{"id":22306,"date":"2026-07-09T05:00:49","date_gmt":"2026-07-09T08:00:49","guid":{"rendered":"https:\/\/impactocastex.com.ar\/?p=22306"},"modified":"2026-07-09T05:00:49","modified_gmt":"2026-07-09T08:00:49","slug":"un-suplemento-de-longevidad-podria-estar-basado-en-un-principio-erroneo","status":"publish","type":"post","link":"https:\/\/impactocastex.com.ar\/?p=22306","title":{"rendered":"Un suplemento de longevidad podr\u00eda estar basado en un principio err\u00f3neo"},"content":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/www.clarin.com\/img\/2026\/07\/08\/ejA49QjTu_2000x1500__1.jpg\" class=\"ff-og-image-inserted\" \/><\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>La nicotinamida adenina dinucle\u00f3tido, o NAD+, ha sido uno de los <strong>suplementos antienvejecimiento m\u00e1s populares <\/strong>durante varios a\u00f1os.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>La mol\u00e9cula es cr\u00edtica para el metabolismo celular y otros procesos biol\u00f3gicos fundamentales, y tanto los cient\u00edficos como las empresas de suplementos han afirmado que <strong>sus niveles disminuyen con la edad<\/strong>.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>La idea de que tomar un suplemento de NAD+ podr\u00eda ayudar a envejecer de forma saludable se hizo popular, a pesar de que <strong>las pruebas que demuestran un beneficio en humanos son escasas<\/strong>.<\/p>\n<\/div>\n<div class=\"sc-563699f5-0 gGKmSz\">\n<p class=\"DespieceTitle\">Suscribite a Buena Vida<\/p>\n<div>\n<p>Cada quince d\u00edas, Florencia Cunzolo te cuenta lo \u00faltimo para cuidar tu salud y sentirte bien. Registrate <a href=\"https:\/\/www.clarin.com\/newsletter\/buena-vida\">ac\u00e1<\/a>.\u00a0<\/p>\n<\/div>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Adem\u00e1s, una nueva investigaci\u00f3n sugiere que parte de la idea que contribuy\u00f3 a alimentar el floreciente mercado de estos suplementos <strong>puede ser err\u00f3nea<\/strong>. <\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p><a href=\"https:\/\/www.nature.com\/articles\/s42255-026-01537-5\" target=\"_blank\" title=\"Un estudio\" class=\"tac-player-processed\">Un estudio<\/a> publicado en <em>Nature Metabolism<\/em> demostr\u00f3 que los niveles sangu\u00edneos de NAD+ en realidad <strong>no disminuyen con la edad<\/strong>. Otro estudio reciente, que se public\u00f3 como <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2025.02.24.639825v1.full\" target=\"_blank\" title=\"documento de prepublicaci\u00f3n\" class=\"tac-player-processed\">documento de prepublicaci\u00f3n<\/a> en febrero y a\u00fan no ha sido revisado por pares, lleg\u00f3 a la misma conclusi\u00f3n.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>\u201cSe ha convertido en una especie de dogma que los niveles de NAD+ disminuyen con la edad de forma generalizada y que eso contribuye al deterioro funcional asociado a la edad\u201d, dijo Matt Kaeberlein, profesor asociado de la Universidad de Washington, quien ha estudiado el NAD+, pero no particip\u00f3 en la nueva investigaci\u00f3n. \u201cEsto deber\u00eda hacer<strong> que la gente se cuestione cu\u00e1nto de eso es real<\/strong>\u201d.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>En el estudio m\u00e1s reciente, los investigadores analizaron muestras de sangre de siete conjuntos de datos, que inclu\u00edan a m\u00e1s de 300 personas en total. Algunos de los datos comparaban adultos j\u00f3venes y mayores; otros proced\u00edan de individuos fr\u00e1giles y de atletas de \u00e9lite. El estudio demostr\u00f3 que la suplementaci\u00f3n pod\u00eda aumentar los niveles de NAD+, pero <strong>no hall\u00f3 pruebas de que disminuyeran con la edad<\/strong>.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Riekelt Houtkooper, catedr\u00e1tico de metabolismo traslacional del Centro M\u00e9dico Universitario de \u00c1msterdam, quien dirigi\u00f3 la investigaci\u00f3n, dijo que su equipo inicialmente realiz\u00f3 el estudio porque esperaba desarrollar una prueba de biomarcadores para ayudar a las personas a decidir si deb\u00edan tomar un suplemento de NAD+. Dijo que estaban <strong>\u201cmuy decepcionados con los resultados\u201d<\/strong>.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>No todos est\u00e1n desanimados por los hallazgos. Joseph Baur, profesor de fisiolog\u00eda de la Universidad de Pensilvania, quien no particip\u00f3 en la investigaci\u00f3n, dijo que aunque era valioso saber qu\u00e9 ocurre con los niveles de NAD+ en sangre, en lo que respecta a la teor\u00eda fundamental sobre el NAD+ y el envejecimiento, <strong>\u201cno creo que cambie las cosas de forma importante\u201d<\/strong>.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Esto se debe a que un pu\u00f1ado de otros estudios en humanos han descubierto que los niveles de NAD+ descienden en determinados tejidos, incluidos<strong> los m\u00fasculos y el cerebro<\/strong>, dijo Baur. (Houtkooper public\u00f3 <a href=\"https:\/\/www.nature.com\/articles\/s43587-022-00174-3\" target=\"_blank\" title=\"uno de estos estudios\" class=\"tac-player-processed\">uno de estos estudios<\/a> en 2022). Baur reconoci\u00f3, sin embargo, que esta investigaci\u00f3n es a\u00fan \u201cpreliminar\u201d.