{"id":30506,"date":"2023-09-14T16:12:47","date_gmt":"2023-09-14T14:12:47","guid":{"rendered":"https:\/\/www.newsendip.com\/?p=30506"},"modified":"2024-07-23T14:29:02","modified_gmt":"2024-07-23T12:29:02","slug":"le-lait-maternel-une-potentielle-methode-de-depistage-de-cancers-du-sein","status":"publish","type":"post","link":"https:\/\/www.newsendip.com\/fr\/le-lait-maternel-une-potentielle-methode-de-depistage-de-cancers-du-sein\/","title":{"rendered":"Le lait maternel : une potentielle m\u00e9thode de d\u00e9pistage de cancers du sein\u202f?"},"content":{"rendered":"

Une \u00e9tude espagnole montre que le lait maternel pourrait am\u00e9liorer la d\u00e9tection de certains cancers du sein chez les nouvelles et futures m\u00e8res gr\u00e2ce \u00e0 une d\u00e9tection plus pr\u00e9coce de la maladie.<\/strong><\/p>\n

\"lait
Une r\u00e9cente \u00e9tude a permis de d\u00e9tecter la pr\u00e9sence d\u2019un cancer du sein par l\u2019analyse du lait maternel | \u00a9 rawpixel.com, Illustration<\/figcaption><\/figure>\n

Selon une \u00e9tude de l\u2019h\u00f4pital universitaire du Vall d\u2019Hebron<\/a> \u00e0 Barcelone, en Espagne<\/a>, des chercheuses ont fait une d\u00e9couverte qui pourrait modifier les m\u00e9thodes de d\u00e9pistage du cancer du sein chez les femmes enceintes et qui ont r\u00e9cemment accouch\u00e9.<\/p>\n

La nouvelle m\u00e9thode, publi\u00e9e par l\u2019American Association for Cancer le 14 septembre, implique le lait maternel.<\/p>\n

Il s\u2019av\u00e8re que le cancer peut \u00eatre d\u00e9tect\u00e9 dans le lait maternel. L\u2019ADN tumoral acellulaire (ADNct) \u2013 de l\u2019ADN de cellules canc\u00e9reuses sorti des cellules qui peut \u00eatre d\u00e9tect\u00e9 dans les fluides corporels \u2013 \u00e9tait pr\u00e9sent dans 13 \u00e9chantillons de lait maternel pr\u00e9lev\u00e9s sur 15 femmes atteintes d\u2019un cancer du sein. Selon les r\u00e9sultats, cette m\u00e9thode de d\u00e9tection de l\u2019ADNct peut \u00eatre 79\u202f% plus efficace que les tests sanguins traditionnels et permet d\u2019identifier le cancer avec pr\u00e9cision dans 71,4\u202f% des cas.<\/p>\n

Le lait maternel comme moyen de d\u00e9pistage non invasif du cancer du sein<\/h2>\n

Le lait maternel pourrait alors \u00eatre utilis\u00e9 comme m\u00e9thode de d\u00e9pistage et comme outil de diagnostic pendant la p\u00e9riode de lactation, qui s\u2019\u00e9tend g\u00e9n\u00e9ralement de la grossesse \u00e0 environ deux ans apr\u00e8s l\u2019accouchement.<\/p>\n

Les femmes plus \u00e2g\u00e9es ont recours \u00e0 la mammographie et les femmes qui n\u2019allaitent pas \u00e0 la biopsie sanguine, \u00e0 l\u2019aspiration du liquide mamelonnaire ou au lavage canalaire. Les m\u00e9thodes traditionnelles de d\u00e9pistage du cancer du sein restent invasives et inconfortables. L\u2019utilisation du lait<\/a> maternel pourrait constituer une proc\u00e9dure innovante, non invasive et indolore.<\/p>\n

Selon l\u2019Organisation mondiale de la sant\u00e9<\/a>, plus de 2,3 millions de cas de cancer du sein sont recens\u00e9s chaque ann\u00e9e dans le monde et il s\u2019agit de la principale cause de d\u00e9c\u00e8s par cancer chez les femmes dans 95\u202f% des pays du monde. L\u2019\u00e9tude indique que le cancer du sein est le cancer le plus fr\u00e9quent chez les femmes enceintes et allaitantes, et que 55\u202f% des cas de cancer du sein concernent des femmes de moins de 45 ans.<\/p>\n

