<?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>0120-8705</journal-id>
<journal-title><![CDATA[CES Medicina]]></journal-title>
<abbrev-journal-title><![CDATA[CES Med.]]></abbrev-journal-title>
<issn>0120-8705</issn>
<publisher>
<publisher-name><![CDATA[Universidad CES]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-87052017000200127</article-id>
<article-id pub-id-type="doi">10.21615/cesmedicina.31.2.1</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[17-hydroxyprogesterone levels in blood from the heels of healthy full-term newborns]]></article-title>
<article-title xml:lang="es"><![CDATA[Niveles de 17 - hidroxiprogesterona en sangre de talón de neonatos a término sanos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mora-Bautista]]></surname>
<given-names><![CDATA[Victor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Paredes]]></surname>
<given-names><![CDATA[Jhon Freddy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calderón-Rojas]]></surname>
<given-names><![CDATA[Alba Luz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Tarazona]]></surname>
<given-names><![CDATA[Carlos Augusto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinzón-Mantilla]]></surname>
<given-names><![CDATA[Katherine]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mantilla-Mora]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-Martínez]]></surname>
<given-names><![CDATA[Luis Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-García]]></surname>
<given-names><![CDATA[Gustavo Adolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Rojas]]></surname>
<given-names><![CDATA[Victor Clemente]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</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>31</volume>
<numero>2</numero>
<fpage>127</fpage>
<lpage>135</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-87052017000200127&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-87052017000200127&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-87052017000200127&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Background and aim: Congenital adrenal hyperplasia is caused by enzymatic abnormalities in the synthesis of adrenal steroids. A pilot study was carried out to measure the values of 17- hydroxyprogesterone (17-OHP) in a sample of healthy full-term newborns; the present study aims to determine if birth weight or gender have differences on 17-OHP. Design: Transversal, descriptive, and prolective study. Methods: We included 81 healthy full-term newborns with normal prenatal controls born between July 18th, 2014, and August 1st, 2015. We took whole blood from heel pricks when the babies were three to five days old. Socioeconomic and clinical data were collected. Non-extracted 17-OHP ELISA was used. Its cut-off point was 20 ng/ml. If results were above cut-off point, babies were recalled for a new measure since transient high 17-hydroxyprogesterone levels are possible until babies are three months of age. Results: Gestational age varied between 37.0 to 41.5 weeks. Non-extracted 17-OHP levels ranged between 2.6 to 29.5 ng/mL (median: 11.5, IQR 7.2 to 15.1). 17-OHP levels variation per birth weight or gender were not found. Conclusions: Expected lesser variation in term newborns may explain these results. Quality issues should be solved before starting a screening program in our population because socioeconomic issues cause most problems in recalling positive screening babies.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Justificación: la hiperplasia adrenal congénita es una enfermedad autosómica recesiva ocasionada por anormalidades enzimáticas en la síntesis de los esteroides adrenales. Se realizó un estudio para medir los valores de 17- hidroxiprogesterona en una muestra de neonatos a término sanos. El objetivo fue conocer si existían diferencias en el valor de 17-OHP según edad gestacional y sexo. Diseño: estudio transversal, descriptivo y prolectivo. Métodos: se incluyeron 81 neonatos con controles prenatales normales y nacidos entre julio 18 de 2014 y agosto 1 de 2015. Se obtuvieron muestras de sangre del talón cuando los bebés tenían entre tres a cinco días de vida. Se recolectaron datos socioeconómicos y clínicos. Se utilizó un ELISA de 17-OHP no extraída. El punto de corte de la prueba de ELISA de 17-OHP fue 20 ng/mL. Si los resultados estaban por encima del valor de corte, se citaron los bebés para una nueva medición, dado que es posible hallar una hiper 17-hidroxiprogesteronemia hasta los tres meses de edad. Resultados: la edad gestacional varió entre 37 a 41,2 semanas. Los valores de 17-OHP no extraída variaron entre 2,6 a 29,5 ng/mL (mediana 11,5 y RIQ 7,2 - 15,1). Los niveles de 17-OHP no variaron según peso al nacer o sexo. Conclusión: estos resultados se podrían explicar por una menor variación esperada en neonatos a término. Se deben resolver algunos problemas de calidad antes de poder empezar un programa de tamizaje en nuestra población, debido a que causas socioeconómicas generaron dificultad al reevaluar los niños con resultados positivos de tamizaje.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[17-hydroxyprogesterone]]></kwd>
<kwd lng="en"><![CDATA[Congenital adrenal hyperplasia]]></kwd>
<kwd lng="en"><![CDATA[Screening]]></kwd>
<kwd lng="en"><![CDATA[Newborn infant]]></kwd>
<kwd lng="en"><![CDATA[Gestational age]]></kwd>
<kwd lng="es"><![CDATA[17-hidroxiprogesterona]]></kwd>
<kwd lng="es"><![CDATA[hiperplasia adrenal congénita]]></kwd>
<kwd lng="es"><![CDATA[tamizaje]]></kwd>
<kwd lng="es"><![CDATA[neonato]]></kwd>
<kwd lng="es"><![CDATA[edad gestacional]]></kwd>
</kwd-group>
</article-meta>
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