{"id":193160,"date":"2026-02-25T12:47:34","date_gmt":"2026-02-25T16:47:34","guid":{"rendered":"https:\/\/infoelnuevonorte.com\/?p=193160"},"modified":"2026-02-25T12:47:35","modified_gmt":"2026-02-25T16:47:35","slug":"unos-biomarcadores-en-la-sangre-podrian-anticipar-problemas-de-salud-a-corto-plazo","status":"publish","type":"post","link":"https:\/\/infoelnuevonorte.com\/?p=193160","title":{"rendered":"Unos biomarcadores en la sangre podr\u00edan anticipar problemas de salud a corto plazo"},"content":{"rendered":"<!--[if lt IE 9]><script>document.createElement('audio');<\/script><![endif]-->\n<audio class=\"wp-audio-shortcode\" id=\"audio-193160-1\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/mpeg\" src=\"https:\/\/infoelnuevonorte.com\/wp-content\/uploads\/2026\/02\/ttsmaker-vip-file-2026-2-25-12-46-30.mp3?_=1\" \/><a href=\"https:\/\/infoelnuevonorte.com\/wp-content\/uploads\/2026\/02\/ttsmaker-vip-file-2026-2-25-12-46-30.mp3\">https:\/\/infoelnuevonorte.com\/wp-content\/uploads\/2026\/02\/ttsmaker-vip-file-2026-2-25-12-46-30.mp3<\/a><\/audio>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">A medida que envejecemos es m\u00e1s dif\u00edcil saber qui\u00e9n tendr\u00e1 a\u00f1os saludables y qui\u00e9n tiene m\u00e1s riesgo de sufrir un\u00a0<strong>deterioro grave<\/strong>, pero un estudio ha descubierto unas mol\u00e9culas en el torrente sangu\u00edneo que podr\u00edan ayudar a predecir la probabilidad de\u00a0<strong>supervivencia<\/strong>\u00a0a corto plazo.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">La investigaci\u00f3n liderada por\u00a0<strong>Duke Health<\/strong>\u00a0(Estados Unidos) y hecha en colaboraci\u00f3n con la Universidad de Minnesota (Estados Unidos) ha comprobado que unas peque\u00f1as mol\u00e9culas de ARN conocidas como\u00a0<strong>piRNAs<\/strong>\u00a0pueden utilizarse como biomarcador del estado de salud y ayudarnos a predecir la probabilidad de que un anciano sobreviva al menos en los dos a\u00f1os siguientes.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los autores creen que estos resultados -publicados este mi\u00e9rcoles en la revista\u00a0<strong>Aging Cell<\/strong>&#8211; sugieren que, en el futuro, un simple\u00a0<strong>an\u00e1lisis de sangre<\/strong>\u00a0podr\u00eda ayudar a identificar riesgos de\u00a0<strong>supervivencia<\/strong>\u00a0de forma temprana y orientar estrategias de tratamiento para promover un\u00a0<strong>envejecimiento saludable<\/strong>.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los\u00a0<strong>piRNAs<\/strong>\u00a0son mol\u00e9culas del ADN encargadas de vigilar el genoma para evitar que haya mutaciones, regular el sistema inmune y reparar los tejidos.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">El equipo midi\u00f3 los\u00a0<strong>piRNAs<\/strong>\u00a0en\u00a0<strong>muestras de sangre<\/strong>\u00a0de adultos de 71 a\u00f1os o m\u00e1s y descubri\u00f3 que tener niveles m\u00e1s bajos de ciertos\u00a0<strong>piRNAs<\/strong>\u00a0estaba fuertemente relacionado con una\u00a0<strong>supervivencia<\/strong>\u00a0m\u00e1s prolongada.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">\"La combinaci\u00f3n de solo unos pocos\u00a0<strong>piRNAs<\/strong>\u00a0fue el predictor m\u00e1s fuerte de\u00a0<strong>supervivencia<\/strong>\u00a0a dos a\u00f1os en\u00a0<strong>adultos mayores<\/strong>; m\u00e1s fuerte que la edad, los h\u00e1bitos de estilo de vida o cualquier otra medida de salud que examinamos\", subraya\u00a0<strong>Virginia Byers Kraus<\/strong>, autora principal del estudio y profesora en los departamentos de Medicina, Patolog\u00eda y Cirug\u00eda Ortop\u00e9dica de Duke.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">\"Lo que m\u00e1s nos sorprendi\u00f3 fue que esta se\u00f1al tan potente proviniera de un simple\u00a0<strong>an\u00e1lisis de sangre<\/strong>\", a\u00f1ade.