Evidence map›Paper›PMID 36068646›Full record

ArticleActa neuropathologica communications2022

Discrepancy between distribution of alpha-synuclein oligomers and Lewy-related pathology in Parkinson's disease.

Hiroaki Sekiya, Asato Tsuji, Yuki Hashimoto, Mariko Takata, Shunsuke Koga, Katsuya Nishida, Naonobu Futamura, Michi Kawamoto, Nobuo Kohara, Dennis W Dickson and 2 more

Open access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
6.6field-weighted citation impact, top 2% of its field
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

43 citing papers in PubMed, 57 citations in OpenAlex.

  1. Trial
  2. Article
  3. Seeing Invisible Oligomers: Rethinking α-Synuclein Pathology Through Proximity Ligation Assay.Movement disorders : official journal of the Movement Disorder Society · 2026
    Review
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  9. Exidavnemab binds to aggregated α-synuclein in human brains affected by α-synucleinopathies.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Article
  10. Article
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  12. Review
  13. Review
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  15. Converging pathologies in neurodegeneration: the mechanistic interplay between α-Synuclein and Tau in Alzheimer's and Parkinson's.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Review
  16. Article
  17. Impact of hippocampal α-synuclein oligomers on cognitive trajectory in patients with dementia with Lewy bodies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  18. Review
  19. Review
  20. 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

12 authors at 6 institutions in 2 countries.

Hiroaki SekiyaDepartment of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA. sekiya.hiroaki@mayo.edu.ORCID 0000-0001-9683-5966
Asato TsujiDivision of Neurology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
Yuki HashimotoDivision of Neurology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
Mariko TakataDivision of Neurology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
Shunsuke KogaDepartment of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.
Katsuya NishidaDepartment of Neurology, National Hospital Organization Hyogo-Chuo Hospital, Sanda, Hyogo, Japan.
Naonobu FutamuraDepartment of Neurology, National Hospital Organization Hyogo-Chuo Hospital, Sanda, Hyogo, Japan.
Michi KawamotoDepartment of Neurology, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan.
Nobuo KoharaDepartment of Neurology, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan.
Dennis W DicksonDepartment of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.
Hisatomo KowaDivision of Neurology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
Tatsushi TodaDivision of Molecular Brain Science, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan. toda@m.u-tokyo.ac.jp.
Kobe University · JPHyogo Chuo National Hospital · JPKobe City Medical Center General Hospital · JPMayo Clinic in Florida · USHyogo University of Health Sciences · JPJacksonville College · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pathological hallmarks of Parkinson's disease (PD) are α-synuclein (αSYN)-positive inclusions referred to as Lewy bodies and Lewy neurites, collectively referred to as Lewy-related pathology (LRP). LRP is thought to propagate in an ascending manner throughout the brain as the disease progresses. LRP is visible with histologic methods and is thought to represent a later stage of the disease process, while αSYN oligomers, which are not visible with routine histologic methods, are considered earlier. There is increasing evidence to suggest that αSYN oligomers may be more toxic than visible LRP. Detecting αSYN oligomers requires special techniques, and their distribution and association with clinical features are important research objectives. In this report, we describe the distribution of αSYN oligomers in multiple cortical and subcortical regions of PD using a proximity ligation assay (PLA). We observe widespread distribution of αSYN oligomers with PLA and more restricted distribution of LRP with αSYN immunohistochemistry. The distribution of αSYN oligomers differed from LRP in that αSYN oligomer burden was significantly greater in the neocortex, while LRP was greater in vulnerable subcortical regions, including the brainstem. We also found that cognitive impairment was associated with αSYN oligomers in the hippocampus. These results suggest that αSYN oligomers may be widely distributed in PD early in the disease process and that they may contribute to cognitive impairment in PD.

Indexed as

alpha-SynucleinParkinson DiseaseHippocampusHumansLewy BodiesNeuronsalpha-SynucleinAlpha-synucleinLewy bodiesOligomersParkinson diseasePathogenesis

Identifiers

PMID36068646
PMCPMC9450240
OpenAlexW4294843283

What OpenQuestion holds

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Registered trials

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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 OpenQuestion graph.