Evidence map›Paper›PMID 26457621›Full record

ArticleEnvironmental research2015

Genetic variability in ABCB1, occupational pesticide exposure, and Parkinson's disease.

Shilpa Narayan, Janet S Sinsheimer, Kimberly C Paul, Zeyan Liew, Myles Cockburn, Jeff M Bronstein, Beate Ritz

Open access · greenAbstract read
In one paragraph

Article in Environmental research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
2.4field-weighted citation impact, top 10% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Dual-Risk axis:Journal of Parkinson's disease · 2026
    Article
  5. Environmental Risk Factors for Parkinson's Disease: A Critical Review and Policy Implications.Movement disorders : official journal of the Movement Disorder Society · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Genetics ofCancers · 2023
    Review
  11. Article
  12. Review
  13. Preventing Parkinson's Disease: An Environmental Agenda.Journal of Parkinson's disease · 2022
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Transporters as Drug Targets in Neurological Diseases.Clinical pharmacology and therapeutics · 2016
    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

7 authors at 2 institutions in 1 country.

Shilpa NarayanDepartment of Epidemiology, Fielding School of Public Health, UCLA, Los Angeles, CA, USA.
Janet S SinsheimerDepartments of Human Genetics and Biomathematics, David Geffen School of Medicine, and Department of Biostatistics, Fielding School of Public Health, UCLA, Los Angeles, CA, USA.
Kimberly C PaulDepartment of Epidemiology, Fielding School of Public Health, UCLA, Los Angeles, CA, USA.
Zeyan LiewDepartment of Epidemiology, Fielding School of Public Health, UCLA, Los Angeles, CA, USA.
Myles CockburnDepartment of Preventative Medicine, University of Southern California (USC) Keck School of Medicine and Department of Geography, USC, Los Angeles, CA, USA.
Jeff M BronsteinDepartment of Neurology, School of Medicine, UCLA, Los Angeles, CA, USA.
Beate RitzDepartment of Epidemiology, Fielding School of Public Health, UCLA, Los Angeles, CA, USA; Department of Neurology, School of Medicine, UCLA, Los Angeles, CA, USA. Electronic address: britz@ucla.edu.
University of California, Los Angeles · USUniversity of Southern California · US

Funding

STATISTICAL METHODS FOR GENE MAPPINGR01GM053275 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LANGE, KENNETH L · 1995 to 2019
$9.3M
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 CHESSELET, MARIE-FRANCOISE S · 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
NIEHS NIH HHS P01 ES016732NIEHS NIH HHS P01ES016732NIEHS NIH HHS R01 ES010544NIEHS NIH HHS R01 ES10544NIEHS NIH HHS U54 ES012078NIGMS NIH HHS GM053275NIGMS NIH HHS R01 GM053275
6 · The paper itself

Abstract

backgroundStudies suggested that variants in the ABCB1 gene encoding P-glycoprotein, a xenobiotic transporter, may increase susceptibility to pesticide exposures linked to Parkinson's Disease (PD) risk.

objectivesTo investigate the joint impact of two ABCB1 polymorphisms and pesticide exposures on PD risk.

methodsIn a population-based case control study, we genotyped ABCB1 gene variants at rs1045642 (c.3435C/T) and rs2032582 (c.2677G/T/A) and assessed occupational exposures to organochlorine (OC) and organophosphorus (OP) pesticides based on self-reported occupational use and record-based ambient workplace exposures for 282 PD cases and 514 controls of European ancestry. We identified active ingredients in self-reported occupational use pesticides from a California database and estimated ambient workplace exposures between 1974 and 1999 employing a geographic information system together with records for state pesticide and land use. With unconditional logistic regression, we estimated marginal and joint contributions for occupational pesticide exposures and ABCB1 variants in PD.

resultsFor occupationally exposed carriers of homozygous ABCB1 variant genotypes, we estimated odds ratios of 1.89 [95% confidence interval (CI): (0.87, 4.07)] to 3.71 [95% CI: (1.96, 7.02)], with the highest odds ratios estimated for occupationally exposed carriers of homozygous ABCB1 variant genotypes at both SNPs; but we found no multiplicative scale interactions.

conclusionsThis study lends support to a previous report that commonly used pesticides, specifically OCs and OPs, and variant ABCB1 genotypes at two polymorphic sites jointly increase risk of PD.

Indexed as

Genetic VariationAdultAgedAged, 80 and overATP Binding Cassette Transporter, Subfamily BCaliforniaCase-Control StudiesData Interpretation, StatisticalFemaleGeographic Information SystemsHumansMaleMiddle AgedOccupational ExposureParkinson DiseasePesticidesABCB1 protein, humanATP Binding Cassette Transporter, Subfamily BPesticidesEpidemiologyMultidrug resistance protein 1 gene (ABCB1)Parkinson’s diseasePesticideP-glycoprotein

Identifiers

PMID26457621
PMCPMC4911423
OpenAlexW1792032506

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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.