OSCR

Global network and local vulnerabilities underlie brain atrophy across Parkinson's disease stages.

Overview

Authors: Andrew Vo1, Christina Tremblay2, Shady Rahayel2, Sarah Al-Bachari3,4, Henk W Berendse5,6, Joanna K Bright7, Fernando Cendes8, Emile d’Angremont6,9, John C Dalrymple-Alford10,11, Ines Debove12, Michiel F Dirkx13,14, Jason Druzgal15, Gaëtan Garraux16,17, Rick C Helmich13,14, Michele T Hu18, Neda Jahanshad19, Martin E Johansson13,14, Johannes C Klein20, Max A Laansma6,9, Corey T McMillan21
and 25 other authorsTracy R Melzer10,11,22,23, Bratislav Misic1, Philip Mosley24, Conor Owens-Walton19, Laura M Parkes25,26, Clelia Pellicano27, Fabrizio Piras27, Kathleen L Poston28, Mario Rango29, Christian Rummel30, Petra Schwingenschuh31, Melanie Suette31, Paul M Thompson19, Duygu Tosun32, Chih-Chien Tsai33, Tim D van Balkom6,9,34, Odile A van den Heuvel6,9,34, Ysbrand D van der Werf6,9, Eva M van Heese6,9, Chris Vriend9,34,35, Jiun-Jie Wang36, Roland Wiest30, Clarissa L Yasuda8,37, Alain Dagher1, ENIGMA-Parkinson’s Study
37 affiliations
  1. Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal H3A 2B4, Canada
  2. Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Canada
  3. Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4AT, UK
  4. Division of Neuroscience and Experimental Psychology, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK
  5. Department of Neurology, Amsterdam UMC, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
  6. Amsterdam Neuroscience, Neurodegeneration, 1081 HV Amsterdam, The Netherlands
  7. Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
  8. Department of Neurology, University of Campinas–UNICAMP, Campinas 13083-888, Brazil
  9. Department of Anatomy and Neurosciences, Amsterdam UMC, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
  10. Te Kura Mahi ā-Hirikapo | School of Psychology, Speech and Hearing, University of Canterbury, 8041 Christchurch, New Zealand
  11. New Zealand Brain Research Institute, 8011 Christchurch, New Zealand
  12. Department of Neurology, Inselspital, University Hospital Bern, University of Bern, CH-3010 Bern, Switzerland
  13. Department of Neurology and Center of Expertise for Parkinson & Movement Disorders, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GC Nijmegen, The Netherlands
  14. Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 EN Nijmegen, The Netherlands
  15. Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22903, USA
  16. MoVeRe group, GIGA-CRC in vivo imaging, University of Liège, 4000 Liège, Belgium
  17. Department of Neurology, CHU Liège, 4000 Liège, Belgium
  18. Division of Clinical Neurology, Department of Clinical Neurosciences, Oxford Parkinson’s Disease Centre, Nuffield, University of Oxford, Oxford OX3 9DU, UK
  19. Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA 90033, USA
  20. Division of Clinical Neurology, Department of Clinical Neurosciences; Oxford Centre for Integrative Neuroimaging, Oxford Parkinson’s Disease Centre, Nuffield, University of Oxford, Oxford OX3 9DU, UK
  21. Department of Neurology, Perelman School of Medicine, University of Pennsylvania, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
  22. Department of Medicine, University of Otago, 8011 Christchurch, New Zealand
  23. Pacific Radiology Canterbury, 8031 Christchurch, New Zealand
  24. QIMR Berghofer Medical Research Institute, Queensland 4006, Australia
  25. Division of Psychology, Communication and Human Neuroscience, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK
  26. Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester M6 8HD, UK
  27. Laboratory of Neuropsychiatry, IRCCS Santa Lucia Foundation, 00179 Rome, Italy
  28. Department of Neurology & Neurological Sciences, Movement Disorders, Stanford University, Palo Alto, CA 94304, USA
  29. Excellence Interdepartmental Center for Advanced MR Techniques and Department of Neurosciences, Neurology Unit, Parkinson’s Disease Center, Fondazione Cà Granda, IRCCS, Ospedale Policlinico, University of Milan, 20122 Milan, Italy
  30. Support Center for Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, CH-3010 Bern, Switzerland
  31. Department of Neurology, Medical University of Graz, 8036 Graz, Austria
  32. Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA 94143, USA
