{"id":16660,"date":"2017-07-31T06:30:30","date_gmt":"2017-07-31T10:30:30","guid":{"rendered":"https:\/\/cna.ca\/?post_type=news&#038;p=16660\/"},"modified":"2020-03-10T13:55:01","modified_gmt":"2020-03-10T17:55:01","slug":"canada-150-la-science-nucleaire-et-votre-sante","status":"publish","type":"post","link":"https:\/\/cna.ca\/fr\/2017\/07\/31\/canada-150-la-science-nucleaire-et-votre-sante\/","title":{"rendered":"Canada 150 : La science nucl\u00e9aire et votre&nbsp;sant\u00e9"},"content":{"rendered":"<p>Lorsqu\u2019il est question de sant\u00e9 et de m\u00e9decine, la science nucl\u00e9aire est \u00e0 l\u2019origine de nombreuses r\u00e9alisations qui ont am\u00e9lior\u00e9 la vie de millions de gens partout dans le monde. Dans le cadre des c\u00e9l\u00e9brations des 150 ans du Canada, nous voulions jeter un rapide regard sur certaines de ces r\u00e9alisations.<\/p>\n<div id=\"attachment_16627\" style=\"width: 199px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16627\" class=\"wp-image-16627\" src=\"https:\/\/cna.ca\/wp-content\/uploads\/2017\/06\/HARRIETBROOKS.jpg\" alt=\"\" width=\"189\" height=\"237\" srcset=\"https:\/\/cna.ca\/wp-content\/uploads\/2017\/06\/HARRIETBROOKS.jpg 600w, https:\/\/cna.ca\/wp-content\/uploads\/2017\/06\/HARRIETBROOKS-240x300.jpg 240w\" sizes=\"auto, (max-width: 189px) 100vw, 189px\" \/><p id=\"caption-attachment-16627\" class=\"wp-caption-text\">Harriet Brooks<\/p><\/div>\n<p>\u00c0 la fin des ann\u00e9es 1800, la <a href=\"http:\/\/publications.mcgill.ca\/reporter\/2011\/03\/women\u2019s-day-profile-remembering-harriet-brooks-canada\u2019s-first-woman-nuclear-physicist\/\">D<sup>re\u00a0<\/sup>Harriet Brooks<\/a>, premier physicien nucl\u00e9aire du Canada, a d\u00e9couvert le radon dans le cadre de ses travaux \u00e0 l\u2019Universit\u00e9 McGill et a travaill\u00e9 dans le laboratoire de Marie Curie. Son travail a \u00e9tabli les bases de la physique nucl\u00e9aire et balis\u00e9 les avanc\u00e9es futures de femmes telles que la <a href=\"http:\/\/cdnmedhall.org\/inductees\/honourable-dr-sylvia-fedoruk\">D<sup>re<\/sup> Sylvia Fedoruk<\/a>.<\/p>\n<p>Au milieu des ann\u00e9es 1950, la D<sup>re\u00a0<\/sup>Fedoruk et une \u00e9quipe de chercheurs sous la direction du D<sup>r<\/sup>\u00a0Harold Johns est devenue l\u2019un des deux premiers groupes de chercheurs au Canada (l\u2019autre \u00e9tant un groupe de London, en Ontario) \u00e0 traiter avec succ\u00e8s un patient atteint du cancer avec la <a href=\"http:\/\/www.usask.ca\/cobalt60\/\">th\u00e9rapie \u00e0 radiation au cobalt-60<\/a>. Aujourd\u2019hui, on estime que plus de 70 millions de personnes partout dans le monde ont b\u00e9n\u00e9fici\u00e9 de cette th\u00e9rapie, et des machines au cobalt-60 sont toujours en service.<\/p>\n<p>Les avantages et les applications du cobalt-60 vont bien au-del\u00e0 des traitements du cancer. La capacit\u00e9 du cobalt-60 \u00e0 tuer effectivement le plus petit des microbes potentiellement nuisibles en fait l\u2019outil parfait pour la st\u00e9rilisation des accessoires m\u00e9dicaux tels que gants, blouses, poches \u00e0 solut\u00e9 IV, seringues et cath\u00e9ters. Le cobalt de qualit\u00e9 m\u00e9dicale ou le Cobalt-60 \u00e0 activit\u00e9 sp\u00e9cifique \u00e9lev\u00e9e (HSA), comme celui qu\u2019utilisaient la D<sup>re\u00a0<\/sup>Fedoruk et les autres, constitue la base du traitement anti-canc\u00e9reux depuis plus de 60 ans. Un r\u00e9cent partenariat entre <a href=\"http:\/\/www.brucepower.com\/nordion-bruce-power-agreement-2064\/\">Nordion et Bruce Power<\/a> permettra d\u2019assurer la disponibilit\u00e9 du traitement \u00e0 base de cobalt-60 pendant les ann\u00e9es \u00e0 venir.