{"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\/fi\/nobel-palkinto-2020-laaketieteelle\/","title":{"rendered":"L\u00e4\u00e4ketieteen Nobel-palkinto 2020 - C-hepatiitin l\u00f6yt\u00e4minen, diagnosointi ja parantaminen"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Tukholmassa 5. lokakuuta 2020 pidetyss\u00e4 yhdess\u00e4 vuoden maailmanlaajuisista tieteellisist\u00e4 huipputapahtumista fysiologian tai l\u00e4\u00e4ketieteen Nobel-palkinto my\u00f6nnettiin virologien ja biokemistien ryhm\u00e4lle hepatiitti C -viruksen l\u00f6yt\u00e4misest\u00e4. Harvey Alter, Michael Houghton ja Charles Rice saavat yhdess\u00e4 Nobelin palkinnon taudin aiheuttajan l\u00f6yt\u00e4misest\u00e4 ja tien l\u00f6yt\u00e4misest\u00e4 taudin parantamiseen. Karolinska-instituutin Nobel-kokouksen j\u00e4senet eiv\u00e4t voineet pid\u00e4tell\u00e4 sanojaan, joiden mukaan t\u00e4m\u00e4 l\u00f6yt\u00f6 on toivo veren kautta syntyv\u00e4n hepatiitin h\u00e4vitt\u00e4misest\u00e4 maailmasta.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tukholmassa 5. lokakuuta 2020 pidetyss\u00e4 yhdess\u00e4 vuoden maailmanlaajuisista tieteellisist\u00e4 huipputapahtumista fysiologian tai l\u00e4\u00e4ketieteen Nobel-palkinto my\u00f6nnettiin virologien ja biokemistien ryhm\u00e4lle hepatiitti C -viruksen l\u00f6yt\u00e4misest\u00e4. Harvey Alter, Michael Houghton ja Charles Rice saavat yhdess\u00e4 Nobelin palkinnon taudin aiheuttajan l\u00f6yt\u00e4misest\u00e4 ja tien l\u00f6yt\u00e4misest\u00e4 taudin parantamiseen. Karolinska-instituutin Nobel-kokouksen j\u00e4senet eiv\u00e4t voineet pid\u00e4tell\u00e4 sanojaan, joiden mukaan t\u00e4m\u00e4 l\u00f6yt\u00f6 on toivo veren kautta syntyv\u00e4n hepatiitin h\u00e4vitt\u00e4misest\u00e4 maailmasta.<\/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>Mik\u00e4 on hepatiitti?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Sana hepatiitti on per\u00e4isin kreikan kielen sanasta \"Hepar\", joka viittaa maksaan. Hepatiitti on sairaus, jossa yksil\u00f6n maksa on tulehtunut joko myrkytyksen tai virusinfektion vuoksi. Hepatiittitaudille on ominaista keltaisuus, kirroosi, kuume ja maksan laajentuminen. Hepatiitin aiheuttajista A-hepatiittivirus tarttuu saastuneen veden v\u00e4lityksell\u00e4, kun taas B- ja C-virus tarttuvat veren ja ruumiinnesteiden v\u00e4lityksell\u00e4.<\/span><\/p>\n<h2><b>Miten se l\u00f6ydettiin?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">B-hepatiitin l\u00f6ydytty\u00e4 Alter ja h\u00e4nen tutkimusryhm\u00e4ns\u00e4 olivat havainneet useita selitt\u00e4m\u00e4tt\u00f6mi\u00e4 maksatulehduksia ja kroonisia hepatiitteja verensiirron j\u00e4lkeen. My\u00f6hemmiss\u00e4 tutkimuksissaan he todistivat kaksi t\u00e4rke\u00e4\u00e4 tosiasiaa: ensinn\u00e4kin tuntematon tartunnanaiheuttaja pystyi siirt\u00e4m\u00e4\u00e4n taudin simpanssiin ja toiseksi tartunnanaiheuttajalla oli viruksen ominaispiirteit\u00e4, mutta ei hepatiitti A:n tai B:n kaltaisia. Alterin panos virologian alalla toimi valona maksatulehdustapausten pime\u00e4ss\u00e4 myrskyisess\u00e4 y\u00f6ss\u00e4. Virusta ei kuitenkaan tunnistettu, sit\u00e4 ei luonnehdittu mihink\u00e4\u00e4n virusperheeseen eik\u00e4 luokiteltu.