  33. Healthy Ageing Research Center, Chang Gung University, Taoyuan City 33302, Taiwan
  34. Department of Psychiatry, Amsterdam UMC, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
  35. Amsterdam Neuroscience, Brain Imaging, 1081 HV Amsterdam, The Netherlands
  36. Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan City 33302, Taiwan
  37. Brazilian Institute of Neuroscience and Neurotechnology, Campinas 13083-888, Brazil
Institutions: Montreal Neurological Institute and Hospital (Canada); McGill University (Canada); Hôpital du Sacré-Cœur de Montréal (Canada); University of Manchester (United Kingdom); Lancaster University (United Kingdom); Amsterdam Neuroscience (Netherlands); Amsterdam University Medical Centers (Netherlands); Vrije Universiteit Amsterdam (Netherlands); King's College London (United Kingdom); Universidade Estadual de Campinas (UNICAMP) (Brazil); University of Canterbury (New Zealand); New Zealand Brain Research Institute (New Zealand); University of Bern (Switzerland); University Hospital of Bern (Switzerland); Radboud University Nijmegen (Netherlands); Radboud University Medical Center (Netherlands); Donders Centre for Cognitive Neuroimaging (Netherlands); Donders Institute for Brain, Cognition and Behaviour (Netherlands); University of Virginia (United States); University of Liège (Belgium); Centre Hospitalier Universitaire de Liège (Belgium); University of Oxford (United Kingdom); University of Southern California (United States); Wellcome Centre for Integrative Neuroimaging (United Kingdom); University of Pennsylvania (United States); University of Otago (New Zealand); QIMR Berghofer Medical Research Institute (Australia); Manchester Academic Health Science Centre (United Kingdom); Fondazione Santa Lucia (Italy); Stanford University (United States); University of Milan (Italy); Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico (Italy); Medical University of Graz (Austria); University of California, San Francisco (United States); Chang Gung University (Taiwan); Brazilian Institute of Neuroscience and Neurotechnology (Brazil)
Journal: Brain : a journal of neurology, volume 149, issue 7, pages 2380-2394
Dates: published online 7 July 2026; in print July 2026
Type: Research article · Language: English
License: CC BY
Identifiers: DOI 10.1093/brain/awaf432 · PMID 41237265 · PMCID PMC13337226 · OpenAlex W4416222230
Open access: hybrid, a free copy (OpenAlex)
Status: data only
Categories: genetics / omics (modality), structural MRI / diffusion (modality), human (organism), Parkinson's (population)
Methods: Connectivity, Statistics, Machine learning, Preprocessing, Graphs, Smoothing, state filtering, decompositions, fMRI & imaging
Keywords: Parkinson’s disease, neurodegeneration, structural MRI, connectivity, imaging transcriptomics
MeSH: Brain*, Nerve Net*, Parkinson Disease*, Aged, Atrophy, Cohort Studies, Disease Progression, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neural Pathways (* major topic)
Topic: Functional Brain Connectivity Studies (Cognitive Neuroscience, Neuroscience), according to OpenAlex
Funding: Health Research Council of New Zealand (P50 AG047366, R01 NS115114, 20/538, K23 NS075097); NINDS NIH HHS (R01 NS115114, K23 NS075097); GE Healthcare; Parkinson's UK; National Institute for Health and Care Research; University of Oxford; National Institutes of Health (S10OD032285); Lab10X; Neurological Foundation of New Zealand (2232 PRG); São Paulo Research Foundation (2013/07559-3); Wellcome Trust (203139/A/16/Z, 203139/Z/16/Z); Michael J. Fox Foundation for Parkinson's Research; European Platform for Neurodegenerative Disorders (H2020); NIA NIH HHS (P01 AG084497, P50 AG047366); ENIGMA (PD R01); NIH HHS (S10OD032285); CPT; NIHR BRC; NIHR Oxford Biomedical Research Centre; PSP Association (RF1NS136995); Marsden Fund New Zealand (UOC2105); Fonds de recherche du Quebec; Research and Education Trust Pacific Radiology
Citations: cited by 2 papers (Europe PMC); 100 references in the paper

Abstract

Parkinson’s disease (PD) is associated with extensive structural brain changes. Recent work has proposed that the spatial pattern of disease pathology is shaped by both network spread and local vulnerability. However, only few studies assessed these biological frameworks in large patient samples across disease stages.

