<?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>S0188-49992019000400831</article-id>
<article-id pub-id-type="doi">10.20937/rica.2019.35.04.05</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[INHIBICIÓN DE LA BUTIRILCOLINESTERASA EN EL GORRIÓN CASERO EXPUESTO A MALATIÓN]]></article-title>
<article-title xml:lang="en"><![CDATA[BUTYRYLCHOLINESTERASE INHIBITION IN THE HOUSE SPARROW EXPOSED TO MALATION]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bujdud León]]></surname>
<given-names><![CDATA[Aixa Najla]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pereda Solís]]></surname>
<given-names><![CDATA[Martín Emilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Guerrero]]></surname>
<given-names><![CDATA[José Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerrero Cervantes]]></surname>
<given-names><![CDATA[Maribel]]></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 Medicina Veterinaria y Zootecnia Programa Interinstitucional de Maestría en Ciencias Agropecuarias y Forestales]]></institution>
<addr-line><![CDATA[Durango Dgo.]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[Durango Dgo.]]></addr-line>
<country>México</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>4</numero>
<fpage>831</fpage>
<lpage>837</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992019000400831&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992019000400831&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992019000400831&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se estimó el efecto del malatión (insecticida organofosforado) en individuos de gorrión casero (Passer domesticus) capturados en una zona agrícola del municipio de Durango, México. La butirilcolinesterasa se inhibe con los insecticidas organofosforados, por ello mediante espectrofotometría se determinó su actividad previa y posterior al consumo de alimento tratado con malatión en 19 organismos. Los resultados muestran una disminución de la actividad BChE (11.58 %) posterior al tratamiento (p = 0.03). Se exploró la posible relación entre el peso de las aves y la actividad BChE antes y después de la exposición al insecticida organofosforado pero no se encontró correlación entre estas dos variables (Pearson, r = 0.114), por lo que se decidió no utilizar la variable peso como covariable en los análisis para comparar la actividad enzimática de las aves. El peso de las aves disminuyó en promedio 1.54 g posterior a la exposición, posiblemente debido al estrés de captura y la falta de adaptación al cautiverio. Es posible que el gorrión casero y otras aves que cohabitan en las zonas agrícolas donde se aplica malatión, así como otros insecticidas organofosforados, sean propensos a desarrollar diferentes niveles de intoxicación y que en algunos casos se comprometa su estado de salud.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The effect of malathion (organophosphate insecticide) on individuals of the house sparrow (Passer domesticus) caught in an agricultural area of the municipality of Durango, Mexico, was estimated. Butyrylcholinesterase is inhibited by organophosphorus insecticides, therefore, its previous and subsequent activity to the consumption of food treated with malathion was determined in 19 organisms by spectrophotometry. The results show a decrease in BChE activity (11.58 %) after treatment (p = 0.03). The possible relationship between the weight of the birds and BChE activity before and after exposure to the organophosphorus insecticide was explored but no correlation was found between these two variables (Pearson, r = 0.114), so it was decided not to use the variable weight as a covariate in the analyses to compare the enzymatic activity of the birds. The weight of the birds decreased on average 1.54 g after the exposure, possibly due to the stress of capture and the lack of adaptation to captivity. It is possible that the house sparrow and other birds that co-inhabit the agricultural areas where malathion is applied, as well as other organophosphorus insecticides, are prone to develop different levels of intoxication and that in some cases their health condition is compromised.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[toxicidad]]></kwd>
<kwd lng="es"><![CDATA[plaguicida]]></kwd>
<kwd lng="es"><![CDATA[organofosforados]]></kwd>
<kwd lng="es"><![CDATA[acetilcolina]]></kwd>
<kwd lng="es"><![CDATA[Passer domesticus]]></kwd>
<kwd lng="en"><![CDATA[toxicity]]></kwd>
<kwd lng="en"><![CDATA[pesticide]]></kwd>
<kwd lng="en"><![CDATA[organophosphorus]]></kwd>
<kwd lng="en"><![CDATA[acetylcholine]]></kwd>
<kwd lng="en"><![CDATA[Passer domesticus]]></kwd>
</kwd-group>
</article-meta>
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