{"id":4724,"date":"2025-03-04T09:22:05","date_gmt":"2025-03-04T09:22:05","guid":{"rendered":"https:\/\/www.lifepronutrition.com\/blog\/?p=4724"},"modified":"2025-03-07T09:57:21","modified_gmt":"2025-03-07T09:57:21","slug":"que-es-la-melatonina-y-por-que-es-relevante","status":"publish","type":"post","link":"https:\/\/www.lifepronutrition.com\/blog\/descanso\/que-es-la-melatonina-y-por-que-es-relevante\/","title":{"rendered":"\u00bfQu\u00e9 es la melatonina y por qu\u00e9 es relevante?\u00a0"},"content":{"rendered":"<p>Si alguna vez te has planteado <a href=\"https:\/\/www.lifepronutrition.com\/es\/#d1f4\/fullscreen\/m=and&amp;q=mela\"><strong>mejorar<\/strong> tu <strong>descanso nocturno<\/strong><\/a>, seguro que te has cruzado con la melatonina. A diferencia de otros f\u00e1rmacos hipn\u00f3ticos, esta hormona ha ganado inter\u00e9s por actuar como un \u201caviso biol\u00f3gico\u201d que ayuda a conciliar el sue\u00f1o de forma m\u00e1s natural, sin forzar un estado de sedaci\u00f3n. Adem\u00e1s, se le atribuyen funciones antioxidantes, la capacidad de modular la respuesta inmunitaria y la participaci\u00f3n en varios procesos hormonales. Sin embargo, su rol m\u00e1s reconocido sigue siendo el de sincronizar el reloj biol\u00f3gico que regula los periodos de actividad y de reposo.<\/p>\n<h2><strong>C\u00f3mo regula nuestro sue\u00f1o: el papel del ciclo luz-oscuridad:\u00a0<\/strong><\/h2>\n<p>La <strong>melatonina<\/strong> es producida por la <strong>gl\u00e1ndula pineal,<\/strong> un peque\u00f1o \u00f3rgano situado en lo profundo del cerebro. All\u00ed, el amino\u00e1cido tript\u00f3fano se convierte en serotonina y, finalmente, en melatonina.<\/p>\n<p>Este proceso se ve influido de manera clara por la luz ambiental: al anochecer y en ambientes oscuros, la producci\u00f3n de melatonina aumenta para se\u00f1alarle al organismo que es hora de descansar. Al amanecer, con la exposici\u00f3n a la luz, la secreci\u00f3n desciende con rapidez, facilitando la activaci\u00f3n y la vigilia.<\/p>\n<h2><strong>El engranaje circadiano: un reloj de 24 horas :<\/strong><\/h2>\n<p>Nuestro organismo funciona con un<strong> ciclo diario<\/strong> \u2014conocido como ritmo circadiano\u2014 de aproximadamente 24 horas. Este \u201creloj interno\u201d regula la temperatura corporal, la secreci\u00f3n de hormonas y el patr\u00f3n de sue\u00f1o-vigilia. Como comentamos l\u00edneas arriba, en condiciones normales de oscuridad, la secreci\u00f3n de melatonina alcanza su pico hacia las 2 o 3 de la madrugada, para luego descender al m\u00ednimo cuando percibimos la luz diurna.<\/p>\n<p>Este patr\u00f3n explica fen\u00f3menos como el jet lag. Cuando volamos entre husos horarios distantes, nuestro cerebro sigue secretando melatonina seg\u00fan el horario anterior, y el cuerpo tarde d\u00edas en reajustarse a la nueva hora local. Lo mismo sucede en trabajadores con turnos rotativos o nocturnos: su gl\u00e1ndula pineal recibe se\u00f1ales lum\u00ednicas fuera de sincron\u00eda y no sabe si debe secretar melatonina o inhibirla. Tomar melatonina ex\u00f3gena puede servir de \u201creseteo\u201d para alinear el ambiente (luz y oscuridad) con el ritmo biol\u00f3gico interno.