{"id":2698,"date":"2013-11-05T08:57:49","date_gmt":"2013-11-05T08:57:49","guid":{"rendered":"http:\/\/blogs.funiber.org\/pt\/?p=2698"},"modified":"2013-11-05T08:57:49","modified_gmt":"2013-11-05T08:57:49","slug":"carencia-de-glicose-inibe-processo-de-autofagia-nas-celulas","status":"publish","type":"post","link":"https:\/\/www.funiber.blog\/pt\/saude-e-nutricao\/2013\/11\/05\/carencia-de-glicose-inibe-processo-de-autofagia-nas-celulas","title":{"rendered":"Car\u00eancia de glicose inibe processo de autofagia nas c\u00e9lulas"},"content":{"rendered":"<p>At\u00e9 agora, considerou-se que a falta de qualquer tipo de nutriente no organismo gerava o processo de autofagia nas c\u00e9lulas, mas um estudo recente demonstra que a falta de glicose n\u00e3o desencadeia este processo. As c\u00e9lulas ativam este mecanismo de prote\u00e7\u00e3o quando s\u00e3o privadas de nutrientes e iniciam um mecanismo para degradar seus org\u00e2nulos e recicl\u00e1-los com o objetivo de gerar energia e sobreviver.<!--more--><\/p>\n<p>Um estudo, publicado na revista <i>Journal of Biological Chemistry<\/i>, demonstra que a falta de glicose no organismo inibe o processo de autofagia celular. A doutora Cristina Mu\u00f1oz-Pinedo, diretora do Grupo de Regula\u00e7\u00e3o da Morte Celular do Instituto de Pesquisa Biom\u00e9dica de Bellvitge e diretora deste estudo, ressaltou que \u00e9 relevante considerar que a glicose \u00e9 um dos nutrientes mais importantes.<\/p>\n<p>Este estudo tamb\u00e9m demonstrou que a mol\u00e9cula 2-desoxiglicose que, entre outras fun\u00e7\u00f5es, inibe a glic\u00f3lise, induz, sim, o processo de autofagia. Portanto, \u00e9 necess\u00e1rio um maior n\u00famero de an\u00e1lises para avaliar tal processo.<\/p>\n<p>Os cientistas trabalharam com culturas de rabdomiossarcoma, com c\u00e9lulas embrion\u00e1rias dos rins, com c\u00e9lulas HeLa e com fibroblastos de camundongo com resultados semelhantes. Com estes resultados, o uso de inibidores de autofagia em tratamentos oncol\u00f3gicos seria questionado. \u201cO fato de a priva\u00e7\u00e3o da glicose, um nutriente essencial, n\u00e3o levar \u00e0 autofagia nos obriga a repensar este mecanismo como resposta \u00e0 falta de nutrientes\u201d, destacou a doutora.<\/p>\n<p>Fonte: http:\/\/bioquimica-clinica.diariomedico.com\/2013\/10\/02\/area-cientifica\/especialidades\/bioquimica-clinica\/carencia-glucosa-celulas-inhibe-proceso-autofagia<\/p>\n<p>Foto: p\u00e1gina pessoal em\u00a0http:\/\/celldeath.wordpress.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>At\u00e9 agora, considerou-se que a falta de qualquer tipo de nutriente no organismo gerava o processo de autofagia nas c\u00e9lulas, mas um estudo recente demonstra que a falta de glicose n\u00e3o desencadeia este processo. As c\u00e9lulas ativam este mecanismo de prote\u00e7\u00e3o quando s\u00e3o privadas de nutrientes e iniciam um mecanismo para degradar seus org\u00e2nulos e [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":2699,"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":[3],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Car\u00eancia de glicose inibe processo de autofagia nas c\u00e9lulas - FuniBlogs - FUNIBER<\/title>\n<meta name=\"robots\" content=\"noindex, nofollow\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Car\u00eancia de glicose inibe processo de autofagia nas c\u00e9lulas - FuniBlogs - FUNIBER\" \/>\n<meta property=\"og:description\" content=\"At\u00e9 agora, considerou-se que a falta de qualquer tipo de nutriente no organismo gerava o processo de autofagia nas c\u00e9lulas, mas um estudo recente demonstra que a falta de glicose n\u00e3o desencadeia este processo. 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