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<front>
<journal-meta>
<journal-id>0121-8123</journal-id>
<journal-title><![CDATA[Revista Colombiana de Reumatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Colomb.Reumatol.]]></abbrev-journal-title>
<issn>0121-8123</issn>
<publisher>
<publisher-name><![CDATA[Asociación Colombiana de Reumatología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-81232014000200006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Vasculitis urticarial hipocomplementémica: aclaración histórica]]></article-title>
<article-title xml:lang="en"><![CDATA[Hypocomplementemic urticarial vasculitis: Clarification of a historical fact]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maldonado]]></surname>
<given-names><![CDATA[Jorge E]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Iglesias-Gamarra]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Mayo College of Medicine Departamento de Medicina Interna ]]></institution>
<addr-line><![CDATA[Rochester Minnesota]]></addr-line>
<country>EE. UU</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Instituto Latinoamericano de Investigación Biomédica Aplicada (ILADIBA)  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2014</year>
</pub-date>
<volume>21</volume>
<numero>2</numero>
<fpage>84</fpage>
<lpage>90</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-81232014000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-81232014000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-81232014000200006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El síndrome de vasculitis urticarial hipocomplementémica ha recibido enorme interés en la literatura médica, a partir de la publicación original en 1973, en Mayo Clinic Proceedings. El caso índice fue identificado en 1968, como entidad clínica distintiva, por uno de los coautores de la primera publicación y de la revisión actual (Jem), que cierra un ciclo de más de 45 ańos. Las características clínicas diferenciales del síndrome vasculitis urticarial hipocomplementémica determinaron que el consenso 2012 sobre nomenclatura de las Vasculitis de la American Association of Rheumatology le asignara un lugar propio dentro de las enfermedades vasculares inflamatorias. En los últimos ańos y, sobre todo, en los últimos meses, se ha reconocido el síndrome de vasculitis urticarial hipocomplementémica como una forma monogénica de lupus eritematoso, lo cual completa la secuencia histórica de la enfermedad y la coloca dentro del espectro de trastornos del complemento. El énfasis de la publicación está centrado en los aspectos históricos iniciales del proceso, que tienen el singular mérito de ser relatados por el principal autor y testigo, y que no habían sido publicados hasta ahora, aunque sí conocidos de manera personal o privada por reconocidos reumatólogos e inmunológos. La revisión histórica de la evolución del síndrome se ha fundamentado en la revisión de la literatura y en la concatenación de las observaciones ulteriores hasta finales de 2013, cuando se reconoció como una entidad específica y como una forma monogénica del lupus eritematoso.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Hypocomplementemic urticarial vasculitis has received extraordinary interest in the medical literature since the original publication in 1973 in Mayo Clinic Proceedings. The index case was identified in 1968 as a distinct clinical entity, by one of the co-authors of the first publication and of the current review, which closes a cycle of more than 45 years. The differential clinical characteristics of hypocomplementemic urticarial vasculitis syndrome determined that the 2012 consensus on nomenclature of Vasculitis of the american rheumatology association, designated the syndrome as a separate entity with its own place among the inflammatory vascular diseases. In the last few years, and particularly in the last few months, hypocomplementemic urticarial vasculitis syndrome has been recognized as a monogenic form of lupus erythematosus, an