Evidence map›Paper›PMID 28880741›Full record

ArticleJournal of toxicology and environmental health. Part A2017

The impact of repeated organophosphorus pesticide exposure on biomarkers and neurobehavioral outcomes among adolescent pesticide applicators.

Ahmed A Ismail, Kai Wang, James R Olson, Matthew R Bonner, Olfat Hendy, Gaafar Abdel Rasoul, Diane S Rohlman

Abstract read
In one paragraph

Article in Journal of toxicology and environmental health. Part A, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

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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.

Ahmed A Ismaila Department of Occupational and Environmental Health , College of Public Health, University of Iowa , Iowa City , IA , USA.ORCID 0000-0002-6337-2341
Kai Wangc Department of Biostatistics , College of Public Health, University of Iowa , Iowa City , IA , USA.
James R Olsond Department of Epidemiology and Environmental Health , State University of New York , Buffalo , NY , USA.
Matthew R Bonnerd Department of Epidemiology and Environmental Health , State University of New York , Buffalo , NY , USA.
Olfat Hendyf Department of Clinical Pathology , National Liver Institute, Menoufia University , Shebin El-Kom , Egypt.
Gaafar Abdel Rasoulb Community Medicine and Public Health Department, Faculty of Medicine , Menoufia University , Shebin El-Kom , Egypt.
Diane S Rohlmana Department of Occupational and Environmental Health , College of Public Health, University of Iowa , Iowa City , IA , USA.

Funding

Pulmonary Toxicology Facility CoreP30ES005605 · NIEHS · UNIVERSITY OF IOWA · PI Jong Sung Kim · 1990 to 2026
$40.5M
Great Plains Center for Agricultural Health (GPCAH)U54OH007548 · OH · UNIVERSITY OF IOWA · PI FETHKE, NATHAN B · 2011 to 2025
$24.6M
Vulnerability of the Adolescent Brain to Organophosphorus PesticidesR01ES022163 · NIEHS · UNIVERSITY OF IOWA · PI ROHLMAN, DIANE S · 2013 to 2018
$2.7M
Assessing Vulnerability of the Adolescent Brain to Organophosphorus PesticidesR21ES017223 · NIEHS · OREGON HEALTH & SCIENCE UNIVERSITY · PI ROHLMAN, DIANE S · 2009 to 2010
$286k
NIEHS NIH HHS P30 ES005605NIEHS NIH HHS R01 ES022163NIEHS NIH HHS R21 ES017223NIOSH CDC HHS U54 OH007548
6 · The paper itself

Abstract

Egyptian adolescents are hired as seasonal workers to apply pesticides to the cotton crop and may perform this occupation for several years. However, few studies examined the effects of repeated pesticide exposure on health outcomes The goal of this study was to determine the impact of repeated pesticide exposure on neurobehavioral (NB) performance and biomarkers of exposure (urinary metabolite) and effect (cholinesterase activity). Eighty-four adolescents from two field stations in Menoufia, Egypt, were examined four times: before and during pesticide application season in 2010 and again before and during application season in 2011. At each of the four time points, participants completed a questionnaire, performed an NB test battery, and were assessed for urinary levels of the chlorpyrifos metabolite TCPy (3,5,6-trichloro-2-pyridinol) and blood cholinesterase activity. Following the study cohort over two consecutive pesticide application seasons revealed that TCPy levels significantly increased following exposure, and returned to baseline levels following the end of the application season. Blood butyryl cholinesterase activity exhibited a similar pattern. Although NB outcomes displayed learning and practice effects over time, deficits in performance were significantly associated with increased TCPy levels with reduction in the number of NB measures showing improvement over time. Biomarkers of exposure and effect demonstrated changes associated with pesticide application and recovery after application ended. Deficits in NB performance were correlated with elevated pesticide exposure. Data demonstrated that repeated pesticide exposure may exert a long-term adverse impact on human health.

Indexed as

Occupational ExposureAdolescentBiomarkersChildChlorpyrifosCholinesterasesEgyptHumansInsecticidesLongitudinal StudiesNeuropsychological TestsPyridonesYoung Adult3,5,6-trichloro-2-pyridinolBiomarkersChlorpyrifosCholinesterasesInsecticidesPyridones

Identifiers

PMID28880741
PMCPMC5648326

What OpenQuestion holds

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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.