Cited by 623Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingNeurological disorders and treatments

Neuropathology of Parkinson disease

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Dickson, Dennis W.·2018·Parkinsonism & Related Disorders

Abstract

Introduction Parkinson's disease (PD) is characterized by bradykinesia, rigidity, postural instability and tremor. Several pathologic processes can produce this syndrome, but neurodegeneration accompanied by neuronal inclusions composed of α-synuclein (Lewy bodies) is considered the typical pathologic correlate of PD.Methods The neuropathologic features of PD are reviewed based upon personal experience and review of the literature. Molecular pathology of PD is summarized from cell biological and animal studies.Results The pathologic feature that correlates with signs and symptoms of PD is neuronal loss in the substantia nigra with dopaminergic denervation of the striatum. Neuronal degeneration in the substantia nigra preferentially affects the ventrolateral cell group that projects to posterolateral putamen and is accompanied by formation of Lewy bodies composed of aggregated α-synuclein. Some patients with PD are found at autopsy to have other pathologic processes, such as multiple system atrophy, progressive supranuclear palsy and cerebrovascular disease (vascular Parkinsonism). The peripheral autonomic nervous system is also affected. The triggering event in PD is unknown, but recent studies suggest a role for loss of nuclear membrane integrity. Once α-synuclein aggregates forms, evidence supports cell-to-cell propagation.Conclusion PD is a multisystem synucleinopathy caused by poorly characterized genetic and environmental factors that produces degeneration in selectively vulnerable neuronal populations.

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Crossref · 10.1016/j.parkreldis.2017.07.033

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  • PD neurodegeneration occurs in the substantia nigra with dopaminergic denervation of the striatum and Lewy bodies containing aggregated α-synuclein.

    “Neurodegeneration occurs in the substantia nigra, with dopaminergic denervation of the striatum and accumulation of Lewy bodies containing aggregated α-synuclein59.”

    From Microglia in neurodegeneration (2018) · cites this paper as [59]

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Authors
Dickson, D. W.
Affiliations
Mayo Clinic (US)
Corresponding author
Dickson, Dennis W.
Venue
Parkinsonism & Related Disorders
Publisher
Elsevier BV
Published
2018-01
Volume
46
Pages
S30-S33
ISSN
1353-8020 (ISSN-L)
OpenAlex
W2501464909
Cited by
623
References
166
Citations by year
2026: 53 · 2025: 80 · 2024: 80 · 2023: 82 · 2022: 100 · 2021: 91 · 2020: 63 · 2019: 39 · 2018: 22 · 2017: 3 · 2016: 2 · 2014: 2 · 2012: 1
FWCI
4.61
Type
journal article
Language
en
Open access
Locations
  • Parkinsonism & Related Disorders (acceptedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NINDS (P50-NS072187)
  • Mangurian Foundation Lewy Body Dementia Program
  • CurePSP/Tau Consortium Brain Bank
  • The Robert E. Jacoby Professorship
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
Parkinson's disease, neuropathology
MeSH terms
Neuropathology, Brain, Humans, Parkinson Disease

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