{"id":758,"date":"2026-05-27T06:36:59","date_gmt":"2026-05-27T06:36:59","guid":{"rendered":"https:\/\/senopeptide.com\/?p=758"},"modified":"2026-05-27T08:04:38","modified_gmt":"2026-05-27T08:04:38","slug":"son-peptidos-esteroides","status":"publish","type":"post","link":"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/","title":{"rendered":"\u00bfLos p\u00e9ptidos son esteroides?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_vs_Steroids_Explained_Simply\" >P\u00e9ptidos vs Esteroides Explicados de Forma Sencilla<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Brielf_Overview\" >Brielf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#The_Short_Answer\" >La respuesta breve<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#No_%E2%80%94_peptides_are_not_steroids\" >No, los p\u00e9ptidos no son esteroides.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#entirely_different_molecular_families\" >familias moleculares completamente diferentes.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#What_Are_Peptides\" >\u00bfQu\u00e9 son los p\u00e9ptidos?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#amino_acids\" >amino\u00e1cidos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#peptide_bonds\" >enlaces pept\u00eddicos<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#What_Are_Steroids\" >\u00bfQu\u00e9 son los esteroides?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#cholesterol-like_ring_structures\" >estructuras anulares similares al colesterol.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#The_Biggest_Difference\" >La mayor diferencia<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_are\" >Los p\u00e9ptidos lo son:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroids_are\" >Los esteroides lo son:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Analogy\" >Analog\u00eda<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_People_Confuse_Peptides_and_Steroids\" >Por qu\u00e9 la gente confunde p\u00e9ptidos y esteroides<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_vs_Steroids_Molecular_Structure\" >P\u00e9ptidos frente a esteroides: Estructura molecular<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides\" >P\u00e9ptidos<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptide_Structure\" >Estructura del p\u00e9ptido<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroids\" >Esteroides<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroid_Structure\" >Estructura de los esteroides<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_Structure_Changes_Everything\" >Por qu\u00e9 la estructura lo cambia todo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_vs_Steroids_How_They_Work\" >P\u00e9ptidos vs Esteroides: C\u00f3mo funcionan<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides-2\" >P\u00e9ptidos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroids-2\" >Esteroides<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Analogy-2\" >Analog\u00eda<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_are_like\" >Los p\u00e9ptidos son como:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroids_are_more_like\" >Los esteroides son m\u00e1s bien:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_Steroids_Often_Have_Longer_Effects\" >Por qu\u00e9 los esteroides suelen tener efectos m\u00e1s prolongados<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_Peptides_Often_Act_Faster\" >Por qu\u00e9 los p\u00e9ptidos suelen actuar m\u00e1s r\u00e1pido<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_vs_Steroids_Manufacturing\" >P\u00e9ptidos frente a esteroides: Fabricaci\u00f3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptide_Manufacturing\" >Fabricaci\u00f3n de p\u00e9ptidos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Solid-Phase_Peptide_Synthesis_SPPS\" >S\u00edntesis de p\u00e9ptidos en fase s\u00f3lida (SPPS)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroid_Manufacturing\" >Fabricaci\u00f3n de esteroides<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_Peptides_Are_More_Fragile\" >Por qu\u00e9 los p\u00e9ptidos son m\u00e1s fr\u00e1giles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_Steroids_Are_Often_More_Stable\" >Por qu\u00e9 los esteroides suelen ser m\u00e1s estables<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_vs_Steroids_in_Biological_Systems\" >P\u00e9ptidos frente a esteroides en sistemas biol\u00f3gicos<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides-3\" >P\u00e9ptidos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroids-3\" >Esteroides<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#What_Most_Articles_Fail_to_Explain\" >Lo que la mayor\u00eda de los art\u00edculos no explican<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#communication_architecture\" >arquitectura de comunicaci\u00f3n.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_Communication_Signals\" >P\u00e9ptidos = Se\u00f1ales de comunicaci\u00f3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Steroids_Regulatory_Controllers\" >Esteroides = Reguladores<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Simple_Analogy\" >Analog\u00eda simple<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-44\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_Researchers_Study_Both\" >Por qu\u00e9 los investigadores estudian ambas cosas<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-45\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#peptides\" >p\u00e9ptidos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-46\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#steroids\" >esteroides<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-47\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Are_Any_Hormones_Peptides\" >\u00bfHay p\u00e9ptidos hormonales?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-48\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Important_Clarification\" >Aclaraci\u00f3n importante<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-49\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Hormones_are_a_function_category\" >Las hormonas son una categor\u00eda de funci\u00f3n.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-50\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Peptides_and_steroids_are_chemistry_categories\" >Los p\u00e9ptidos y los esteroides son categor\u00edas qu\u00edmicas.<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-51\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Examples\" >Ejemplos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-52\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_This_Matters_in_Research\" >Por qu\u00e9 es importante para la investigaci\u00f3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-53\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Scientific_Perspective\" >Perspectiva cient\u00edfica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-54\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Summary\" >Resumen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-55\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#FAQ\" >PREGUNTAS FRECUENTES<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-56\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Are_peptides_considered_steroids\" >\u00bfLos p\u00e9ptidos se consideran esteroides?