{"id":780,"date":"2026-09-01T17:35:05","date_gmt":"2026-09-01T17:35:05","guid":{"rendered":"https:\/\/nhdbio.com\/resources\/epitalon-aedg-sequence-identity-quality-guide\/"},"modified":"2026-09-08T07:30:41","modified_gmt":"2026-09-08T07:30:41","slug":"epitalon-aedg-sequence-identity-quality-guide","status":"publish","type":"post","link":"https:\/\/nhdbio.com\/fr\/epitalon-aedg-sequence-identity-quality-guide\/","title":{"rendered":"Guide d'identit\u00e9 Epitalon\u00a0: S\u00e9quence AEDG, limite de masse et de preuve"},"content":{"rendered":"<p class=\"pim-standfirst wp-block-paragraph\">Epitalon est le t\u00e9trapeptide Ala-Glu-Asp-Gly, abr\u00e9g\u00e9 AEDG. L'identit\u00e9, la confirmation de la s\u00e9quence, la puret\u00e9 chromatographique et la teneur quantitative en peptides sont des mesures li\u00e9es mais distinctes.<\/p><div class=\"wp-block-group pim-key-takeaways\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Les preuves en un coup d'\u0153il<\/h2><ul class=\"wp-block-list\"><li>PubChem r\u00e9pertorie la s\u00e9quence AEDG, la formule C14H22N4O9 et le poids mol\u00e9culaire 390.35 g\/mol.<\/li><li>Epitalon, Epithalon et Epithalone apparaissent comme des synonymes, mais Epithalamin fait r\u00e9f\u00e9rence \u00e0 un contexte d'extrait historique diff\u00e9rent et ne doit pas \u00eatre r\u00e9duit automatiquement.<\/li><li>Un pourcentage de puret\u00e9 ne rend pas compte de l\u2019eau, des solvants r\u00e9siduels, des contre-ions ou de la teneur absolue en peptides.<\/li><\/ul><\/div><\/div><figure class=\"wp-block-image size-full pim-article-figure\"><img loading=\"lazy\" decoding=\"async\" width=\"1672\" height=\"941\" src=\"http:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/epitalon-quality.webp\" alt=\"Sc\u00e8ne de laboratoire documentaire HPLC pour un guide d&#039;identit\u00e9 Epitalon\" class=\"wp-image-764\" srcset=\"https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/epitalon-quality.webp 1672w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/epitalon-quality-300x169.webp 300w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/epitalon-quality-1024x576.webp 1024w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/epitalon-quality-768x432.webp 768w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/epitalon-quality-1536x864.webp 1536w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><figcaption class=\"wp-element-caption\">Illustration \u00e9ditoriale g\u00e9n\u00e9r\u00e9e par AI illustrant un flux de travail analytique. Il ne repr\u00e9sente pas un produit fourni, un lot lib\u00e9r\u00e9, une formulation approuv\u00e9e ou un r\u00e9sultat d'analyse.<\/figcaption><\/figure><h2 class=\"wp-block-heading\">Fiche d'identit\u00e9<\/h2><p class=\"wp-block-paragraph\">L'ordre des quatre r\u00e9sidus et la st\u00e9r\u00e9ochimie d\u00e9finissent le compos\u00e9 de r\u00e9f\u00e9rence. Un certificat doit indiquer la forme mol\u00e9culaire utilis\u00e9e pour les calculs de masse et si la quantit\u00e9 d\u00e9clar\u00e9e est telle quelle, anhydre ou contenue en peptides.<\/p><div class=\"wp-block-group pim-evidence-table\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"pim-evidence-row\"><strong>S\u00e9quence<\/strong><span>Ala-Glu-Asp-Gly \/ AEDG<\/span><\/div><div class=\"pim-evidence-row\"><strong>Formule<\/strong><span>C14H22N4O9<\/span><\/div><div class=\"pim-evidence-row\"><strong>Poids mol\u00e9culaire<\/strong><span>390.35g\/mol<\/span><\/div><div class=\"pim-evidence-row\"><strong>PubChem<\/strong><span>CID 219042<\/span><\/div><div class=\"pim-evidence-row\"><strong>V\u00e9rifications des lots de base<\/strong><span>S\u00e9quence ou masse intacte, chromatographie, base de contenu, eau, solvants r\u00e9siduels et liaison des lots<\/span><\/div><\/div><\/div><h2 class=\"wp-block-heading\">Limite analytique et de preuve<\/h2><p class=\"wp-block-paragraph\">La spectrom\u00e9trie de masse prend en charge l'identit\u00e9 mol\u00e9culaire tandis que la chromatographie estime la s\u00e9paration des principaux composants. Aucun des deux tests n'\u00e9tablit \u00e0 lui seul l'activit\u00e9 biologique, la st\u00e9rilit\u00e9, l'endotoxine, la stabilit\u00e9 ou l'ad\u00e9quation \u00e0 un syst\u00e8me exp\u00e9rimental particulier.