<?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>1812-9528</journal-id>
<journal-title><![CDATA[Memorias del Instituto de Investigaciones en Ciencias de la Salud]]></journal-title>
<abbrev-journal-title><![CDATA[Mem. Inst. Investig. Cienc. Salud]]></abbrev-journal-title>
<issn>1812-9528</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Investigaciones en Ciencias de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1812-95282017000300027</article-id>
<article-id pub-id-type="doi">10.18004/mem.iics/1812-9528/2017.015(03)27-034</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización del perfil antigénico de extractos proteicos solubles de cepas de Trypanosoma cruzi]]></article-title>
<article-title xml:lang="en"><![CDATA[Antigenic profile characterization of soluble protein extracts from two Trypanosoma cruzi strains]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Pavetti]]></surname>
<given-names><![CDATA[Ana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Infanzón]]></surname>
<given-names><![CDATA[Belén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aria]]></surname>
<given-names><![CDATA[Laura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[Liz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meza]]></surname>
<given-names><![CDATA[Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Guillen]]></surname>
<given-names><![CDATA[Ivalena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acosta de Hetter]]></surname>
<given-names><![CDATA[María Eugenia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Facultad de Ciencias Químicas, Universidad Nacional de Asunción  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Asunción Instituto de Investigaciones en Ciencias de la Salud Departamento de Producción]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>15</volume>
<numero>3</numero>
<fpage>27</fpage>
<lpage>34</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S1812-95282017000300027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S1812-95282017000300027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S1812-95282017000300027&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El parásito Trypanosoma cruzi es el agente causal de la enfermedad de Chagas. El mismo presenta una amplia diversidad biológica y genética, por lo cual se lo agrupa en 6 unidades taxonómicas discretas. Las cepas Y, CL Brener y una aislada en Paraguay aún no caracterizada en su totalidad fueron empleadas en este estudio con el fin de determinar sus perfiles proteico y antigénico para aportar en la investigación sobre esta enfermedad en nuestro país, aplicando técnicas como SDS-PAGE, ELISA y Western blot. Se observaron semejanzas en los perfiles proteicos de los extractos solubles de Y Lote 73 e Y Lote 74, siendo ambos obtenidos a partir de la misma cepa, así como perfil diferente de éstos con los de CL Brener y Py. Se detectaron bandas de proteínas de pesos moleculares comunes entre extractos, principalmente las consideradas de bajo peso molecular. Se constató la capacidad antigénica al ensayar los 4 extractos frente a sueros chagásicos, no chagásicos, controles positivos y negativos, se evidenció la importancia de confirmar el diagnóstico con pruebas de principios diferentes. Además, se detectaron proteínas antigénicas comunes a los 3 extractos empleados en el Western blot, las que podrían ser estudiadas con mayor profundidad debido a su potencial antigénico, característica de interés para fines diagnósticos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The parasite Trypanosoma cruzi is the causal agent of Chagas disease.It presents a wide biological and genetic diversity, therefore it is grouped into 6 taxonomic units..The strains Y, CL Brener and one strain isolated in Paraguaywere used in this study in order to determine their protein and antigenic profiles, applying techniques such as SDS-PAGE, ELISA and Western blot. Similarities were observed in the protein prifles of the soluble extracts of Lot 73 Y and Lot 74 Y both obtained from the same strain, and the different profile of these with those of CL Brener and Py strains. Protein bands of common molecular weights, manly those consideredlow, were detected between extracts. By testing the four extracts against chagasic and non-chagasic sera, positive and negative controls, the antigenic capacity was verified and the importance of utilizing different test to confirm diagnosis was shown. In addition antigenic proteins common to the three extracts used in the Western blot were detected and can be further investigated due to their antigenic potential, an interesting characteristic for diagnostic purpose.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Trypanosomacruzi]]></kwd>
<kwd lng="es"><![CDATA[western blot]]></kwd>
<kwd lng="es"><![CDATA[enfermedad de Chagas.]]></kwd>
<kwd lng="en"><![CDATA[Trypanosoma cruzi]]></kwd>
<kwd lng="en"><![CDATA[western blot]]></kwd>
<kwd lng="en"><![CDATA[Chagas disease]]></kwd>
</kwd-group>
</article-meta>
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