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-57\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#What_are_peptides_made_of\" >\u00bfDe qu\u00e9 est\u00e1n hechos los p\u00e9ptidos?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-58\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#What_are_steroids_made_of\" >\u00bfDe qu\u00e9 est\u00e1n hechos los esteroides?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-59\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Do_peptides_enter_cells_directly_like_steroids\" >\u00bfLos p\u00e9ptidos entran directamente en las c\u00e9lulas como los esteroides?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-60\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#Why_are_peptides_more_fragile_than_steroids\" >\u00bfPor qu\u00e9 los p\u00e9ptidos son m\u00e1s fr\u00e1giles que los esteroides?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-61\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/#References\" >Referencias<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 data-section-id=\"16rib9b\" data-start=\"27\" data-end=\"69\"><span class=\"ez-toc-section\" id=\"Peptides_vs_Steroids_Explained_Simply\"><\/span>P\u00e9ptidos vs Esteroides Explicados de Forma Sencilla<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"70\" data-end=\"129\"><em data-start=\"70\" data-end=\"129\">Una perspectiva de biolog\u00eda molecular y se\u00f1alizaci\u00f3n bioqu\u00edmica<\/em><\/p>\n<hr data-start=\"131\" data-end=\"134\" \/>\n<h2 data-section-id=\"ul0zg4\" data-start=\"136\" data-end=\"154\"><span class=\"ez-toc-section\" id=\"Brielf_Overview\"><\/span>Brielf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<blockquote>\n<p data-start=\"156\" data-end=\"714\"><a href=\"https:\/\/senopeptide.com\/es\/products\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Productos de p\u00e9ptidos de grado de investigaci\u00f3n SENO al por mayor en el extranjero\">P\u00e9ptidos<\/a> y los esteroides son tipos de mol\u00e9culas biol\u00f3gicas completamente diferentes. Los p\u00e9ptidos son cadenas cortas de amino\u00e1cidos unidas por enlaces pept\u00eddicos, mientras que los esteroides son mol\u00e9culas lip\u00eddicas derivadas de estructuras de colesterol. Los p\u00e9ptidos act\u00faan principalmente a trav\u00e9s de la se\u00f1alizaci\u00f3n de receptores en las superficies celulares, mientras que los esteroides suelen penetrar directamente en las c\u00e9lulas e influir en la expresi\u00f3n g\u00e9nica dentro del n\u00facleo. Aunque ambos participan en los sistemas de se\u00f1alizaci\u00f3n biol\u00f3gica, su qu\u00edmica, m\u00e9todos de producci\u00f3n, comportamiento de transporte y mecanismos moleculares son fundamentalmente diferentes.<\/p>\n<\/blockquote>\n<p data-start=\"156\" data-end=\"714\">LO \u00daLTIMO\u00a0<a href=\"https:\/\/senopeptide.com\/es\/lista-de-precios-y-productos-de-peptidos-de-investigacion-mas-recientes\/\">LISTA DE PRODUCTOS Y PRECIOS<\/a><\/p>\n<hr data-start=\"716\" data-end=\"719\" \/>\n<h2 data-section-id=\"1nbyhjl\" data-start=\"721\" data-end=\"739\"><span class=\"ez-toc-section\" id=\"The_Short_Answer\"><\/span>La respuesta breve<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"13ix5km\" data-start=\"741\" data-end=\"775\"><span class=\"ez-toc-section\" id=\"No_%E2%80%94_peptides_are_not_steroids\"><\/span>No, los p\u00e9ptidos no son esteroides.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"777\" data-end=\"822\">Este es uno de los mayores errores de concepto:<\/p>\n<ul data-start=\"823\" data-end=\"883\">\n<li data-section-id=\"vp8uyt\" data-start=\"823\" data-end=\"840\">ciencia de los p\u00e9ptidos<\/li>\n<li data-section-id=\"mj2uoy\" data-start=\"841\" data-end=\"860\">biolog\u00eda endocrina<\/li>\n<li data-section-id=\"1ap9qb5\" data-start=\"861\" data-end=\"883\">investigaci\u00f3n bioqu\u00edmica<\/li>\n<\/ul>\n<p data-start=\"885\" data-end=\"962\">La confusi\u00f3n se produce porque:<br \/>\npueden participar tanto los p\u00e9ptidos como los esteroides:<\/p>\n<ul data-start=\"963\" data-end=\"1049\">\n<li data-section-id=\"64sltz\" data-start=\"963\" data-end=\"983\">v\u00edas de se\u00f1alizaci\u00f3n<\/li>\n<li data-section-id=\"1sjidd9\" data-start=\"984\" data-end=\"1003\">sistemas endocrinos<\/li>\n<li data-section-id=\"12m7819\" data-start=\"1004\" data-end=\"1023\">regulaci\u00f3n del crecimiento<\/li>\n<li data-section-id=\"1ahw97i\" data-start=\"1024\" data-end=\"1049\">comunicaci\u00f3n metab\u00f3lica<\/li>\n<\/ul>\n<p data-start=\"1051\" data-end=\"1082\">Pero qu\u00edmicamente,<br \/>\na los que pertenecen:<\/p>\n<h3 data-section-id=\"1ecl4a0\" data-start=\"1083\" data-end=\"1124\"><span class=\"ez-toc-section\" id=\"entirely_different_molecular_families\"><\/span>familias moleculares completamente diferentes.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<hr data-start=\"1126\" data-end=\"1129\" \/>\n<h2 data-section-id=\"15sdo7j\" data-start=\"1131\" data-end=\"1151\"><span class=\"ez-toc-section\" id=\"What_Are_Peptides\"><\/span>\u00bfQu\u00e9 son los p\u00e9ptidos?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1153\" data-end=\"1166\">Los p\u00e9ptidos lo son:<\/p>\n<ul data-start=\"1167\" data-end=\"1193\">\n<li data-section-id=\"y239dt\" data-start=\"1167\" data-end=\"1193\">cadenas cortas de amino\u00e1cidos.<\/li>\n<\/ul>\n<p data-start=\"1195\" data-end=\"1215\">Se construyen a partir de:<\/p>\n<h3 data-section-id=\"9c5wzh\" data-start=\"1216\" data-end=\"1230\"><span class=\"ez-toc-section\" id=\"amino_acids\"><\/span>amino\u00e1cidos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1232\" data-end=\"1250\">conectado a trav\u00e9s de:<\/p>\n<h3 data-section-id=\"1edgwfc\" data-start=\"1251\" data-end=\"1267\"><span class=\"ez-toc-section\" id=\"peptide_bonds\"><\/span>enlaces pept\u00eddicos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1269\" data-end=\"1306\"><span class=\"inline-block align-middle\"><span class=\"katex\"><span class=\"katex-mathml\">Amino\u00e1cido+Amino\u00e1cido\u2192P\u00e9ptidoAmino\u00e1cido + Amino\u00e1cido + P\u00e9ptido de flecha recta<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">min<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">c<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mbin\">+<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">min<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">c<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mrel\">\u2192<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">P<\/span><span class=\"mord mathnormal\">e<\/span><span class=\"mord mathnormal\">pt<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mord mathnormal\">e<\/span><\/span><\/span><\/span><\/span><\/p>\n<hr data-start=\"1308\" data-end=\"1311\" \/>\n<h2 data-section-id=\"15n8mf8\" data-start=\"1313\" data-end=\"1333\"><span class=\"ez-toc-section\" id=\"What_Are_Steroids\"><\/span>\u00bfQu\u00e9 son los esteroides?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1335\" data-end=\"1348\">Los esteroides lo son:<\/p>\n<ul data-start=\"1349\" data-end=\"1374\">\n<li data-section-id=\"wzle6v\" data-start=\"1349\" data-end=\"1374\">mol\u00e9culas derivadas de l\u00edpidos<\/li>\n<\/ul>\n<p data-start=\"1376\" data-end=\"1387\">construido a partir de:<\/p>\n<h3 data-section-id=\"lc878n\" data-start=\"1388\" data-end=\"1424\"><span class=\"ez-toc-section\" id=\"cholesterol-like_ring_structures\"><\/span>estructuras anulares similares al colesterol.