{"id":1167224,"date":"2020-07-26T20:18:22","date_gmt":"2020-07-26T19:18:22","guid":{"rendered":"https:\/\/www.pressenza.com\/?p=1167224"},"modified":"2020-07-26T20:18:22","modified_gmt":"2020-07-26T19:18:22","slug":"descubren-la-causa-de-la-perdida-de-olfato-por-la-covid-19","status":"publish","type":"post","link":"https:\/\/www.pressenza.com\/es\/2020\/07\/descubren-la-causa-de-la-perdida-de-olfato-por-la-covid-19\/","title":{"rendered":"Descubren la causa de la p\u00e9rdida de olfato por la COVID-19"},"content":{"rendered":"<p>Los cient\u00edficos explican la clave que provoca la p\u00e9rdida del olfato y del gusto que es el principal s\u00edntoma neurol\u00f3gico de la enfermedad COVID-19.<\/p>\n<p>Una investigaci\u00f3n dirigida\u00a0por un equipo internacional de neurocient\u00edficos de la Facultad de Medicina de la Universidad de Harvard, citado esta semana por la revista Science Advances, identific\u00f3 los tipos de c\u00e9lulas olfativas m\u00e1s vulnerables a la infecci\u00f3n por el nuevo coronavirus.<\/p>\n<p>Anteriormente se cre\u00eda que la anosmia (p\u00e9rdida del olfato a corto plazo) se produc\u00eda cuando el virus infectaba las neuronas sensoriales en la parte superior de la cavidad nasal, evitando la transmisi\u00f3n de se\u00f1ales de olor al cerebro, pero el nuevo estudio refuta esta suposici\u00f3n.<\/p>\n<p>\u201cNuestros hallazgos indican que el nuevo coronavirus\u00a0cambia el sentido del olfato\u00a0en los pacientes\u00a0no al infectar directamente las neuronas, sino al afectar la funcionalidad de las c\u00e9lulas de apoyo\u201d,\u00a0explic\u00f3\u00a0Sandeep Robert Datta el neurobi\u00f3logo y autor principal del estudio.<\/p>\n<p>El estudio sugiere que las neuronas sensoriales olfativas no son vulnerables a la infecci\u00f3n por coronavirus porque no expresan ACE2, una prote\u00edna clave que el pat\u00f3geno usa para ingresar a las c\u00e9lulas humanas. En cambio, ACE2 se libera en c\u00e9lulas que proporcionan soporte metab\u00f3lico y estructural a las neuronas sensoriales olfativas, as\u00ed como a ciertas poblaciones de c\u00e9lulas madre y c\u00e9lulas de los vasos sangu\u00edneos.<\/p>\n<p>El descubrimiento es alentador, seg\u00fan Sandeep, ya que sugiere que, en la mayor\u00eda de los casos, el coronavirus no provoca da\u00f1os graves y permanentes en las redes nerviosas. Por lo tanto, despu\u00e9s de la recuperaci\u00f3n, las neuronas no cambiar\u00e1n ni se reorganizar\u00e1n, y\u00a0no existe el riesgo de una p\u00e9rdida completa del olfato\u00a0en los pacientes.<\/p>\n<p>\u201cCreo que son buenas noticias, porque una vez que la infecci\u00f3n desaparece, las neuronas olfativas no parecen necesitar ser reemplazadas o reconstruidas desde cero\u201d, se\u00f1al\u00f3 el experto mientras\u00a0record\u00f3 que se necesita comprender mejor c\u00f3mo act\u00faan los mecanismos subyacentes para confirmar esta conclusi\u00f3n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Los cient\u00edficos explican la clave que provoca la p\u00e9rdida del olfato y del gusto que es el principal s\u00edntoma neurol\u00f3gico de la enfermedad COVID-19. Una investigaci\u00f3n dirigida\u00a0por un equipo internacional de neurocient\u00edficos de la Facultad de Medicina de la Universidad&hellip;<\/p>\n","protected":false},"author":954,"featured_media":1167226,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39,1239],"tags":[73914,79344],"class_list":["post-1167224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-internacional","category-salud","tag-deteccion-coronavirus","tag-olfato"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Descubren la causa de la p\u00e9rdida de olfato por la COVID-19<\/title>\n<meta name=\"description\" content=\"Descubren la causa de la p\u00e9rdida de olfato por la COVID-19\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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