observation that completes the historical sequence of the disease, and places it among the spectrum of complement disorders. The emphasis of the article is centered on the initial historical aspects of the process, that have the unique merit of being recorded by the principal author and witness, and not previously published, albeit privately known by prominent rheumatologists and immunologists. The historical review of the evolution of the syndrome is based on a review of the literature, relating subsequent observations until the end of 2013, when the syndrome was recognized as a monogenic form of lupus erythematosus.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Vasculitis urticarial hipocomplementémica]]></kwd>
<kwd lng="es"><![CDATA[Lupus eritematoso sistémico]]></kwd>
<kwd lng="es"><![CDATA[Vasculitis]]></kwd>
<kwd lng="es"><![CDATA[Urticaria]]></kwd>
<kwd lng="en"><![CDATA[Hypocomplementemic urticarial vasculitis]]></kwd>
<kwd lng="en"><![CDATA[Systemic lupus erythematosus]]></kwd>
<kwd lng="en"><![CDATA[Vasculitis]]></kwd>
<kwd lng="en"><![CDATA[Urticaria]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <font face="verdana" size="2">     <p><B>Art&iacute;culo de revisi&oacute;n</B></p>     <p align="center"><font size="4"><b>Vasculitis urticarial hipocomplement&eacute;mica: aclaraci&oacute;n hist&oacute;rica</b></font></p>     <p align="center"><font size="3"><b>Hypocomplementemic urticarial vasculitis: Clarification of a historical fact</b></font></p>     <p align="center"><B><I>Jorge E. Maldonado</I></B><Sup><I>a,b,d,</I></Sup><I>* y <b>Antonio Iglesias-Gamarra</b></I><Sup><I>c,d </I></Sup></p>     <p><Sup>a</Sup><I>Departamento de Medicina Interna, Mayo College of Medicine (1976), Rochester, Minnesota, EE. UU. </I>    <br> <Sup>b</Sup><I>Instituto Latinoamericano de Investigaci&oacute;n Biom&eacute;dica Aplicada (ILADIBA), Bogot&aacute;, Colombia </I>    <br> <Sup>c</Sup><I>Departamento de Medicina Interna, Universidad Nacional de Colombia, Bogot&aacute;, Colombia </I>    <br> <Sup>d</Sup><I>Academia Nacional de Medicina, Bogot&aacute;, Colombia </I></p>     <p><SUP>*</SUP><I>Autor para correspondencia. </I>correo electr&oacute;nico: <a href="mailto:jorgem@emsa.com.co">jorgem@emsa.com.co</a> (J.e. Maldonado) </p>     ]]></body>
<body><![CDATA[<p><I>Historia del art&iacute;culo: </I> recibido el 28 de noviembre de 2013 aceptado el 22 de mayo de 2014 </p> <hr>     <p><b><font size="3">Resumen</font></b></p>     <P>El s&iacute;ndrome de vasculitis urticarial hipocomplement&eacute;mica ha recibido enorme inter&eacute;s en la literatura m&eacute;dica, a partir de la publicaci&oacute;n original en 1973, en <I>Mayo Clinic Proceedings</I>. El caso &iacute;ndice fue identificado en 1968, como entidad cl&iacute;nica distintiva, por uno de los coautores de la primera publicaci&oacute;n y de la revisi&oacute;n actual (Jem), que cierra un ciclo de m&aacute;s de 45 a&ntilde;os. Las caracter&iacute;sticas cl&iacute;nicas diferenciales del s&iacute;ndrome vasculitis urticarial hipocomplement&eacute;mica determinaron que el consenso 2012 sobre nomenclatura de las Vasculitis de la <I>American Association of Rheumatology</I> le asignara un lugar propio dentro de las enfermedades vasculares inflamatorias. En los &uacute;ltimos a&ntilde;os y, sobre todo, en los &uacute;ltimos meses, se ha reconocido el s&iacute;ndrome de vasculitis urticarial hipocomplement&eacute;mica como una forma monog&eacute;nica de lupus eritematoso, lo cual completa la secuencia hist&oacute;rica de la enfermedad y la coloca dentro del espectro de trastornos del complemento. </p>     <p>El &eacute;nfasis de la publicaci&oacute;n est&aacute; centrado en los aspectos hist&oacute;ricos iniciales del proceso, que tienen el singular m&eacute;rito de ser relatados por el principal autor y testigo, y que no hab&iacute;an sido publicados hasta ahora, aunque s&iacute; conocidos de manera personal o privada por reconocidos reumat&oacute;logos e inmunol&oacute;gos. </p>     <p>La revisi&oacute;n hist&oacute;rica de la evoluci&oacute;n del s&iacute;ndrome se ha fundamentado en la revisi&oacute;n de la literatura y en la concatenaci&oacute;n de las observaciones ulteriores hasta finales de 2013, cuando se reconoci&oacute; como una entidad espec&iacute;fica y como una forma monog&eacute;nica del lupus eritematoso.