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1426\" data-end=\"1456\">Su estructura central contiene:<\/p>\n<ul data-start=\"1457\" data-end=\"1483\">\n<li data-section-id=\"7a6ztn\" data-start=\"1457\" data-end=\"1483\">cuatro anillos de carbono fusionados.<\/li>\n<\/ul>\n<p data-start=\"1485\" data-end=\"1522\"><span class=\"inline-block align-middle\"><span class=\"katex\"><span class=\"katex-mathml\">N\u00facleo de esteroides = 4 anillos de carbono fusionadosN\u00facleo de esteroides = 4 anillos de carbono fusionados<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">San<\/span><span class=\"mord mathnormal\">ero<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">mineral<\/span><span class=\"mrel\">=<\/span><\/span><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">F<\/span><span class=\"mord mathnormal\">u<\/span><span class=\"mord mathnormal\">Se<\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">C<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mord mathnormal\">r<\/span><span class=\"mord mathnormal\">b<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mord mathnormal\">n<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">R<\/span><span class=\"mord mathnormal\">en<\/span><span class=\"mord mathnormal\">g<\/span><span class=\"mord mathnormal\">s<\/span><\/span><\/span><\/span><\/span><\/p>\n<hr data-start=\"1524\" data-end=\"1527\" \/>\n<h2 data-section-id=\"11vdkqp\" data-start=\"1529\" data-end=\"1553\"><span class=\"ez-toc-section\" id=\"The_Biggest_Difference\"><\/span>La mayor diferencia<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"fgn5qn\" data-start=\"1555\" data-end=\"1566\"><span class=\"ez-toc-section\" id=\"Peptides_are\"><\/span>Los p\u00e9ptidos lo son:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"1572\" data-end=\"1607\">\n<li data-section-id=\"rhrqo2\" data-start=\"1572\" data-end=\"1607\">mol\u00e9culas de se\u00f1alizaci\u00f3n similares a las prote\u00ednas.<\/li>\n<\/ul>\n<h3 data-section-id=\"1w0gvac\" data-start=\"1609\" data-end=\"1620\"><span class=\"ez-toc-section\" id=\"Steroids_are\"><\/span>Los esteroides lo son:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-start=\"1626\" data-end=\"1655\">\n<li data-section-id=\"1c7h8yp\" data-start=\"1626\" data-end=\"1655\">hormonas lip\u00eddicas liposolubles.<\/li>\n<\/ul>\n<hr data-start=\"1657\" data-end=\"1660\" \/>\n<h2 data-section-id=\"2a1ahn\" data-start=\"1662\" data-end=\"1678\"><span class=\"ez-toc-section\" id=\"Analogy\"><\/span>Analog\u00eda<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1680\" data-end=\"1707\">Un p\u00e9ptido es algo as\u00ed como:<\/p>\n<ul data-start=\"1708\" data-end=\"1744\">\n<li data-section-id=\"11vbr00\" data-start=\"1708\" data-end=\"1744\">un mensaje digital hecho de palabras.<\/li>\n<\/ul>\n<p data-start=\"1746\" data-end=\"1769\">Un esteroide es m\u00e1s bien:<\/p>\n<ul data-start=\"1770\" data-end=\"1836\">\n<li data-section-id=\"bbi6tz\" data-start=\"1770\" data-end=\"1836\">una llave maestra a base de aceite que entra f\u00edsicamente en las salas restringidas.<\/li>\n<\/ul>\n<p data-start=\"1838\" data-end=\"1906\">Ambos transmiten informaci\u00f3n,<br \/>\npero a trav\u00e9s de sistemas completamente distintos.<\/p>\n<hr data-start=\"1908\" data-end=\"1911\" \/>\n<h2 data-section-id=\"6piysk\" data-start=\"1913\" data-end=\"1955\"><span class=\"ez-toc-section\" id=\"Why_People_Confuse_Peptides_and_Steroids\"><\/span>Por qu\u00e9 la gente confunde p\u00e9ptidos y esteroides<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1957\" data-end=\"1989\">Muchos sistemas biol\u00f3gicos se solapan.<\/p>\n<p data-start=\"1991\" data-end=\"2003\">Por ejemplo:<\/p>\n<ul data-start=\"2004\" data-end=\"2127\">\n<li data-section-id=\"o4sz4d\" data-start=\"2004\" data-end=\"2044\">ambos pueden influir en la se\u00f1alizaci\u00f3n endocrina<\/li>\n<li data-section-id=\"1r31v69\" data-start=\"2045\" data-end=\"2086\">ambos pueden interactuar con las v\u00edas hormonales<\/li>\n<li data-section-id=\"wqfax2\" data-start=\"2087\" data-end=\"2127\">ambos pueden afectar a la coordinaci\u00f3n metab\u00f3lica<\/li>\n<\/ul>\n<p data-start=\"2129\" data-end=\"2139\">Pero su:<\/p>\n<ul data-start=\"2140\" data-end=\"2236\">\n<li data-section-id=\"1ml6mmm\" data-start=\"2140\" data-end=\"2151\">qu\u00edmica<\/li>\n<li data-section-id=\"1qrgxyk\" data-start=\"2152\" data-end=\"2171\">comportamiento del receptor<\/li>\n<li data-section-id=\"1ql7lct\" data-start=\"2172\" data-end=\"2191\">sistemas de transporte<\/li>\n<li data-section-id=\"uutijo\" data-start=\"2192\" data-end=\"2236\">m\u00e9todos de producci\u00f3n<br \/>\nson completamente diferentes.<\/li>\n<\/ul>\n<hr data-start=\"2238\" data-end=\"2241\" \/>\n<h2 data-section-id=\"1xyny5h\" data-start=\"2243\" data-end=\"2286\"><span class=\"ez-toc-section\" id=\"Peptides_vs_Steroids_Molecular_Structure\"><\/span>P\u00e9ptidos frente a esteroides: Estructura molecular<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"fgn5qn\" data-start=\"2288\" data-end=\"2299\"><span class=\"ez-toc-section\" id=\"Peptides\"><\/span>P\u00e9ptidos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"2301\" data-end=\"2311\">Hecho de:<\/p>\n<ul data-start=\"2312\" data-end=\"2326\">\n<li data-section-id=\"1l4vzpa\" data-start=\"2312\" data-end=\"2326\">amino\u00e1cidos.<\/li>\n<\/ul>\n<p data-start=\"2328\" data-end=\"2337\">Ejemplos:<\/p>\n<ul data-start=\"2338\" data-end=\"2376\">\n<li data-section-id=\"eqjz5n\" data-start=\"2338\" data-end=\"2347\">glicina<\/li>\n<li data-section-id=\"168mkss\" data-start=\"2348\" data-end=\"2356\">lisina<\/li>\n<li data-section-id=\"1p42a7l\" data-start=\"2357\" data-end=\"2365\">valina<\/li>\n<li data-section-id=\"xmh309\" data-start=\"2366\" data-end=\"2376\">arginina<\/li>\n<\/ul>\n<hr data-start=\"2378\" data-end=\"2381\" \/>\n<h2 data-section-id=\"1ln1yyy\" data-start=\"2383\" data-end=\"2402\"><span class=\"ez-toc-section\" id=\"Peptide_Structure\"><\/span>Estructura del p\u00e9ptido<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2404\" data-end=\"2422\">Los p\u00e9ptidos se parecen:<\/p>\n<ul data-start=\"2423\" data-end=\"2468\">\n<li data-section-id=\"1bff67q\" data-start=\"2423\" data-end=\"2431\">cadenas<\/li>\n<li data-section-id=\"1lnh43y\" data-start=\"2432\" data-end=\"2441\">cadenas<\/li>\n<li data-section-id=\"1qm97vi\" data-start=\"2442\" data-end=\"2468\">cables moleculares plegados.<\/li>\n<\/ul>\n<hr data-start=\"2470\" data-end=\"2473\" \/>\n<h3 data-section-id=\"1w0gvac\" data-start=\"2475\" data-end=\"2486\"><span class=\"ez-toc-section\" id=\"Steroids\"><\/span>Esteroides<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"2488\" data-end=\"2499\">Construido a partir de:<\/p>\n<ul data-start=\"2500\" data-end=\"2538\">\n<li data-section-id=\"y8tuuq\" data-start=\"2500\" data-end=\"2538\">esqueletos lip\u00eddicos derivados del colesterol.