<\/p>\n<h2><strong>Melatonina de liberaci\u00f3n inmediata vs. liberaci\u00f3n sostenida:<\/strong><\/h2>\n<p>En el mercado actual, la melatonina est\u00e1 disponible en distintas formulaciones, siendo las m\u00e1s comunes la de <strong>liberaci\u00f3n inmediata <\/strong>y la de <strong>liberaci\u00f3n sostenida<\/strong>.<\/p>\n<ul>\n<li><strong>Liberaci\u00f3n inmediata<\/strong>: eleva los niveles sangu\u00edneos de melatonina al poco tiempo de ingerirse (en torno a 30\u201360 minutos). Sirve de apoyo principal a quienes tardan mucho en conciliar el sue\u00f1o, ya que imita el repunte nocturno de melatonina. Sin embargo, su efecto suele decaer con relativa rapidez, pues la vida media de la hormona es corta.<\/li>\n<li><strong>Liberaci\u00f3n sostenida<\/strong>: tambi\u00e9n llamada de liberaci\u00f3n prolongada, busca imitar la secreci\u00f3n fisiol\u00f3gica de la noche liberando melatonina de forma escalonada durante varias horas. As\u00ed, mantiene una concentraci\u00f3n m\u00e1s estable y duradera, ofreciendo un soporte para quienes se despiertan varias veces o tienen problemas para mantener el sue\u00f1o. Adem\u00e1s, los estudios se\u00f1alan que su uso puede ser especialmente valioso en adultos mayores, en quienes la producci\u00f3n end\u00f3gena de melatonina disminuye con la edad. Este formato proporciona una liberaci\u00f3n m\u00e1s lenta a lo largo de la noche y se asocia a una menor probabilidad de que aparezcan despertares en la segunda mitad del ciclo de sue\u00f1o.<\/li>\n<\/ul>\n<table width=\"335\">\n<tbody>\n<tr>\n<td><strong>Par\u00e1metro<\/strong><\/td>\n<td><strong>Liberaci\u00f3n inmediata<\/strong><\/td>\n<td><strong>Liberaci\u00f3n prolongada<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Tiempo al pico (Tmax)<\/td>\n<td>0.6\u20130.75 horas<\/td>\n<td>1.5\u20132 horas<\/td>\n<\/tr>\n<tr>\n<td>Vida media (t1\u20442)<\/td>\n<td>0.5\u20131 hora<\/td>\n<td>1.6\u20132 horas<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Concentraci\u00f3n m\u00e1xima (Cmax)<\/td>\n<td>13,120 pg\/mL (4 mg)<\/td>\n<td>7,581 pg\/mL (4 mg)<\/td>\n<\/tr>\n<tr>\n<td>Duraci\u00f3n del efecto<\/td>\n<td>2\u20134 horas<\/td>\n<td>6\u20138 horas<\/td>\n<\/tr>\n<tr>\n<td>Aplicaciones cl\u00ednicas<\/td>\n<td>Inducci\u00f3n del sue\u00f1o<\/td>\n<td>Mantenimiento del sue\u00f1o,<br \/>\ntrastornos circadianos complejos<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Figura 1. Diferencias entre niveles en plasma de melatonina inmediata versus liberaci\u00f3n sostenida (Mun, J. et al 2024)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4730 size-full\" src=\"https:\/\/www.lifepronutrition.com\/blog\/wp-content\/uploads\/2025\/03\/melatonina-ciclo-.png\" alt=\"Ciclo de la melatonina\" width=\"759\" height=\"435\" srcset=\"https:\/\/www.lifepronutrition.com\/blog\/wp-content\/uploads\/2025\/03\/melatonina-ciclo-.png 759w, https:\/\/www.lifepronutrition.com\/blog\/wp-content\/uploads\/2025\/03\/melatonina-ciclo--300x172.png 300w\" sizes=\"auto, (max-width: 759px) 100vw, 759px\" \/><\/p>\n<p>La idea de una f\u00f3rmula h\u00edbrida surge de la idea de obtener el beneficio de la farmacocin\u00e9tica de ambos.