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Assessment of DNA damage in Brazilian workers occupationally exposed to pesticides: a study from Central Brazil

We evaluated 41 rural workers occupationally exposed to pesticides and 32 subjects as a control group, using the micronucleus (MN) and the comet assay. For the comet assay, we evaluated the peripheral blood, and for the MN, we sampled cells from the oral epithelium. Damage to DNA was measured by tai...

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Published in:Environmental science and pollution research international 2013-10, Vol.20 (10), p.7334-7340
Main Authors: Khayat, Carolinne Borges, Costa, Emília Oliveira Alves, Gonçalves, Macks Wendhell, da Cruz e Cunha, Damiana Mirian, da Cruz, Alex Silva, de Araújo Melo, Caroline Oliveira, Bastos, Rogério Pereira, da Cruz, Aparecido Divino, de Melo e Silva, Daniela
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cited_by cdi_FETCH-LOGICAL-c446t-f850bfbda018173cca583e312453d4443da6a55a23db4c6d348160dd997a02993
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container_title Environmental science and pollution research international
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creator Khayat, Carolinne Borges
Costa, Emília Oliveira Alves
Gonçalves, Macks Wendhell
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da Cruz, Alex Silva
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Bastos, Rogério Pereira
da Cruz, Aparecido Divino
de Melo e Silva, Daniela
description We evaluated 41 rural workers occupationally exposed to pesticides and 32 subjects as a control group, using the micronucleus (MN) and the comet assay. For the comet assay, we evaluated the peripheral blood, and for the MN, we sampled cells from the oral epithelium. Damage to DNA was measured by tail length, % DNA in tail (% tail), olive tail moment (OTM), and tail moment (TM). The exposed group presented an 8× increase in MN frequency, when compared to the control group ( p
doi_str_mv 10.1007/s11356-013-1747-1
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For the comet assay, we evaluated the peripheral blood, and for the MN, we sampled cells from the oral epithelium. Damage to DNA was measured by tail length, % DNA in tail (% tail), olive tail moment (OTM), and tail moment (TM). The exposed group presented an 8× increase in MN frequency, when compared to the control group ( p &lt;0.05). When we contrasted the MN frequencies between the individuals that use and do not use personal protective equipment, we found a mean of 7.5 MN (57 % variance) and 12.1 MN (130 % variance), respectively. The binucleated cells were 0.04 and 0.005, in the exposed and control groups, respectively, indicating 8× increase in the number of binucleated cells, when comparing the groups ( p &lt;0.05). In the comet assay, we demonstrated statistically significant differences in three parameters (% DNA, OTM, and TM) indicating that the rural workers presented high levels of genomic damages. 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Our results indicate that occupational exposure to pesticides could cause genome damage in somatic cells, representing a potential health risk to Brazilian rural workers that deal constantly with agrochemicals without adequate personal protection equipment.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>23640389</pmid><doi>10.1007/s11356-013-1747-1</doi><tpages>7</tpages></addata></record>
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ispartof Environmental science and pollution research international, 2013-10, Vol.20 (10), p.7334-7340
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source ABI/INFORM Collection; Springer Nature
subjects Adult
Agriculture
Agrochemicals
Air Pollutants, Occupational - metabolism
Air Pollutants, Occupational - toxicity
Alcohol
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Bioassays
Brazil
Comet Assay
Deoxyribonucleic acid
DNA
DNA Damage
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Epithelium
Farmworkers
Female
Genomes
Health risks
Human exposure
Humans
Male
Micronucleus Tests
Middle Aged
Occupational exposure
Occupational Exposure - analysis
Occupational Exposure - statistics & numerical data
Olea
Peripheral blood
Personal protective equipment
Pesticides
Pesticides - metabolism
Pesticides - toxicity
Protective equipment
Research Article
Somatic cells
Statistical analysis
Studies
Waste Water Technology
Water Management
Water Pollution Control
title Assessment of DNA damage in Brazilian workers occupationally exposed to pesticides: a study from Central Brazil
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