<\/li>\n<\/ul>\n<p data-start=\"2540\" data-end=\"2549\">Ejemplos:<\/p>\n<ul data-start=\"2550\" data-end=\"2586\">\n<li data-section-id=\"jx0fmt\" data-start=\"2550\" data-end=\"2564\">testosterona<\/li>\n<li data-section-id=\"etrpqz\" data-start=\"2565\" data-end=\"2575\">estr\u00f3geno<\/li>\n<li data-section-id=\"1wyydjv\" data-start=\"2576\" data-end=\"2586\">cortisol<\/li>\n<\/ul>\n<hr data-start=\"2588\" data-end=\"2591\" \/>\n<h2 data-section-id=\"zase4h\" data-start=\"2593\" data-end=\"2612\"><span class=\"ez-toc-section\" id=\"Steroid_Structure\"><\/span>Estructura de los esteroides<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2614\" data-end=\"2632\">Los esteroides se parecen:<\/p>\n<ul data-start=\"2633\" data-end=\"2664\">\n<li data-section-id=\"1mnavfd\" data-start=\"2633\" data-end=\"2664\">estructuras r\u00edgidas de anillos de carbono.<\/li>\n<\/ul>\n<hr data-start=\"2666\" data-end=\"2669\" \/>\n<h2 data-section-id=\"18f1rup\" data-start=\"2671\" data-end=\"2705\"><span class=\"ez-toc-section\" id=\"Why_Structure_Changes_Everything\"><\/span>Por qu\u00e9 la estructura lo cambia todo<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"2707\" data-end=\"2738\">La estructura molecular determina:<\/p>\n<ul data-start=\"2739\" data-end=\"2843\">\n<li data-section-id=\"h24lfy\" data-start=\"2739\" data-end=\"2751\">solubilidad<\/li>\n<li data-section-id=\"1x1u6mj\" data-start=\"2752\" data-end=\"2763\">transporte<\/li>\n<li data-section-id=\"1y4cp0a\" data-start=\"2764\" data-end=\"2786\">interacci\u00f3n con el receptor<\/li>\n<li data-section-id=\"16wup48\" data-start=\"2787\" data-end=\"2807\">duraci\u00f3n de la se\u00f1alizaci\u00f3n<\/li>\n<li data-section-id=\"1jaomn7\" data-start=\"2808\" data-end=\"2820\">metabolismo<\/li>\n<li data-section-id=\"1sb5poo\" data-start=\"2821\" data-end=\"2843\">comportamiento de degradaci\u00f3n<\/li>\n<\/ul>\n<hr data-start=\"2845\" data-end=\"2848\" \/>\n<h2 data-section-id=\"le7mwz\" data-start=\"2850\" data-end=\"2887\"><span class=\"ez-toc-section\" id=\"Peptides_vs_Steroids_How_They_Work\"><\/span>P\u00e9ptidos vs Esteroides: C\u00f3mo funcionan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"fgn5qn\" data-start=\"2889\" data-end=\"2900\"><span class=\"ez-toc-section\" id=\"Peptides-2\"><\/span>P\u00e9ptidos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"2902\" data-end=\"2924\">La mayor\u00eda de los p\u00e9ptidos se unen a:<\/p>\n<ul data-start=\"2925\" data-end=\"2950\">\n<li data-section-id=\"hsukrn\" data-start=\"2925\" data-end=\"2950\">receptores de la superficie celular.<\/li>\n<\/ul>\n<p data-start=\"2952\" data-end=\"2974\">Suelen actuar como:<\/p>\n<ul data-start=\"2975\" data-end=\"3007\">\n<li data-section-id=\"1k4ktz9\" data-start=\"2975\" data-end=\"3007\">mensajeros externos de se\u00f1alizaci\u00f3n.<\/li>\n<\/ul>\n<hr data-start=\"3009\" data-end=\"3012\" \/>\n<h3><span class=\"ez-toc-section\" id=\"Steroids-2\"><\/span>Esteroides<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"3027\" data-end=\"3040\">Los esteroides lo son:<\/p>\n<ul data-start=\"3041\" data-end=\"3057\">\n<li data-section-id=\"ngxo3h\" data-start=\"3041\" data-end=\"3057\">liposoluble.<\/li>\n<\/ul>\n<p data-start=\"3059\" data-end=\"3092\">A menudo pasan directamente:<\/p>\n<ul data-start=\"3093\" data-end=\"3109\">\n<li data-section-id=\"wvtppe\" data-start=\"3093\" data-end=\"3109\">membranas celulares<\/li>\n<\/ul>\n<p data-start=\"3111\" data-end=\"3129\">e interactuar con ellos:<\/p>\n<ul data-start=\"3130\" data-end=\"3175\">\n<li data-section-id=\"83b1vj\" data-start=\"3130\" data-end=\"3155\">receptores intracelulares<\/li>\n<li data-section-id=\"huj21d\" data-start=\"3156\" data-end=\"3175\">receptores nucleares<\/li>\n<\/ul>\n<hr data-start=\"3177\" data-end=\"3180\" \/>\n<h2 data-section-id=\"2a1ahn\" data-start=\"3182\" data-end=\"3198\"><span class=\"ez-toc-section\" id=\"Analogy-2\"><\/span>Analog\u00eda<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"15gb86j\" data-start=\"55\" data-end=\"77\"><span class=\"ez-toc-section\" id=\"Peptides_are_like\"><\/span>Los p\u00e9ptidos son como:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"78\" data-end=\"124\"><strong data-start=\"78\" data-end=\"124\">tocando el timbre desde fuera de la casa.<\/strong><\/p>\n<p data-start=\"126\" data-end=\"317\">El p\u00e9ptido en s\u00ed suele permanecer fuera de la c\u00e9lula.<br data-start=\"176\" data-end=\"179\" \/>Se une a un receptor situado en la membrana celular, casi como pulsar un timbre inteligente conectado a un sistema de comunicaci\u00f3n interno.<\/p>\n<p data-start=\"319\" data-end=\"350\">Una vez pulsado el \u201ctimbre\u201d:<\/p>\n<ul data-start=\"351\" data-end=\"519\">\n<li data-section-id=\"5cva3n\" data-start=\"351\" data-end=\"393\">las se\u00f1ales se transmiten dentro de la c\u00e9lula,<\/li>\n<li data-section-id=\"dfy0me\" data-start=\"394\" data-end=\"424\">activan las prote\u00ednas mensajeras,<\/li>\n<li data-section-id=\"khrb0\" data-start=\"425\" data-end=\"452\">comienzan las cascadas de se\u00f1alizaci\u00f3n,<\/li>\n<li data-section-id=\"kc51gh\" data-start=\"453\" data-end=\"519\">y la c\u00e9lula cambia su comportamiento en funci\u00f3n del mensaje recibido.<\/li>\n<\/ul>\n<p data-start=\"521\" data-end=\"563\">En biolog\u00eda molecular, esto suele implicar:<\/p>\n<ul data-start=\"564\" data-end=\"675\">\n<li data-section-id=\"76u41o\" data-start=\"564\" data-end=\"581\">Se\u00f1alizaci\u00f3n GPCR,<\/li>\n<li data-section-id=\"evlsk9\" data-start=\"582\" data-end=\"602\">AMP c\u00edclico (AMPc),<\/li>\n<li data-section-id=\"1fqhy7f\" data-start=\"603\" data-end=\"623\">activaci\u00f3n de cinasas,<\/li>\n<li data-section-id=\"1i1hhd2\" data-start=\"624\" data-end=\"644\">se\u00f1alizaci\u00f3n de calcio,<\/li>\n<li data-section-id=\"g3tsz\" data-start=\"645\" data-end=\"675\">o v\u00edas de fosforilaci\u00f3n.<\/li>\n<\/ul>\n<p data-start=\"677\" data-end=\"763\">El p\u00e9ptido no suele entrar directamente en el n\u00facleo.<br data-start=\"733\" data-end=\"736\" \/>En su lugar, le dice a la c\u00e9lula:<\/p>\n<blockquote data-start=\"764\" data-end=\"813\">\n<p data-start=\"766\" data-end=\"813\">\u201cHa llegado un mensaje: ajuste su actividad\u201d.\u201d<\/p>\n<\/blockquote>\n<p data-start=\"815\" data-end=\"854\">Por ello, la se\u00f1alizaci\u00f3n pept\u00eddica es a menudo:<\/p>\n<ul data-start=\"855\" data-end=\"911\">\n<li data-section-id=\"1mirlwq\" data-start=\"855\" data-end=\"863\">r\u00e1pido,<\/li>\n<li data-section-id=\"1iwzfzl\" data-start=\"864\" data-end=\"875\">flexible,<\/li>\n<li data-section-id=\"1a5ehu3\" data-start=\"876\" data-end=\"888\">puls\u00e1til,<\/li>\n<li data-section-id=\"4a5kti\" data-start=\"889\" data-end=\"911\">y altamente selectivo.<\/li>\n<\/ul>\n<hr data-start=\"913\" data-end=\"916\" \/>\n<h3 data-section-id=\"kuwf05\" data-start=\"918\" data-end=\"945\"><span class=\"ez-toc-section\" id=\"Steroids_are_more_like\"><\/span>Los esteroides son m\u00e1s bien:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"946\" data-end=\"991\"><strong data-start=\"946\" data-end=\"991\">caminando directamente dentro de la sala de control.<\/strong><\/p>\n<p data-start=\"993\" data-end=\"1113\">Las mol\u00e9culas de esteroides son liposolubles, lo que significa que pueden atravesar la propia membrana celular en lugar de quedarse fuera.