<?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>0864-0300</journal-id>
<journal-title><![CDATA[Revista Cubana de Investigaciones Biomédicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Invest Bioméd]]></abbrev-journal-title>
<issn>0864-0300</issn>
<publisher>
<publisher-name><![CDATA[ECIMED]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-03002020000400015</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores moleculares implicados en insuficiencia cardiaca]]></article-title>
<article-title xml:lang="en"><![CDATA[Molecular factors involved in heart failure]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Ordoñez]]></surname>
<given-names><![CDATA[Jesús Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Domínguez]]></surname>
<given-names><![CDATA[José Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Medicina y Homeopatía ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación y Estudios Avanzados Departamento de Infectómica y Patogénesis Molecular]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>39</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03002020000400015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03002020000400015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03002020000400015&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La insuficiencia cardiaca se define como un síndrome caracterizado por la incapacidad de proveer las necesidades metabólicas del organismo, presentando disnea y fatiga. Hasta ahora, se ha descrito la participación de varias moléculas involucradas en los mecanismos de señalización intracelular que conducen a la insuficiencia cardiaca y estimulan la síntesis de algunas proteínas, como colágeno, la cual induce a una hipertrofia cardiaca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Heart failure is defined as a syndrome characterized by the inability to meet the metabolic needs of the organism, causing dyspnea and fatigue.Descriptions are available of the involvement of several molecules in cell signaling mechanisms which lead to heart failure and prompt the synthesis of some proteins, such as collagen, inducing cardiac hypertrophy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[insuficiencia]]></kwd>
<kwd lng="es"><![CDATA[señalización]]></kwd>
<kwd lng="es"><![CDATA[hipertrofia]]></kwd>
<kwd lng="en"><![CDATA[failure]]></kwd>
<kwd lng="en"><![CDATA[signaling]]></kwd>
<kwd lng="en"><![CDATA[hypertrophy]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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