Longitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorder

Abstract Isolated rapid eye movement sleep behavior disorder is a prodrome of α-synucleinopathies. Using positron emission tomography, we assessed changes in Parkinson’s disease-related motor and cognitive metabolic networks and caudate/putamen dopaminergic input in a 4-year longitudinal imaging stu...

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Main Authors: Chris C. Tang, Yoshikazu Nakano, An Vo, Nha Nguyen, Katharina A. Schindlbeck, Paul J. Mattis, Kathleen L. Poston, Jean-François Gagnon, Ronald B. Postuma, Martin Niethammer, Yilong Ma, Shichun Peng, Vijay Dhawan, David Eidelberg
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-024-54695-z
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author Chris C. Tang
Yoshikazu Nakano
An Vo
Nha Nguyen
Katharina A. Schindlbeck
Paul J. Mattis
Kathleen L. Poston
Jean-François Gagnon
Ronald B. Postuma
Martin Niethammer
Yilong Ma
Shichun Peng
Vijay Dhawan
David Eidelberg
author_facet Chris C. Tang
Yoshikazu Nakano
An Vo
Nha Nguyen
Katharina A. Schindlbeck
Paul J. Mattis
Kathleen L. Poston
Jean-François Gagnon
Ronald B. Postuma
Martin Niethammer
Yilong Ma
Shichun Peng
Vijay Dhawan
David Eidelberg
author_sort Chris C. Tang
collection DOAJ
description Abstract Isolated rapid eye movement sleep behavior disorder is a prodrome of α-synucleinopathies. Using positron emission tomography, we assessed changes in Parkinson’s disease-related motor and cognitive metabolic networks and caudate/putamen dopaminergic input in a 4-year longitudinal imaging study of 13 male subjects with this disorder. We also correlated times to phenoconversion with baseline network expression in an independent validation sample. Expression values of both Parkinson’s disease-related networks increased over time while dopaminergic input gradually declined in the longitudinal cohort. While abnormal functional connections were identified at baseline in both networks, others bridging these networks appeared later. These changes resulted in compromised information flow through the networks years before phenoconversion. We noted an inverse correlation between baseline network expression and times to phenoconversion to Parkinson’s disease or dementia with Lewy bodies in the validation sample. Here, we show that the rate of network progression is a useful outcome measure in disease modification trials.
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spelling doaj-art-20c2a84870284749a16adedc0a31cb582025-01-05T12:36:24ZengNature PortfolioNature Communications2041-17232024-12-0115111210.1038/s41467-024-54695-zLongitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorderChris C. Tang0Yoshikazu Nakano1An Vo2Nha Nguyen3Katharina A. Schindlbeck4Paul J. Mattis5Kathleen L. Poston6Jean-François Gagnon7Ronald B. Postuma8Martin Niethammer9Yilong Ma10Shichun Peng11Vijay Dhawan12David Eidelberg13Center for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchDepartment of Neurology and Neurological Sciences, Stanford University School of MedicineCentre d’Études Avancées en Médecine du Sommeil, Hôpital du Sacré-Cœur de MontréalCentre d’Études Avancées en Médecine du Sommeil, Hôpital du Sacré-Cœur de MontréalCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchCenter for Neurosciences, The Feinstein Institutes for Medical ResearchAbstract Isolated rapid eye movement sleep behavior disorder is a prodrome of α-synucleinopathies. Using positron emission tomography, we assessed changes in Parkinson’s disease-related motor and cognitive metabolic networks and caudate/putamen dopaminergic input in a 4-year longitudinal imaging study of 13 male subjects with this disorder. We also correlated times to phenoconversion with baseline network expression in an independent validation sample. Expression values of both Parkinson’s disease-related networks increased over time while dopaminergic input gradually declined in the longitudinal cohort. While abnormal functional connections were identified at baseline in both networks, others bridging these networks appeared later. These changes resulted in compromised information flow through the networks years before phenoconversion. We noted an inverse correlation between baseline network expression and times to phenoconversion to Parkinson’s disease or dementia with Lewy bodies in the validation sample. Here, we show that the rate of network progression is a useful outcome measure in disease modification trials.https://doi.org/10.1038/s41467-024-54695-z
spellingShingle Chris C. Tang
Yoshikazu Nakano
An Vo
Nha Nguyen
Katharina A. Schindlbeck
Paul J. Mattis
Kathleen L. Poston
Jean-François Gagnon
Ronald B. Postuma
Martin Niethammer
Yilong Ma
Shichun Peng
Vijay Dhawan
David Eidelberg
Longitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorder
Nature Communications
title Longitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorder
title_full Longitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorder
title_fullStr Longitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorder
title_full_unstemmed Longitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorder
title_short Longitudinal network changes and phenoconversion risk in isolated REM sleep behavior disorder
title_sort longitudinal network changes and phenoconversion risk in isolated rem sleep behavior disorder
url https://doi.org/10.1038/s41467-024-54695-z
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