard and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Sleep, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 4 pooled it
4.4field-weighted citation impact, top 5% 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

36 citing papers in PubMed, 4 syntheses or guidelines pooled it, 65 citations in OpenAlex.

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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

12 authors at 6 institutions in 1 country.

Shady RahayelCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Malo GaubertCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Ronald B PostumaCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Jacques MontplaisirCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Julie CarrierCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Oury MonchiResearch Centre, Institut universitaire de gériatrie de Montréal, Montreal, Canada.
David Rémillard-PelchatCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Pierre-Alexandre BourgouinCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Michel PanissetUnité des troubles du mouvement André-Barbeau, Centre Hospitalier de l'Université de Montréal, Montreal, Canada.
Sylvain ChouinardUnité des troubles du mouvement André-Barbeau, Centre Hospitalier de l'Université de Montréal, Montreal, Canada.
Sven JoubertResearch Centre, Institut universitaire de gériatrie de Montréal, Montreal, Canada.
Jean-François GagnonCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.
Institut Universitaire de Gériatrie de Montréal · CAUniversité du Québec à Montréal · CACentre Hospitalier de l’Université de Montréal · CAHôpital du Sacré-Cœur de Montréal · CAMontreal General Hospital · CAUniversité de Montréal · CA

Funding

CIHR
6 · The paper itself

Abstract

We aimed to investigate cortical and subcortical brain alterations in people with Parkinson's disease with polysomnography-confirmed rapid eye movement (REM) sleep behavior disorder (RBD). Thirty people with Parkinson's disease, including 15 people with RBD, were recruited and compared with 41 healthy controls. Surface-based cortical and subcortical analyses were performed on T1-weighted images to investigate thickness and shape abnormalities between groups, and voxel-based and deformation-based morphometry were performed to investigate local volume. Correlations were performed in patients to investigate the structural correlates of motor activity during REM sleep. People with RBD showed cortical thinning in the right perisylvian and inferior temporal cortices and shape contraction in the putamen compared with people without RBD. Compared with controls, people with RBD had extensive cortical thinning and volume loss, brainstem volume was reduced, and shape contraction was found in the basal ganglia and hippocampus. In comparison to controls, people without RBD showed more restricted thinning in the sensorimotor, parietal, and occipital cortices, reduced volume in the brainstem, temporal and more posterior areas, and shape contraction in the pallidum and hippocampus. In Parkinson's disease, higher tonic and phasic REM sleep motor activity was associated with contraction of the thalamic surface, extensive cortical thinning, and subtle volume reduction in the middle temporal gyrus. In Parkinson's disease, the presence of RBD is associated with extensive cortical and subcortical abnormalities, suggesting more severe neurodegeneration in people with RBD. This provides potential neuroanatomical correlates for the more severe clinical phenotype reported in people with Parkinson's disease with RBD.

Indexed as

AgedAtrophyBasal GangliaBrainBrain StemFemaleHippocampusHumansMaleMiddle AgedMotor ActivityParkinson DiseasePolysomnographyREM Sleep Behavior DisorderSleep, REMThalamuscortical thicknessParkinson’s diseaseREM sleep behavior disorderStructural MRI

Identifiers

PMID30854555
PMCPMC6559168
OpenAlexW2920800417

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.