</p>     <p><b><I>Palabras clave: </I></b>Vasculitis urticarial hipocomplement&eacute;mica, Lupus eritematoso sist&eacute;mico, Vasculitis, Urticaria.</p> <HR>     <p><font size="3"><b>Abstract</b></font></p>      <p>Hypocomplementemic urticarial vasculitis has received extraordinary interest in the medical literature since the original publication in 1973 in <I>Mayo Clinic Proceedings</I>. The index case was identified in 1968 as a distinct clinical entity, by one of the co-authors of the first  publication and of the current review, which closes a cycle of more than 45 years. The differential clinical characteristics of hypocomplementemic urticarial vasculitis syndrome  determined that the 2012 consensus on nomenclature of Vasculitis of the american  rheumatology association, designated the syndrome as a separate entity with its own place among the inflammatory vascular diseases. In the last few years, and particularly  in the last few months, hypocomplementemic urticarial vasculitis syndrome has been recognized as a monogenic form of lupus erythematosus, an observation that completes the historical sequence of the disease, and places it among the spectrum of complement  disorders.</p>     <P>The emphasis of the article is centered on the initial historical aspects of the process, that have the unique merit of being recorded by the principal author and witness, and not previously published, albeit privately known by prominent rheumatologists and  immunologists.</P>     <P>The historical review of the evolution of the syndrome is based on a review of the literature, relating subsequent observations until the end of 2013, when the syndrome was recognized as a monogenic form of lupus erythematosus.</P>     ]]></body>
<body><![CDATA[<p><b><I>Keywords: </I></b>Hypocomplementemic urticarial vasculitis,  Systemic lupus erythematosus, Vasculitis, Urticaria.</p> <HR>     <p><font size="3"><b>Introducci&oacute;n</b></font></p>     <p> La vasculitis urticariana es una entidad cl&iacute;nico-patol&oacute;gica que se caracteriza por episodios recurrentes de lesiones cut&aacute;neas que parecen urticaria. Sin embargo, histol&oacute;gicamente se documenta una vasculitis leucocitocl&aacute;stica. </p>     <p>Las manifestaciones cut&aacute;neas de las urticarias vascul&iacute;ticas se caracterizan por ser dolorosas, acompa&ntilde;adas de sensaci&oacute;n de quemaduras y prurito. La caracter&iacute;stica m&aacute;s importante es la persistencia de la lesi&oacute;n cut&aacute;nea durante m&aacute;s de 24 horas, lo cual sugiere que se trata de una vasculitis leucocitocl&aacute;stica o linfomonoc&iacute;tica y no de una urticaria no vascul&iacute;tica, que es de pocas horas de duraci&oacute;n y nunca permanece m&aacute;s de 24 horas<Sup>1</Sup>. </p>     <p>La vasculitis leucocitocl&aacute;stica es un s&iacute;ndrome asociado a m&uacute;ltiples etiolog&iacute;as. La vasculitis urticariana puede ser idiop&aacute;tica, asociada a enfermedades autoinmunes como el lupus eritematoso generalizado, infecciones, reacciones medicamentosas o representar una manifestaci&oacute;n paraneopl&aacute;sica. Algunas de esas vasculitis pueden ser normocomplement&eacute;micas o hipocomplement&eacute;micas y acompa&ntilde;arse de elevaci&oacute;n de la sedimentaci&oacute;n globular. </p>     <p>Una asociaci&oacute;n de lupus eritematoso generalizado (leG) con anticuerpos anti-o c1q puede estar presente en pacientes con leG o lupus con vasculitis urticariana. En algunos de estos pacientes se pueden afectar otros &oacute;rganos. </p>     <p>El informe inicial del s&iacute;ndrome de vasculitis urticarial (o urticariana) hipocomplement&eacute;mica (en ingl&eacute;s "<I>hypocomplementemic urticarial vasculitis</I>" o HuV) apareci&oacute; en 1973 en <I>Mayo Clinic Proceedings</I><Sup>2</Sup> (ver anexo 1) y uno de nosotros (Jem) figura como coautor. Ese caso &iacute;ndice, el primero registrado, fue visto en 1968 y, desde entonces, diferenciado cl&iacute;nicamente. Las manifestaciones principales eran vasculitis urticariana, artralgias y artritis. </p>     <p>A&ntilde;os despu&eacute;s, markus napirei et al.