{"id":5248,"date":"2013-09-21T07:33:56","date_gmt":"2013-09-21T07:33:56","guid":{"rendered":"http:\/\/blogs.funiber.org\/it\/?p=5248"},"modified":"2013-10-11T10:13:10","modified_gmt":"2013-10-11T10:13:10","slug":"vitamina-b17-terapia-anti-tumorale","status":"publish","type":"post","link":"https:\/\/www.funiber.blog\/it\/salute-e-nutrizione\/2013\/09\/21\/vitamina-b17-terapia-anti-tumorale","title":{"rendered":"Vitamina B17: terapia anti-tumorale?"},"content":{"rendered":"<p align=\"justify\">La vitamina B17 torna a far parlare di se e soprattutto in relazione al cancro, dunque conosciamola meglio!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" alt=\"\" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/commons\/c\/c9\/Amygdalin-from-xtal-3D-balls.png\" width=\"1100\" height=\"756\" \/><\/p>\n<p align=\"justify\">Non \u00e8 certo una fantasticheria di un impunito biochimico alla ricerca di gloria quanto piuttosto un <strong>glicoside<\/strong> (D-mandelonitrile-\u03b2-D-gentiobioside) &#8211; noto gi\u00e0 da tempo &#8211; cianogenico capace, cio\u00e8 di liberare <em>acido cianidrico<\/em>.<br \/>\nL\u2019<em>amigdalina<\/em>, altro identificativo della stessa vitamina, \u00e8 tornata a far parlare di se per la sua stretta relazione con il cancro (<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/17106659\">review<\/a>).<\/p>\n<p align=\"justify\">La vitamina B17 segue un diverso destino nelle cellule \u201csane\u201d ed in quelle neoplastiche. Fu Ernest T. <em>Krebs<\/em> (1950) che evidenzi\u00f2 come questo composto possa essere coinvolto nel controllo della crescita delle cellule neoplastiche. La <em>Laestrile<\/em> \u2013 ancora altro nome dato al glicoside in questione &#8211; nelle cellule \u00e8 attaccata dall\u2019enzima <em>beta-glucosidasi<\/em> e per idrolisi si ottengono 2 veleni: <em>benzaldeide<\/em> (potente analgesico) e <em>ioni cianuro<\/em>. All\u2019interno di una cellula &#8220;sana&#8221; entrambe vengono rapidamente convertiti, grazie all\u2019enzima <em>rodanese<\/em>, in acido benzoico e tiocianati. Questi diventano cos\u00ec innocui e addirittura esercitano effetti positivi sulla cellula stessa.<br \/>\nNella cellula neoplastica invece i due composti si combinano fra loro formando una sostanza estremamente tossica che uccide la cellula stessa in una pseudo-apoptosi.<\/p>\n<p align=\"justify\">Su questa base \u00e8 sorta la proposta di utilizzare la vitamina B17 nel trattamento anti-tumorale. La comunit\u00e0 scientifica non \u00e8 unanime nell\u2019esprimere un parere positivo pertanto ulteriori studi sono necessari.<\/p>\n<p align=\"justify\">Esistono fonti alimentari? Certo! La vitamina B-17 si trova in natura nelle pesche, mele, uva, albicocche, lamponi, fragole, prugne e more.<\/p>\n<p align=\"justify\">Fonte: <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/22071824\">Laetrile treatment for cancer<\/a>; <a href=\"http:\/\/www.1cure4cancer.com\/scientificfacts.html\">Scientific cancer facts<\/a><\/p>\n<p align=\"justify\">Letizia Saturni<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La vitamina B17 torna a far parlare di se e soprattutto in relazione al cancro, dunque conosciamola meglio! Non \u00e8 certo una fantasticheria di un impunito biochimico alla ricerca di gloria quanto piuttosto un glicoside (D-mandelonitrile-\u03b2-D-gentiobioside) &#8211; noto gi\u00e0 da tempo &#8211; cianogenico capace, cio\u00e8 di liberare acido cianidrico. L\u2019amigdalina, altro identificativo della stessa vitamina, [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[11],"tags":[591,671],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vitamina B17: terapia anti-tumorale? - FuniBlogs - FUNIBER<\/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:\/\/www.funiber.blog\/it\/salute-e-nutrizione\/2013\/09\/21\/vitamina-b17-terapia-anti-tumorale\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vitamina B17: terapia anti-tumorale? - FuniBlogs - FUNIBER\" \/>\n<meta property=\"og:description\" content=\"La vitamina B17 torna a far parlare di se e soprattutto in relazione al cancro, dunque conosciamola meglio! Non \u00e8 certo una fantasticheria di un impunito biochimico alla ricerca di gloria quanto piuttosto un glicoside (D-mandelonitrile-\u03b2-D-gentiobioside) &#8211; noto gi\u00e0 da tempo &#8211; cianogenico capace, cio\u00e8 di liberare acido cianidrico. 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