Evidence map›Paper›PMID 40879604›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2025

Plasma Markers of Astrocytic and Axonal Integrity in Idiopathic/Isolated REM Sleep Behavior Disorder (iRBD) as Predictors of Dementia with Lewy Bodies.

Aline Delva, Cinzia Zatti, Amélie Pelletier, Jacques Montplaisir, Jean-François Gagnon, Gwendlyn Kollmorgen, Tony Kam-Thong, Thomas Kustermann, Venissa Machado, Ronald B Postuma

Abstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

10 authors.

Aline DelvaThe Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada.ORCID https://orcid.org/0000-0001-8497-2314
Cinzia ZattiDepartment of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy.
Amélie PelletierCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.
Jacques MontplaisirCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.
Jean-François GagnonCentre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.
Gwendlyn KollmorgenRoche Diagnostics GmbH, Penzberg, Germany.
Tony Kam-ThongRoche Pharma Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland.
Thomas KustermannRoche Pharma Research and Early Development, Neurosciences and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland.
Venissa MachadoRoche Pharma Research and Early Development, Neurosciences and Rare Diseases, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland.
Ronald B PostumaThe Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada.ORCID https://orcid.org/0000-0002-6468-4734

Funding

CIHR #399711F. Hoffmann-La Roche
6 · The paper itself

Abstract

backgroundPlasma biomarkers of neurodegeneration, astrogliosis, and neuroinflammation have been studied as potential biomarkers in neurodegenerative diseases. This study investigated whether these markers may predict phenoconversion to Parkinson's disease or dementia with Lewy bodies (DLB) in idiopathic/isolated REM sleep behavior disorder (iRBD).

methodsIn this longitudinal, single-center, iRBD cohort study (enrolled 2004-2022), plasma glial fibrillary acidic protein (GFAP), interleukin-6 (IL-6), neurofilament light chain (NfL), snare-associated protein 25 (SNAP25), soluble triggering receptor expressed on myeloid cells 2 (sTREM2), and chitinase 3-like protein (YKL-40) were measured using NeuroToolKit (Roche Diagnostics International Ltd). Associations between baseline plasma biomarkers and eventual development of manifest synucleinopathy during follow-up (up to 11 years) were assessed.

resultsA total of 143 iRBD participants (110 male, 67.7 ± 8.0 years) were included. Compared with non-phenoconverters, DLB-converters had higher baseline GFAP (0.115 vs. 0.071 ng/ml, P = 0.002) and NfL (3.55 vs. 2.51 pg/ml, P = 0.010). Baseline levels predicted DLB using non-phenoconverters without mild cognitive impairment as reference with area under the curve (AUC) = 0.79 for GFAP and 0.84 for NfL.

conclusionHigher plasma GFAP and NfL were associated with increased risk of developing DLB in prodromal synucleinopathies. © 2025 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

AstrocytesAxonsLewy Body DiseaseREM Sleep Behavior DisorderAgedBiomarkersFemaleGlial Fibrillary Acidic ProteinHumansLongitudinal StudiesMaleMiddle AgedNeurofilament ProteinsParkinson DiseaseBiomarkersGlial Fibrillary Acidic Proteinneurofilament protein LNeurofilament Proteins

Identifiers

PMID40879604
PMCPMC12661635

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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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 Socratic graph.