<Sup>3</Sup>, de la universidad de essex, alemania, describieron en ratones una mutaci&oacute;n deficiente en dnasa 1 que desarrollaban una enfermedad parecida al lupus. dnasa 1 es la nucleasa requerida para remover el dna de los anticuerpos nucleares presentes en los sitios de altos recambios. Que esa deficiencia se asocia al lupus, tanto en humanos como en ratones, lo demostr&oacute; en 1981 el grupo de eng tan<Sup>4</Sup>. </p>     <p>En 2001, Koji Yasutomo et al.<Sup>5</Sup>, de la universidad de tokushima, documentaron la deficiencia de dnase 1 en pacientes con lupus y de ese modo demostraron la caracter&iacute;stica del lupus monog&eacute;nico de acuerdo con los estudios cl&iacute;nicos de Belot y cimaz<Sup>6</Sup>. </p>     <p>Revisada la secuencia hist&oacute;rica, a trav&eacute;s del an&aacute;lisis sistem&aacute;tico de la literatura sobre la vasculitis urticariana hipocomplement&eacute;mica, partiendo del caso original o &iacute;ndice, se logr&oacute; establecer que el caso indentificado en 1968 por el Profesor maldonado fue el primer caso reconocido de lupus monog&eacute;nico. All&iacute; la importancia de este informe. </p>     ]]></body>
<body><![CDATA[<p><font size="3"><B>Materiales y m&eacute;todos</B></font></p>     <p> Se practic&oacute; una revisi&oacute;n actualizada hasta septiembre de 2013 sobre vasculitis urticaria (o urticariana) hipocomplement&eacute;mica a partir de la publicaci&oacute;n original de 1973. Se revisaron las bases de datos de <I>PubMed </I>y<I> Scielo,</I> y se revisaron y cotejaron 174 referencicas citadas en <I>UpToDate</I> hasta finales de 2013. </p>     <p>El proceso de revisi&oacute;n hist&oacute;rica parti&oacute; de la revisi&oacute;n del caso &iacute;ndice de la publicaci&oacute;n original sobre el s&iacute;ndrome HuV y el an&aacute;lisis de los casos publicados en la literatura que establecen el car&aacute;cter cl&iacute;nico &uacute;nico de la entidad. </p>     <p>En ese proceso, los autores establecieron y documentaron la concatenaci&oacute;n de la deficiencia caracter&iacute;stica del s&iacute;ndrome HuV con el lupus monog&eacute;nico. Las principales publicaciones son analizadas a la luz de la evoluci&oacute;n hist&oacute;rica y gen&eacute;tica. </p>     <p>De esa manera la revisi&oacute;n tiene un doble aporte que cierra un ciclo de m&aacute;s de 45 a&ntilde;os: la historia del caso &iacute;ndice y la correlaci&oacute;n del s&iacute;ndrome HuV con el lupus monog&eacute;nico. </p>     <p><font size="3"><B>Resultados</B></font></p>     <p> Se identificaron alrededor de 200 art&iacute;culos relacionados directa o indirectamente con el s&iacute;ndrome de HuV y a continuaci&oacute;n se resume lo m&aacute;s relevante de este s&iacute;ndrome. Es importante anotar que siendo una nueva entidad (lupus monog&eacute;nico), cuya precisi&oacute;n tom&oacute; m&aacute;s de 40 a&ntilde;os, muchos casos o no fueron reconocidos como tales o fueron reportados de diferentes maneras. Por ende, la revisi&oacute;n hist&oacute;rica es puntual o no totalmente incluyente y en sentido estricto la parte inicial es anecd&oacute;tica e in&eacute;dita. </p>     <p>El consenso 2012 de la <I>American Association of Rheumatology</I><Sup>7 </Sup>sobre nomenclatura de las vasculitis reconoce claramente el s&iacute;ndrome de HuV como una entidad clinicopatol&oacute;gica. </p>     <p>Los criterios diagn&oacute;sticos mayores de HuV son urticaria de m&aacute;s de 6 meses de duraci&oacute;n e hipocomplementemia.</p>     <p>Son criterios menores venulitis de la dermis demostrada por biopsia, artralgias o artritis, glomerulonefritis leve, uve&iacute;tis o episcleritis, dolor abdominal recurrente y prueba positiva de precipitina por inmunodifusi&oacute;n para c1q con supresi&oacute;n asociada del nivel de c1q, criterios establecidos por investigadores de la <I>Mayo Clinic</I> en 1982, de acuerdo con Schwartz et al.<Sup>8-26 </Sup>. </p>     ]]></body>