Analyzing the largest imaging cohort in PD to date (n = 3,096 patients), we investigated the roles of network architecture and local brain features by relating regional abnormality maps to normative profiles of connectivity, intrinsic networks, cytoarchitectonics, neurotransmitter receptor densities, and gene expression.

We found widespread cortical and subcortical atrophy in PD to be associated with advancing disease stage, longer time since diagnosis, and poorer global cognition. Structural brain connectivity best explained cortical atrophy patterns in PD and across disease stages. These patterns were robust among individual patients. The precuneus, lateral temporal cortex, and amygdala were identified as likely network-based epicentres, with high convergence across disease stages. Individual epicentres varied significantly among patients, yet they consistently localized to the default mode and limbic networks. Furthermore, we showed that regional overexpression of genes implicated in synaptic structure and signalling conferred increased susceptibility to brain atrophy in PD.

In summary, this study demonstrates in a well-powered sample that structural brain abnormalities in PD across disease stages and within individual patients are influenced by both network spread and local vulnerability.

Reproduced under the paper's license (CC BY), from the paper cited above.

Code

The paper links to its data, not to its authors' code: see the Data section.

The paper's code and data availability statement is in the Data section.

Tracing map

A tracing map links a paper to the code its authors published: this paper has none, so it has no map.

Data

Datasets cited

Data availability

Publicly available datasets used in this report include the Parkinson Progression Marker Initiative (PPMI; ppmi-info.org), OpenNeuro Japan including Udall cohort (openneuro.org/datasets/ds000245), and Neurocon and Tao Wu’s datasets (fcon_1000.projects.nitrc.org/indi/retro/parkinsons.html).

Individual ENIGMA-PD sites retain ownership of their MRI data and only share anonymized derived data for analysis. Data are therefore not openly available but researchers are invited to join the ENIGMA-PD working group where they can formally request derived data via secondary proposals. Data requests are then considered by the individual site’s principal investigator(s). If you are interested in joining the ENIGMA-PD, please contact . For more information, please see the working group website: https://enigma.ini.usc.edu/ongoing/enigma-parkinsons/.

Tools for mapping cortical parcellations to network and cytoarchitectonic partitions and for generating spatial null models are available as part of netneurotools available at https://netneurotools.readthedocs.io/en/latest/. Structural and functional cortico-cortical and subcortico-cortical connectivity matrices are available as part of the enigmatoolbox available at https://enigma-toolbox.readthedocs.io/en/latest/. Volumetric radiotracer maps of neurotransmitter receptors and transporters are available at https://github.com/netneurolab/hansen_receptors. Post-mortem gene expression data from the Allen Human Brain Atlas are available as part of the abagen toolbox available at https://abagen.readthedocs.io/en/stable/.

Reproduced under the paper's license (CC BY), from the paper cited above.

Versions

The history of this record: each version stored by the harvester or made by a correction of its authors or of the maintainers of its code, and what changed in its facts. The texts of the paper (its abstract, its availability statements) are not part of it; versions that changed only those are not listed.

Version 2, 28 September 2026

  • Publisher: n/a → Oxford University Press

Version 1, 27 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 45 authors, 5 keywords, 13 MeSH terms, 23 funders, 99 references.