<\/p>\n<p data-start=\"1115\" data-end=\"1173\">En lugar de pulsar un \u201ctimbre\u201d receptor, esteroides a menudo:<\/p>\n<ul data-start=\"1174\" data-end=\"1296\">\n<li data-section-id=\"d6cx3w\" data-start=\"1174\" data-end=\"1195\">atraviesan la membrana,<\/li>\n<li data-section-id=\"1gxz9xf\" data-start=\"1196\" data-end=\"1222\">entrar en el interior de la celda,<\/li>\n<li data-section-id=\"240ueq\" data-start=\"1223\" data-end=\"1254\">se unen a receptores intracelulares,<\/li>\n<li data-section-id=\"5fxsvs\" data-start=\"1255\" data-end=\"1296\">y viajan directamente hacia el n\u00facleo.<\/li>\n<\/ul>\n<p data-start=\"1298\" data-end=\"1349\">Una vez dentro de la \u201csala de control\u201d, pueden influir:<\/p>\n<ul data-start=\"1350\" data-end=\"1455\">\n<li data-section-id=\"1n3tmeb\" data-start=\"1350\" data-end=\"1371\">transcripci\u00f3n de genes,<\/li>\n<li data-section-id=\"v8uzb0\" data-start=\"1372\" data-end=\"1393\">producci\u00f3n de prote\u00ednas,<\/li>\n<li data-section-id=\"dvxt6g\" data-start=\"1394\" data-end=\"1427\">programaci\u00f3n celular a largo plazo,<\/li>\n<li data-section-id=\"r1wgf\" data-start=\"1428\" data-end=\"1455\">y regulaci\u00f3n metab\u00f3lica.<\/li>\n<\/ul>\n<p data-start=\"1457\" data-end=\"1475\">Esto es m\u00e1s como:<\/p>\n<blockquote data-start=\"1476\" data-end=\"1561\">\n<p data-start=\"1478\" data-end=\"1561\">abrir el panel de control maestro del edificio y reescribir las instrucciones operativas.<\/p>\n<\/blockquote>\n<p data-start=\"1563\" data-end=\"1643\">Dado que los esteroides influyen en los sistemas a nivel de transcripci\u00f3n, sus efectos son a menudo:<\/p>\n<ul data-start=\"1644\" data-end=\"1707\">\n<li data-section-id=\"kv26h4\" data-start=\"1644\" data-end=\"1662\">m\u00e1s lento para empezar,<\/li>\n<li data-section-id=\"1dwidbp\" data-start=\"1663\" data-end=\"1685\">m\u00e1s profundo biol\u00f3gicamente,<\/li>\n<li data-section-id=\"162pjui\" data-start=\"1686\" data-end=\"1707\">y m\u00e1s duradera.<\/li>\n<\/ul>\n<hr data-start=\"3334\" data-end=\"3337\" \/>\n<h2 data-section-id=\"1s3ncl0\" data-start=\"3339\" data-end=\"3379\"><span class=\"ez-toc-section\" id=\"Why_Steroids_Often_Have_Longer_Effects\"><\/span>Por qu\u00e9 los esteroides suelen tener efectos m\u00e1s prolongados<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"3381\" data-end=\"3411\">Los esteroides influyen con frecuencia:<\/p>\n<ul data-start=\"3412\" data-end=\"3483\">\n<li data-section-id=\"rmc6un\" data-start=\"3412\" data-end=\"3432\">transcripci\u00f3n de genes<\/li>\n<li data-section-id=\"1cr6wfo\" data-start=\"3433\" data-end=\"3452\">se\u00f1alizaci\u00f3n nuclear<\/li>\n<li data-section-id=\"1lh0wpf\" data-start=\"3453\" data-end=\"3483\">regulaci\u00f3n de la s\u00edntesis de prote\u00ednas<\/li>\n<\/ul>\n<p data-start=\"3485\" data-end=\"3502\">Esto puede producir:<\/p>\n<ul data-start=\"3503\" data-end=\"3556\">\n<li data-section-id=\"1luzzko\" data-start=\"3503\" data-end=\"3511\">m\u00e1s lento<\/li>\n<li data-section-id=\"1avqqzv\" data-start=\"3512\" data-end=\"3520\">m\u00e1s profundo<\/li>\n<li data-section-id=\"10tpn52\" data-start=\"3521\" data-end=\"3556\">efectos de se\u00f1alizaci\u00f3n m\u00e1s duraderos.<\/li>\n<\/ul>\n<hr data-start=\"3558\" data-end=\"3561\" \/>\n<h2 data-section-id=\"5kr9h9\" data-start=\"3563\" data-end=\"3594\"><span class=\"ez-toc-section\" id=\"Why_Peptides_Often_Act_Faster\"><\/span>Por qu\u00e9 los p\u00e9ptidos suelen actuar m\u00e1s r\u00e1pido<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"3596\" data-end=\"3622\">P\u00e9ptidos com\u00fanmente desencadenantes:<\/p>\n<ul data-start=\"3623\" data-end=\"3701\">\n<li data-section-id=\"10u7y6x\" data-start=\"3623\" data-end=\"3649\">cascadas de se\u00f1alizaci\u00f3n r\u00e1pida<\/li>\n<li data-section-id=\"tjfv9w\" data-start=\"3650\" data-end=\"3671\">activaci\u00f3n del receptor<\/li>\n<li data-section-id=\"tckb7b\" data-start=\"3672\" data-end=\"3701\">sistemas secundarios de mensajer\u00eda<\/li>\n<\/ul>\n<p data-start=\"3703\" data-end=\"3724\">Sus efectos pueden ser:<\/p>\n<ul data-start=\"3725\" data-end=\"3761\">\n<li data-section-id=\"1erqgn3\" data-start=\"3725\" data-end=\"3733\">m\u00e1s r\u00e1pido<\/li>\n<li data-section-id=\"1o6abcd\" data-start=\"3734\" data-end=\"3743\">m\u00e1s corto<\/li>\n<li data-section-id=\"bggitg\" data-start=\"3744\" data-end=\"3761\">m\u00e1s pulsante<\/li>\n<\/ul>\n<hr data-start=\"3763\" data-end=\"3766\" \/>\n<h2 data-section-id=\"1njqh02\" data-start=\"3768\" data-end=\"3805\"><span class=\"ez-toc-section\" id=\"Peptides_vs_Steroids_Manufacturing\"><\/span>P\u00e9ptidos frente a esteroides: Fabricaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"13kkoos\" data-start=\"3807\" data-end=\"3831\"><span class=\"ez-toc-section\" id=\"Peptide_Manufacturing\"><\/span>Fabricaci\u00f3n de p\u00e9ptidos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"3833\" data-end=\"3869\">La mayor\u00eda de los p\u00e9ptidos se sintetizan utilizando:<\/p>\n<h3 data-section-id=\"11585ee\" data-start=\"3870\" data-end=\"3909\"><span class=\"ez-toc-section\" id=\"Solid-Phase_Peptide_Synthesis_SPPS\"><\/span>S\u00edntesis de p\u00e9ptidos en fase s\u00f3lida (SPPS)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"3911\" data-end=\"3948\"><span class=\"inline-block align-middle\"><span class=\"katex\"><span class=\"katex-mathml\">Amino\u00e1cido1\u2192Amino\u00e1cido2\u2192Amino\u00e1cido3Amino\u00e1cido_1 \\rightarrow Amino\u00e1cido_2 \\rightarrow Amino\u00e1cido_3<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">min<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">c<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">\u2192<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">min<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">c<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">2<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mrel\">\u2192<\/span><\/span><span class=\"base\"><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">min<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mspace\">\u00a0<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord mathnormal\">c<\/span><span class=\"mord mathnormal\">i<\/span><span class=\"mord\"><span class=\"mord mathnormal\">d<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">3<\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p data-start=\"3950\" data-end=\"3973\">Este proceso ensambla:<\/p>\n<ul data-start=\"3974\" data-end=\"4007\">\n<li data-section-id=\"1y6zwua\" data-start=\"3974\" data-end=\"4007\">cadenas de amino\u00e1cidos<br \/>\npaso a paso.