<body><![CDATA[<p><B>Revisi&oacute;n hist&oacute;rica</B></p>     <p>A la luz de la inclusi&oacute;n definitiva del s&iacute;ndrome de HuV como entidad cl&iacute;nica independiente, s&oacute;lidamente confirmada despu&eacute;s de 45 a&ntilde;os de la identificaci&oacute;n como tal, por uno de nosotros, del caso &iacute;ndice que llev&oacute; a la primera publicaci&oacute;n sobre el s&iacute;ndrome y a ulteriores publicaciones, hemos considerado de trascendental importancia para la ciencia colombiana hacer una aclaraci&oacute;n hist&oacute;rica que consigne en la literatura m&eacute;dica el descubrimiento del primer caso de s&iacute;ndrome de HuV. </p>     <p>Como se rese&ntilde;a de manera descriptiva m&aacute;s adelante, luego de la evaluaci&oacute;n en 1968, el caso pas&oacute; de ser "lupus eritematoso at&iacute;pico" a ser registrado de manera que lo separaba de otras entidades similares o afines y como entidad cl&iacute;nica &uacute;nica o diferente, caracterizada por urticaria, artralgias e hipocomplementemia. Entre 1968 y 1972 aparecer&iacute;an en la cl&iacute;nica mayo otros casos. </p>     <p>El recuento hist&oacute;rico que sigue a continuaci&oacute;n, escrito originalmente en ingl&eacute;s, ha circulado entre expertos en el ramo que han conocido la historia que hoy deseamos dejar consignada en la revista de la asociaci&oacute;n colombiana de reumatolog&iacute;a. </p>     <p>"I read with great personal interest the 2012 revised International chapel Hill consensus nomenclature of Vasculitides<Sup>7</Sup>. This consensus includes hypocomplementemic urticarial vasculitis (HuV), also referred as anti-c1q vasculitis. The original report of HuV appeared in mayo clinic Proceedings in 1973<Sup>2 </Sup>and I was one of the coauthors. on many occasions, albeit not in the consensus, HuV has been given the eponym mcduffie Syndrome<Sup>27 </Sup>to recognize the first author, frank mcduffie, who was a former colleague of mine at the mayo clinic. </p>     <p>As the internist on the first case, I write to recount the history of HuV. The first patient (case #1; mrs. Re) was a young lady from northern minnesota. Between 1965 and 1967 she had been seen at mayo several times and had been labeled as "atypical lupus erythematosus". In 1968, I was a young assistant Professor of medicine at the mayo clinic and during a rotation at St. Mary&acute;s Hospital the resident on call presented this patient. from the first encounter I said to the group "this is not le, this is something else". A positive syphilis serology was not a false positive but a true positive, a fact corroborated by spinal tap and further Vdrl tests. There were other clues, for example, repeatedly negative ana. </p>     <p>As would be expected, many consultants participated, among them allergists, rheumatologists and immunologists including dr. fred mc duffie from the rheumatology Immunology laboratory. Hypocomplementemia was found but the most accepted diagnosis among others for the mysterious case was c1 esterase deficiency. However I stubbornly insisted in a "new disease". </p>     <p>At the time of discharge we had a descriptive name with the clinical and laboratory components. I decided to treat the patient as having an immune disorder and gave immunosuppressive therapy. The patient responded. </p>     <p>Years passed and fred mcduffie called me and said "George, you were right, we have now other cases and we would like to publish them. Would you contribute your case and be in the paper?" By then I was totally immersed in hematology electron microscopy research but I agreed. Among the coauthors were eduardo Samayoa, a resident from Guatemala city (today a rheumatologist) and Paul andreini, a classmate of mine as resident in internal medicine, who had seen one of the other patients in the group. The rest is history, especially the paper in mayo Proceedings, which records as index case (#1) the original patient that established a new clinical entity. </p>     <p>In the sunset of my life, I feel compelled to tell this story, which at the time was well known by distinguished rheumatologists and immunologists like donato alarc&oacute;n-Segovia and antonio Iglesias-Gamarra. The story is valuable for the history of medicine and especially of rheumatology and immunology". </p>     ]]></body>