<\/p>\n<p>Una fase inicial r\u00e1pida que proporcionar\u00eda un <strong>pico r\u00e1pido <\/strong>(~0.6 h), ideal para reducir la latencia del sue\u00f1o en personas con dificultad para conciliarlo Y una fase sostenida prolongada. que mantendr\u00eda niveles &gt;300 pg\/mL durante <strong>6 h<\/strong>, imitando la secreci\u00f3n end\u00f3gena nocturna y previniendo despertares.<\/p>\n<h2>\u00bfQu\u00e9 m\u00e1s hace la melatonina? M\u00e1s all\u00e1 del sue\u00f1o<\/h2>\n<p>Aunque su rol en la regulaci\u00f3n del sue\u00f1o es el m\u00e1s reconocido, la melatonina act\u00faa como una mol\u00e9cula <strong>multifuncional <\/strong>con implicaciones en m\u00faltiples sistemas del organismo. Su capacidad antioxidante destaca como uno de sus atributos m\u00e1s valiosos: neutraliza radicales libres y reduce el estr\u00e9s oxidativo, un mecanismo clave en el envejecimiento y el desarrollo de enfermedades cr\u00f3nicas.<\/p>\n<p><strong>A nivel cardiovascular<\/strong>, protege el endotelio vascular (la capa interna de los vasos sangu\u00edneos) al combatir la inflamaci\u00f3n y la oxidaci\u00f3n de l\u00edpidos, factores asociados a la aterosclerosis y la hipertensi\u00f3n. Estudios sugieren que su uso podr\u00eda mejorar la funci\u00f3n arterial y reducir el riesgo de<\/p>\n<p>eventos cardiovasculares, especialmente en personas con alteraciones metab\u00f3licas o expuestas a estr\u00e9s oxidativo cr\u00f3nico.<\/p>\n<p>En el \u00e1mbito de la <strong>fertilidad<\/strong>, la melatonina emerge como un aliado para la salud reproductiva. En hombres, mitiga el da\u00f1o oxidativo en los espermatozoides, mejorando su movilidad y calidad. \u00d1P En mujeres, protege los ovocitos durante la maduraci\u00f3n folicular, lo que podr\u00eda optimizar los resultados en tratamientos de reproducci\u00f3n asistida.<\/p>\n<p>Po \u00faltimo, no podemos olvidarnos de su acci\u00f3n sobre el <strong>sistema nervioso central<\/strong>, con una acci\u00f3n neuroprotectora prometedora. Al atravesar la barrera hematoencef\u00e1lica, defiende a las neuronas del estr\u00e9s oxidativo y modula la inflamaci\u00f3n, un proceso implicado en enfermedades neurodegenerativas como el Alzheimer y el Parkinson.<\/p>\n<h2>Conclusi\u00f3n: un apoyo valioso en el sue\u00f1o y en el ritmo circadiano<\/h2>\n<p>En definitiva, la melatonina ha ganado reconocimiento gracias a su forma de actuar, m\u00e1s pr\u00f3xima a la fisiolog\u00eda natural del sue\u00f1o que los sedantes tradicionales. Su eficacia en la correcci\u00f3n de alteraciones como jet lag, insomnio cr\u00f3nico o turnos nocturnos reside en su capacidad de reajustar el reloj biol\u00f3gico interno. Las dos presentaciones principales \u2014liberaci\u00f3n inmediata y liberaci\u00f3n sostenida\u2014 se adaptan a necesidades diferentes: la primera ayuda a conciliar el sue\u00f1o m\u00e1s r\u00e1pido, mientras que la segunda contribuye a mantener un descanso prolongado a lo largo de la noche.<\/p>\n<p>Eso s\u00ed, por m\u00e1s que la melatonina resulte \u00fatil, no sustituye unos buenos h\u00e1bitos de descanso ni la supervisi\u00f3n m\u00e9dica en casos de insomnio severo. Ajustar los horarios de sue\u00f1o, moderar la exposici\u00f3n a luz intensa en la noche y llevar un estilo de vida saludable sigue siendo la base para un buen descanso. La melatonina, ya sea en su versi\u00f3n inmediata o prolongada, suma un refuerzo extra para quienes requieren regular su ciclo circadiano y optimizar la calidad del sue\u00f1o.