Cited by 28Parkinson's Disease Mechanisms and TreatmentsNeurological disorders and treatmentsNuclear Receptors and Signaling

Patient-specific models link neurotransmitter receptor mechanisms with motor and visuospatial axes of Parkinson’s disease

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Khan, Ahmed Faraz, Adewale, Quadri, Lin, Sue-Jin, Baumeister, Tobias R., Zeighami, Yashar, Carbonell, Felix, Palomero-Gallagher, Nicola, Iturria-Medina, Yasser·2023·Nature Communications

Abstract

Parkinson’s disease involves multiple neurotransmitter systems beyond the classical dopaminergic circuit, but their influence on structural and functional alterations is not well understood. Here, we use patient-specific causal brain modeling to identify latent neurotransmitter receptor-mediated mechanisms contributing to Parkinson’s disease progression. Combining the spatial distribution of 15 receptors from post-mortem autoradiography with 6 neuroimaging-derived pathological factors, we detect a diverse set of receptors influencing gray matter atrophy, functional activity dysregulation, microstructural degeneration, and dendrite and dopaminergic transporter loss. Inter-individual variability in receptor mechanisms correlates with symptom severity along two distinct axes, representing motor and psychomotor symptoms with large GABAergic and glutamatergic contributions, and cholinergically-dominant visuospatial, psychiatric and memory dysfunction. Our work demonstrates that receptor architecture helps explain multi-factorial brain re-organization, and suggests that distinct, co-existing receptor-mediated processes underlie Parkinson’s disease.

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  1. [36]Pagano G Niccolini F Politis M Imaging in Parkinson’s disease,” Clin. Med. 2016 16 371 10.7861/clinmedicine.16-4-371 PMC6280219 27481384 · DOI

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Authors
Khan, A. F., Adewale, Q., Lin, S.-J., Baumeister, T. R., Zeighami, Y., Carbonell, F., Palomero-Gallagher, N., & Iturria-Medina, Y.
Affiliations
Montreal Neurological Institute and Hospital (CA)
Venue
Nature Communications
Published
2023-09-26
Volume
14
Issue
1
Pages
6009-6009
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4387041470
Cited by
28
References
114
Citations by year
2026: 8 · 2025: 10 · 2024: 10
FWCI
4.74
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • RWTH Publications (RWTH Aachen) (submittedVersion, other-oa)
  • RWTH Publications (RWTH Aachen)
  • JuSER Publikationsportal
Funders
  • Weston Brain Institute
  • European Commission
  • Canada First Research Excellence Fund
  • Natural Sciences and Engineering Research Council of Canada
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
Parkinson's disease, neurotransmitter receptors, gray matter atrophy, GABAergic system, glutamatergic system, cholinergic dysfunction, motor symptoms, visuospatial impairment, symptom severity
MeSH terms
Brain, Cerebral Cortex, Dopamine, Humans, Parkinson Disease, Receptors, Neurotransmitter, Neuroimaging

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