Evidence map›Paper›PMID 30410011›Full record

ArticleScientific reports2018

K-variant BCHE and pesticide exposure: Gene-environment interactions in a case-control study of Parkinson's disease in Egypt.

Thomas W Rösler, Mohamed Salama, Ali S Shalash, Eman M Khedr, Abdelhalim El-Tantawy, Gharib Fawi, Amal El-Motayam, Ehab El-Seidy, Mohamed El-Sherif, Mohamed El-Gamal and 8 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04062279 (Predictors of Parkinson's Disease Progression in Sample of Egyptian Patients; Clinical and Biochemical), which is not on this map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.4field-weighted citation impact, top 19% 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.

NCT04062279 unknown statusnot on this mapstarted 2019, after this paper: background citation

Predictors of Parkinson's Disease Progression in Sample of Egyptian Patients; Clinical and Biochemical

Typeobservational_patient_registrySponsorAin Shams UniversityRan2019 to 2024Enrolled100ConditionsParkinson Disease, Cognitive Dysfunction, BiomarkersArmsserum alpha synuclein autoantibodies, motor and non motor scales
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 30 citations in OpenAlex.

  1. Commentary: Pesticides andJournal of Parkinson's disease · 2026
    Article
  2. Review
  3. Environmental Risk Factors for Parkinson's Disease: A Critical Review and Policy Implications.Movement disorders : official journal of the Movement Disorder Society · 2025
    Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Organophosphorus pesticide exposure biomarkers in a Mexican population.Environmental science and pollution research international · 2021
    Article
  13. Review
  14. Observational
  15. Article
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

18 authors at 9 institutions in 2 countries.

Thomas W RöslerGerman Center for Neurodegenerative Diseases (DZNE), Munich, Germany.
Mohamed SalamaMedical Experimental Research Center (MERC), Mansoura University, Mansoura, Egypt.ORCID http://orcid.org/0000-0003-1644-0273
Ali S ShalashDepartment of Neurology, Ain Shams University, Cairo, Egypt.
Eman M KhedrDepartment of Neurology, Assiut University, Assiut, Egypt.
Abdelhalim El-TantawyDepartment of Neurology, Mansoura University, Mansoura, Egypt.
Gharib FawiDepartment of Neurology, Sohag University, Sohag, Egypt.
Amal El-MotayamDepartment of Neurology, Zagazig University, Zagazig, Egypt.
Ehab El-SeidyDepartment of Neurology, Tanta University, Tanta, Egypt.
Mohamed El-SherifDepartment of Neurology, Mansoura University, Mansoura, Egypt.
Mohamed El-GamalToxicology Department, Mansoura University, Mansoura, Egypt.
Mohamed MoharramToxicology Department, Mansoura University, Mansoura, Egypt.
Mohammad El-KattanToxicology Department, Mansoura University, Mansoura, Egypt.
Muhammad Abdel-NabyToxicology Department, Mansoura University, Mansoura, Egypt.
Samia AshourDepartment of Neurology, Ain Shams University, Cairo, Egypt.
Ulrich MüllerInstitute for Human Genetics, Justus Liebig University Giessen, Giessen, Germany.
Astrid DempfleInstitute of Medical Informatics and Statistics, Kiel University, Kiel, Germany.ORCID http://orcid.org/0000-0002-2618-3920
Gregor KuhlenbäumerDepartment of Neurology, Kiel University, Kiel, Germany.
Günter U HöglingerGerman Center for Neurodegenerative Diseases (DZNE), Munich, Germany. guenter.hoeglinger@dzne.de.ORCID http://orcid.org/0000-0001-7587-6187
Mansoura University · EGAin Shams University · EGChristian-Albrechts-Universität zu Kiel · DEGerman Center for Neurodegenerative Diseases · DEAssiut University · EGJustus-Liebig-Universität Gießen · DESohag University · EGTanta University · EGZagazig University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pesticide exposure is associated with increased risk of Parkinson's disease (PD). We investigated in Egypt whether common variants in genes involved in pesticide detoxification or transport might modify the risk of PD evoked by pesticide exposure. We recruited 416 PD patients and 445 controls. Information on environmental factors was collected by questionnaire-based structured interviews. Candidate single-nucleotide polymorphisms (SNPs) in 15 pesticide-related genes were genotyped. We analyzed the influence of environmental factors and SNPs as well as the interaction of pesticide exposure and SNPs on the risk of PD. The risk of PD was reduced by coffee consumption [OR = 0.63, 95% CI: 0.43-0.90, P = 0.013] and increased by pesticide exposure [OR = 7.09, 95% CI: 1.12-44.01, P = 0.036]. The SNP rs1126680 in the butyrylcholinesterase gene BCHE reduced the risk of PD irrespective of pesticide exposure [OR = 0.38, 95% CI: 0.20-0.70, P = 0.002]. The SNP rs1803274, defining K-variant BCHE, interacted significantly with pesticide exposure (P = 0.007) and increased the risk of PD only in pesticide-exposed individuals [OR = 2.49, 95% CI: 1.50-4.19, P = 0.0005]. The K-variant BCHE reduces serum activity of butyrylcholinesterase, a known bioscavenger for pesticides. Individuals with K-variant BCHE appear to have an increased risk for PD when exposed to pesticides.

Indexed as

Polymorphism, Single NucleotideAdultAgedButyrylcholinesteraseCase-Control StudiesEgyptEnvironmental ExposureFemaleGene-Environment InteractionGenetic Predisposition to DiseaseHumansMaleMiddle AgedParkinson DiseasePesticidesSurveys and QuestionnairesBCHE protein, humanButyrylcholinesterasePesticides

Identifiers

PMID30410011
PMCPMC6224461
OpenAlexW2899502742

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.