<?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>1729-519X</journal-id>
<journal-title><![CDATA[Revista Habanera de Ciencias Médicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev haban cienc méd]]></abbrev-journal-title>
<issn>1729-519X</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de la Habana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1729-519X2021000500005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Anticuerpos contra el citoplasma del neutrófilo y actividad clínica en pacientes cubanos con artritis reumatoide]]></article-title>
<article-title xml:lang="en"><![CDATA[Antineutrophil cytoplasmic autoantibodies and clinical activity in Cuban patients with rheumatoid arthritis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Téllez]]></surname>
<given-names><![CDATA[Goitybell]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres Rives]]></surname>
<given-names><![CDATA[Barbara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Rodríguez]]></surname>
<given-names><![CDATA[Vicky]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Nacional de Genética Médica  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<volume>20</volume>
<numero>5</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1729-519X2021000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1729-519X2021000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1729-519X2021000500005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  Los anticuerpos contra el citoplasma del neutrófilo se detectan normalmente en pacientes con vasculitis. Aunque estos anticuerpos pueden estar presentes en un amplio número de enfermedades asociadas a estados inflamatorios y autoinmunes, como la artritis reumatoide, no se ha demostrado su significado clínico.  Objetivo:  evaluar la utilidad de diferentes especificidades antigénicas de los anticuerpos contra el citoplasma del neutrófilo para medir la actividad clínica en pacientes cubanos con artritis reumatoide.  Material y Métodos:  Se realizó un estudio transversal con 77 pacientes cubanos con artritis reumatoide. Se determinaron la velocidad de sedimentación globular, la proteína C reactiva, el indicador clínico de actividad de la enfermedad, los anticuerpos anti-proteínas citrulinadas, el factor reumatoide y los anticuerpos contra el citoplasma del neutrófilo frente a diferentes especificidades antigénicas.  Resultados: La mayor cantidad de pacientes con actividad clínica elevada (&gt; 5,1) pertenecieron al grupo de pacientes positivos de anticuerpos contra el citoplasma del neutrófilo (p=0,0364). Los pacientes con anticuerpos anti-lactoferrina tuvieron mayores valores de actividad clínica (p=0,0304). Mediante análisis multivariado se demostró la influencia de la positividad de anticuerpos anti-lisozima (p=0,0391), de la positividad doble de los anticuerpos anti-proteínas citrulinadas y anti-lactoferrina (p=0,0282), así como de la doble positividad de los anticuerpos anti-proteínas citrulinadas y anti-elastina (p=0,0182) en la actividad clínica.  Conclusión:  La presencia de anticuerpos contra el citoplasma del neutrófilo que reconocen las especificidades antigénicas lisozima, lactoferrina y elastina se relacionan con mayor actividad clínica en pacientes con artritis reumatoide.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Antibodies against neutrophil cytoplasm are normally detected in patients with vasculitis. Although these antibodies can be present in a wide number of diseases associated with inflammatory and autoimmune conditions such as rheumatoid arthritis, their clinical significance has not been demonstrated.  Objective:  To evaluate the usefulness of different antigenic specificities of antibodies against neutrophil cytoplasm to measure the clinical activity in Cuban patients with rheumatoid arthritis.  Material and Methods: A cross-sectional study was conducted on 77 Cuban patients with rheumatoid arthritis. Erythrocyte sedimentation rate, C-reactive protein, the clinical indicator of disease activity, anti-citrullinated protein antibodies, rheumatoid factor, and antibodies against neutrophil cytoplasm against different specificities were determined.  Results: The largest number of patients with elevated disease activity (&gt; 5.1) belonged to the group of antibodies against neutrophil cytoplasm positive patients (p=0.0364). Patients with anti-lactoferrin antibodies had higher disease activity values &#8203;&#8203;(p=0.0304). Through multivariate analysis, the influence of positive anti-lysozyme antibodies (p=0.0391), of double positivity of anti-citrullinated protein and anti-lactoferrin antibodies (p=0.0282), as well as that of double positivity of anti-citrullinated protein and anti-elastin antibodies (p=0.0182) on disease activity were demonstrated.  Conclusion:  The antibodies against neutrophil cytoplasm that recognize the antigenic specificities of lysozyme, lactoferrin and elastin are related to higher clinical activity in patients with rheumatoid arthritis.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[anticuerpos contra el citoplasma del neutrófilo]]></kwd>
<kwd lng="es"><![CDATA[artritis reumatoide]]></kwd>
<kwd lng="es"><![CDATA[actividad clínica]]></kwd>
<kwd lng="en"><![CDATA[Antibodies against neutrophil cytoplasm]]></kwd>
<kwd lng="en"><![CDATA[rheumatoid arthritis]]></kwd>
<kwd lng="en"><![CDATA[clinical activity]]></kwd>
</kwd-group>
</article-meta>
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