{"id":850,"date":"2025-09-30T16:49:05","date_gmt":"2025-09-30T14:49:05","guid":{"rendered":"https:\/\/www.genoscreen.fr\/comment-prouver-l-efficacite-d-un-probiotique-ou-postbiotique-grace-a-la-genomique\/"},"modified":"2026-05-27T17:38:21","modified_gmt":"2026-05-27T15:38:21","slug":"comment-prouver-l-efficacite-d-un-probiotique-ou-postbiotique-grace-a-la-genomique","status":"publish","type":"post","link":"https:\/\/www.genoscreen.fr\/fr\/actualites\/comment-prouver-l-efficacite-d-un-probiotique-ou-postbiotique-grace-a-la-genomique\/","title":{"rendered":"Comment prouver l\u2019efficacit\u00e9 d\u2019un probiotique ou postbiotique gr\u00e2ce \u00e0 la g\u00e9nomique ?"},"content":{"rendered":"

 Les biotiques <\/b>\u2014 qu\u2019ils soient pr\u00e9biotiques, probiotiques ou postbiotiques \u2014 sont au c\u0153ur des strat\u00e9gies nutritionnelles et th\u00e9rapeutiques<\/b> visant \u00e0 pr\u00e9server ou restaurer l\u2019\u00e9quilibre du microbiote intestinal. Mais face \u00e0 des exigences r\u00e9glementaires croissantes (EFSA<\/a>, FDA) et \u00e0 un march\u00e9 de plus en plus comp\u00e9titif, il est indispensable de documenter leur efficacit\u00e9 avec des donn\u00e9es scientifiques robustes.<\/p>\n

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En quoi l’\u00e9tude du microbiote est-elle essentielle pour d\u00e9velopper un biotique ?<\/h3>\n

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Un biotique est d\u00e9fini par sa capacit\u00e9 \u00e0 interagir avec le microbiote et l\u2019h\u00f4te<\/b>. \u00c9tudier le microbiote permet :<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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– D\u2019identifier des souches candidates<\/b> (probiotiques issus de microbiotes sains)
– De valider des effets cibles<\/b> (r\u00e9tablissement de la diversit\u00e9, activation de fonctions b\u00e9n\u00e9fiques)
– De documenter scientifiquement les b\u00e9n\u00e9fices d\u2019un produit<\/b>, en lien avec les exigences des autorit\u00e9s r\u00e9glementaires<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Comment prouver l’efficacit\u00e9 d’un probiotique ?<\/h3>\n

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L\u2019efficacit\u00e9 d\u2019un probiotique s\u2019\u00e9value \u00e0 deux niveaux :<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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– Cliniquement<\/strong>, via des effets mesurables chez les sujets (digestion, immunit\u00e9, inflammation, etc.)<\/p>\n

– Biologiquement<\/strong>, via des analyses du microbiote montrant une modification structurelle ou fonctionnelle apr\u00e8s administration<\/p>\n

Les approches de m\u00e9tag\u00e9nomique cibl\u00e9e ou globale<\/strong> (solutions First-Res et Full Reveal<\/a>) permettent de mettre en \u00e9vidence ces modifications dans des \u00e9tudes in vitro, in vivo ou cliniques. <\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Comment mesurer l’impact d’un biotique sur le microbiote intestinal ?<\/h3>\n

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L\u2019impact peut \u00eatre mesur\u00e9 par :<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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– Une analyse des esp\u00e8ces microbiennes pr\u00e9sentes<\/strong> (composition du microbiote)<\/p>\n

– L\u2019\u00e9tude des g\u00e8nes et fonctions associ\u00e9s<\/strong> (ex. : production d\u2019AGCC, r\u00e9gulation de l\u2019inflammation)<\/p>\n

Ces donn\u00e9es sont obtenues via la m\u00e9tag\u00e9nomique<\/strong> pour les esp\u00e8ces et les fonctions cod\u00e9es, et via la m\u00e9tatranscriptomique pour les fonctions r\u00e9ellement exprim\u00e9es (solution Activ\u2019Reveal<\/a>).<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Peut-on suivre sp\u00e9cifiquement une souche probiotique dans un \u00e9cosyst\u00e8me complexe ?<\/h3>\n

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Oui, gr\u00e2ce \u00e0 des outils cibl\u00e9s comme la qPCR sp\u00e9cifique<\/strong> (solution iQuant<\/a>), on peut :<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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– D\u00e9tecter une souche d\u2019int\u00e9r\u00eat<\/strong> dans un microbiote complexe<\/p>\n

– Quantifier<\/strong> son abondance<\/p>\n

– Distinguer cellules vivantes et mortes<\/strong> (par traitement PMA)<\/p>\n

C\u2019est indispensable pour v\u00e9rifier la persistance d\u2019un probiotique dans le microbiote, ou pour des contr\u00f4les qualit\u00e9 dans le produit fini.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

 <\/p>\n\n","protected":false},"excerpt":{"rendered":"

 Les biotiques \u2014 qu\u2019ils soient pr\u00e9biotiques, probiotiques ou postbiotiques \u2014 sont au c\u0153ur des strat\u00e9gies nutritionnelles et th\u00e9rapeutiques visant \u00e0 pr\u00e9server ou restaurer l\u2019\u00e9quilibre du microbiote intestinal. Mais face \u00e0 des exigences r\u00e9glementaires croissantes (EFSA, FDA) et \u00e0 un march\u00e9 de plus en plus comp\u00e9titif, il est indispensable de documenter leur efficacit\u00e9 avec des donn\u00e9es […]<\/p>\n","protected":false},"author":1,"featured_media":1383,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-850","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"yoast_head":"\nComment prouver l\u2019efficacit\u00e9 d\u2019un probiotique ou postbiotique gr\u00e2ce \u00e0 la g\u00e9nomique ? - GenoScreen<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez comment GenoScreen utilise la g\u00e9nomique et la m\u00e9tag\u00e9nomique pour prouver scientifiquement l\u2019efficacit\u00e9 des probiotiques et postbiotiques. 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