{"id":11793,"date":"2020-10-15T05:06:00","date_gmt":"2020-10-15T08:06:00","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=11793"},"modified":"2022-11-21T09:55:34","modified_gmt":"2022-11-21T12:55:34","slug":"nobel-prize-2020-for-medicine","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/fr\/prix-nobel-2020-pour-la-medecine\/","title":{"rendered":"Prix Nobel 2020 de m\u00e9decine - D\u00e9couverte, diagnostic et traitement de l'h\u00e9patite C"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Lors de l'un des \u00e9v\u00e9nements scientifiques mondiaux de r\u00e9f\u00e9rence de l'ann\u00e9e, qui s'est tenu \u00e0 Stockholm le 5 octobre 2020, le prix Nobel de physiologie ou de m\u00e9decine a \u00e9t\u00e9 attribu\u00e9 \u00e0 un groupe de virologues et de biochimistes pour la d\u00e9couverte du virus de l'h\u00e9patite C. Harvey Alter, Michael Houghton et Charles Rice re\u00e7oivent conjointement le prix Nobel pour avoir d\u00e9couvert l'agent causal et trouv\u00e9 une voie de gu\u00e9rison de la maladie. Les membres de l'Assembl\u00e9e Nobel \u00e0 l'Institut Karolinska n'ont pu se retenir de dire que cette d\u00e9couverte est un espoir d'\u00e9radiquer l'h\u00e9patite h\u00e9matog\u00e8ne dans le monde.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lors de l'un des \u00e9v\u00e9nements scientifiques mondiaux de r\u00e9f\u00e9rence de l'ann\u00e9e, qui s'est tenu \u00e0 Stockholm le 5 octobre 2020, le prix Nobel de physiologie ou de m\u00e9decine a \u00e9t\u00e9 attribu\u00e9 \u00e0 un groupe de virologues et de biochimistes pour la d\u00e9couverte du virus de l'h\u00e9patite C. Harvey Alter, Michael Houghton et Charles Rice re\u00e7oivent conjointement le prix Nobel pour avoir d\u00e9couvert l'agent causal et trouv\u00e9 une voie de gu\u00e9rison de la maladie. Les membres de l'Assembl\u00e9e Nobel \u00e0 l'Institut Karolinska n'ont pu se retenir de dire que cette d\u00e9couverte est un espoir d'\u00e9radiquer l'h\u00e9patite h\u00e9matog\u00e8ne dans le monde.<\/span><\/p>\n<p><a href=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-11795 size-large\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1024x1024.png\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1024x1024.png 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-300x300.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-150x150.png 150w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-768x768.png 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1536x1536.png 1536w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver.png 1920w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Qu'est-ce que l'h\u00e9patite ?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Le mot h\u00e9patite tire son origine du mot grec \"Hepar\" qui d\u00e9signe le foie. L'h\u00e9patite est une condition m\u00e9dicale dans laquelle le foie d'un individu est enflamm\u00e9 en raison d'une intoxication ou d'une infection virale. L'h\u00e9patite se caract\u00e9rise par une jaunisse, une cirrhose, de la fi\u00e8vre et une hypertrophie du foie. Parmi les agents infectieux responsables de l'h\u00e9patite, le virus de l'h\u00e9patite A est transmis par l'eau contamin\u00e9e, tandis que les virus B et C sont transmis par le sang et les fluides corporels.<\/span><\/p>\n<h2><b>Comment a-t-il \u00e9t\u00e9 d\u00e9couvert ?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Apr\u00e8s la d\u00e9couverte de l'h\u00e9patite B, Alter et son \u00e9quipe ont observ\u00e9 plusieurs infections inexpliqu\u00e9es du foie et des h\u00e9patites chroniques apr\u00e8s des transfusions sanguines. Dans leurs \u00e9tudes ult\u00e9rieures, ils ont prouv\u00e9 deux faits majeurs : premi\u00e8rement, l'agent infectieux inconnu pouvait transmettre la maladie au chimpanz\u00e9 et deuxi\u00e8mement, l'agent infectieux avait les caract\u00e9ristiques d'un virus, mais pas celles de l'h\u00e9patite A ou B. La contribution d'Alter au domaine de la virologie a servi de lumi\u00e8re dans la nuit noire des cas d'infection du foie. Pourtant, le virus n'a pas \u00e9t\u00e9 identifi\u00e9, ni caract\u00e9ris\u00e9 par une quelconque famille de virus, ni class\u00e9.