Evidence map›Paper›PMID 27503075›Full record

ArticleThe Journal of experimental medicine2016

Widespread transneuronal propagation of α-synucleinopathy triggered in olfactory bulb mimics prodromal Parkinson's disease.

Nolwen L Rey, Jennifer A Steiner, Nazia Maroof, Kelvin C Luk, Zachary Madaj, John Q Trojanowski, Virginia M-Y Lee, Patrik Brundin

Abstract read
In one paragraph

Article in The Journal of experimental medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 235 papers.

0numbers the graph read from it
0cells of the map it votes in
235citing papers in PubMed
31.2field-weighted citation impact, top 1% 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

235 citing papers in PubMed, 396 citations in OpenAlex.

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  12. Perampanel Blocks Transsynaptic α-Synuclein Propagation and Neurodegeneration in a Mouse Model of Lewy Body Disease.Movement disorders : official journal of the Movement Disorder Society · 2026
    Article
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  14. Liquid-liquid phase separation in neural development.Cellular and molecular life sciences : CMLS · 2026
    Review
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  16. Article
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  18. Glucosylceramides trigger the shedding of alpha-synuclein laden ectosomes.Extracellular vesicles and circulating nucleic acids · 2026
    Article
  19. Review
  20. Article

175 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Nolwen L ReyCenter for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI 49503 Nolwen.Rey@vai.org.
Jennifer A SteinerCenter for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI 49503.ORCID 0000-0003-0953-1310
Nazia MaroofCenter for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI 49503 Roche Pharma Research & Early Development, Neuroscience Discovery, Roche Innovation Center, 4070 Basel, Switzerland.ORCID 0000-0002-9611-041X
Kelvin C LukDepartment of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, PA 19104.ORCID 0000-0002-6591-6269
Zachary MadajBioinformatics and Biostatistics Core, Van Andel Research Institute, Grand Rapids, MI 49503.ORCID 0000-0003-2330-0500
John Q TrojanowskiDepartment of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, PA 19104.ORCID 0000-0002-9239-8794
Virginia M-Y LeeDepartment of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, University of Pennsylvania, Philadelphia, PA 19104.
Patrik BrundinCenter for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI 49503.ORCID 0000-0003-2924-5186
Van Andel Institute · USInstitute on Aging · USRoche (Switzerland) · CH

Funding

Transgenic Mouse Models of Tau PathologiesP01AG017586 · NIA · UNIVERSITY OF PENNSYLVANIA · PI LEE, VIRGINIA M · 2000 to 2021
$37.3M
Project IV: "Alpha-Synuclein Strains & Diverse Synucleinopathies"P50NS053488 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI TROJANOWSKI, JOHN Q. · 2007 to 2017
$20.9M
TDP-43 Proteinopathies in ALS-DementiaP01AG032953 · NIA · UNIVERSITY OF PENNSYLVANIA · PI LEE, VIRGINIA M · 2010 to 2014
$5.8M
Alzhelmer's Disease Drug Development ProgramU01AG029213 · NIA · UNIVERSITY OF PENNSYLVANIA · PI SMITH, AMOS B · 2008 to 2012
$3.1M
NIA NIH HHS P01 AG017586NIA NIH HHS P01 AG032953NIA NIH HHS U01 AG029213NINDS NIH HHS P50 NS053488
6 · The paper itself

Abstract

Parkinson's disease (PD) is characterized by the progressive appearance of intraneuronal Lewy aggregates, which are primarily composed of misfolded α-synuclein (α-syn). The aggregates are believed to propagate via neural pathways following a stereotypical pattern, starting in the olfactory bulb (OB) and gut. We hypothesized that injection of fibrillar α-syn into the OB of wild-type mice would recreate the sequential progression of Lewy-like pathology, while triggering olfactory deficits. We demonstrate that injected α-syn fibrils recruit endogenous α-syn into pathological aggregates that spread transneuronally over several months, initially in the olfactory network and later in distant brain regions. The seeded inclusions contain posttranslationally modified α-syn that is Thioflavin S positive, indicative of amyloid fibrils. The spreading α-syn pathology induces progressive and specific olfactory deficits. Thus, we demonstrate that propagating α-syn pathology triggered in the OB is functionally detrimental. Collectively, we have created a mouse model of prodromal PD.

Indexed as

alpha-SynucleinAnimalsDisease Models, AnimalDisease ProgressionFemaleLewy BodiesMiceMice, Inbred C57BLNeural PathwaysOlfactory BulbOlfactory TubercleParkinson DiseaseProtein Aggregation, Pathologicalalpha-Synuclein

Identifiers

PMID27503075
PMCPMC4995088
OpenAlexW2507685477

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

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.