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span style=\"font-size: 14pt;\"><strong>Metodolog\u00eda<\/strong>\u00a0e\u00a0<strong>Inteligencia Artificial<\/strong><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Durante el estudio, el equipo utiliz\u00f3\u00a0<strong>inteligencia artificial<\/strong>\u00a0causal y\u00a0<strong>aprendizaje autom\u00e1tico<\/strong>\u00a0(machine learning) para analizar 187\u00a0<strong>factores cl\u00ednicos<\/strong>\u00a0y 828 tipos diferentes de ARN peque\u00f1os en m\u00e1s de 1.200\u00a0<strong>muestras de sangre<\/strong>.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los resultados de\u00a0<strong>supervivencia<\/strong>\u00a0se determinaron vinculando a los\u00a0<strong>participantes<\/strong>\u00a0con los\u00a0<strong>registros nacionales<\/strong>\u00a0de mortalidad.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">El estudio estad\u00edstico mostr\u00f3 que un grupo de tan solo seis\u00a0<strong>piRNAs<\/strong>\u00a0pod\u00eda predecir la\u00a0<strong>supervivencia<\/strong>\u00a0a dos a\u00f1os con una precisi\u00f3n de hasta el 86%. Adem\u00e1s, los investigadores confirmaron estos hallazgos en un segundo\u00a0<strong>grupo independiente<\/strong> de ancianos.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los\u00a0<strong>participantes<\/strong>\u00a0que vivieron m\u00e1s tiempo presentaban consistentemente niveles m\u00e1s bajos de\u00a0<strong>piRNAs<\/strong>\u00a0espec\u00edficos, algo que ya se hab\u00eda observado en\u00a0<strong>organismos simples<\/strong>, apunta el estudio.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">\"Sabemos muy poco sobre los\u00a0<strong>piRNAs<\/strong> en la sangre, pero lo que estamos viendo es que tener niveles m\u00e1s bajos de algunos espec\u00edficos es mejor\" y cuando estas mol\u00e9culas est\u00e1n presentes en cantidades m\u00e1s altas \"puede ser una se\u00f1al de que algo en el organismo va por mal camino\", advierte Kraus.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Para predecir la\u00a0<strong>supervivencia<\/strong>\u00a0a corto plazo, los\u00a0<strong>piRNAs<\/strong>\u00a0fueron m\u00e1s efectivos que factores como la edad, el colesterol, la actividad f\u00edsica y m\u00e1s de 180 medidas cl\u00ednicas adicionales, mientras que para anticipar la\u00a0<strong>supervivencia<\/strong>\u00a0a largo plazo, aunque los factores del estilo de vida ganaron peso, los\u00a0<strong>piRNAs<\/strong>\u00a0siguieron aportando informaci\u00f3n valiosa sobre la biolog\u00eda subyacente, subraya el estudio.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 14pt;\">Los pr\u00f3ximos pasos del equipo incluyen estudiar si los\u00a0<strong>tratamientos<\/strong>, cambios en el estilo de vida o medicamentos \u2014incluyendo las nuevas terapias basadas en GLP-1\u2014 podr\u00edan alterar los niveles de piRNA, con el objetivo final de mejorar la salud a medida que envejecemos.\u00a0<\/span><\/p>\n\n\n<div 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La investigaci\u00f3n liderada por\u00a0Duke Health\u00a0(Estados Unidos) y hecha en colaboraci\u00f3n con la Universidad [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":193162,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Unos biomarcadores en la sangre podr\u00edan anticipar problemas de salud a corto plazo | El Nuevo Norte<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infoelnuevonorte.com\/?p=193160\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Unos biomarcadores en la sangre podr\u00edan anticipar problemas de salud a corto plazo | El Nuevo Norte\" \/>\n<meta property=\"og:description\" content=\"A medida que envejecemos es m\u00e1s dif\u00edcil saber qui\u00e9n tendr\u00e1 a\u00f1os saludables y qui\u00e9n tiene m\u00e1s riesgo de sufrir un\u00a0deterioro grave, pero un estudio ha descubierto unas mol\u00e9culas en el torrente sangu\u00edneo que podr\u00edan ayudar a predecir la probabilidad de\u00a0supervivencia\u00a0a corto plazo. 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