{"id":4941,"date":"2023-12-18T17:08:05","date_gmt":"2023-12-18T17:08:05","guid":{"rendered":"https:\/\/b2b.revogan.be\/phenylcetonurie-pcu\/"},"modified":"2025-05-09T09:42:52","modified_gmt":"2025-05-09T09:42:52","slug":"phenylcetonurie-pcu","status":"publish","type":"page","link":"https:\/\/b2b.revogan.be\/fr\/hub-sciences\/phenylcetonurie-pcu\/","title":{"rendered":"Ph\u00e9nylc\u00e9tonurie (PCU)"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row css=\u00a0\u00bb.vc_custom_1702335757806{margin-top: 5% !important;}\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text el_class=\u00a0\u00bbdarkgreen weight300&Prime;]<\/p>\n<h1 style=\"text-align: left;\">Ph\u00e9nylc\u00e9tonurie (PCU)<\/h1>\n<p>[\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/2&Prime;][\/vc_column][\/vc_row][vc_row css=\u00a0\u00bb.vc_custom_1708009727839{margin-bottom: 7% !important;}\u00a0\u00bb][vc_column][vc_column_text el_class=\u00a0\u00bbopensans darkgreen\u00a0\u00bb]<\/p>\n<h2>Qu&rsquo;est-ce que la PCU ?<\/h2>\n<p>La ph\u00e9nylc\u00e9tonurie, abr\u00e9g\u00e9e en PCU, est une maladie m\u00e9tabolique r\u00e9cessive \u00e0 transmission autosomique. La ph\u00e9nylalanine hydroxylase (PAH) est absente ou inactive chez les personnes atteintes de cette maladie.<br \/>\nLa <strong>ph\u00e9nylalanine hydroxylase<\/strong> est l&rsquo;enzyme qui transforme la ph\u00e9nylalanine (Phe) en tyrosine.<br \/>\nLa <strong>ph\u00e9nylalanine <\/strong>est un acide amin\u00e9 essentiel pour notre organisme. Nous ne pouvons pas le fabriquer nous-m\u00eames et devons l&rsquo;absorber par le biais de notre alimentation.<\/p>\n<p>Cette d\u00e9gradation d\u00e9fectueuse ou absente entra\u00eene l&rsquo;accumulation de cet acide amin\u00e9 dans le sang et les tissus. En cons\u00e9quence, les cellules nerveuses sont endommag\u00e9es, ce qui peut entra\u00eener des l\u00e9sions c\u00e9r\u00e9brales, un retard mental progressif, des troubles du comportement et l&rsquo;\u00e9pilepsie.<\/p>\n<h2>Comment est-elle \u00e9tablie ?<\/h2>\n<p>En Belgique, la piq\u00fbre au talon ou le test de Guthrie est syst\u00e9matiquement appliqu\u00e9 dans les premiers jours suivant la naissance. L&rsquo;une des maladies faisant l&rsquo;objet d&rsquo;un d\u00e9pistage est la PCU. Environ 1 enfant belge sur 18 000 est atteint de PCU. Ce n&rsquo;est que si les deux parents sont porteurs du g\u00e8ne de la PCU qu&rsquo;ils peuvent avoir un enfant souffrant de PCU. Si aucun des parents n&rsquo;est atteint de PCU mais que les deux sont porteurs, le risque de PCU pour chaque enfant est de 25 %.<\/p>\n<h2>Traitement di\u00e9t\u00e9tique<\/h2>\n<p>Les aliments riches en prot\u00e9ines sont des sources naturelles de ph\u00e9nylalanine. Il est donc important pour une personne atteinte de PCU d&rsquo;\u00e9viter ces prot\u00e9ines.<\/p>\n<p><strong>La PCU est bien trait\u00e9e par un r\u00e9gime pauvre en prot\u00e9ines tout au long de la vie.<\/strong> En compl\u00e9ment, les patients atteints de PCU doivent prendre quotidiennement et \u00e0 vie des m\u00e9langes d&rsquo;acides amin\u00e9s sp\u00e9cifiquement \u00e9labor\u00e9s, car lorsqu&rsquo;ils suivent un r\u00e9gime pauvre en prot\u00e9ines, les autres acides amin\u00e9s essentiels sont d\u00e9ficients.<br \/>\nLe r\u00e9gime hypoprot\u00e9in\u00e9 consiste en une alimentation compl\u00e8te avec une quantit\u00e9 limit\u00e9e de ph\u00e9nylalanine.<\/p>\n<ul>\n<li>Le degr\u00e9 de restriction de l&rsquo;acide amin\u00e9 ph\u00e9nylalanine d\u00e9pend enti\u00e8rement de la concentration de ph\u00e9nylalanine dans le s\u00e9rum. La quantit\u00e9 de ph\u00e9nylalanine par kilogramme de poids corporel varie d&rsquo;un individu \u00e0 l&rsquo;autre et est en partie d\u00e9termin\u00e9e par des processus physiologiques tels que la croissance. Il est conseill\u00e9 de r\u00e9partir la quantit\u00e9 de ph\u00e9nylalanine autoris\u00e9e tout au long de la journ\u00e9e. L&rsquo;utilisation de produits di\u00e9t\u00e9tiques \u00e0 faible teneur en prot\u00e9ines est recommand\u00e9e.