<?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>1025-028X</journal-id>
<journal-title><![CDATA[Vaccimonitor]]></journal-title>
<abbrev-journal-title><![CDATA[Vaccimonitor]]></abbrev-journal-title>
<issn>1025-028X</issn>
<publisher>
<publisher-name><![CDATA[Finlay Ediciones]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1025-028X2004000200002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de la toxicidad por dosis única y tolerancia local de la vacuna vax-SPIRAL® en ratas Sprague Dawley]]></article-title>
<article-title xml:lang="en"><![CDATA[Single dose toxicity and local tolerance evaluation of the vax-SPIRAL® vaccine in Sprague Dawley rats]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Infante]]></surname>
<given-names><![CDATA[Juan F]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sifontes]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarez]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[Martha]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[Viviana]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa]]></surname>
<given-names><![CDATA[Eligio]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fariñas]]></surname>
<given-names><![CDATA[Mildrey]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Núñez]]></surname>
<given-names><![CDATA[Juan F.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[Tamara]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Vismark]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Finlay  ]]></institution>
<addr-line><![CDATA[Ciudad de La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2004</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2004</year>
</pub-date>
<volume>13</volume>
<numero>2</numero>
<fpage>11</fpage>
<lpage>16</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1025-028X2004000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1025-028X2004000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1025-028X2004000200002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Las pruebas preclínicas de toxicidad en dosis única y en dosis repetidas brindan una valiosa información sobre la seguridad del producto, al incluir el estudio macroscópico e histopatológico de órganos importantes, así como evaluaciones de las vías de administración y el régimen de dosificación. Cuba desarrolló una vacuna polivalente de células inactivadas químicamente adyuvadas con hidróxido de aluminio, vax-SPIRAL®. Esta vacuna presenta ventajas en relación con otras vacunas como la procedente de la antigua URSS. El esquema de vacunación para humanos consiste en dos dosis de 0,5 mL, separadas por un intervalo óptimo de seis semanas. El objetivo de este estudio de toxicidad en ratas Sprague Dawley fue determinar la toxicidad potencial, letalidad, órganos y sistemas susceptibles y otros eventos adversos, así como la toxicidad en el sitio de inoculación después de la administración de una dosis de la vacuna en estudio. Los resultados indicaron que, bajo las condiciones en estudio y según los criterios establecidos para evaluar los datos obtenidos, la vacuna antileptospirósica trivalente no produce efectos tóxicos en el modelo animal usado. Las únicas alteraciones encontradas fueron formaciones granulomatosas a nivel del sitio de inoculación. Estas formaciones han sido reportadas como pertenecientes al adyuvante de depósito (hidróxido de aluminio), también usado en otras vacunas de aplicación parenteral.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The pre-clinical toxicity tests in single dose and repeated doses give valuable information on the safety of the product, since they include the pathological and histopathological study of important organs, as well as the evaluation of the administration route and the dosage regime. At present, Cuba is Developing a polyvalent vaccine (vax-SPIRAL®) from chemically inactivated cells, with an aluminium hydroxide adjuvant. This vaccine has advantages vis a vis other vaccines, as for example, the vaccine from the former Soviet Union. The vaccination schedule for humans consists in two doses of 0.5 mL, separated by an optimal interval of six weeks. The objective of this toxicity study in Sprague Dawley rats was to determine the potential toxicity, lethality, susceptible organs and other adverse events, as well as toxicity in the inoculation site after administering one dose of the vaccine under study. The results indicated that, under the conditions of the study and according to the established criteria for evaluating the data obtained, the antileptospirosic trivalent vaccine dose did not produce toxic effects in the animal model used. The only alterations found were granuloma formations at the inoculation site. These formations have been reported as belonging to the deposit adjuvant (aluminum hydroxide), also used in the other parenteral vaccines.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Dosis única]]></kwd>
<kwd lng="es"><![CDATA[Leptospirosis,]]></kwd>
<kwd lng="es"><![CDATA[Rata]]></kwd>
<kwd lng="es"><![CDATA[Toxicología]]></kwd>
<kwd lng="es"><![CDATA[Vacuna]]></kwd>
<kwd lng="es"><![CDATA[vax-SPIRAL®]]></kwd>
<kwd lng="en"><![CDATA[Leptospirosis]]></kwd>
<kwd lng="en"><![CDATA[Rat]]></kwd>
<kwd lng="en"><![CDATA[Single Dose]]></kwd>
<kwd lng="en"><![CDATA[Toxicology]]></kwd>
<kwd lng="en"><![CDATA[Vaccine,]]></kwd>