<body><![CDATA[<p><B>Compilaci&oacute;n y an&aacute;lisis de la literatura</B></p>     <p>Al documentar la historia del profesor maldonado nos propusimos revisar cr&iacute;ticamente el comportamiento de la HuVS como una entidad cl&iacute;nico patol&oacute;gica, como una &lsquo;new disease', de acuerdo con el coautor del art&iacute;culo quien estudi&oacute; a la primera paciente. Este es un an&aacute;lisis hist&oacute;rico centrado en hechos probatorios. </p>     <p>El doctor fred mcduffie era, para la &eacute;poca, el director del laboratorio de Inmunolog&iacute;a y reumatolog&iacute;a de la mayo clinic, instituci&oacute;n donde, en el laboratorio de Hematolog&iacute;a, se describi&oacute; la c&eacute;lula le por malcom m. Hargraves, Hellen richmond y robert morton, hallazgo reportado en la revista de la cl&iacute;nica mayo, Proceedings of the Staff meetings of the mayo clinic<Sup>5</Sup>. </p>     <p>All&iacute; mismo se descubre la cortisona, por el grupo dirigido por el doctor Philip Hench, el primer premio nobel otorgado a un reumat&oacute;logo. Podemos afirmar que en la cl&iacute;nica mayo nace la reumatolog&iacute;a y se expande hacia todo estados unidos y al mundo y, por ende, se desarrolla y se estructura uno de los primeros laboratorios cl&iacute;nicos de reumatolog&iacute;a e inmunolog&iacute;a. </p>     <p><B>Controversia sobre el s&iacute;ndrome HUV y evoluci&oacute;n inmunol&oacute;gica hacia una forma de lupus eritematoso monog&eacute;nico</B></p>     <p> Algunas controversias han surgido por este s&iacute;ndrome, como la planteada por davis et al.<Sup>28</Sup>, en 1998, porque ellos observaron que m&aacute;s del 50% de los pacientes desarrollaba lupus. </p>     <p>Con base en estudios gen&eacute;ticos recientes es de aceptaci&oacute;n creciente que el s&iacute;ndrome HuV es asociado de manera especial al lupus. Sin embargo, de acuerdo con 174 art&iacute;culos, sobre el tema, revisados en uptodate, esa vinculaci&oacute;n del s&iacute;ndrome HuV pas&oacute; desapercibida hasta llegar a los estudios gen&eacute;ticos. </p>     <p>Como lo reportaron aydogan et al.<Sup>29</Sup>, en el 2006, el anticuerpo se une a la regi&oacute;n similar al col&aacute;geno del c1q en el 100% de los pacientes en el HuVS, pero tambi&eacute;n se detecta en el 30%-35% de los pacientes con lupus<Sup>30,31</Sup>. Por ello se considera que el anticuerpo anti-c1q es un criterio espec&iacute;fico para el HuVS. La uni&oacute;n del complejo inmunitario c1q-anti-c1q inicia la actividad de la enfermedad<Sup>32-43 </Sup>. </p>     <p>Se considera al lupus como una enfermedad autoinmune cl&aacute;sica, tipo 3 de acuerdo con los criterios de Gell y coombs. Los estudios gen&eacute;ticos, que han utilizado el m&eacute;todo de &lsquo;<I>Genomawide Association</I>' han identificado m&aacute;s de 30 <I>loci</I> en pacientes l&uacute;picos. Como es una enfermedad muy heterog&eacute;nea, multifactorial y multig&eacute;nica, es posible que existan m&uacute;ltiples v&iacute;as asociadas. Pocos casos en ni&ntilde;os han sido reportados, como el de Waldo et al.<Sup>44</Sup>, reportado en 1985, el del grupo de pediatras italianos martini et al.<Sup>45</Sup>, reportado en 1994 y la publicaci&oacute;n de renard et al.<Sup>46</Sup>, en 1998. </p>     <p>Al estudiar una familia con tres ni&ntilde;os afectados, que desarrollaron la enfermedad en sitios y a edades diferentes, Z. Birsin &Ouml;z&ccedil;akar et al.<Sup>47,48</Sup>, utilizando la tecnolog&iacute;a "<I>Autozygosity mapping combined with whole-exome sequencing</I>", encontraron la mutaci&oacute;n c.289_290 del ac en el dnaSe1l3 loci, que incluye diferentes mecanismos gen&eacute;ticos como apoptosis, ubiquitinaci&oacute;n y respuesta inmunitaria a trav&eacute;s de complejos inmunitarios como fagocitosis de c1q-antic1q. </p>     ]]></body>
