{"id":17997,"date":"2026-10-12T14:36:42","date_gmt":"2026-10-12T17:36:42","guid":{"rendered":"https:\/\/noti-america.com\/site\/argentina\/?p=17997"},"modified":"2026-10-12T14:37:40","modified_gmt":"2026-10-12T17:37:40","slug":"bacterias-del-intestino-previas-a-la-inmunizacion-explican-por-que-unas-personas-sufren-mas-efectos-secundarios-que-otras","status":"publish","type":"post","link":"https:\/\/noti-america.com\/site\/argentina\/2026\/10\/12\/bacterias-del-intestino-previas-a-la-inmunizacion-explican-por-que-unas-personas-sufren-mas-efectos-secundarios-que-otras\/","title":{"rendered":"Bacterias del intestino previas a la inmunizaci\u00f3n explican por qu\u00e9 unas personas sufr\u00ean m\u00e1s efectos secundarios que otras"},"content":{"rendered":"<p>NOTI-AMERICA.COM | ARGENTINA<\/p>\n<p style=\"text-align: justify\">Las caracter\u00edsticas de la microbiota intestinal previas a la inmunizaci\u00f3n podr\u00edan determinar por qu\u00e9 determinados individuos experimentan fiebre y una reacci\u00f3n inflamatoria m\u00e1s pronunciada tras ser vacunados, seg\u00fan revel\u00f3 un estudio internacional publicado en la revista\u00a0Science.<\/p>\n<p style=\"text-align: justify\">La investigaci\u00f3n, liderada por expertos del Instituto Max-Planck de Biolog\u00eda en Alemania, junto con el Instituto Pasteur y el Inserm de Francia, analiz\u00f3 el perfil biol\u00f3gico de adultos j\u00f3venes sanos inmunizados contra el SARS-CoV-2.<\/p>\n<p style=\"text-align: justify\">Los an\u00e1lisis de muestras de sangr\u00eb y hec\u00ebs revelaron diferencias significativas en la composici\u00f3n bacteriana de quienes manifestaron una respuesta febril m\u00e1s severa. En estos casos, la microbiota previa mostraba una mayor expresi\u00f3n de genes vinculados a la producci\u00f3n de flagelos, estructuras compuestas por flagelina, una prote\u00edna que el sistema inmunol\u00f3gico reconoce como un factor de alert\u00e2 capaz de desencadenar procesos inflamatorios.<\/p>\n<p style=\"text-align: justify\">Para comprobar la incidencia directa del entorno intestinal en dicha respuesta, los cient\u00edficos trasplantaron muestras fecal\u00ebs de los participantes a modelos murinos germ-free antes de aplicar la dosis.<\/p>\n<p style=\"text-align: justify\">Los resultados confirmaron que el microbioma preexistente acondiciona el estado inflamatorio basal del organismo, modulando de forma posterior la intensidad de la respuesta inmune frente a los biol\u00f3gicos.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NOTI-AMERICA.COM | ARGENTINA Las caracter\u00edsticas de la microbiota intestinal previas a la inmunizaci\u00f3n podr\u00edan determinar por qu\u00e9 determinados individuos experimentan fiebre y una reacci\u00f3n inflamatoria m\u00e1s pronunciada tras ser vacunados, seg\u00fan revel\u00f3 un estudio&#46;&#46;&#46;<\/p>\n","protected":false},"author":133,"featured_media":17998,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"twitter_242054905_242054905":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[13],"tags":[],"class_list":["post-17997","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-vida-y-salud","post_format-post-format-image"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"robots\" 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