{"id":13693,"date":"2025-12-02T15:56:25","date_gmt":"2025-12-02T18:56:25","guid":{"rendered":"https:\/\/fenati.org.br\/?p=13693"},"modified":"2025-12-03T09:24:28","modified_gmt":"2025-12-03T12:24:28","slug":"paciente-recupera-visao-apos-implante-de-cornea","status":"publish","type":"post","link":"https:\/\/homolog.fenati.org.br\/en\/paciente-recupera-visao-apos-implante-de-cornea\/","title":{"rendered":"Paciente recupera vis\u00e3o ap\u00f3s implante de c\u00f3rnea feita com impressora 3D"},"content":{"rendered":"<p><strong>Implante de c\u00f3rnea &#8211;<\/strong> Um marco na medicina regenerativa foi alcan\u00e7ado com o primeiro transplante bem-sucedido de uma c\u00f3rnea inteiramente impressa em 3D que foi capaz de restaurar a vis\u00e3o de um paciente que se encontrava legalmente cego. O procedimento foi conduzido no Rambam Eye Institute, em Haifa, <a href=\"https:\/\/pt.wikipedia.org\/wiki\/Israel\">Israel<\/a>, em colabora\u00e7\u00e3o com a empresa Precise Bio, especializada no desenvolvimento de tecidos biofabricados.<\/p>\n<p>A t\u00e9cnica inovadora utilizou um implante constru\u00eddo a partir de c\u00e9lulas humanas de c\u00f3rnea cultivadas em laborat\u00f3rio, eliminando a necessidade de um doador tradicional. Realizada no fim de outubro, a cirurgia abre perspectivas para ampliar o acesso a transplantes em pa\u00edses onde a aus\u00eancia de bancos de olhos e de infraestrutura adequada limita o atendimento.<\/p>\n<p><a href=\"https:\/\/fenati.org.br\/1-topo-renda-brasil-concentra-37-riqueza-total\/\"><strong>LEIA: 1% no topo da renda no Brasil concentra 37% da riqueza total, diz relat\u00f3rio da Fazenda<\/strong><\/a><\/p>\n<p>A c\u00f3rnea desempenha papel central na forma\u00e7\u00e3o da imagem e pode sofrer danos por traumas, infec\u00e7\u00f5es ou condi\u00e7\u00f5es heredit\u00e1rias. Apesar de os transplantes convencionais apresentarem taxas de sucesso pr\u00f3ximas de 97%, a disponibilidade de tecido \u00e9 extremamente desigual ao redor do mundo. Em pa\u00edses desenvolvidos, a espera costuma durar alguns dias; em outras regi\u00f5es, o tempo pode se estender por anos.<\/p>\n<p>O modelo de impress\u00e3o 3D adotado neste caso promete transformar esse cen\u00e1rio. A partir de uma \u00fanica c\u00f3rnea saud\u00e1vel, os pesquisadores foram capazes de cultivar material suficiente para produzir cerca de 300 implantes, multiplicando significativamente a oferta e permitindo atender milhares de pessoas que enfrentam perda de vis\u00e3o causada por danos na c\u00f3rnea.<\/p>\n<p>Al\u00e9m disso, o processo aponta para uma produ\u00e7\u00e3o mais uniforme e escal\u00e1vel, algo dif\u00edcil de atingir quando se depende exclusivamente de doa\u00e7\u00f5es humanas.<\/p>\n<h4>Caminho para outros tecidos<\/h4>\n<p>A inova\u00e7\u00e3o aplicada n\u00e3o surgiu de forma repentina. A primeira vers\u00e3o de uma c\u00f3rnea produzida por impress\u00e3o 3D foi desenvolvida em 2018 pela Universidade de Newcastle, no Reino Unido. Desde ent\u00e3o, a Precise Bio vem aprimorando o m\u00e9todo ao longo de uma d\u00e9cada, em parceria com m\u00e9dicos e equipes de pesquisa.<\/p>\n<p>De acordo com a empresa, a mesma plataforma de bioimpress\u00e3o poder\u00e1 futuramente ser utilizada para gerar:<\/p>\n<p>* tecido card\u00edaco;<br \/>\n* c\u00e9lulas hep\u00e1ticas;<br \/>\n* c\u00e9lulas renais.<\/p>\n<p>Essas poss\u00edveis aplica\u00e7\u00f5es ainda dependem de estudos cl\u00ednicos rigorosos, mas apontam para uma revolu\u00e7\u00e3o no tratamento de doen\u00e7as graves, especialmente em contextos de escassez de \u00f3rg\u00e3os para transplante.<\/p>\n<p><em><strong>(Com informa\u00e7\u00f5es de Olhar Digital)<\/strong><\/em><br \/>\n<em><strong>(Foto: Reprodu\u00e7\u00e3o\/Freepik\/EyeEm)<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Implante biotecnol\u00f3gico, desenvolvido sem depender de doadores, pode revolucionar cirurgias envolvendo diversos tipos de tecido<\/p>","protected":false},"author":11,"featured_media":13694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[13],"class_list":["post-13693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-sindical"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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