Evidence map›Paper›PMID 32426240›Full record

ArticleToxicology reports2020

Organochlorine pesticide levels in Greek patients with Parkinson's disease.

Efthimios Dardiotis, Athina-Maria Aloizou, Evagelos Sakalakis, Vasileios Siokas, Michalis Koureas, Georgia Xiromerisiou, Efthymia Petinaki, Martin Wilks, Aristidis Tsatsakis, Christos Hadjichristodoulou and 2 more

Open access · goldAbstract read
In one paragraph

Article in Toxicology reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
6.0field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. A PLAN to address the Parkinson pandemic.Journal of Parkinson's disease · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. Environmental Risk Factors for Parkinson's Disease: A Critical Review and Policy Implications.Movement disorders : official journal of the Movement Disorder Society · 2025
    Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Impact of Pesticides on Human Health in the Last Six Years in Brazil.International journal of environmental research and public health · 2022
    Review
  14. Preventing Parkinson's Disease: An Environmental Agenda.Journal of Parkinson's disease · 2022
    Review
  15. Article
  16. Article
  17. Journal of clinical medicine · 2021
    Article
  18. Article
  19. Article
  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

12 authors at 6 institutions in 3 countries.

Efthimios DardiotisDepartment of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, Larissa, Greece.
Athina-Maria AloizouDepartment of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, Larissa, Greece.
Evagelos SakalakisDepartment of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, Larissa, Greece.
Vasileios SiokasDepartment of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, Larissa, Greece.
Michalis KoureasDepartment of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222, Larissa, Greece.
Georgia XiromerisiouDepartment of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, Larissa, Greece.
Efthymia PetinakiDepartment of Microbiology, Medical School, University of Thessaly, Larissa, Greece.
Martin WilksSwiss Centre for Applied Human Toxicology, University of Basel, CH‑4055, Basel, Switzerland.
Aristidis TsatsakisCenter of Toxicology Science & Research, Medical School, University of Crete, 71003, Heraklion, Crete, Greece.
Christos HadjichristodoulouDepartment of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222, Larissa, Greece.
Leonidas Stefanis1stDepartment of Neurology, National and Kapodistrian University of Athens, School of Medicine, Eginition Hospital, 72-74 Vas.Sophias Ave, 11528, Athens, Greece.
Georgios M HadjigeorgiouDepartment of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, Larissa, Greece.
University of Thessaly · GRUniversity Hospital of Larissa · GRNational and Kapodistrian University of Athens · GRUniversity of Basel · CHUniversity of Crete · GRUniversity of Cyprus · CY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundParkinson's disease (PD) is a neurodegenerative disease, mostly presenting with characteristic motor symptoms. Organochlorines (OC) are a class of widely-used pesticides that have been included among the list of environmental factors incriminated in PD pathogenesis. However, most studies reporting this association are based on questionnaires, and few have reported exposure data.

aimTo examine the relationship between OC blood concentrations and PD risk.

methodsIn the present study, we studied the concentrations of 8 OC compounds (hexachlorobenzene, heptachlor, hepachlor epoxide, c-chlordane, a-chlordane, p,p'-DDE, DDD, DDT) in 104 Greek PD patients and 110 healthy controls.

resultsAll substances studied were present in at least one sample. The most frequently detected (above the level of quantification) pesticides were p,p'-DDE (n = 214, 100 % of both groups) and hexachlorobenzene, HCB (n = 189, cases 46.5 %, controls 53.5 %). Higher levels of DDE were detected among PD patients in comparison to controls by using logistic regression analysis to control for confounders [Odds Ratio, OR (95 % confidence interval, C.I.)]: 2.592,(1.29-5.21)], whilst lower levels of HCB were detect among PD patients [OR,95 %CI:0.176(0.09-0.35)].

conclusionsOur data suggest that exposure to specific OCs is related to the risk of PD. Further studies, using real exposure data, are needed in order to confirm and extend these findings.

Indexed as

AD, Alzheimer’s diseaseEnvironmental factorsOC, organochlorinesorganochlorinesParkinson’s diseasePDPD, Parkinson’s disease

Identifiers

PMID32426240
PMCPMC7225589
OpenAlexW3015398758

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.