<\/li>\n<\/ul>\n<hr data-start=\"4009\" data-end=\"4012\" \/>\n<h3 data-section-id=\"1jihpdj\" data-start=\"4014\" data-end=\"4038\"><span class=\"ez-toc-section\" id=\"Steroid_Manufacturing\"><\/span>Fabricaci\u00f3n de esteroides<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"4040\" data-end=\"4076\">La producci\u00f3n de esteroides suele implicar:<\/p>\n<ul data-start=\"4077\" data-end=\"4177\">\n<li data-section-id=\"1s1l7rx\" data-start=\"4077\" data-end=\"4095\">qu\u00edmica de los esteroles<\/li>\n<li data-section-id=\"1q4ij5i\" data-start=\"4096\" data-end=\"4110\">fermentaci\u00f3n<\/li>\n<li data-section-id=\"oj54gl\" data-start=\"4111\" data-end=\"4141\">s\u00edntesis org\u00e1nica en varios pasos<\/li>\n<li data-section-id=\"1gjkpx0\" data-start=\"4142\" data-end=\"4177\">intermediarios derivados del colesterol<\/li>\n<\/ul>\n<hr data-start=\"4179\" data-end=\"4182\" \/>\n<h2 data-section-id=\"152n9ff\" data-start=\"4184\" data-end=\"4215\"><span class=\"ez-toc-section\" id=\"Why_Peptides_Are_More_Fragile\"><\/span>Por qu\u00e9 los p\u00e9ptidos son m\u00e1s fr\u00e1giles<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"4217\" data-end=\"4254\">Los p\u00e9ptidos son qu\u00edmicamente sensibles a:<\/p>\n<ul data-start=\"4255\" data-end=\"4310\">\n<li data-section-id=\"1j34afk\" data-start=\"4255\" data-end=\"4261\">calor<\/li>\n<li data-section-id=\"1eb46ak\" data-start=\"4262\" data-end=\"4274\">hidr\u00f3lisis<\/li>\n<li data-section-id=\"1pn5kz3\" data-start=\"4275\" data-end=\"4286\">oxidaci\u00f3n<\/li>\n<li data-section-id=\"1pc0d1a\" data-start=\"4287\" data-end=\"4310\">degradaci\u00f3n enzim\u00e1tica<\/li>\n<\/ul>\n<p data-start=\"4312\" data-end=\"4342\">Por eso muchos p\u00e9ptidos lo son:<\/p>\n<ul data-start=\"4343\" data-end=\"4394\">\n<li data-section-id=\"1tgbg9p\" data-start=\"4343\" data-end=\"4356\">liofilizado<\/li>\n<li data-section-id=\"1mwle92\" data-start=\"4357\" data-end=\"4371\">refrigerado<\/li>\n<li data-section-id=\"i8ajj8\" data-start=\"4372\" data-end=\"4394\">estabilizado cuidadosamente<\/li>\n<\/ul>\n<hr data-start=\"4396\" data-end=\"4399\" \/>\n<h2 data-section-id=\"15w74ft\" data-start=\"4401\" data-end=\"4437\"><span class=\"ez-toc-section\" id=\"Why_Steroids_Are_Often_More_Stable\"><\/span>Por qu\u00e9 los esteroides suelen ser m\u00e1s estables<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"4439\" data-end=\"4452\">Los esteroides lo son:<\/p>\n<ul data-start=\"4453\" data-end=\"4487\">\n<li data-section-id=\"10jgib0\" data-start=\"4453\" data-end=\"4466\">a base de l\u00edpidos<\/li>\n<li data-section-id=\"yq1u0h\" data-start=\"4467\" data-end=\"4487\">estructuralmente r\u00edgido<\/li>\n<\/ul>\n<p data-start=\"4489\" data-end=\"4512\">que a menudo les hace:<\/p>\n<ul data-start=\"4513\" data-end=\"4553\">\n<li data-section-id=\"evdq1k\" data-start=\"4513\" data-end=\"4553\">m\u00e1s duradero qu\u00edmicamente<br \/>\nque los p\u00e9ptidos.<\/li>\n<\/ul>\n<hr data-start=\"4555\" data-end=\"4558\" \/>\n<h2 data-section-id=\"1yqltku\" data-start=\"4560\" data-end=\"4604\"><span class=\"ez-toc-section\" id=\"Peptides_vs_Steroids_in_Biological_Systems\"><\/span>P\u00e9ptidos frente a esteroides en sistemas biol\u00f3gicos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"fgn5qn\" data-start=\"4606\" data-end=\"4617\"><span class=\"ez-toc-section\" id=\"Peptides-3\"><\/span>P\u00e9ptidos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"4619\" data-end=\"4638\">Normalmente coordenadas:<\/p>\n<ul data-start=\"4639\" data-end=\"4708\">\n<li data-section-id=\"1eg733q\" data-start=\"4639\" data-end=\"4664\">comunicaci\u00f3n de se\u00f1ales<\/li>\n<li data-section-id=\"tjfv9w\" data-start=\"4665\" data-end=\"4686\">activaci\u00f3n del receptor<\/li>\n<li data-section-id=\"kai0kk\" data-start=\"4687\" data-end=\"4708\">mensajer\u00eda molecular<\/li>\n<\/ul>\n<hr data-start=\"4710\" data-end=\"4713\" \/>\n<h3 data-section-id=\"1w0gvac\" data-start=\"4715\" data-end=\"4726\"><span class=\"ez-toc-section\" id=\"Steroids-3\"><\/span>Esteroides<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"4728\" data-end=\"4747\">Normalmente coordenadas:<\/p>\n<ul data-start=\"4748\" data-end=\"4829\">\n<li data-section-id=\"1j39qfb\" data-start=\"4748\" data-end=\"4780\">se\u00f1alizaci\u00f3n reguladora a largo plazo<\/li>\n<li data-section-id=\"149stxo\" data-start=\"4781\" data-end=\"4806\">control transcripcional<\/li>\n<li data-section-id=\"1pui6sv\" data-start=\"4807\" data-end=\"4829\">regulaci\u00f3n endocrina<\/li>\n<\/ul>\n<hr data-start=\"4831\" data-end=\"4834\" \/>\n<h2 data-section-id=\"3oaw1s\" data-start=\"4836\" data-end=\"4872\"><span class=\"ez-toc-section\" id=\"What_Most_Articles_Fail_to_Explain\"><\/span>Lo que la mayor\u00eda de los art\u00edculos no explican<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"4874\" data-end=\"4928\">Muchos sitios web comparan p\u00e9ptidos y esteroides s\u00f3lo de:<\/p>\n<ul data-start=\"4929\" data-end=\"4973\">\n<li data-section-id=\"10dtct\" data-start=\"4929\" data-end=\"4946\">rendimiento<br \/>\no:<\/li>\n<li data-section-id=\"1a6wvmv\" data-start=\"4947\" data-end=\"4973\">perspectivas de aparici\u00f3n.<\/li>\n<\/ul>\n<p data-start=\"4975\" data-end=\"5023\">Pero cient\u00edficamente,<br \/>\nla diferencia importante es:<\/p>\n<h3 data-section-id=\"6dke8u\" data-start=\"5024\" data-end=\"5054\"><span class=\"ez-toc-section\" id=\"communication_architecture\"><\/span>arquitectura de comunicaci\u00f3n.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<hr data-start=\"5056\" data-end=\"5059\" \/>\n<h2 data-section-id=\"wix1h8\" data-start=\"5061\" data-end=\"5095\"><span class=\"ez-toc-section\" id=\"Peptides_Communication_Signals\"><\/span>P\u00e9ptidos = Se\u00f1ales de comunicaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5097\" data-end=\"5116\">Los p\u00e9ptidos suelen ser:<\/p>\n<ul data-start=\"5117\" data-end=\"5140\">\n<li data-section-id=\"1wqjmth\" data-start=\"5117\" data-end=\"5140\">soportes de informaci\u00f3n.<\/li>\n<\/ul>\n<p data-start=\"5142\" data-end=\"5158\">Ayudan a las c\u00e9lulas:<\/p>\n<ul data-start=\"5159\" data-end=\"5243\">\n<li data-section-id=\"1jwsdx6\" data-start=\"5159\" data-end=\"5181\">coordinar las respuestas<\/li>\n<li data-section-id=\"1691v96\" data-start=\"5182\" data-end=\"5215\">intercambio molecular instrucciones<\/li>\n<li data-section-id=\"6wjs4f\" data-start=\"5216\" data-end=\"5243\">regular el tiempo de se\u00f1alizaci\u00f3n<\/li>\n<\/ul>\n<hr data-start=\"5245\" data-end=\"5248\" \/>\n<h2 data-section-id=\"j88y5p\" data-start=\"5250\" data-end=\"5285\"><span class=\"ez-toc-section\" id=\"Steroids_Regulatory_Controllers\"><\/span>Esteroides = Reguladores<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5287\" data-end=\"5321\">Los esteroides suelen funcionar m\u00e1s como:<\/p>\n<ul data-start=\"5322\" data-end=\"5384\">\n<li data-section-id=\"5b2bu\" data-start=\"5322\" data-end=\"5357\">reguladores maestros<br \/>\nesa influencia:<\/li>\n<li data-section-id=\"c7kfx3\" data-start=\"5358\" data-end=\"5384\">programas gen\u00e9ticos completos.<\/li>\n<\/ul>\n<hr data-start=\"5386\" data-end=\"5389\" \/>\n<h2 data-section-id=\"2a1ahn\" data-start=\"5391\" data-end=\"5407\"><span class=\"ez-toc-section\" id=\"Simple_Analogy\"><\/span>Analog\u00eda simple<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5409\" data-end=\"5427\">Los p\u00e9ptidos son como:<\/p>\n<ul data-start=\"5428\" data-end=\"5472\">\n<li data-section-id=\"1dzq5pe\" data-start=\"5428\" data-end=\"5472\">env\u00edo de mensajes de texto entre departamentos.<\/li>\n<\/ul>\n<p data-start=\"5474\" data-end=\"5497\">Los esteroides son m\u00e1s bien:<\/p>\n<ul data-start=\"5498\" data-end=\"5533\">\n<li data-section-id=\"19ye4w7\" data-start=\"5498\" data-end=\"5533\">reescribir los manuales de pol\u00edtica de la empresa.