<body><![CDATA[<p>En cuanto a las diferentes mutaciones asociadas a casos con lupus, estas son raras a nivel mendeliano, pero al identificar estas mutaciones podemos lograr entender la patog&eacute;nesis del lupus. Una de estas prote&iacute;nas codificadas por el dna SeIl3 es uno de los hom&oacute;logos que se encuentra asociada al dnaasa I, que funciona como una endonucleasa que escinde el adn de simple y de doble cadena. Con la mutaci&oacute;n de dna SeIl3, se produce una p&eacute;rdida de la tolerancia inmunol&oacute;gica con una gran reactividad de clonos de c&eacute;lulas B, que producen anticuerpos anti-c1q, con formaci&oacute;n de complejos inmunitarios, que se depositan en las membranas celulares de diferentes &oacute;rganos con consumo del complemento, tal como se describe en el HuVS. </p>     <p>Solo hasta 1994, Wisnieski et al.<Sup>49 </Sup>informan dos casos de gemelos id&eacute;nticos con HuVS, que desarrollaron la enfermedad en sitios y a edades diferentes y sugieren que estos tienen, posiblemente, un origen gen&eacute;tico, as&iacute; como algunos factores ambientales que puedan activar el inicio de la enfermedad. dos a&ntilde;os despu&eacute;s, Z. Birsin &Ouml;z&ccedil;akar et al.<Sup>47</Sup>, de la universidad de ankara, en turqu&iacute;a, informan 3 hermanos con HuVS y en el n&uacute;mero de agosto de 2013, de la revista <I>Arthritis and Rheumatism</I> este grupo de la universidad de ankara y de la universidad de miami, estudiaron 3 hermanos y en la familia 2, otros dos ni&ntilde;os<Sup>13</Sup>. </p>     <p>En el a&ntilde;o 2000, en un art&iacute;culo seminal napirei et al.<Sup>3</Sup>, en el <I>Nature Genetics</I> logran demostrar la deficiencia de la enzima dnaasa I en ratones que desarrollan s&iacute;ntomas compatibles con lupus. Al remover el dna de los n&uacute;cleos celulares se genera un alto recambio celular, sin autocontrol a trav&eacute;s del adn. </p>     <p>Un a&ntilde;o despu&eacute;s, Yasumoto et al.<Sup>5</Sup>, en Jap&oacute;n, describen 2 pacientes con lupus en quienes se logra demostrar una mutaci&oacute;n del dnaSe1l3 y se documenta la forma monog&eacute;nica de un lupus familiar. Estos estudios demuestran la forma monog&eacute;nica del lupus. Belot y cimaz<Sup>6 </Sup>describen de manera brillante los diferentes hallazgos hasta esa &eacute;poca. </p>     <p>Queremos resaltar que quien primero mencion&oacute; y describi&oacute; la asociaci&oacute;n de la deficiencia de algunos componentes del complemento a casos benignos de lupus fue Vincet agnello<Sup>50</Sup>, de Boston, en los a&ntilde;os 70. </p>     <p>Se han descrito casos de lupus monog&eacute;nico en lupus juvenil y en algunos pacientes con fenotipos parecidos al lupus, debido a mutaciones asociadas tanto a los diferentes genes del complemento como las deficiencias del c1Qa, c1QB, c1Qc, c4B de acuerdo con una revisi&oacute;n publicada en el 2009<Sup>50</Sup>. </p>     <p>Tambi&eacute;n se ha demostrado la asociaci&oacute;n con alelos nulos de c4ac (c4aQo), que en algunas poblaciones se encuentra en desequilibrio de enlace con el B8, que es un haplotipo de dr3 del complejo mayor de histocompatibilidad de acuerdo con el estudio de davies et al.<Sup>51</Sup>. </p>     <p>Lee-Kirsch et al.