<\/span><\/p>\n<h2><b>Contributions pour l'identification et la voie pour l'\u00e9radication<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Compte tenu des taux \u00e9lev\u00e9s de morbidit\u00e9 et de mortalit\u00e9, les chercheurs ont cherch\u00e9 pendant des ann\u00e9es \u00e0 identifier l'agent causal du virus \"inconnu\" de l'h\u00e9patite et \u00e0 le caract\u00e9riser. Apr\u00e8s avoir essay\u00e9 toutes les techniques traditionnelles et \u00e9chou\u00e9, gr\u00e2ce \u00e0 l'approche innovante de Houghton chez Chiron pharmaceuticals, ils ont pu identifier et cloner les fragments d'ADN responsables de la formation des prot\u00e9ines virales. Apr\u00e8s une pr\u00e9paration \u00e9labor\u00e9e de la biblioth\u00e8que d'ADN et la recherche du clone, Houghton et son \u00e9quipe ont finalement pu identifier la similitude avec la famille des Flaviviridae et l'ont nomm\u00e9 le virus de l'h\u00e9patite C. Leur recherche a \u00e9galement donn\u00e9 une proc\u00e9dure de test pour identifier l'agent causal avec les anticorps qui ont \u00e9t\u00e9 identifi\u00e9s.<\/span><\/p>\n<p><a href=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-11796 size-large\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1-1024x576.jpg\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1-1024x576.jpg 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1-300x169.jpg 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1-768x432.jpg 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2020\/10\/liver-1.jpg 1280w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">La preuve d\u00e9finitive que l'h\u00e9patite C pourrait \u00eatre l'unique agent responsable de l'infection du foie est le r\u00e9sultat de recherches approfondies men\u00e9es par Rice \u00e0 l'universit\u00e9 Washington de Saint-Louis. Louis. En utilisant la technologie de l'ADN recombinant, Rice et son \u00e9quipe ont g\u00e9n\u00e9r\u00e9 une variation g\u00e9nomique du virus de l'h\u00e9patite C qui ne comportait pas de s\u00e9quences inactivatrices et l'ont inject\u00e9e \u00e0 des primates. Les r\u00e9sultats ont indiqu\u00e9 que les variantes pouvaient entra\u00eener une maladie chronique du foie et refl\u00e9ter toutes les modifications pathologiques. Avec toutes les s\u00e9quences et r\u00e9gions inactivatrices nouvellement identifi\u00e9es, ils ont donn\u00e9 l'espoir de cr\u00e9er l'agent th\u00e9rapeutique appropri\u00e9 contre le virus de l'h\u00e9patite C.<\/span><\/p>\n<h2><b>Impact de la d\u00e9couverte<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Le monde est devenu un front de guerre avec la pand\u00e9mie de COVID-19. Avec la d\u00e9couverte de m\u00e9dicaments antiviraux, ses diagnostics et ses d\u00e9couvertes en mati\u00e8re d'identification, l'h\u00e9patite C et les r\u00e9alisations connexes constituent des avanc\u00e9es remarquables dans le domaine de la virologie et de la m\u00e9decine. L'Organisation mondiale de la sant\u00e9 s'est fix\u00e9 pour objectif d'\u00e9radiquer le virus de l'h\u00e9patite C d'ici dix ans. Ces d\u00e9couvertes sont les tremplins vers cet objectif. Cependant, il reste des d\u00e9fis \u00e0 relever et un vaccin n'a pas encore \u00e9t\u00e9 mis au point, mais une lueur d'espoir est arriv\u00e9e sous la forme de r\u00e9gimes de d\u00e9tection et de traitement pour combattre la maladie.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L'\u00e9quipe de Mind the Graph f\u00e9licite le trio de scientifiques, les universit\u00e9s et leurs groupes pour leur r\u00e9ussite ! Des d\u00e9cennies de recherche et de travail acharn\u00e9 ont donn\u00e9 \u00e0 l'humanit\u00e9 une nouvelle voie pour vaincre une maladie virale mortelle.<\/span><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":4,"featured_media":11817,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Nobel Prize in Medicine 2020 - Diagnosis and Cure of Hepatitis C<\/title>\n<meta name=\"description\" content=\"The recent findings in Hepatitis C have been acclaimed for the Nobel Prize in 2020 in Chemistry. 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He has a Ph.D. and solid scientific background in Psychopharmacology and experience as a Guest Researcher at the Max Planck Institute of Psychiatry (Germany) and Researcher in D'Or Institute for Research and Education (IDOR, Brazil). Fabricio holds over 2500 citations in Google Scholar. He has 10 years of experience in small innovative businesses, with relevant experience in product design and innovation management. 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