<\/p>\n<p>Pionnier des <a href=\"http:\/\/www.cnl.ca\/en\/home\/facilities-and-expertise\/nru\/isotopes.aspx\">isotopes m\u00e9dicaux <\/a>\u00a0il y a plus de cinquante ans, le Canada a \u00e9t\u00e9 \u00e0 l\u2019avant-garde mondiale des fournisseurs d\u2019isotopes et, ce faisant, a contribu\u00e9 \u00e0 l\u2019am\u00e9lioration de la sant\u00e9 mondiale. Utilis\u00e9s pour le diagnostic et le traitement de diverses affections et maladies d\u2019organes tels que le cerveau, les poumons, le c\u0153ur et les reins, les isotopes ont jou\u00e9 un r\u00f4le cl\u00e9 dans le syst\u00e8me des soins de sant\u00e9 et aid\u00e9 des millions de personnes chaque ann\u00e9e. L&#8217;importance des isotopes ne cesse de cro\u00eetre. Selon un rapport r\u00e9cent, le march\u00e9 mondial des adjuvants du diagnostic m\u00e9dical nucl\u00e9aire devrait doubler d\u2019ici <a href=\"http:\/\/www.openpr.com\/news\/564973\/Global-Nuclear-Medicine-Diagnostic-Market-is-estimated-at-9-83-billion-in-2015-and-is-expected-to-reach-18-27-billion-by-2020.html\">2020<\/a>. \u00c0 l\u2019\u00e9chelle mondiale, <a href=\"https:\/\/cna.ca\/wp-content\/uploads\/2017\/01\/2017-Factbook-FR-WEB-FINAL.pdf\">plus de 40 millions<\/a> de proc\u00e9dures m\u00e9dicales nucl\u00e9aires sont r\u00e9alis\u00e9es chaque ann\u00e9e.<\/p>\n<p>Aujourd\u2019hui, dans les locaux du <a href=\"https:\/\/vimeo.com\/135484724\">TRIUMF<\/a>, \u00e0 Vancouver, des scientifiques planchent sur la prochaine g\u00e9n\u00e9ration des traitements contre le cancer par l\u2019exploration des th\u00e9rapies alpha. Dans cette approche cibl\u00e9e, les cellules canc\u00e9reuses sont d\u00e9truites depuis l\u2019int\u00e9rieur, ce qui minimise les dommages caus\u00e9s aux tissus sains. Ces isotopes \u00e9metteurs de particules alpha seraient particuli\u00e8rement efficaces pour lutter contre les cancers trait\u00e9s tardivement ou pr\u00e9sentant des m\u00e9tastases (\u00e9largissement de la zone de propagation du cancer).<\/p>\n<p><strong><em><iframe loading=\"lazy\" src=\"\/\/player.vimeo.com\/video\/135484724?title=0&amp;amp;byline=0\" width=\"425\" height=\"250\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><br \/>\n<\/em><\/strong><\/p>\n<p>Pour pouvoir mettre au point tous les outils n\u00e9cessaires au diagnostic et au traitement de ces patients, la compr\u00e9hension de la mani\u00e8re dont notre corps fonctionne au niveau cellulaire est un \u00e9l\u00e9ment cl\u00e9. La ville de St.\u00a0Catharines, en Ontario, abrite l\u2019<a href=\"http:\/\/www.physics.brocku.ca\/People\/Faculty\/Harroun\/\">Universit\u00e9 Brock<\/a>. On y trouve des groupes de scientifiques qui s\u2019emploient \u00e0 trouver des r\u00e9ponses \u00e0 certains des plus importants d\u00e9fis mondiaux de la sant\u00e9 et, en en scrutant le niveau cellulaire, s\u2019efforcent de d\u00e9voiler le fonctionnement de notre corps. \u00c0 l\u2019aide d\u2019un faisceau de neutrons et d\u2019un microscope \u00e0 tr\u00e8s haute r\u00e9solution, il est possible de scruter de l\u2019int\u00e9rieur des amas de cellules sans les endommager. Thad Harroun est professeur associ\u00e9 \u00e0 l\u2019Universit\u00e9 Brock. Il est venu au Canada en 2003 pour travailler au Centre canadien de faisceaux de neutrons et a pris part \u00e0 diverses exp\u00e9riences pour mieux comprendre les interactions \u00e0 l\u2019int\u00e9rieur de notre corps. L\u2019un des projets r\u00e9cents vise \u00e0 mieux comprendre le<a href=\"http:\/\/cins.ca\/2017\/03\/03\/bio-5\/\"> cholest\u00e9rol<\/a>.