{"id":5310,"date":"2015-01-09T13:47:38","date_gmt":"2015-01-09T13:47:38","guid":{"rendered":"http:\/\/fefac.cat\/empresarial\/?p=5310"},"modified":"2015-01-09T13:47:38","modified_gmt":"2015-01-09T13:47:38","slug":"cientfics-descobreixen-una-nova-famlia-dantibi","status":"publish","type":"post","link":"https:\/\/fefac.cat\/empresarial\/cientfics-descobreixen-una-nova-famlia-dantibi\/","title":{"rendered":"Cient\u00edfics descobreixen una nova fam\u00edlia d\u2019antibi\u00f2tics que estaria lliure de resist\u00e8ncies"},"content":{"rendered":"<p>Un equip d&#39;investigadors ha identificat un nou antibi&ograve;tic d&#39;origen natural, extret del terra, que mostra una gran efectivitat contra algunes soques bacterianes molt comunes i perilloses que en les &uacute;ltimes d&egrave;cades havien generat resist&egrave;ncies dif&iacute;cils de tractar, com <em>Staphylococcus aureus,<\/em>&nbsp;<em>Mycobacterium tuberculosis<\/em>&nbsp;i&nbsp;<em>Clostridium difficile.&nbsp;<\/em>L&#39;han batejat com a Teixobactin.<\/p>\n<p>Els autors, procedents de diverses universitats dels Estats Units, Alemanya i el Canad&agrave;, afirmen que les proves amb ratolins han resultat satisfact&ograve;ries i confien que el producte pugui arribar al mercat en cinc o sis anys. L&#39;estudi s&#39;ha publicat a la revista&nbsp;<em>Nature<\/em>.<\/p>\n<p>Els investigadors no descarten que el producte tamb&eacute; pugui ocasionar resist&egrave;ncies en un futur, com ha passat amb altres famosos antibi&ograve;tics, per&ograve; insisteixen que podria funcionar satisfact&ograve;riament durant d&egrave;cades. De fet, Teixobactin mata els bacteris al destruir les parets de les seves c&egrave;l&middot;lules, un m&egrave;tode similar al que ja utilitzava la vancomicina, descoberta la d&egrave;cada dels anys 50 del segle passat i que es va mantenir sense problemes de resist&egrave;ncies fins als anys 90.<\/p>\n<p>No obstant, just per aquesta virtut, el producte t&eacute; un defecte col&middot;lateral: nom&eacute;s funciona contra els bacteris que no tenen parets cel&middot;lulars externes, les anomenades Gram-positives, per&ograve; no &eacute;s &uacute;til contra les Gram-negatives, que inclouen alguns de pat&ograve;gens molt preocupants, com&nbsp;<em>Klebsiella<\/em>,&nbsp;<em>E. coli<\/em>&nbsp;i&nbsp;<em>Pseudomones<\/em>. Els investigadors van trobar el Teixobactin revisant uns 10.000 compostos bacterians extrets del terra i cultivats d&#39;acord amb un m&egrave;tode patentat per la farmac&egrave;utica NovoBiotic.<\/p>\n<p><strong>Font: El Peri&oacute;dico de Catalunya&nbsp;<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un equip d&#39;investigadors ha identificat un nou antibi&ograve;tic d&#39;origen natural, extret del terra, que mostra una gran efectivitat contra algunes soques bacterianes molt comunes i perilloses que en les &uacute;ltimes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[11,12,13,14,15,101],"tags":[],"class_list":["post-5310","post","type-post","status-publish","format-standard","hentry","category-fefac","category-afb","category-afet","category-afell","category-agfe","category-sanitaria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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