<?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>0034-7744</journal-id>
<journal-title><![CDATA[Revista de Biología Tropical]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. biol. trop]]></abbrev-journal-title>
<issn>0034-7744</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-77442015000600297</article-id>
<article-id pub-id-type="doi">10.15517/rbt.v63i2.23164</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Histological analysis after arm tip amputation in the brittle star Ophioplocus januarii (Echinodermata: Ophiuroidea)]]></article-title>
<article-title xml:lang="es"><![CDATA[Análisis histológico luego de la amputación de las puntas de los brazos en Ophioplocus januarii (Echinodermata: Ophiuroidea)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Giorgio]]></surname>
<given-names><![CDATA[Gisele Di]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rubilar]]></surname>
<given-names><![CDATA[Tamara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Brogger]]></surname>
<given-names><![CDATA[Martín I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,CONICET Laboratorio de Parasitología ]]></institution>
<addr-line><![CDATA[Puerto Madryn Chubut]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,CONICET LAPEMAR ]]></institution>
<addr-line><![CDATA[Puerto Madryn Chubut]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,CONICET Laboratorio de Ecosistemas Costeros ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2015</year>
</pub-date>
<volume>63</volume>
<fpage>297</fpage>
<lpage>308</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0034-77442015000600297&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0034-77442015000600297&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0034-77442015000600297&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Wound healing in the arm tip after amputation in the brittle star Ophioplocus januarii was examined in San José gulf, Argentina, to observe histological and morphological changes. The process of wound healing is described and compared with other brittle stars species. This process in O. januarii involves the closure of the wound, the repair of the tissue damage and posterior formation of a presumptive stalked blastema by undifferentiated cells, sclerocytes and presumptive blastemic cells. The sclerocytes are the most abundant cell type due to this cells are crucial to the future skeleton regeneration. The results found in this study support the results found in others brittle stars Rev. Biol. Trop. 63 (Suppl. 2): 297-308. Epub 2015 June 01.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se examinaron los cambios histológicos y morfológicos producidos en la punta del brazo de la ofiura Ophioplocus januarii luego de su amputación. En el presente trabajo se describe el proceso de cicatrización de la herida y se lo compara con otras especies de la misma Clase. Este proceso en O. januarii involucra el cierre de la herida, la reparación del tejido dañado y la posterior formación de un presunto blastema formado por células indiferenciadas, esclerocitos y presuntas células blastémicas. Los esclerocitos son las células más abundantes debido a que estas células son cruciales para la regeneración del esqueleto. Los resultados encontrados en este estudio apoyan los resultados que se encuentran en otras estrellas frágiles.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[brittle star]]></kwd>
<kwd lng="en"><![CDATA[echinoderm]]></kwd>
<kwd lng="en"><![CDATA[histological analysis]]></kwd>
<kwd lng="en"><![CDATA[regeneration]]></kwd>
<kwd lng="en"><![CDATA[sclerocytes]]></kwd>
<kwd lng="es"><![CDATA[estrella frágil]]></kwd>
<kwd lng="es"><![CDATA[equinodermo]]></kwd>
<kwd lng="es"><![CDATA[análisis histológico]]></kwd>
<kwd lng="es"><![CDATA[regeneración]]></kwd>
<kwd lng="es"><![CDATA[esclerocitos]]></kwd>
</kwd-group>
</article-meta>
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