<\/p>\n<p>\u00ab\u00a0Nous voulons savoir, dit-il, comment les prot\u00e9ines dans nos cellules interagissent avec le cholest\u00e9rol et les graisses et nous essayons de voir comment le cholest\u00e9rol soutient les membranes des cellules.\u00a0\u00bb<\/p>\n<p>Nagu\u00e8re consid\u00e9r\u00e9 comme l\u2019ennemi de nos art\u00e8res, la nouvelle recherche r\u00e9v\u00e8le l\u2019importance du cholest\u00e9rol pour la sant\u00e9 tant de nos cellules que de nos poumons. Dans ses travaux, le D<sup>r\u00a0<\/sup>Harroun a \u00e9galement explor\u00e9 l\u2019importance de la vitamine E pour la sant\u00e9 des cellules.<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-16409 alignright\" src=\"https:\/\/cna.ca\/wp-content\/uploads\/2017\/05\/Cancer-NewsletterSecondary.jpg\" alt=\"\" width=\"250\" height=\"180\" \/><\/p>\n<p>Les traitements de pointe en mati\u00e8re de canc\u00e9rologie incluent aujourd\u2019hui la <a href=\"http:\/\/www.columbianeurosurgery.org\/conditions\/gamma-knife-radiosurgery\/\">radiochirurgie avec scalpel gamma<\/a>. Contrairement \u00e0 ce que son nom donne \u00e0 penser, cette proc\u00e9dure (qui ne rel\u00e8ve pas de la chirurgie et qui ne fait appel \u00e0 aucun scalpel) constitu\u00e9e de faisceaux de radiations, <a href=\"http:\/\/www.newswire.ca\/news-releases\/brain-tumour-patients-around-the-world-to-benefit-from-new-partnership-between-bruce-power-and-nordion-596939791.html\">deux cents au total<\/a>, vise les cellules canc\u00e9reuses pour tuer plus efficacement les tumeurs tout en prot\u00e9geant les tissus sains environnants, et redonne de l\u2019espoir aux patients atteints de tumeurs et de l\u00e9sions c\u00e9r\u00e9brales.<\/p>\n<p>Notre part dans l\u2019histoire de la m\u00e9decine nucl\u00e9aire est \u00e9maill\u00e9e de r\u00e9cits et de succ\u00e8s. Dans le cadre des c\u00e9l\u00e9brations du 150<sup>e<\/sup> anniversaire du Canada, nous avons de nombreuses raisons d\u2019\u00eatre fiers de toutes ces r\u00e9alisations qui continueront de contribuer \u00e0 la sant\u00e9 mondiale pendant de nombreuses g\u00e9n\u00e9rations.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lorsqu\u2019il est question de sant\u00e9 et de m\u00e9decine, la science nucl\u00e9aire est \u00e0 l\u2019origine de nombreuses r\u00e9alisations qui ont am\u00e9lior\u00e9 la vie de millions de gens partout dans le monde. Dans le cadre des c\u00e9l\u00e9brations des 150 ans du Canada, nous voulions jeter un rapide regard sur certaines de ces r\u00e9alisations<\/p>\n","protected":false},"author":1,"featured_media":16794,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[244],"tags":[452,20,492,446,451,450,449,445],"topic":[],"class_list":["post-16660","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-contenu-vedette","tag-150-ans-du-canada","tag-cna","tag-cna-fr","tag-cobalt-60","tag-harriet-brooks","tag-medicine","tag-sante","tag-sylvia-fedoruk"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Canada 150 : La science nucl\u00e9aire et votre sant\u00e9 - Association nucl\u00e9aire canadienne<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cna.ca\/fr\/2017\/07\/31\/canada-150-la-science-nucleaire-et-votre-sante\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Canada 150 : La science nucl\u00e9aire et votre sant\u00e9 - Association nucl\u00e9aire canadienne\" \/>\n<meta property=\"og:description\" content=\"Lorsqu\u2019il est question de sant\u00e9 et de m\u00e9decine, la science nucl\u00e9aire est \u00e0 l\u2019origine de nombreuses r\u00e9alisations qui ont am\u00e9lior\u00e9 la vie de millions de gens partout dans le monde. 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