Evidence map›Paper›PMID 33067503›Full record

ArticleScientific reports2020

Risk of genotoxic damage in schoolchildren exposed to organochloride pesticides.

Gerardo Alfonso Anguiano-Vega, Linette Hazel Cazares-Ramirez, Jaime Rendon-Von Osten, Alma Patricia Santillan-Sidon, Celia Gloria Vazquez-Boucard

Abstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

5 authors.

Gerardo Alfonso Anguiano-VegaMolecular Biomedicine Laboratory, Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Mexico.
Linette Hazel Cazares-RamirezMolecular Biomedicine Laboratory, Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Mexico.
Jaime Rendon-Von OstenLaboratory of Identification of Persistent Organic Pollutants, EPOMEX, Universidad Autónoma de Campeche, Campeche, Mexico.
Alma Patricia Santillan-SidonMolecular Biomedicine Laboratory, Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Mexico.
Celia Gloria Vazquez-BoucardProteomic and Genetic Toxicology Laboratory, Centro de Investigaciones Biológicas del Noroeste, Calle IPN 195, Playa Palo de Santa Rita Sur, 23096, La Paz, BCS, Mexico. cboucard04@cibnor.mx.ORCID 0000-0002-3784-7358

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study identified and determined organochloride pesticide (OCs) concentrations in hair samples from children at two elementary schools: one exposed to fumigations in agricultural fields, the other unexposed. Three concentrations of OCs levels in the hair were compared (high, medium, low), and total nuclear abnormalities in buccal cells were determined: micronuclei (MNi), condensed chromatin, karyorrhexis, pyknosis, binucleate cells, karyolysis, lobed nuclei, and apoptosis. No significant differences were found for the presence of MNi between the schoolchildren from the exposed and unexposed schools, but the prevalence of OCs in both schools was over 50%, as well as the frequencies of MNi in the children were over 58%. Findings show a significant difference between the frequency of MNi in the total sample of schoolchildren (exposed school + unexposed school) in relation to the concentration of OCs detected in their hair. The children from exposed school that showed the higher concentrations of OCs in hair had higher levels of genotoxic damage in the buccal cells; compared against children with lower concentrations of OCs. The most frequent nuclear abnormalities in the exposed children were lobed nuclei (79.4%), binucleate cells (66.66%), apoptosis (65.07), and MNi (58.7%). We determined the prevalence ratio (PR) and prevalence odds ratio (POR) for the presence of MNi in buccal cells in relation to the OCs concentrations in the hair samples. Both ratios were high for MNi [PR 3.93, 95% confidence interval (CI) 1.97-7.84, p = 0.0003; and POR 7.97, 95% CI 2.62-24.28, p = 0.0003], indicating a 7.97 times greater risk that the exposed children will present > 0.2% of MNi when OCs concentrations exceed 0.447 μg/g. These indicators may be useful biomarkers of genotoxic damage in children exposed to persistent, highly-toxic compounds. Results suggest the potential risk to which those schoolchildren are exposed on a daily basis due to fumigations in nearby agricultural fields.

Indexed as

Cell DeathCell NucleusChildChromatography, GasDNA DamageEnvironmental ExposureFemaleHairHumansHydrocarbons, ChlorinatedMaleMicronuclei, Chromosome-DefectiveMicronucleus TestsMouth MucosaPesticidesHydrocarbons, ChlorinatedPesticides

Identifiers

PMID33067503
PMCPMC7567889

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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.