<kwd lng="en"><![CDATA[vax-SPIRAL]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font size="2" face="Verdana"><strong>ARTICULOS ORIGINALES</strong></font></p>     <p align="right">&nbsp;</p>     <p align="right"><font size="2" face="Verdana"><strong><font size="4">Evaluaci&oacute;n de la toxicidad por dosis &uacute;nica y tolerancia   local de la vacuna vax-SPIRAL&reg; en ratas Sprague Dawley.</font><br /> </strong></font></p>     <p align="right">&nbsp;</p>     <p align="right"><strong><font size="3" face="Verdana">Single dose toxicity and local tolerance evaluation of the vax-SPIRAL&reg; vaccine in   Sprague Dawley rats.</font></strong></p>     <p align="left">&nbsp;</p>     <p align="left"><font size="2" face="Verdana"><strong>Juan F. Infante, Sergio Sifontes, Eduardo Alvarez, Martha Gonz&aacute;lez, Viviana P&eacute;rez, Eligio Sosa, Mildrey   Fari&ntilde;as, Juan F. N&uacute;&ntilde;ez, Tamara Hern&aacute;ndez, Vismark Torres.</strong><br /> </font></p>     <p align="left"><font size="2" face="Verdana">Instituto Finlay. Centro de Investigaci&oacute;n-Producci&oacute;n de Vacunas y Sueros. Ciudad de La Habana. Cuba. E-mail: <a href="emailto:jinfante@finlay.edu.cu">jinfante@finlay.edu.cu</a></font></p> <hr />     <p align="left"><font size="2" face="Verdana"><strong>RESUMEN</strong></font></p>     <p align="justify"><font size="2" face="Verdana"> Las pruebas precl&iacute;nicas de toxicidad en dosis &uacute;nica y en dosis repetidas brindan una valiosa   informaci&oacute;n sobre la seguridad del producto, al incluir el estudio macrosc&oacute;pico e histopatol&oacute;gico   de &oacute;rganos importantes, as&iacute; como evaluaciones de las v&iacute;as de administraci&oacute;n y el r&eacute;gimen de   dosificaci&oacute;n. Cuba desarroll&oacute; una vacuna polivalente de c&eacute;lulas inactivadas qu&iacute;micamente   adyuvadas con hidr&oacute;xido de aluminio, vax-SPIRAL&reg;. Esta vacuna presenta ventajas en relaci&oacute;n   con otras vacunas como la procedente de la antigua URSS. El esquema de vacunaci&oacute;n para   humanos consiste en dos dosis de 0,5 mL, separadas por un intervalo &oacute;ptimo de seis semanas.<br />  El objetivo de este estudio de toxicidad en ratas Sprague Dawley fue determinar la toxicidad   potencial, letalidad, &oacute;rganos y sistemas susceptibles y otros eventos adversos, as&iacute; como la   toxicidad en el sitio de inoculaci&oacute;n despu&eacute;s de la administraci&oacute;n de una dosis de la vacuna en   estudio. Los resultados indicaron que, bajo las condiciones en estudio y seg&uacute;n los criterios   establecidos para evaluar los datos obtenidos, la vacuna antileptospir&oacute;sica trivalente no produce   efectos t&oacute;xicos en el modelo animal usado. Las &uacute;nicas alteraciones encontradas fueron   formaciones granulomatosas a nivel del sitio de inoculaci&oacute;n. Estas formaciones han sido<br />  reportadas como pertenecientes al adyuvante de dep&oacute;sito (hidr&oacute;xido de aluminio), tambi&eacute;n usado   en otras vacunas de aplicaci&oacute;n parenteral.<br /> </font></p>     ]]></body>
<body><![CDATA[<p align="left"><font size="2" face="Verdana"><strong>Palabras Claves:</strong> Dosis &uacute;nica, Leptospirosis, Rata, Toxicolog&iacute;a, Vacuna, vax-SPIRAL&reg;</font></p> <hr />     <p align="justify"><font size="2" face="Verdana"> <strong>ABSTRACT</strong></font></p>     <p align="justify"><font size="2" face="Verdana"> The pre-clinical toxicity tests in single dose and repeated doses give valuable information on the safety   of the product, since they include the pathological and histopathological study of important organs, as   well as the evaluation of the administration route and the dosage regime. At present, Cuba is Developing   a polyvalent vaccine (vax-SPIRAL&reg;) from chemically inactivated cells, with an aluminium hydroxide   adjuvant. This vaccine has advantages vis a vis other vaccines, as for example, the vaccine from the   former Soviet Union. The vaccination schedule for humans consists in two doses of 0.5 mL, separated   by an optimal interval of six weeks. The objective of this toxicity study in Sprague Dawley rats was to   determine the potential toxicity, lethality, susceptible organs and other adverse events, as well as   toxicity in the inoculation site after administering one dose of the vaccine under study. The results   indicated that, under the conditions of the study and according to the established criteria for evaluating   the data obtained, the antileptospirosic trivalent vaccine dose did not produce toxic effects in the animal   model used. The only alterations found were granuloma formations at the inoculation site. These   formations have been reported as belonging to the deposit adjuvant (aluminum hydroxide), also used in   the other parenteral vaccines.<br />  </font></p>     <p align="left"><font size="2" face="Verdana"><strong>Keywords:</strong> Leptospirosis, Rat, Single Dose, Toxicology, Vaccine, vax-SPIRAL.</font></p> <hr />     <p align="left"><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Texto completo formato PDF </font></p>     <p align="justify" class="Estilo4 Estilo15"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>REFERENCIAS</strong></font></p>     <!-- ref --><p align="left"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"> 1. Midwinter A, Famine S, Adler B. Vaccination of mice with lipopolysaccharide (LPS) and LPS-derived immunoconjugates from Leptospira interrogans. J Med Microb. 1990; 33:199-204. </font><!-- ref --><p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">2. Mart&iacute;nez R, Cruz de la Paz R, L&oacute;pez C. Algunas consideraciones sobre el comportamiento de la Leptospirosis humana en Cuba. Rev Cub Med Trop. 1993;45(1):32-41. </font><p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">3.Gonz&aacute;lez, R 1996. Principios de Toxicolog&iacute;a. Espa&ntilde;a. [en l&iacute;nea]. Octubre 2002. Disponible en: <a href="http://www.iqs.es/cbasicas/farma/farm05/tox/tox01.htm">http://www.iqs.es/cbasicas/farma/farm05/tox/tox01.htm</a>. </font></p>     <!-- ref --><p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">4.Committee for Propietary Medicinal Products. Note for guidance on preclinical and toxicological testing of vaccines. London: The European Agency for the Evaluation of Medicinal Products;1997(CPMP/SWP/465/95). </font><!-- ref --><p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">5.Cruz de la Paz R, Rodr&iacute;guez HP, L&oacute;pez AC, Atienzar CE, Abreu UJ. 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