<\/li>\n<\/ul>\n<hr data-start=\"5535\" data-end=\"5538\" \/>\n<h2 data-section-id=\"eumxpf\" data-start=\"5540\" data-end=\"5568\"><span class=\"ez-toc-section\" id=\"Why_Researchers_Study_Both\"><\/span>Por qu\u00e9 los investigadores estudian ambas cosas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5570\" data-end=\"5596\">Estudio de laboratorios modernos:<\/p>\n<h3 data-section-id=\"52qzlb\" data-start=\"5597\" data-end=\"5608\"><span class=\"ez-toc-section\" id=\"peptides\"><\/span>p\u00e9ptidos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"5609\" data-end=\"5613\">para:<\/p>\n<ul data-start=\"5614\" data-end=\"5689\">\n<li data-section-id=\"11pv6p0\" data-start=\"5614\" data-end=\"5636\">especificidad del receptor<\/li>\n<li data-section-id=\"1kkp0n4\" data-start=\"5637\" data-end=\"5658\">precisi\u00f3n de se\u00f1alizaci\u00f3n<\/li>\n<li data-section-id=\"1kpocbn\" data-start=\"5659\" data-end=\"5689\">ingenier\u00eda de v\u00edas espec\u00edficas<\/li>\n<\/ul>\n<p data-start=\"5691\" data-end=\"5701\">y estudiar:<\/p>\n<h3 data-section-id=\"1qnbt50\" data-start=\"5702\" data-end=\"5713\"><span class=\"ez-toc-section\" id=\"steroids\"><\/span>esteroides<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"5714\" data-end=\"5718\">para:<\/p>\n<ul data-start=\"5719\" data-end=\"5787\">\n<li data-section-id=\"1pui6sv\" data-start=\"5719\" data-end=\"5741\">regulaci\u00f3n endocrina<\/li>\n<li data-section-id=\"1cr6wfo\" data-start=\"5742\" data-end=\"5761\">se\u00f1alizaci\u00f3n nuclear<\/li>\n<li data-section-id=\"fcc8gi\" data-start=\"5762\" data-end=\"5787\">biolog\u00eda transcripcional<\/li>\n<\/ul>\n<hr data-start=\"5789\" data-end=\"5792\" \/>\n<h2 data-section-id=\"x10r7g\" data-start=\"5794\" data-end=\"5822\"><span class=\"ez-toc-section\" id=\"Are_Any_Hormones_Peptides\"><\/span>\u00bfHay p\u00e9ptidos hormonales?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"5824\" data-end=\"5828\">S\u00ed.<\/p>\n<p data-start=\"5830\" data-end=\"5865\">Algunas hormonas son hormonas pept\u00eddicas.<\/p>\n<p data-start=\"5867\" data-end=\"5884\">Algunos ejemplos son:<\/p>\n<ul data-start=\"5885\" data-end=\"5922\">\n<li data-section-id=\"24zkw2\" data-start=\"5885\" data-end=\"5894\">insulina<\/li>\n<li data-section-id=\"1lklg1e\" data-start=\"5895\" data-end=\"5905\">glucag\u00f3n<\/li>\n<li data-section-id=\"1shz8bp\" data-start=\"5906\" data-end=\"5922\">hormona del crecimiento<\/li>\n<\/ul>\n<p data-start=\"5924\" data-end=\"5946\">Pero muchas hormonas lo son:<\/p>\n<ul data-start=\"5947\" data-end=\"5972\">\n<li data-section-id=\"1mdp95q\" data-start=\"5947\" data-end=\"5972\">esteroides,<br \/>\nno p\u00e9ptidos.<\/li>\n<\/ul>\n<hr data-start=\"5974\" data-end=\"5977\" \/>\n<h1 data-section-id=\"1asrp8k\" data-start=\"5979\" data-end=\"6004\"><span class=\"ez-toc-section\" id=\"Important_Clarification\"><\/span>Aclaraci\u00f3n importante<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h3 data-section-id=\"zjven5\" data-start=\"6006\" data-end=\"6042\"><span class=\"ez-toc-section\" id=\"Hormones_are_a_function_category\"><\/span>Las hormonas son una categor\u00eda de funci\u00f3n.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3 data-section-id=\"15c3jxp\" data-start=\"6044\" data-end=\"6094\"><span class=\"ez-toc-section\" id=\"Peptides_and_steroids_are_chemistry_categories\"><\/span>Los p\u00e9ptidos y los esteroides son categor\u00edas qu\u00edmicas.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"6096\" data-end=\"6136\">Aqu\u00ed es donde muchos lectores se confunden.<\/p>\n<hr data-start=\"6138\" data-end=\"6141\" \/>\n<h2 data-section-id=\"36yu0t\" data-start=\"6143\" data-end=\"6153\"><span class=\"ez-toc-section\" id=\"Examples\"><\/span>Ejemplos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"6155\" data-end=\"6318\">\n<thead data-start=\"6155\" data-end=\"6178\">\n<tr data-start=\"6155\" data-end=\"6178\">\n<th class=\"last:pe-10\" data-start=\"6155\" data-end=\"6166\" data-col-size=\"sm\">Mol\u00e9cula<\/th>\n<th class=\"last:pe-10\" data-start=\"6166\" data-end=\"6178\" data-col-size=\"sm\">Categor\u00eda<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"6189\" data-end=\"6318\">\n<tr data-start=\"6189\" data-end=\"6218\">\n<td data-start=\"6189\" data-end=\"6199\" data-col-size=\"sm\">Insulina<\/td>\n<td data-start=\"6199\" data-end=\"6218\" data-col-size=\"sm\">hormona pept\u00eddica<\/td>\n<\/tr>\n<tr data-start=\"6219\" data-end=\"6252\">\n<td data-start=\"6219\" data-end=\"6225\" data-col-size=\"sm\">HGH<\/td>\n<td data-start=\"6225\" data-end=\"6252\" data-col-size=\"sm\">prote\u00edna\/hormona pept\u00eddica<\/td>\n<\/tr>\n<tr data-start=\"6253\" data-end=\"6287\">\n<td data-start=\"6253\" data-end=\"6268\" data-col-size=\"sm\">Testosterona<\/td>\n<td data-start=\"6268\" data-end=\"6287\" data-col-size=\"sm\">hormona esteroide<\/td>\n<\/tr>\n<tr data-start=\"6288\" data-end=\"6318\">\n<td data-start=\"6288\" data-end=\"6299\" data-col-size=\"sm\">Cortisol<\/td>\n<td data-start=\"6299\" data-end=\"6318\" data-col-size=\"sm\">hormona esteroide<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"6320\" data-end=\"6323\" \/>\n<h2 data-section-id=\"2td5c\" data-start=\"6325\" data-end=\"6355\"><span class=\"ez-toc-section\" id=\"Why_This_Matters_in_Research\"><\/span>Por qu\u00e9 es importante para la investigaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"6357\" data-end=\"6386\">El tipo de mol\u00e9cula determina:<\/p>\n<ul data-start=\"6387\" data-end=\"6495\">\n<li data-section-id=\"1y4cp0a\" data-start=\"6387\" data-end=\"6409\">interacci\u00f3n con el receptor<\/li>\n<li data-section-id=\"1hd8qjr\" data-start=\"6410\" data-end=\"6430\">comportamiento del transporte<\/li>\n<li data-section-id=\"m4uw2o\" data-start=\"6431\" data-end=\"6442\">vida media<\/li>\n<li data-section-id=\"sdjeja\" data-start=\"6443\" data-end=\"6464\">m\u00e9todos de formulaci\u00f3n<\/li>\n<li data-section-id=\"9aw8el\" data-start=\"6465\" data-end=\"6476\">estabilidad<\/li>\n<li data-section-id=\"18cymaq\" data-start=\"6477\" data-end=\"6495\">sistemas de suministro<\/li>\n<\/ul>\n<hr data-start=\"6497\" data-end=\"6500\" \/>\n<h2 data-section-id=\"hp8u91\" data-start=\"6502\" data-end=\"6532\"><span class=\"ez-toc-section\" id=\"Scientific_Perspective\"><\/span>Perspectiva cient\u00edfica<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"6534\" data-end=\"6992\">Los p\u00e9ptidos y los esteroides son sistemas moleculares fundamentalmente diferentes. Los p\u00e9ptidos son mol\u00e9culas de se\u00f1alizaci\u00f3n basadas en amino\u00e1cidos que suelen actuar a trav\u00e9s de receptores de la superficie celular, mientras que los esteroides son mol\u00e9culas lip\u00eddicas derivadas del colesterol que con frecuencia entran directamente en las c\u00e9lulas y regulan las v\u00edas de se\u00f1alizaci\u00f3n intracelular. Aunque ambos participan en la biolog\u00eda endocrina y de se\u00f1alizaci\u00f3n, su qu\u00edmica, arquitectura molecular y mecanismos de acci\u00f3n son totalmente diferentes.