Evidence map›Paper›PMID 30584168›Full record

ReviewJournal of Parkinson's disease2018

The Search for Environmental Causes of Parkinson's Disease: Moving Forward.

Honglei Chen, Beate Ritz

Registry-linked trialOpen access · hybridAbstract readReview
In one paragraph

Review in Journal of Parkinson's disease, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05759403 (Comparative Study Between Parkinson's Disease and Parkinson Dementia Complex), which is not on this map. Cited by 64 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 1 pooled it
7.0field-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.

NCT05759403 unknown statusnot on this mapstarted 2022, after this paper: background citation

Comparative Study Between Parkinson's Disease and Parkinson Dementia Complex : Genetics, Clinical, Neurophysiological

TypeobservationalSponsorAssiut UniversityRan2022 to 2023Enrolled40ConditionsParkinson Disease Dementia, Parkinson DiseaseArmsCortical excitability using transcranial magnetic stimulation
3 · Its place in the literature

Who cites it

64 citing papers in PubMed, 1 synthesis or guideline pooled it, 106 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. A PLAN to address the Parkinson pandemic.Journal of Parkinson's disease · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Viruses · 2024
    Review
  13. Article
  14. Parkinson's Disease is Predominantly a Genetic Disease.Journal of Parkinson's disease · 2024
    Review
  15. Article
  16. Review
  17. Low-dose inhalation exposure to trichloroethylene induces dopaminergic neurodegeneration in rodents.Toxicological sciences : an official journal of the Society of Toxicology · 2023
    Article
  18. Article
  19. Article
  20. The role of exosomes in pathogenesis and the therapeutic efficacy of mesenchymal stem cell-derived exosomes against Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Review

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

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

2 authors at 2 institutions in 1 country.

Honglei ChenDepartment of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, MI, USA.
Beate RitzDepartment of Epidemiology and Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA.
Michigan State University · USUniversity of California, Los Angeles · US

Funding

Translational Research Support CoreP30ES007048 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ROB S MCCONNELL · 1996 to 2026
$46.4M
UCLA CENTER FOR THE STUDY OF PARKINSON'S DISEASEP50NS038367 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CHESSELET, MARIE-FRANCOISE S · 1999 to 2011
$15.3M
Center for Gene-Environment Studies in Parkinson DiseaseU54ES012078 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CHESSELET, MARIE-FRANCOISE S · 2002 to 2006
$7.1M
Project 4: Pesticides and Genes In PD: Studies In HumansP01ES016732 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2008 to 2012
$6.7M
PARKINSON'S DISEASES SUSCEPTIBILITY GENES AND PESTICIDESR01ES010544 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2000 to 2015
$5.7M
Registry Study of Parkinsons Disease in DenmarkR01ES013717 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2006 to 2010
$4.5M
Environmental exposure, DNA methylation, and Parkinson's diseaseR21ES024356 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HORVATH, STEVE, RITZ, BEATE R. · 2014 to 2015
$424k
Air Pollution and Parkinson's in the Danish PASIDA StudyR21ES022391 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2013 to 2014
$380k
NIEHS NIH HHS P01 ES016732NIEHS NIH HHS P30 ES007048NIEHS NIH HHS R01 ES010544NIEHS NIH HHS R01 ES013717NIEHS NIH HHS R21 ES022391NIEHS NIH HHS R21 ES024356NIEHS NIH HHS U54 ES012078NINDS NIH HHS P50 NS038367
6 · The paper itself

Abstract

It is widely believed that environmental exposures contribute to the vast majority of late-onset sporadic Parkinson's disease (PD), alone or via interactions with genetic factors. The search for environmental causes of PD has however been hampered by lack of understanding the prodromal phase of PD development and the difficulties in exposure assessment during this prolonged period. On the other hand, the existence of this prodromal period, along with an increasingly better understanding of PD prodromal symptoms, provides an exciting opportunity to identify environmental factors that initiate PD pathogenesis and/or modify its progression. For prevention efforts, this prodromal stage is of a major interest. Targeting factors that enter the body via the nose or gut has become even more important since the discovery of α-synuclein aggregates in the enteric and olfactory nervous systems. In this paper, we speculate about novel research hypotheses and approaches that may help us better define the role of environment in PD etiology, especially during its extended and complex prodromal phase.

Indexed as

Disease ProgressionEnvironmental ExposureHumansParkinson DiseaseProdromal SymptomsRisk Factorsenvironmental risk factorsetiologyParkinson’s diseaseprodromal symptomsprogression

Identifiers

PMID30584168
PMCPMC6311360
OpenAlexW2904498227

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.