Cite

This paper

Vo, A., Tremblay, C., Rahayel, S., Al-Bachari, S., Berendse, H. W., Bright, J. K., Cendes, F., d’Angremont, E., Dalrymple-Alford, J. C., Debove, I., Dirkx, M. F., Druzgal, J., Garraux, G., Helmich, R. C., Hu, M. T., Jahanshad, N., Johansson, M. E., Klein, J. C., Laansma, M. A., . . . ENIGMA-Parkinson’s Study. (2026). Global network and local vulnerabilities underlie brain atrophy across Parkinson's disease stages. Brain : a journal of neurology, 149(7), 2380-2394. https://doi.org/10.1093/brain/awaf432

BibTeX

@article{vo2026global,
author = {Vo, Andrew and Tremblay, Christina and Rahayel, Shady and Al-Bachari, Sarah and Berendse, Henk W and Bright, Joanna K and Cendes, Fernando and d’Angremont, Emile and Dalrymple-Alford, John C and Debove, Ines and Dirkx, Michiel F and Druzgal, Jason and Garraux, Gaëtan and Helmich, Rick C and Hu, Michele T and Jahanshad, Neda and Johansson, Martin E and Klein, Johannes C and Laansma, Max A and McMillan, Corey T and Melzer, Tracy R and Misic, Bratislav and Mosley, Philip and Owens-Walton, Conor and Parkes, Laura M and Pellicano, Clelia and Piras, Fabrizio and Poston, Kathleen L and Rango, Mario and Rummel, Christian and Schwingenschuh, Petra and Suette, Melanie and Thompson, Paul M and Tosun, Duygu and Tsai, Chih-Chien and van Balkom, Tim D and van den Heuvel, Odile A and van der Werf, Ysbrand D and van Heese, Eva M and Vriend, Chris and Wang, Jiun-Jie and Wiest, Roland and Yasuda, Clarissa L and Dagher, Alain and {ENIGMA-Parkinson’s Study}},
title = {{Global network and local vulnerabilities underlie brain atrophy across Parkinson's disease stages}},
journal = {Brain : a journal of neurology},
year = {2026},
month = jul,
volume = {149},
number = {7},
pages = {2380--2394},
publisher = {Oxford University Press},
issn = {0006-8950},
doi = {10.1093/brain/awaf432},
url = {https://doi.org/10.1093/brain/awaf432},
pmid = {41237265},
pmcid = {PMC13337226}
}

RIS

TY - JOUR
AU - Vo, Andrew
AU - Tremblay, Christina
AU - Rahayel, Shady
AU - Al-Bachari, Sarah
AU - Berendse, Henk W
AU - Bright, Joanna K
AU - Cendes, Fernando
AU - d’Angremont, Emile
AU - Dalrymple-Alford, John C
AU - Debove, Ines
AU - Dirkx, Michiel F
AU - Druzgal, Jason
AU - Garraux, Gaëtan
AU - Helmich, Rick C
AU - Hu, Michele T
AU - Jahanshad, Neda
AU - Johansson, Martin E
AU - Klein, Johannes C
AU - Laansma, Max A
AU - McMillan, Corey T
AU - Melzer, Tracy R
AU - Misic, Bratislav
AU - Mosley, Philip
AU - Owens-Walton, Conor
AU - Parkes, Laura M
AU - Pellicano, Clelia
AU - Piras, Fabrizio
AU - Poston, Kathleen L
AU - Rango, Mario
AU - Rummel, Christian
AU - Schwingenschuh, Petra
AU - Suette, Melanie
AU - Thompson, Paul M
AU - Tosun, Duygu
AU - Tsai, Chih-Chien
AU - van Balkom, Tim D
AU - van den Heuvel, Odile A
AU - van der Werf, Ysbrand D
AU - van Heese, Eva M
AU - Vriend, Chris
AU - Wang, Jiun-Jie
AU - Wiest, Roland
AU - Yasuda, Clarissa L
AU - Dagher, Alain
AU - ENIGMA-Parkinson’s Study
TI - Global network and local vulnerabilities underlie brain atrophy across Parkinson's disease stages
T2 - Brain : a journal of neurology
J2 - Brain
PY - 2026
DA - 2026/07/01
VL - 149
IS - 7
SP - 2380
EP - 2394
SN - 0006-8950
PB - Oxford University Press
DO - 10.1093/brain/awaf432
UR - https://doi.org/10.1093/brain/awaf432
LA - en
ER -

CSL-JSON

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