<\/p>\n<h2>Referencias<\/h2>\n<ol>\n<li>Del Casale, A., Arena, J. F., Giannetti, F., Minervino, A., Biggio, G., &amp; Girardi, P. (2024). The use of prolonged-release melatonin in circadian medicine: a systematic review. <em>Minerva medica<\/em>, <em>115<\/em>(2), 125\u2013142. https:\/\/doi.org\/10.23736\/S0026-4806.24.09303-0<\/li>\n<li>Mun, J. G., Wang, D., Doerflein Fulk, D. L., Fakhary, M., Gualco, S. J., Grant, R. W., &amp; Mitmesser, S. H. (2024). A Randomized, Double-Blind, Crossover Study to Investigate the Pharmacokinetics of Extended-Release Melatonin Compared to Immediate-Release Melatonin in Healthy Adults. <em>Journal of dietary supplements<\/em>, <em>21<\/em>(2), 182\u2013194. https:\/\/doi.org\/10.1080\/19390211.2023.2206475<\/li>\n<li>Lemoine, P., Garfinkel, D., Laudon, M., Nir, T., &amp; Zisapel, N. (2011). Prolonged-release melatonin for insomnia &#8211; an open-label long-term study of efficacy, safety, and withdrawal. <em>Therapeutics and clinical risk management<\/em>, <em>7<\/em>, 301\u2013311. https:\/\/doi.org\/10.2147\/TCRM.S23036<\/li>\n<li>Dalton, E. J., Rotondi, D., Levitan, R. D., Kennedy, S. H., &amp; Brown, G. M. (2000). Use of slow release melatonin in treatment-resistant depression. <em>Journal of psychiatry &amp; neuroscience : JPN<\/em>, <em>25<\/em>(1), 48\u201352.<\/li>\n<\/ol>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;4724&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;36&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4.1&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Valora el articulo&quot;,&quot;legend&quot;:&quot;4.1\\\/5 - (36 votos)&quot;,&quot;size&quot;:&quot;22&quot;,&quot;width&quot;:&quot;108.2&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 108.2px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 17.6px;\">\n            4.1\/5 - (36 votos)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Si alguna vez te has planteado mejorar tu descanso nocturno, seguro que te has cruzado con la melatonina. A diferencia de otros f\u00e1rmacos hipn\u00f3ticos, esta hormona ha ganado inter\u00e9s por actuar como un \u201caviso biol\u00f3gico\u201d &#8230; <a title=\"\u00bfQu\u00e9 es la melatonina y por qu\u00e9 es relevante?\u00a0\" class=\"read-more\" href=\"https:\/\/www.lifepronutrition.com\/blog\/descanso\/que-es-la-melatonina-y-por-que-es-relevante\/\" aria-label=\"M\u00e1s en \u00bfQu\u00e9 es la melatonina y por qu\u00e9 es relevante?\u00a0\">Leer m\u00e1s<\/a><\/p>\n","protected":false},"author":5,"featured_media":4729,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wprm-recipe-roundup-name":"","wprm-recipe-roundup-description":"","footnotes":""},"categories":[5],"tags":[],"ppma_author":[368],"class_list":["post-4724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-descanso","masonry-post","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00bfQu\u00e9 es la melatonina y por qu\u00e9 es relevante?\u00a0 - Blog Life Pro Nutrition<\/title>\n<meta name=\"description\" content=\"\u00bfQu\u00e9 es la melatonina y por qu\u00e9 es relevante?\u00a0 \u2714 Aqui esta toda la informaci\u00f3n necesaria que est\u00e1s buscando.\" \/>\n<meta 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