<?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>1794-2470</journal-id>
<journal-title><![CDATA[Nova]]></journal-title>
<abbrev-journal-title><![CDATA[Nova]]></abbrev-journal-title>
<issn>1794-2470</issn>
<publisher>
<publisher-name><![CDATA[Universidad Colegio Mayor de Cundinamarca]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1794-24702020000100035</article-id>
<article-id pub-id-type="doi">10.22490/24629448.3698</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Detección de un mosaico de trisomía 21 en líquido amniótico]]></article-title>
<article-title xml:lang="en"><![CDATA[Detection of a mosaicism of trisomy 21 in amniotic liquid]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[María Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteaga]]></surname>
<given-names><![CDATA[María Ximena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernandez]]></surname>
<given-names><![CDATA[Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lechtig]]></surname>
<given-names><![CDATA[Sharon]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ciro]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maldonado]]></surname>
<given-names><![CDATA[Valentina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Celis]]></surname>
<given-names><![CDATA[Luis Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de La Sabana Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de La Sabana Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Policlínica Metropolitana Unidad de Genética Médica ]]></institution>
<addr-line><![CDATA[Caracas ]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de La Sabana Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de La Sabana Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad de La Sabana Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Universidad de La Sabana Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>18</volume>
<numero>33</numero>
<fpage>35</fpage>
<lpage>42</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S1794-24702020000100035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S1794-24702020000100035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S1794-24702020000100035&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se analizo&#769; un resultado con alteracio&#769;n cromoso&#769;mica tomado de una base de datos conformada por un total de 4755 muestras de li&#769;quido amnio&#769;tico extrai&#769;dos mediante amniocentesis con indicacio&#769;n de su me&#769;dico tratante, riesgo se&#769;rico y edad materna avanzada. En este reporte se presenta la detección de un mosaico de trisomía 21 en líquido amniótico, mediante la técnica de Banda G donde se analizaron 20 metafases. Los resultados obtenidos documentan una composición cromosómica 47, XY+21 y 46, XY con una relación 9:11 respecto a las metafases analizadas, confirmándose así el diagnóstico del Síndrome de Down secundario a mosaico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A result with chromosomal alteration was analyzed from a database consisting of a total of 4755 samples of amniotic fluid extracted by amniocentesis with indication of the attending physician, serum risk and advanced maternal age. This report presents the detection of a mosaicism of trisomy 21 in amniotic fluid, using G- Banding where 20 metaphases were analyzed. The results obtained document a chromosomal composition 47, XY + 21 and 46, XY with a 9:11 ratio with respect to the metaphases analyzed, confirming the diagnosis of Down syndrome secondary to mosaicism.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Síndrome de Down]]></kwd>
<kwd lng="es"><![CDATA[mosaicismo]]></kwd>
<kwd lng="es"><![CDATA[cariotipo anormal]]></kwd>
<kwd lng="es"><![CDATA[técnicas de cultivo celular]]></kwd>
<kwd lng="es"><![CDATA[diagnóstico prenatal]]></kwd>
<kwd lng="es"><![CDATA[asesoramiento genético]]></kwd>
<kwd lng="en"><![CDATA[Down's Syndrome]]></kwd>
<kwd lng="en"><![CDATA[Mosaicism]]></kwd>
<kwd lng="en"><![CDATA[Abnormal Karyotype]]></kwd>
<kwd lng="en"><![CDATA[Cell Culture Techniques]]></kwd>
<kwd lng="en"><![CDATA[Prenatal Diagnosis]]></kwd>
<kwd lng="en"><![CDATA[Genetic Counseling]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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