Evidence map›Paper›PMID 31758091›Full record

ArticleMolecular psychiatry2021

Systemic α-synuclein injection triggers selective neuronal pathology as seen in patients with Parkinson's disease.

Wei-Li Kuan, Katherine Stott, Xiaoling He, Tobias C Wood, Sujeong Yang, Jessica C F Kwok, Katie Hall, Yanyan Zhao, Ole Tietz, Franklin I Aigbirhio and 2 more

Abstract read
In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Refining patterns of MEF2C effects in white matter microstructure and psychiatric features.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Article
  11. Article
  12. Review
  13. Article
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  15. Article
  16. The Origins of the Protein Spread in Parkinson's Disease.Movement disorders clinical practice · 2021
    Article
  17. Article
  18. Review
  19. Article
  20. Animal Model for Prodromal Parkinson's Disease.International journal of molecular sciences · 2020
    Review
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.

Wei-Li KuanJohn van Geest Centre for Brain Repair, Department of Clinical Neuroscience, University of Cambridge, Cambridge, CB2 0PY, UK. wlk21@cam.ac.uk.ORCID http://orcid.org/0000-0002-0273-1320
Katherine StottDepartment of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK.ORCID http://orcid.org/0000-0002-4014-1188
Xiaoling HeJohn van Geest Centre for Brain Repair, Department of Clinical Neuroscience, University of Cambridge, Cambridge, CB2 0PY, UK.
Tobias C WoodDepartment of Neuroimaging, Kings College London, London, SE5 8AF, UK.
Sujeong YangJohn van Geest Centre for Brain Repair, Department of Clinical Neuroscience, University of Cambridge, Cambridge, CB2 0PY, UK.
Jessica C F KwokJohn van Geest Centre for Brain Repair, Department of Clinical Neuroscience, University of Cambridge, Cambridge, CB2 0PY, UK.ORCID http://orcid.org/0000-0002-9798-9083
Katie HallJohn van Geest Centre for Brain Repair, Department of Clinical Neuroscience, University of Cambridge, Cambridge, CB2 0PY, UK.
Yanyan ZhaoWolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK.
Ole TietzWolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK.
Franklin I AigbirhioWolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK.
Anthony C VernonDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9RX, UK.ORCID http://orcid.org/0000-0001-7305-1069
Roger A BarkerJohn van Geest Centre for Brain Repair, Department of Clinical Neuroscience, University of Cambridge, Cambridge, CB2 0PY, UK.

Funding

Department of HealthMedical Research Council MC_PC_12009Medical Research Council MR/K02308X/1Medical Research Council MR/M009041/1Medical Research Council MR/N025377/1Medical Research Council MR/N026063/1Medical Research Council MR/R015724/1Medical Research Council MR/S005528/1Wellcome Trust 203151
6 · The paper itself

Abstract

Parkinson's disease (PD) is an α-synucleinopathy characterized by the progressive loss of specific neuronal populations. Here, we develop a novel approach to transvascularly deliver proteins of complex quaternary structures, including α-synuclein preformed fibrils (pff). We show that a single systemic administration of α-synuclein pff triggers pathological transformation of endogenous α-synuclein in non-transgenic rats, which leads to neurodegeneration in discrete brain regions. Specifically, pff-exposed animals displayed a progressive deterioration in gastrointestinal and olfactory functions, which corresponded with the presence of cellular pathology in the central and enteric nervous systems. The α-synuclein pathology generated was both time dependent and region specific. Interestingly, the most significant neuropathological changes were observed in those brain regions affected in the early stages of PD. Our data therefore demonstrate for the first time that a single, transvascular administration of α-synuclein pff can lead to selective regional neuropathology resembling the premotor stage of idiopathic PD. Furthermore, this novel delivery approach could also be used to deliver a range of other pathogenic, as well as therapeutic, protein cargos transvascularly to the brain.

Indexed as

Enteric Nervous SystemParkinson Diseasealpha-SynucleinAnimalsBrainHumansNeuronsalpha-Synuclein

Identifiers

PMID31758091
PMCPMC7850975

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.