<Sup>52</Sup>, en el a&ntilde;o 2007, describen la mutaci&oacute;n de la exonucleasa treX1 asociada a casos con lupus familiar. Recientemente, alexandre Belot y un grupo de investigadores de lyon<Sup>53</Sup>, del InSerm en francia, describen la deficiencia de la cS Protein Kinasa como una causa mendeliana de un lupus juvenil. Se considera que la prote&iacute;na cS Protein Kinasa regula la tolerancia de las c&eacute;lulas B, que previene la auto-reactividad. La deficiencia de esa prote&iacute;na hace que se pierda el control y apoptosis de las c&eacute;lulas B, lo que permite una gran proliferaci&oacute;n de c&eacute;lulas, con gran producci&oacute;n de auto-anticuerpos. </p>     <p>Con esta revisi&oacute;n, volvemos al trabajo extraordinario, de Z. Birsin &Ouml;z&ccedil;akar en el que documenta claramente la mutaci&oacute;n de la dnaSe1l3 en las dos familias en el s&iacute;ndrome de vasculitis, urticaria e hipocomplementemia o s&iacute;ndrome HuVS, descrito en el art&iacute;culo original de mcduffie et al., en 1973<Sup>2</Sup>. </p>     <p>Queremos resaltar con esta revisi&oacute;n la importancia del primer caso de un lupus monog&eacute;nico de tipo gen&eacute;tico y familiar, que despu&eacute;s de 40 a&ntilde;os y de m&uacute;ltiples publicaciones demostramos que es el primer caso publicado en la literatura universal. </p>     ]]></body>
<body><![CDATA[<p><B>Se cierra un ciclo hist&oacute;rico de m&aacute;s de 40 a&ntilde;os</B></p>     <p>La observaci&oacute;n cl&iacute;nica pionera de maldonado en 1968 identific&oacute; un s&iacute;ndrome cl&iacute;nico-patol&oacute;gico &uacute;nico y diferente, af&iacute;n s&iacute; pero que no encuadraba con el lupus eritematoso cl&aacute;sico, de tanto reconocimiento en la cl&iacute;nica mayo. </p>     <p>Durante las siguientes d&eacute;cadas qued&oacute; empotrada en los anales de la historia de la medicina el s&iacute;ndrome de HuV o s&iacute;ndrome de vasculitis urticarial hipocomplement&eacute;mica. </p>     <p>Sin embargo, a trav&eacute;s de la gen&eacute;tica como se vino a saber, hace poco, que la alteraci&oacute;n o mutaci&oacute;n de un gen es el puente entre el lupus eritematoso con el s&iacute;ndrome HuV como variante monog&eacute;nica del lupus. </p>     <p>Para la historia queda registrado que un hemat&oacute;logo colombiano identific&oacute; el primer caso mundial de HuV. </p>     <p><B>Conflicto de intereses</B></p>     <p>Los autores declaran no tener ning&uacute;n conflicto de intereses. </p> <HR>     <p><font size="3"><b>Bibliograf&iacute;a</b></font></p>     <!-- ref --><P>1. Venzor J, Lee W.L Houston D.P. Urticarial vasculitis. Clin rev allergy Immunol. 2002;23:201-16.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000081&pid=S0121-8123201400020000600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></P>     ]]></body>
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<body><![CDATA[<!-- ref --><p>7. Jennette JC, Falk RJ, Bacon PA, Basu N, Cid MC, Ferrario F, et al. 2012 Revised International chapel Hill consensus conference nomenclature of Vasculitides. Arthritis rheum. 2013;65:1-11.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000093&pid=S0121-8123201400020000600007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>     <!-- ref --><p>8. Schwartz Hr, MC Duffie FC, Black LF, Schroeter AL, Conn DL. Hypocomplementemic urticarial vasculitis: association with chronic obstructive pulmonary disease. Mayo clin Proc. 1982;57:231-8.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000095&pid=S0121-8123201400020000600008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>     <!-- ref --><p>9. Soter NA. Chronic urticaria as a manifestation of necrotizing venulitis. N engl J med. 1977;296:1440-2.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000097&pid=S0121-8123201400020000600009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>     <!-- ref --><p>10. Warin RP. Urticarial vasculitis. Br med J (clin res ed). 1983;286:1919-20.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000099&pid=S0121-8123201400020000600010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>     <!-- ref --><p>11. Wisnieski JJ. Urticarial vasculitis. Curr opin rheumatol. 2000;12:24-31.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000101&pid=S0121-8123201400020000600011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>     ]]></body>
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