D\u00e9tect\u00e9 \u00e0 un stade pr\u00e9coce, le taux de survie \u00e0 cinq ans du cancer du sein est de 99\u202f%<\/h2>\n

L\u2019un des facteurs critiques de toute forme de cancer<\/a> est le moment o\u00f9 il est d\u00e9tect\u00e9. Dans le cas d\u2019un cancer du sein survenant pendant la grossesse et apr\u00e8s l\u2019accouchement, il est g\u00e9n\u00e9ralement diagnostiqu\u00e9 \u00e0 un stade plus avanc\u00e9 que les autres cancers du sein.<\/p>\n

Dr Saura<\/a>, l\u2019une des principales chercheuses de l\u2019\u00e9tude, explique que \u00ab\u202fles changements physiologiques qui se produisent dans le sein pendant la grossesse et le post-partum rendent les tumeurs plus difficiles \u00e0 d\u00e9tecter [\u2026] et les femmes tombent enceintes \u00e0 des \u00e2ges o\u00f9 le d\u00e9pistage de la population par mammographie n\u2019est pas encore pratiqu\u00e9<\/em>\u202f\u00bb. Cela entra\u00eene une progression rapide, une \u00e9volution agressive, un risque plus \u00e9lev\u00e9 de d\u00e9velopper des m\u00e9tastases.<\/p>\n

Une d\u00e9tection pr\u00e9coce d\u2019un cancer permettrait, au stade localis\u00e9, d\u2019assurer un taux de survie de 99\u202f% les ann\u00e9es qui suivent, selon l\u2019American Cancer Society<\/a>. La d\u00e9couverte la plus remarquable concernant l\u2019ADNct est donc qu\u2019il pourrait servir de syst\u00e8me d\u2019alerte pr\u00e9coce. Il pourrait pr\u00e9dire la pr\u00e9sence d\u2019un cancer jusqu\u2019\u00e0 18 mois plus t\u00f4t que les scanners habituels et garantir ainsi un traitement efficace.<\/p>\n

Bien que d\u2019autres recherches et essais cliniques soient n\u00e9cessaires, cette \u00e9tude offre l\u2019espoir d\u2019une d\u00e9tection plus pr\u00e9coce du cancer du sein, d\u2019un traitement plus efficace et, par cons\u00e9quent, de sauver de nombreuses vies.<\/p>\n

Les chercheuses poursuivent d\u00e9j\u00e0 une nouvelle \u00e9tude sur des \u00e9chantillons de lait<\/a> maternel pr\u00e9lev\u00e9s sur 5 000 femmes en bonne sant\u00e9 \u00e2g\u00e9es de plus de 40 ans dans le monde entier et sur des femmes de tout \u00e2ge pr\u00e9sentant un risque de contracter un cancer du sein, dans l\u2019espoir d\u2019am\u00e9liorer la compr\u00e9hension du lait maternel en tant que moyen de d\u00e9tection potentiel.<\/p>\n","protected":false},"excerpt":{"rendered":"

Une \u00e9tude espagnole montre que le lait maternel pourrait am\u00e9liorer la d\u00e9tection de certains cancers du sein chez les nouvelles et futures m\u00e8res gr\u00e2ce \u00e0 une d\u00e9tection plus pr\u00e9coce de la maladie.<\/p>\n","protected":false},"author":219,"featured_media":30524,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[412],"tags":[433,523,1334],"class_list":["post-30506","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciences-et-sante","tag-espagne","tag-monde","tag-nouveau"],"yoast_head":"\nLe lait maternel : une potentielle m\u00e9thode de d\u00e9pistage de cancers du sein ?<\/title>\n<meta name=\"description\" content=\"Une \u00e9tude espagnole montre que le lait maternel pourrait am\u00e9liorer la d\u00e9tection de certains cancers du sein chez les nouvelles et futures 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