<\/span><\/p>\n<h2><b>Osallistuminen tunnistamiseen ja h\u00e4vitt\u00e4mispolkuihin<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Koska sairastuvuus ja kuolleisuus ovat korkeat, tutkijat ovat vuosien mittaan halunneet tunnistaa ja luonnehtia \"tuntemattoman\" hepatiitin kaltaisen viruksen aiheuttajan. Kun he olivat kokeilleet kaikkia perinteisi\u00e4 tekniikoita ja ep\u00e4onnistuneet, he pystyiv\u00e4t Chiron Pharmaceuticalsin Houghtonin innovatiivisen l\u00e4hestymistavan avulla tunnistamaan ja kloonaamaan DNA-fragmentteja, jotka ovat vastuussa virusproteiinin muodostumisesta. Huolellisen DNA-kirjaston valmistuksen ja kloonin etsimisen j\u00e4lkeen Houghton ja h\u00e4nen ryhm\u00e4ns\u00e4 pystyiv\u00e4t lopulta tunnistamaan sen samankaltaisuuden Flaviviridae-heimon kanssa ja nimesiv\u00e4t sen hepatiitti C -virukseksi. Heid\u00e4n tutkimuksensa antoi my\u00f6s testimenettelyn aiheuttajan tunnistamiseksi tunnistettujen vasta-aineiden avulla.<\/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;\">Lopullinen todiste siit\u00e4, ett\u00e4 C-hepatiitti voi olla ainoa maksatulehduksen aiheuttaja, saatiin Washingtonin yliopistossa St. Louisissa toimivan Ricen laajan tutkimuksen tuloksena. Rice ja h\u00e4nen tutkimusryhm\u00e4ns\u00e4 tuottivat rekombinantti-DNA-tekniikkaa k\u00e4ytt\u00e4en C-hepatiittiviruksen genomivariaation, jossa ei ollut inaktivoivia sekvenssej\u00e4, ja ruiskuttivat sen k\u00e4dellisiin. Tulokset osoittivat, ett\u00e4 variantit voivat johtaa krooniseen maksasairauteen ja heijastivat kaikkia patologisia muutoksia. Kaikkien \u00e4skett\u00e4in tunnistettujen sekvenssien ja inaktivoivien alueiden ansiosta he antoivat toivoa oikean terapeuttisen aineen luomisesta hepatiitti C -virusta vastaan.<\/span><\/p>\n<h2><b>L\u00f6yd\u00f6n vaikutus<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Maailmasta on tullut sotarintama COVID-19-pandemian vuoksi. C-hepatiitti ja siihen liittyv\u00e4t saavutukset ovat virusl\u00e4\u00e4kkeiden, diagnostiikan ja tunnistusl\u00f6yd\u00f6sten ansiosta merkitt\u00e4vi\u00e4 askeleita virologian ja l\u00e4\u00e4ketieteen alalla. Maailman terveysj\u00e4rjest\u00f6 on asettanut tavoitteeksi hepatiitti C -viruksen h\u00e4vitt\u00e4misen kymmenen vuoden kuluessa. N\u00e4m\u00e4 l\u00f6yd\u00f6t ovat askelmerkkej\u00e4 kohti t\u00e4t\u00e4 tavoitetta. Haasteita on kuitenkin viel\u00e4 voitettava, ja rokotetta ei ole viel\u00e4 kehitetty, mutta toivonpilkahdus on saapunut taudin havaitsemis- ja hoitokeinojen muodossa, joilla tautia voidaan torjua.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Mind the Graph-tiimi onnittelee tutkijakolmikkoa, yliopistoja ja heid\u00e4n ryhmi\u00e4\u00e4n heid\u00e4n saavutuksistaan! Vuosikymmeni\u00e4 kest\u00e4nyt tutkimus ja kova ty\u00f6 ovat antaneet ihmiskunnalle uuden tien tappavan virustautin voittamiseksi.<\/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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