Evidence map›Paper›PMID 34954321›Full record

ReviewNeurobiology of disease2022

Environmental triggers of Parkinson's disease - Implications of the Braak and dual-hit hypotheses.

Honglei Chen, Keran Wang, Filip Scheperjans, Bryan Killinger

Abstract readReview
In one paragraph

Review in Neurobiology of disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–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. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Microorganisms · 2024
    Review
  11. Review
  12. Low-dose inhalation exposure to trichloroethylene induces dopaminergic neurodegeneration in rodents.Toxicological sciences : an official journal of the Society of Toxicology · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. A Mouse Model to Test Novel Therapeutics for Parkinson's Disease: an Update on the Thy1-aSyn ("line 61") Mice.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  19. Review
  20. 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

4 authors.

Honglei ChenEpidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA. Electronic address: chenho19@msu.edu.
Keran WangEpidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA.
Filip ScheperjansDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Haartmaninkatu 4, 00290 Helsinki, Finland.
Bryan KillingerGraduate College, Rush University Medical Center, Chicago, IL 60612, USA.

Funding

Pesticides, Olfaction, and Neurodegeneration Among US FarmersR01ES029227 · NIEHS · MICHIGAN STATE UNIVERSITY · PI CHEN, HONGLEI · 2019 to 2023
$5.0M
NIEHS NIH HHS R01 ES029227
6 · The paper itself

Abstract

Idiopathic Parkinson's disease (PD) may take decades to develop, during which many risk or protective factors may come into play to initiate the pathogenesis or modify its progression to clinical PD. The lack of understanding of this prodromal phase of PD and the factors involved has been a major hurdle in the study of PD etiology and preventive strategies. Although still controversial, the Braak and dual-hit hypotheses that PD may start peripherally in the olfactory structures and/or the gut provides a theoretical platform to identify the triggers and modifiers of PD prodromal development and progression. This is particularly true for the search of environmental causes of PD as the olfactory structures and gut are the major human mucosal interfaces with the environment. In this review, we lay out our personal views about how the Braak and dual-hit hypotheses may help us search for the environmental triggers and modifiers for PD, summarize available experimental and epidemiological evidence, and discuss research gaps and strategies.

Indexed as

Environmental ExposureAnimalsBrainGastrointestinal MicrobiomeHumansParkinson DiseaseRisk FactorsEnvironmental risk factorsGut-brain axisMicrobiotaOlfactory impairmentParkinson's disease

Identifiers

PMID34954321
PMCPMC9525101

What OpenQuestion holds

Textmetadata
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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.