{"id":5456,"date":"2022-05-31T08:07:46","date_gmt":"2022-05-31T08:07:46","guid":{"rendered":"https:\/\/blog.caixaresearch.org\/?p=5456"},"modified":"2022-06-03T08:14:18","modified_gmt":"2022-06-03T08:14:18","slug":"curar-la-ceguesa-tractar-la-retina-per-restaurar-la-visio-2","status":"publish","type":"post","link":"https:\/\/blog.caixaresearch.org\/ca\/curar-la-ceguesa-tractar-la-retina-per-restaurar-la-visio-2\/","title":{"rendered":"Curar la ceguesa: tractar la retina per restaurar la visi\u00f3"},"content":{"rendered":"<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/tIKfZzeDz08\" width=\"400\" height=\"225\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h2><span style=\"font-weight: 400;\">\u00abCurar la ceguesa ja no \u00e9s una utopia.\u00bb \u00abUn home amb una ceguesa total aconsegueix veure-hi per primera vegada.\u00bb \u00abUn implant restaura la visi\u00f3 en ratolins.\u00bb<\/span><\/h2>\n<p><span style=\"font-weight: 300;\">Amb la menci\u00f3 d\u2019aquests titulars iniciava <\/span><b>Nuria Ram\u00edrez de Castro<\/b><span style=\"font-weight: 400;\">,<\/span><span style=\"font-weight: 300;\"> redactora en cap de Societat al diari <\/span><i><span style=\"font-weight: 300;\">ABC<\/span><\/i><span style=\"font-weight: 300;\">, un nou Debat CaixaResearch, el que es va celebrar el 25 de maig, al qual van assistir prop de 500 persones en <\/span><i><span style=\"font-weight: 300;\">streaming<\/span><\/i><span style=\"font-weight: 300;\">. \u00abDe veritat som tan a prop d\u2019aconseguir curar la ceguesa, o hi ha m\u00e9s entusiasme en els mitjans de comunicaci\u00f3 que en la realitat?\u00bb, preguntava la periodista als dos ponents, la <\/span><span style=\"font-weight: 400;\">doctora<\/span><b> Maria Pia Cosma<\/b><span style=\"font-weight: 300;\"> (ICREA i CRG) i el doctor<\/span><b> Jos\u00e9 Antonio Garrido<\/b><span style=\"font-weight: 300;\"> (ICREA i ICN2).<\/span><\/p>\n<p><span style=\"font-weight: 300;\">\u00abEls titulars corren m\u00e9s que la realitat\u00bb, avan\u00e7ava el doctor Garrido. Tot i aix\u00ed, gr\u00e0cies al desenvolupament de la <\/span><b>medicina regenerativa i a una tecnologia cada vegada m\u00e9s sofisticada<\/b><span style=\"font-weight: 400;\">, aquesta vella aspiraci\u00f3 ha deixat de ser un somni. \u00abLa ci\u00e8ncia progressa i nom\u00e9s es q\u00fcesti\u00f3 de temps\u00bb, afegia la doctora<\/span><b> Pia Cosma<\/b><span style=\"font-weight: 300;\">.<\/span><\/p>\n<p><span style=\"font-weight: 300;\">Els dos projectes d&#8217;innovaci\u00f3 d&#8217;aquests investigadors s\u00f3n un exemple m\u00e9s de com, amb la recerca i la innovaci\u00f3, curar la ceguesa est\u00e0 cada dia m\u00e9s a prop.<\/span><\/p>\n<p><span style=\"font-weight: 300;\">La doctora Pia Cosma <\/span><span style=\"font-weight: 400;\">treballa en la recreaci\u00f3 de la retina <\/span><b>a partir de c\u00e8l\u00b7lules mare del pacient<\/b><span style=\"font-weight: 400;\"> per provar <\/span><b>noves ter\u00e0pies de regeneraci\u00f3 de fotoreceptors<\/b><span style=\"font-weight: 400;\">. \u00abLa regeneraci\u00f3 de la retina s\u2019esdev\u00e9 de manera natural en els peixos i en altres invertebrats inferiors. Aquesta capacitat la va perdre la nostra esp\u00e8cie. Per\u00f2 creiem que podem trobar estrat\u00e8gies per recuperar aquesta habilitat\u00bb. Per aix\u00f2, els investigadors utilitzen organoides que emulen una retina. \u00abTrasplantem c\u00e8l\u00b7lules mare i n\u2019estudiem la diferenciaci\u00f3.\u00bb<\/span><\/p>\n<p><span style=\"font-weight: 400;\">El doctor Garrido se centra en la <\/span><b>regeneraci\u00f3 de pr\u00f2tesis<\/b><span style=\"font-weight: 400;\"> de retina per restaurar l\u2019agudesa visual <\/span><b>mitjan\u00e7ant est\u00edmuls el\u00e8ctrics<\/b><span style=\"font-weight: 400;\">. \u00abLa retina \u00e9s l\u2019estructura de l\u2019ull que converteix la llum en impulsos el\u00e8ctrics. I s\u00f3n aquests impulsos els que viatgen pel sistema nervi\u00f3s.\u00bb Per generar aquestes pr\u00f2tesis s\u2019utilitza el graf\u00e8. \u00abT\u00e9 unes propietats qu\u00edmiques, mec\u00e0niques i f\u00edsiques fant\u00e0stiques, que el fan resistent, estable, biocompatible i capa\u00e7 de respondre davant de senyals el\u00e8ctrics\u00bb. Actualment, les tecnologies comercials tenen una limitaci\u00f3 principal: el nombre de punts a la retina que s\u2019estimulen \u00e9s molt limitat i les imatges que es configuren s\u00f3n molt poc precises. \u00abLa nostra tecnologia \u00e9s capa\u00e7 d\u2019estimular molts m\u00e9s punts. A m\u00e9s, es pot adaptar a cada retina segons el pacient. El resultat \u00e9s una visi\u00f3 molt m\u00e9s n\u00edtida\u00bb.<\/span><\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Si vols saber m\u00e9s sobre aquests dos projectes punters, pots recuperar el debat complet <\/span><a href=\"https:\/\/www.youtube.com\/watch?v=6d4oDRv4FNo\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">aqu\u00ed<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/tIKfZzeDz08\" width=\"400\" height=\"225\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>\u00abCurar la ceguesa ja no \u00e9s una utopia.\u00bb \u00abUn home amb una ceguesa total aconsegueix veure-hi per primera vegada.\u00bb \u00abUn implant restaura la visi\u00f3 en ratolins.\u00bb<\/p>\n<p>Amb la menci\u00f3 d\u2019aquests titulars iniciava Nuria Ram\u00edrez de Castro, redactora en cap de Societat al diari <i>ABC<\/i>, un nou Debat CaixaResearch, el que es va celebrar el 25 de maig, al qual van assistir prop de 500 persones en <i>streaming<\/i>. \u00abDe veritat som tan a prop d\u2019aconseguir curar la ceguesa, o hi ha m\u00e9s entusiasme en els mitjans de comunicaci\u00f3 que en la realitat?\u00bb, preguntava la periodista als dos ponents, la doctora Maria Pia Cosma (ICREA i CRG) i el doctor Jos\u00e9 Antonio Garrido (ICREA i ICN2).<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[520],"tags":[565],"class_list":["post-5456","post","type-post","status-publish","format-standard","hentry","category-divulgacio-cientifica","tag-debate-ca"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - 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