<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992019000200271</article-id>
<article-id pub-id-type="doi">10.20937/rica.2019.35.02.01</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[DAÑO GENÉTICO Y CITOTÓXICO PROVOCADO POR PLAGUICIDAS EN JORNALEROS QUE LABORAN EN INVERNADEROS EN ATLIXCO, PUEBLA, MÉXICO]]></article-title>
<article-title xml:lang="en"><![CDATA[Genetic and cytotoxic damage induced by pesticides in greenhouse workers in Atlixco, Puebla, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega-Martínez]]></surname>
<given-names><![CDATA[Luis Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Armendáriz]]></surname>
<given-names><![CDATA[Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Waliszewski]]></surname>
<given-names><![CDATA[Stefan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Arroyo]]></surname>
<given-names><![CDATA[Sandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baños-Lara]]></surname>
<given-names><![CDATA[María del Rocío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Terán-Cervantes]]></surname>
<given-names><![CDATA[Marisol]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Carranza]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Valenzuela]]></surname>
<given-names><![CDATA[María del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Popular Autónoma del Estado de Puebla Departamento de Ciencias Biológicas ]]></institution>
<addr-line><![CDATA[Puebla Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Veracruzana Centro de Investigaciones Biomédicas ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Centro de Ciencias de la Atmósfera ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Popular Autónoma del Estado de Puebla Centro de Investigación Oncológica Una Nueva Esperanza ]]></institution>
<addr-line><![CDATA[Puebla Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma de Occidente Unidad de Investigación en Ambiente y Salud ]]></institution>
<addr-line><![CDATA[Los Mochis Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<numero>2</numero>
<fpage>271</fpage>
<lpage>279</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992019000200271&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992019000200271&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992019000200271&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El monitoreo del daño genotóxico en jornaleros de invernaderos permite identificar el deterioro del ADN originado por las condiciones laborales. Se ha sugerido el empleo de diferentes marcadores biológicos para evaluar el riesgo de exposición ocupacional y el daño al ADN, uno de los cuales es el ensayo de micronúcleos (MN). El objetivo del estudio fue determinar la frecuencia de MN y anormalidades nucleares en frotis epiteliales de mucosa bucal de 40 jornaleros de invernaderos de alta y baja tecnología, expuestos a distintas clases de plaguicidas, y en 40 personas no expuestas a estos compuestos. Ambas poblaciones residen en la ciudad de Atlixco, Puebla, México. Las muestras tomadas se secaron al aire y se fijaron con metanol-ácido acético, después se tiñeron mediante la reacción de Feulgen. Se evaluaron las anormalidades nucleares contando mil células basales diferenciadas por participante. La comparación de frecuencias de los biomarcadores indicó mayor valor estadísticamente significativo de anormalidades nucleares en jornaleros de invernaderos, cuyas relaciones de índice de frecuencia fueron: 63.0 células binucleadas, 14.2 células con cromatina condensada, 8.0 células cariolíticas, 3.8 células picnóticas, 2.4 células con brotes nucleares y 2.3 células con micronúcleos. La frecuencia mayor de anormalidades nucleares se determinó en jornaleros que laboran en invernaderos de baja tecnología en comparación con los invernaderos de alta tecnología. La población masculina de invernaderos de baja tecnología mostró mayores frecuencias de células picnóticas, con micronúcleos y con brotes nucleares.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The monitoring of genotoxic damage in laborers of greenhouses allows the identification of deterioration of DNA originated by working conditions. It has been suggested the use of different biological markers to evaluate the risk of occupational exposure and DNA damage, one of them is the micronucleus (MN) assay. The objective of the study was to determine the frequency of MN and nuclear abnormalities in the buccal mucosa epithelium of 40 workers of high and low technology greenhouses, who are exposed to diferent kinds of pesticides, and of 40 people not exposed to these compounds, both populations from Atlixco City, in Puebla, Mexico. The samples taken were air-dried and fixed with methanol-acetic acid. Later they were stained by the Feulgen reaction. Nuclear abnormalities were assessed by counting one thousand differentiated basal cells per participant. Comparison of biomarkers frequencies indicates higher values of nuclear abnormalities statistically significant in laborers of greenhouses, whose frequency index ratios were: 63.0 binucleate cells, 14.2 cells with condensed chromatin, 8.0 cariolitic cells, 3.8 cells pycnotic, 2.4 cells with nuclear outbreaks, and 2.3 cells with micronuclei. The highest frequency of nuclear abnormalities was determined in laborers working in low-tech greenhouses compared to high-tech greenhouses. The male population of low-tech greenhouses showed higher frequencies of pycnotic cells, micronuclei, and cells with nuclear outbreaks.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[exposición ocupacional]]></kwd>
<kwd lng="es"><![CDATA[anormalidades nucleares]]></kwd>
<kwd lng="es"><![CDATA[frecuencias de micronúcleos]]></kwd>
<kwd lng="en"><![CDATA[occupational exposition]]></kwd>
<kwd lng="en"><![CDATA[nuclear abnormalities]]></kwd>
<kwd lng="en"><![CDATA[micronuclei frequency]]></kwd>
</kwd-group>
</article-meta>
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