<?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>0120-4157</journal-id>
<journal-title><![CDATA[Biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Biomédica]]></abbrev-journal-title>
<issn>0120-4157</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-41572018000300320</article-id>
<article-id pub-id-type="doi">10.7705/biomedica.v38i3.4014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Polimorfismos de los genes JAG1, MEF2C y BDNF asociados con la densidad mineral ósea en mujeres del norte de México]]></article-title>
<article-title xml:lang="en"><![CDATA[JAG1, MEF2C and BDNF polymorphisms associated with bone mineral density in women from Northern México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Peña]]></surname>
<given-names><![CDATA[Sandra Marlen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos-Góngora]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila-Rodríguez]]></surname>
<given-names><![CDATA[Hilda Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-López]]></surname>
<given-names><![CDATA[Erik]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Cruz]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Salas]]></surname>
<given-names><![CDATA[Zacarías]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Centro de Investigación en Nutrición y Salud Pública ]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Medicina Genómica Laboratorio de Genómica del Metabolismo Óseo ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<volume>38</volume>
<numero>3</numero>
<fpage>320</fpage>
<lpage>328</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-41572018000300320&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-41572018000300320&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-41572018000300320&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción. La osteoporosis se caracteriza por una baja densidad mineral ósea; la composición genética es uno de los factores que más influyen en ella, pero hay pocos estudios de genes asociados con esta condición en la población mexicana.  Objetivo. Investigar la posible asociación de ocho polimorfismos de un solo nucleótido (Single Nucleotide Polymorphism, SNP) de los genes JAG1, MEF2C y BDNF con la densidad mineral ósea en mujeres del norte de México.  Materiales y métodos. Participaron 124 mujeres de 40 a 80 años, sin parentesco entre ellas. Su densidad mineral ósea se determinó mediante absorciometría dual de rayos X y la genotipificación se hizo utilizando discriminación alélica mediante PCR en tiempo real; se estudiaron cuatro de los SNP del gen JAG1 (rs6514116, rs2273061, rs2235811 y rs6040061), tres del MEF2C (rs1366594, rs12521522 y rs11951031) y uno del BDNF (rs6265). El análisis estadístico de los datos obtenidos se hizo por regresión lineal.  Resultados. El SNP rs2235811 presentó asociación significativa con la densidad mineral ósea de todo el cuerpo bajo el modelo de herencia dominante (p=0,024) y, aunque los otros SNP no tuvieron relación significativa con esta densidad, en ninguno de los modelos de herencia estudiados, se observó una tendencia hacia esta asociación.  Conclusión. Los resultados sugieren que el SNP rs2235811 del gen JAG1 podría contribuir a la variación en la densidad mineral ósea de las mujeres del norte de México.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Osteoporosis is characterized by a low bone mineral density. Genetic composition is one of the most influential factors in determining bone mineral density (BMD). There are few studies on genes associated with BMD in the Mexican population.  Objective: To investigate the association of eight single nucleotide polymorphisms (SNP) of JAG1, MEF2C and BDNF genes with BMD in women of Northern México.  Materials and methods: This study involved 124 unrelated Mexican women between 40 and 80 years old. BMD was determined by dual X-ray absorptiometry. Genotyping was performed using allelic discrimination by real time PCR. We analyzed the SNP of JAG1 (rs6514116, rs2273061, rs2235811 and rs6040061), MEF2C (rs1366594, rs12521522 and rs11951031), and BDNF (rs6265) and the data using linear regression.  Results: The JAG1 SNP rs2235811 was associated with the BMD of the total body under the dominant inheritance model (p=0,024). Although the other SNPs were not associated with BMD in any of the inheritance models studied, a trend was observed.  Conclusion: Our results suggest that the SNP rs2235811 in the JAG1 gene might contribute to the variation in BMD in women from northern México.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[densidad mineral ósea]]></kwd>
<kwd lng="es"><![CDATA[osteoporosis]]></kwd>
<kwd lng="es"><![CDATA[polimorfismo genético]]></kwd>
<kwd lng="es"><![CDATA[mujeres]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[Bone mineral density]]></kwd>
<kwd lng="en"><![CDATA[osteoporosis]]></kwd>
<kwd lng="en"><![CDATA[polymorphism, genetic]]></kwd>
<kwd lng="en"><![CDATA[women]]></kwd>
<kwd lng="en"><![CDATA[México]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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