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Seg\u00fan Baur, una cuesti\u00f3n mayor es si el declive relacionado con la edad que se produce en los tejidos es suficiente para causar deterioro. Los expertos saben que unos niveles extremadamente bajos de NAD+ provocan graves problemas de salud. Pero el envejecimiento normal est\u00e1 relacionado con un descenso mucho menor: seg\u00fan algunas estimaciones, de alrededor del 30 por ciento. Y <a href=\"https:\/\/www.cell.com\/cell-metabolism\/fulltext\/S1550-4131(25)00212-8?__cf_chl_rt_tk=k8PGB0911Ex071gEygVFdprL2tYNH2POplsm2TTgE4E-1783515587-1.0.1.1-6SB4Xm3ZznCP391I4J57Prir1SHkzUVsjyXjpPmQbFY\" target=\"_blank\" title=\"un estudio\" class=\"tac-player-processed\">un estudio<\/a> publicado el a\u00f1o pasado que se realiz\u00f3 en ratones revel\u00f3 que reducir los niveles de NAD+ en el m\u00fasculo hasta en un 85 por ciento no parec\u00eda afectar su funcionamiento.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Andrew Shao, vicepresidente s\u00e9nior de asuntos reguladores y cient\u00edficos globales de Niagen Bioscience, que vende suplementos de NAD+, dijo que, para \u00e9l, el nuevo estudio<strong> \u201ccambia muy poco\u201d<\/strong>. Al igual que Baur, opina que es m\u00e1s importante la investigaci\u00f3n que demuestra que el NAD+ disminuye en los tejidos.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>La teor\u00eda de que el NAD+ disminuye con la edad surgi\u00f3 hace unos 20 a\u00f1os, dijo Kaeberlein, a partir de estudios en<strong> levaduras, gusanos y ratones<\/strong> que demostraban que aumentar los niveles de la mol\u00e9cula pod\u00eda mejorar la longevidad. <\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Pero los cient\u00edficos no pudieron estudiar si se produc\u00eda un descenso en los seres humanos hasta hace poco, porque analizar los niveles sangu\u00edneos de NAD+ es <strong>t\u00e9cnicamente muy complicado<\/strong>, a\u00f1adi\u00f3.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Sin embargo, la teor\u00eda se hizo popular y <strong>\u201csuper\u00f3 a los datos reales\u201d<\/strong>, dijo Kaeberlein. \u201cHay personas de alto nivel que escriben art\u00edculos de revisi\u00f3n, hablan en conferencias y hoy en d\u00eda salen en podcast presentando lo que yo considerar\u00eda modelos en fase inicial como si fueran hechos probados\u201d.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>\u201cY en cuanto entr\u00f3 en el \u00e1mbito de los suplementos\u201d, continu\u00f3, \u201cla necesidad de datos se esfum\u00f3, y todo se convirti\u00f3 en un ejercicio de mercadotecnia\u201d.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Shao reconoci\u00f3 que \u201cel mensaje a los consumidores y las recomendaciones difundidas por los influencers all\u00e1 fuera probablemente se han simplificado demasiado\u201d.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Y a\u00f1adi\u00f3: \u201cCuando decimos que los niveles de NAD+ disminuyen con la edad, probablemente tengamos que hacer algo de pedagog\u00eda\u201d para aclarar que lo que demuestran las pruebas es que <strong>eso ocurre en los tejidos, no en la sangre<\/strong>.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>Houtkooper no ha renunciado al potencial terap\u00e9utico del NAD+, aunque dijo que no cre\u00eda que hubiera <strong>ninguna raz\u00f3n para que las personas normales y sanas lo tomaran<\/strong> como suplemento. En lugar de centrarse en el envejecimiento general, investiga si podr\u00eda ser beneficioso para personas con enfermedades gen\u00e9ticas inusuales que afectan al metabolismo celular.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>\u201cTodav\u00eda hay muchas posibilidades en el campo del NAD+\u201d, dijo Houtkooper. Pero a\u00f1adi\u00f3: \u201cCreo que en los \u00faltimos 15 a\u00f1os, m\u00e1s o menos,<strong> se ha exagerado incre\u00edblemente<\/strong>\u201d.<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>\u00a9The New York Times<\/p>\n<\/div>\n<div class=\"sc-45461e9c-0 eqiBeF container-text text-embed \">\n<p>\u27aa\u00bfTen\u00e9s alguna duda sobre salud y bienestar que te gustar\u00eda que abordemos en notas de la secci\u00f3n? Escribinos tu consulta a <strong>buenavida@clarin.com<\/strong><\/p>\n<\/div>\n<p><strong><a href=\"https:\/\/blockads.fivefilters.org\/\">Adblock test<\/a><\/strong> <a href=\"https:\/\/blockads.fivefilters.org\/acceptable.html\">(Why?)<\/a><\/p>\n<p>\u200b\u00a0\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>La nicotinamida adenina dinucle\u00f3tido, o NAD+, ha sido uno de los suplementos antienvejecimiento m\u00e1s populares&#8230;<\/p>\n","protected":false},"author":1,"featured_media":22307,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[120],"tags":[],"class_list":["post-22306","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-salud"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Un suplemento de longevidad podr\u00eda estar basado en un principio err\u00f3neo -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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