<\/p><p class=\"wp-block-paragraph\">La copie du produit doit utiliser \u00ab \u00e9tudi\u00e9 dans des mod\u00e8les de vieillissement cellulaire et d'ovocytes de souris \u00bb. Il ne devrait pas utiliser \u00ab\u00a0prolonge la dur\u00e9e de vie\u00a0\u00bb, \u00ab\u00a0inverse le vieillissement\u00a0\u00bb ou un langage similaire sans preuves directes et contr\u00f4l\u00e9es des r\u00e9sultats humains.<\/p><h2 class=\"wp-block-heading\">R\u00e8gle \u00e9ditoriale<\/h2><p class=\"wp-block-paragraph\">Indiquez le mat\u00e9riau exact, la forme, le mod\u00e8le ou la population et le point final pris en charge par l'enregistrement cit\u00e9. Ne convertissez pas la plausibilit\u00e9 m\u00e9caniste, un r\u00e9sultat animal, une \u00e9tiquette officielle d'un m\u00e9dicament fini ou un test analytique en une all\u00e9gation concernant un lot du catalogue sans rapport.<\/p>","protected":false},"excerpt":{"rendered":"<p>Epitalon est le t\u00e9trapeptide Ala-Glu-Asp-Gly, abr\u00e9g\u00e9 AEDG. L'identit\u00e9, la confirmation de la s\u00e9quence, la puret\u00e9 chromatographique et la teneur quantitative en peptides sont des mesures li\u00e9es mais distinctes.<\/p>","protected":false},"author":1,"featured_media":764,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pim_family_ids":"327","pim_article_type":"Evidence and material-quality guide","pim_evidence_level":"PubChem identity record plus primary cell and animal studies","pim_reviewer":"Site evidence editorial team","pim_reviewed_date":"2026-09-02","pim_editorial_note":"Source-checked on 2026-09-02. Null results, sample size, model\/population limits and regulatory scope are retained. This is not medical advice, a customer case or validation of a catalog lot.","pim_review_status":"reviewed","pim_review_reason":"Primary and official sources, numerical results, null findings, limitations, product-evidence boundary and image disclosure checked for batch 4.","pim_creation_method":"This article discusses the source records listed below, with the study models and limitations stated alongside the findings. AI-assisted drafting and image generation were used. The reference list identifies the records behind this article; it is not an independent peer review or verification of a supplied catalog lot.","pim_sources":"[{\"title\":\"Epitalon and telomere length in human cell lines\",\"url\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40908429\/\",\"note\":\"Primary 2025 cell study; PMID 40908429; includes cancer and normal cell lines.\"},{\"title\":\"Epitalon in post-ovulatory aging mouse oocytes\",\"url\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/35413689\/\",\"note\":\"Primary 2022 in-vitro mouse-oocyte study; PMID 35413689.\"},{\"title\":\"PubChem Epitalon record\",\"url\":\"https:\/\/pubchem.ncbi.nlm.nih.gov\/compound\/Epitalon\",\"note\":\"Sequence, formula, molecular weight and synonyms; CID 219042.\"}]","footnotes":""},"categories":[20],"tags":[],"class_list":["post-780","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evidence-quality-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Epitalon Identity Guide: AEDG Sequence, Mass and Evidence Boundary<\/title>\n<meta name=\"description\" content=\"Epitalon is the tetrapeptide Ala-Glu-Asp-Gly, abbreviated AEDG. 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