<\/p>\n<hr data-start=\"6994\" data-end=\"6997\" \/>\n<h2 data-section-id=\"1o3e2u7\" data-start=\"6999\" data-end=\"7015\"><span class=\"ez-toc-section\" id=\"Summary\"><\/span>Resumen<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"7017\" data-end=\"7372\">Los p\u00e9ptidos no son esteroides. Los p\u00e9ptidos son cadenas de amino\u00e1cidos dise\u00f1adas para la comunicaci\u00f3n de se\u00f1ales, mientras que los esteroides son mol\u00e9culas derivadas de l\u00edpidos construidas a partir de estructuras de anillos de colesterol. Sus funciones biol\u00f3gicas pueden coincidir en algunos sistemas endocrinos, pero su qu\u00edmica, comportamiento receptor, mecanismos de transporte y arquitectura de se\u00f1alizaci\u00f3n son completamente diferentes.<\/p>\n<hr data-start=\"7374\" data-end=\"7377\" \/>\n<h2 data-section-id=\"1mpc0g\" data-start=\"7379\" data-end=\"7384\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>PREGUNTAS FRECUENTES<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"19tfpfx\" data-start=\"7386\" data-end=\"7422\"><span class=\"ez-toc-section\" id=\"Are_peptides_considered_steroids\"><\/span>\u00bfLos p\u00e9ptidos se consideran esteroides?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"7424\" data-end=\"7485\">No. Los p\u00e9ptidos y los esteroides son categor\u00edas moleculares diferentes.<\/p>\n<hr data-start=\"7487\" data-end=\"7490\" \/>\n<h3 data-section-id=\"sufgko\" data-start=\"7492\" data-end=\"7521\"><span class=\"ez-toc-section\" id=\"What_are_peptides_made_of\"><\/span>\u00bfDe qu\u00e9 est\u00e1n hechos los p\u00e9ptidos?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"7523\" data-end=\"7546\">Los p\u00e9ptidos est\u00e1n hechos de:<\/p>\n<ul data-start=\"7547\" data-end=\"7588\">\n<li data-section-id=\"uglyyf\" data-start=\"7547\" data-end=\"7588\">amino\u00e1cidos unidos por enlaces pept\u00eddicos.<\/li>\n<\/ul>\n<hr data-start=\"7590\" data-end=\"7593\" \/>\n<h3 data-section-id=\"1cpuzvn\" data-start=\"7595\" data-end=\"7624\"><span class=\"ez-toc-section\" id=\"What_are_steroids_made_of\"><\/span>\u00bfDe qu\u00e9 est\u00e1n hechos los esteroides?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"7626\" data-end=\"7652\">Los esteroides se derivan de:<\/p>\n<ul data-start=\"7653\" data-end=\"7694\">\n<li data-section-id=\"1qzs1w2\" data-start=\"7653\" data-end=\"7694\">estructuras anulares lip\u00eddicas similares al colesterol.<\/li>\n<\/ul>\n<hr data-start=\"7696\" data-end=\"7699\" \/>\n<h3 data-section-id=\"191a8tw\" data-start=\"7701\" data-end=\"7751\"><span class=\"ez-toc-section\" id=\"Do_peptides_enter_cells_directly_like_steroids\"><\/span>\u00bfLos p\u00e9ptidos entran directamente en las c\u00e9lulas como los esteroides?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"7753\" data-end=\"7817\">Normalmente no. La mayor\u00eda de los p\u00e9ptidos se unen a receptores de la superficie celular.<\/p>\n<hr data-start=\"7819\" data-end=\"7822\" \/>\n<h3 data-section-id=\"1nh9jf9\" data-start=\"7824\" data-end=\"7871\"><span class=\"ez-toc-section\" id=\"Why_are_peptides_more_fragile_than_steroids\"><\/span>\u00bfPor qu\u00e9 los p\u00e9ptidos son m\u00e1s fr\u00e1giles que los esteroides?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"7873\" data-end=\"7918\">Debido a que los enlaces pept\u00eddicos son m\u00e1s vulnerables a:<\/p>\n<ul data-start=\"7919\" data-end=\"7962\">\n<li data-section-id=\"1j34afk\" data-start=\"7919\" data-end=\"7925\">calor<\/li>\n<li data-section-id=\"1eb46ak\" data-start=\"7926\" data-end=\"7938\">hidr\u00f3lisis<\/li>\n<li data-section-id=\"1pc0d1a\" data-start=\"7939\" data-end=\"7962\">degradaci\u00f3n enzim\u00e1tica<\/li>\n<\/ul>\n<p data-start=\"7964\" data-end=\"7999\">que las estructuras anulares r\u00edgidas de los esteroides.<\/p>\n<hr data-start=\"8001\" data-end=\"8004\" \/>\n<h2 data-section-id=\"1ue9448\" data-start=\"8006\" data-end=\"8030\"><span class=\"ez-toc-section\" id=\"References\"><\/span>Referencias<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"8032\" data-end=\"8143\">Alberts, B., Johnson, A., Lewis, J., et al. (2022). <em data-start=\"8084\" data-end=\"8115\">Biolog\u00eda molecular de la c\u00e9lula<\/em> (7\u00aa ed.). Garland Science.<\/p>\n<p data-start=\"8145\" data-end=\"8326\">Fosgerau, K., y Hoffmann, T. (2015). Terap\u00e9utica pept\u00eddica: estado actual y orientaciones futuras. <em data-start=\"8242\" data-end=\"8264\">Descubrimiento de f\u00e1rmacos hoy<\/em>, 20(1), 122\u2013128. <a class=\"decorated-link\" href=\"https:\/\/doi.org\/10.1016\/j.drudis.2014.10.003\" target=\"_new\" rel=\"noopener\" data-start=\"8282\" data-end=\"8326\">https:\/\/doi.org\/10.1016\/j.drudis.2014.10.003<\/a><\/p>\n<p data-start=\"8328\" data-end=\"8517\">Miller, W. L., &amp; Auchus, R. J. (2011). La biolog\u00eda molecular, bioqu\u00edmica y fisiolog\u00eda de la esteroidog\u00e9nesis humana. <em data-start=\"8445\" data-end=\"8464\">Revisiones endocrinas<\/em>, 32(1), 81\u2013151. <a class=\"decorated-link cursor-pointer\" href=\"https:\/\/doi.org\/10.1210\/er.2010-0013\" target=\"_new\" rel=\"noopener\" data-start=\"8481\" data-end=\"8517\">https:\/\/doi.org\/10.1210\/er.2010-0013<\/a><\/p>\n<p data-start=\"8519\" data-end=\"8556\"><span class=\"\" data-state=\"closed\"><a class=\"decorated-link\" href=\"https:\/\/doi.org\/10.1016\/j.drudis.2014.10.003?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">DOI:10.1016\/j.drudis.2014.10.003<\/a><\/span><\/p>\n<p data-start=\"8558\" data-end=\"8595\" data-is-last-node=\"\" data-is-only-node=\"\"><span class=\"\" data-state=\"closed\"><a class=\"decorated-link cursor-pointer\" href=\"http:\/\/DOI:10.1210\/er.2010-0013\" target=\"_blank\" rel=\"noopener\">DOI:10.1210\/er.2010-0013<\/a><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>P\u00e9ptidos frente a esteroides: una explicaci\u00f3n sencilla. Una perspectiva desde la biolog\u00eda molecular y la se\u00f1alizaci\u00f3n bioqu\u00edmica. Breve resumen: Los p\u00e9ptidos y los esteroides son tipos de mol\u00e9culas biol\u00f3gicas completamente diferentes. Los p\u00e9ptidos son cadenas cortas de amino\u00e1cidos unidas por enlaces pept\u00eddicos, mientras que los esteroides son mol\u00e9culas de origen lip\u00eddico derivadas de estructuras de colesterol. Los p\u00e9ptidos act\u00faan principalmente a trav\u00e9s de la se\u00f1alizaci\u00f3n de receptores en la superficie celular, mientras que los esteroides\u2026 <a title=\"\u00bfLos p\u00e9ptidos son esteroides?\" class=\"read-more\" href=\"https:\/\/senopeptide.com\/es\/are-peptides-steroids\/\" aria-label=\"M\u00e1s informaci\u00f3n sobre \u00ab\u00bfSon los p\u00e9ptidos esteroides?\u00bb.\">Leer m\u00e1s<\/a><\/p>","protected":false},"author":1,"featured_media":759,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seno-peptides-research"],"_links":{"self":[{"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/posts\/758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/comments?post=758"}],"version-history":[{"count":2,"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/posts\/758\/revisions"}],"predecessor-version":[{"id":767,"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/posts\/758\/revisions\/767"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/media\/759"}],"wp:attachment":[{"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/media?parent=758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/categories?post=758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/senopeptide.com\/es\/wp-json\/wp\/v2\/tags?post=758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}