<?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>S0188-49992017000200281</article-id>
<article-id pub-id-type="doi">10.20937/rica.2017.33.02.09</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[MICRONUCLEUS IN EXFOLIATED BUCCAL CELLS OF CHILDREN FROM DURANGO, MEXICO, EXPOSED TO ARSENIC THROUGH DRINKING WATER]]></article-title>
<article-title xml:lang="es"><![CDATA[MICRONÚCLEOS EN CÉLULAS DE EXFOLIADO BUCAL DE NIÑOS DE DURANGO, MÉXICO, EXPUESTOS A ARSÉNICO A TRAVÉS DEL AGUA DE CONSUMO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Guzmán]]></surname>
<given-names><![CDATA[Olga Dania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costilla Salazar]]></surname>
<given-names><![CDATA[Rogelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pelallo Martínez]]></surname>
<given-names><![CDATA[Nadia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alcaraz Contreras]]></surname>
<given-names><![CDATA[Yolanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bocanegra Salazar]]></surname>
<given-names><![CDATA[Melissa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha Amador]]></surname>
<given-names><![CDATA[Diana Olivia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Facultad de Ciencias Químicas ]]></institution>
<addr-line><![CDATA[Durango Durango]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guanajuato División de Ciencia de la Vida Departamento de Ciencias Ambientales]]></institution>
<addr-line><![CDATA[Irapuato Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad del Centro de México  ]]></institution>
<addr-line><![CDATA[San Luis Potosí San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Guanajuato División de Ciencias Naturales y Exactas Departamento de Farmacia]]></institution>
<addr-line><![CDATA[Guanajuato Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Facultad de Ciencias Forestales ]]></institution>
<addr-line><![CDATA[Durango Durango]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>33</volume>
<numero>2</numero>
<fpage>281</fpage>
<lpage>287</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992017000200281&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992017000200281&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992017000200281&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Exposure to inorganic arsenic (As) via drinking water in Latin America and Mexico is a growing public health concern that requires rapid methods to assess risk and adverse effects. The measurement of micronucleus frequency (MNf) in oral mucosa is a non-invasive and low-cost method for monitoring the genotoxic damage in exposed populations. Mexican children from Durango city, a zone with high water arsenic concentrations, were selected and assigned to three-risk categories (low, medium, high) based on the use of tap or bottled water. Levels of As in water, urine and MNf, were measured. Results indicate a significant correlation between the groups at risk and the frequency of MNf in children (0.9 ± 1.9 MN, 1.1 ± 1.9, and 2.6 ± 2.2 per 1000 buccal cells, respectively); (r = 0.416; p = 0.001). Which demonstrated that the MNf in oral mucosa is an efficient and low-cost technique for assessing and monitoring DNA damage by exposure to As. This study also provides evidence that the modification of risk factors could reduce health risk.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La exposición a arsénico (As) inorgánico a través del agua de bebida es un problema de salud pública en América Latina y en México que requiere métodos rápidos para evaluar riesgo y efectos adversos. La medición de la frecuencia de micronúcleos (MNf) en mucosa oral es un método no invasivo y de bajo costo para monitorear daño genotóxico en población expuesta a contaminantes ambientales. Para esta investigación, fueron seleccionados niños mexicanos de la ciudad de Durango, una zona con altas concentraciones de As en agua, y asignados en tres categorías de riesgo (baja, media y alta) con base en el uso de agua de la llave o agua embotellada. Se midieron los niveles de As en agua, orina y la MNf. Los resultados indican una correlación significativa entre los grupos de riesgo y la frecuencia de MNf en los niños (0.9 ± 1.9 MN, 1.1 ± 1.9, y 2.6 ± 2.2 por 1000 células bucales, respectivamente); (r = 0.416; p = 0.001). Estos resultados demuestran que la MNf en mucosa oral es una técnica eficiente y de bajo costo para evaluar y monitorear daño al ADN por la exposición a As. Este estudio también provee evidencia de que la modificación de factores de riesgo puede reducir riesgos a la salud.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[genotoxicity]]></kwd>
<kwd lng="en"><![CDATA[natural pollution]]></kwd>
<kwd lng="en"><![CDATA[vulnerable population]]></kwd>
<kwd lng="en"><![CDATA[environmental risk]]></kwd>
<kwd lng="es"><![CDATA[genotoxicidad]]></kwd>
<kwd lng="es"><![CDATA[contaminación natural]]></kwd>
<kwd lng="es"><![CDATA[población vulnerable]]></kwd>
<kwd lng="es"><![CDATA[riesgos ambientales]]></kwd>
</kwd-group>
</article-meta>
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