<\/li>\n<li>Compl\u00e9ter les besoins quotidiens en acides amin\u00e9s essentiels et non essentiels par une pr\u00e9paration synth\u00e9tique d&rsquo;acides amin\u00e9s L.<\/li>\n<li>Fournir suffisamment d&rsquo;\u00e9nergie \u00e0 partir des graisses et des hydrates de carbone (pour \u00e9viter d&rsquo;utiliser les prot\u00e9ines de l&rsquo;organisme comme source d&rsquo;\u00e9nergie et de lib\u00e9rer ainsi de la ph\u00e9nylalanine). Une augmentation de l&rsquo;apport \u00e9nerg\u00e9tique est obtenue en m\u00e9langeant de la dextrine-maltose, du glucose, de l&rsquo;huile de ma\u00efs, du beurre, de la margarine, de la cr\u00e8me fouett\u00e9e, etc&#8230; \u00e0 l&rsquo;alimentation quotidienne. L&rsquo;utilisation suppl\u00e9mentaire de produits di\u00e9t\u00e9tiques \u00e0 faible teneur en prot\u00e9ines peut \u00e9galement y contribuer de mani\u00e8re importante.<\/li>\n<li>Apport de vitamines, de min\u00e9raux et d&rsquo;oligo-\u00e9l\u00e9ments en quantit\u00e9 suffisante.<\/li>\n<li>Veiller \u00e0 ce que le r\u00e9gime alimentaire contienne suffisamment d&rsquo;acide linol\u00e9ique.<\/li>\n<\/ul>\n<p>En outre, l&rsquo;\u00e9dulcorant <strong>aspartame<\/strong> devrait \u00eatre supprim\u00e9 de leur r\u00e9gime alimentaire. L&rsquo;aspartame est une source de ph\u00e9nylalanine et se trouve souvent dans les produits all\u00e9g\u00e9s.<\/p>\n<p>Les patients atteints de PCU font l&rsquo;objet d&rsquo;un suivi rigoureux de la part du m\u00e9decin traitant et du di\u00e9t\u00e9ticien. Les aliments pauvres en prot\u00e9ines sp\u00e9cialement con\u00e7us pour cette pathologie ne peuvent \u00eatre obtenus en pharmacie que sur ordonnance. Les patients atteints de PCU b\u00e9n\u00e9ficient d&rsquo;une intervention de l&rsquo;assurance maladie \u00e0 cette fin.[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=\u00a0\u00bbstretch_row\u00a0\u00bb gap=\u00a0\u00bb35&Prime; equal_height=\u00a0\u00bbyes\u00a0\u00bb content_placement=\u00a0\u00bbmiddle\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1746528010361{margin-top: 3% !important;margin-bottom: 0% !important;padding-bottom: 3% !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/3&Prime;][\/vc_column][vc_column width=\u00a0\u00bb1\/3&Prime;][vc_btn title=\u00a0\u00bbRetour \u00e0 SCIENCE HUB\u00a0\u00bb style=\u00a0\u00bbcustom\u00a0\u00bb custom_background=\u00a0\u00bb#1f5740&Prime; custom_text=\u00a0\u00bb#ffffff\u00a0\u00bb shape=\u00a0\u00bbround\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1746783634753{margin-right: 15px !important;}\u00a0\u00bb link=\u00a0\u00bburl:https%3A%2F%2Fb2b.revogan.be%2Ffr%2Fhub-sciences%2F|title:science%20hub\u00a0\u00bb][\/vc_column][vc_column width=\u00a0\u00bb1\/3&Prime;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row css=\u00a0\u00bb.vc_custom_1702335757806{margin-top: 5% !important;}\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text el_class=\u00a0\u00bbdarkgreen weight300&Prime;] Ph\u00e9nylc\u00e9tonurie (PCU) [\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/2&Prime;][\/vc_column][\/vc_row][vc_row css=\u00a0\u00bb.vc_custom_1708009727839{margin-bottom: 7% !important;}\u00a0\u00bb][vc_column][vc_column_text el_class=\u00a0\u00bbopensans darkgreen\u00a0\u00bb] Qu&rsquo;est-ce que la PCU ? La ph\u00e9nylc\u00e9tonurie, abr\u00e9g\u00e9e en PCU, est une maladie m\u00e9tabolique r\u00e9cessive \u00e0 transmission autosomique. La ph\u00e9nylalanine hydroxylase (PAH) est absente ou inactive chez les personnes atteintes de cette maladie. La ph\u00e9nylalanine hydroxylase est l&rsquo;enzyme qui&hellip;&nbsp;<a href=\"https:\/\/b2b.revogan.be\/fr\/hub-sciences\/phenylcetonurie-pcu\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Ph\u00e9nylc\u00e9tonurie (PCU)<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":5128,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":100,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"on","neve_meta_reading_time":"","footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-4941","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ph\u00e9nylc\u00e9tonurie (PCU) - 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