<?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>0864-0289</journal-id>
<journal-title><![CDATA[Revista Cubana de Hematología, Inmunología y Hemoterapia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Hematol Inmunol Hemoter]]></abbrev-journal-title>
<issn>0864-0289</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-02892021000400008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Anticuerpos irregulares en donantes de sangre]]></article-title>
<article-title xml:lang="en"><![CDATA[Irregular antibodies in blood donors]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Angarita Merchan]]></surname>
<given-names><![CDATA[Maritza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urbano Cáceres]]></surname>
<given-names><![CDATA[Eliana Ximena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cantor-Becerra]]></surname>
<given-names><![CDATA[Mariam Leidy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Boyacá  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>37</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-02892021000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-02892021000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-02892021000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: El sistema inmunológico puede reconocer una gran cantidad de antígenos cuando está expuesto a ellos. Los linfocitos B producen gran variedad de anticuerpos, con el fin de generar la especificidad de los receptores para el reconocimiento de dichos antígenos. La presencia de anticuerpos irregulares, es una de las causas de reacciones adversas transfusionales por incompatibilidad entre donante y receptor.  Objetivo: Describir la genética, estructura y función de los anticuerpos irregulares en los donantes de sangre.  Métodos:  Se llevó a cabo una revisión de la literatura, en idioma inglés y español, a través de bases de datos como Pubmed, ScienceDirect, NCBI, Redalyc y SciElo de artículos publicados en los últimos 10 años.  Análisis y síntesis de la información: El sistema inmunológico genera una gran diversidad de anticuerpos mediante el proceso de recombinación somática entre los segmentos Variables (V), de diversidad (D) y de unión (J) de la línea germinal de las inmunoglobulinas, como mecanismo de defensa del organismo frente a sustancias o antígenos extraños. Los anticuerpos irregulares son aquellos diferentes al sistema sanguíneo ABO y los más comúnmente encontrados en los donantes de sangre son anti-D, anti-E, anti-K y anti-M.  Conclusiones:  La importancia clínica de los anticuerpos irregulares en donantes se basa en su asociación con las reacciones hemolíticas, dada la capacidad que tienen los antígenos de algunos grupos sanguíneos para generar anticuerpos de tipo IgG que causan lisis prematura de los eritrocitos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: The immune system can recognize a large number of antigens when it is exposed to them; B Lymphocytes produces a great variety of antibodies, in order to generate the specificity of the receivers for the recognition of said antigens. The presence to irregular antibodies is one of the causes to the adverse reactions to the transfusion when for blood incompatibility between donor and receptor.  Objective:  To describe the genetics, structure and function of irregular antibodies in blood donors.  Methods:  A literature review was carried out, in English and Spanish, through databases such as Pubmed, ScienceDirect, NCBI, Redalyc and Scielo of articles published in the last 10 years.  Analysis and synthesis of information: The immune system generates a great diversity of antibodies through the somatic recombination process between the Variable (V), diversity (D) and joining (J) segments of the germ line of immunoglobulins, as a defense mechanism of the organism against foreign substances or antigens. Irregular antibodies are those other than the ABO blood system and those most commonly found in blood donors are anti-D, anti-E, anti-K, and anti-M.  Conclusions: The clinical significance of irregular antibodies in donors is based on their association with hemolytic reactions, due to the ability of antigens in some blood groups to generate IgG-type antibodies that cause premature erythrocyte lysis.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[anticuerpos]]></kwd>
<kwd lng="es"><![CDATA[donantes]]></kwd>
<kwd lng="es"><![CDATA[inmunoglobulinas]]></kwd>
<kwd lng="es"><![CDATA[sanguíneo]]></kwd>
<kwd lng="es"><![CDATA[transfusión]]></kwd>
<kwd lng="en"><![CDATA[antibodies]]></kwd>
<kwd lng="en"><![CDATA[donors]]></kwd>
<kwd lng="en"><![CDATA[immunoglobulins]]></kwd>
<kwd lng="en"><![CDATA[blood]]></kwd>
<kwd lng="en"><![CDATA[transfusion]]></kwd>
</kwd-group>
</article-meta>
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