{"id":184,"date":"2010-06-10T10:17:16","date_gmt":"2010-06-10T14:17:16","guid":{"rendered":"http:\/\/medicina.udd.cl\/medicina-santiago\/2010\/06\/10\/determinacion-de-las-fibras-que-median-la-hiperalgesia-alodinia-inducida-experimentalmente-por-capsaicina\/"},"modified":"2010-06-10T10:17:16","modified_gmt":"2010-06-10T14:17:16","slug":"determinacion-de-las-fibras-que-median-la-hiperalgesia-alodinia-inducida-experimentalmente-por-capsaicina","status":"publish","type":"post","link":"https:\/\/medicina.udd.cl\/medicina-santiago\/noticias\/2010\/06\/10\/determinacion-de-las-fibras-que-median-la-hiperalgesia-alodinia-inducida-experimentalmente-por-capsaicina\/","title":{"rendered":"Determinaci\u00f3n de las fibras que median la hiperalgesia-alod\u00ednia inducida experimentalmente por capsaicina"},"content":{"rendered":"<p style=\"text-align: justify\"><strong>Resumen<\/strong><\/p>\n<p style=\"text-align: justify\">El dolor neurop\u00e1tico se define como la sensaci\u00f3n de dolor causado por una lesi\u00f3n al nociceptor o una disfunci\u00f3n del sistema nervioso<sup> <\/sup>siendo la octava causa de consulta neurologica.<\/p>\n<p style=\"text-align: justify\">En el DNP evocado se expresan s\u00edntomas que indican la presencia de esta disfunci\u00f3n como la hiperalgesia-alodinia, que se presenta como una reacci\u00f3n dolorosa ante est\u00edmulos que normalmente no son dolorosos.<\/p>\n<p style=\"text-align: justify\">Puntualmente, para explicar estos fen\u00f3menos se conocen dos teor\u00edas, la de sensibilizaci\u00f3n perif\u00e9rica y la teor\u00eda de la compuerta del dolor que incluye una interacci\u00f3n entre elementos moleculares y de conducci\u00f3n especifica dada por distintos tipos de fibras.<\/p>\n<p style=\"text-align: justify\">Postulamos que la hiperalgesia-alodinia esta mediada por receptores sensibilizados en la periferia y conducida por fibras C, con la exclusi\u00f3n completa de las fibras A en el proceso.<\/p>\n<p style=\"text-align: justify\">Actualmente, el fen\u00f3meno no se entiende a cabalidad ya que no se describe con exactitud las fibras que la promueven. Nuestro estudio pretendi\u00f3 tratar de responder si el fen\u00f3meno estaba mediado por las fibras A \u00f3 C, mediante el bloqueo isqu\u00e9mico de las fibras A en 7 sujetos sometidos ante est\u00edmulos de tibieza, fr\u00edo, tacto y dolor, previa administraci\u00f3n de capsaicina al 0,025% para inducir el fen\u00f3meno.<\/p>\n<p style=\"text-align: justify\">Como resultado, podemos confirmar en una primera instancia que la capsaicina s\u00ed genera hiperalgesia-alodinia y que a medida que el bloqueo se va produciendo hay una disminuci\u00f3n no significativa de la sensaci\u00f3n dolorosa provocada por un est\u00edmulo punzante, concluyendo finalmente que la inducci\u00f3n experimental de la hiperalgesia-alodinia ante est\u00edmulos punzantes es mediada por las fibras tipo C.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gonz\u00e1lez, P.1, Hern\u00e1ndez, J.P.1, Hodali, A.1, Mart\u00ednez, L.1, Rodr\u00edguez, F.1, Thorkelsen, G.1<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-184","post","type-post","status-publish","format-standard","hentry","category-sin-categoria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - 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