Evidence map›Paper›PMID 36044566›Full record

ArticleScience advances2022

Neuronal hyperactivity-induced oxidant stress promotes in vivo α-synuclein brain spreading.

Michael Helwig, Ayse Ulusoy, Angela Rollar, Sinead A O'Sullivan, Shirley S L Lee, Helia Aboutalebi, Rita Pinto-Costa, Benjamin Jevans, Michael Klinkenberg, Donato A Di Monte

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.9field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
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  4. Selective peroxynitrite-mediated protein nitration catalyzed by glyoxalase domain containing protein 4.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  13. The 'α-synucleinopathy syndicate': multiple system atrophy and Parkinson's disease.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
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  15. Positron Emission Tomography with [International journal of molecular sciences · 2024
    Article
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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

10 authors at 1 institution in 2 countries.

Michael HelwigGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0001-6371-7082
Ayse UlusoyGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0003-2840-3429
Angela RollarGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.
Sinead A O'SullivanGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0003-1909-0803
Shirley S L LeeGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0002-5349-8450
Helia AboutalebiGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.
Rita Pinto-CostaGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0002-4920-4739
Benjamin JevansGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0002-2885-9912
Michael KlinkenbergGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0002-0241-4712
Donato A Di MonteGerman Center for Neurodegenerative Diseases (DZNE), Bonn 53127, Germany.ORCID 0000-0002-8296-836X
German Center for Neurodegenerative Diseases · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Interneuronal transfer and brain spreading of pathogenic proteins are features of neurodegenerative diseases. Pathophysiological conditions and mechanisms affecting this spreading remain poorly understood. This study investigated the relationship between neuronal activity and interneuronal transfer of α-synuclein, a Parkinson-associated protein, and elucidated mechanisms underlying this relationship. In a mouse model of α-synuclein brain spreading, hyperactivity augmented and hypoactivity attenuated protein transfer. Important features of neuronal hyperactivity reported here were an exacerbation of oxidative and nitrative reactions, pronounced accumulation of nitrated α-synuclein, and increased protein aggregation. Data also pointed to mitochondria as key targets and likely sources of reactive oxygen and nitrogen species within hyperactive neurons. Rescue experiments designed to counteract the increased burden of reactive oxygen species reversed hyperactivity-induced α-synuclein nitration, aggregation, and interneuronal transfer, providing first evidence of a causal link between these pathological effects of neuronal stimulation and indicating a mechanistic role of oxidant stress in hyperactivity-induced α-synuclein spreading.

Indexed as

alpha-SynucleinParkinson DiseaseAnimalsBrainMiceNeuronsOxidantsalpha-SynucleinOxidants

Identifiers

PMID36044566
PMCPMC9432848
OpenAlexW4293783041

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.