{"id":4509,"date":"2014-03-05T11:34:29","date_gmt":"2014-03-05T11:34:29","guid":{"rendered":"https:\/\/ellipse.prbb.org\/?p=4509"},"modified":"2024-06-03T12:11:52","modified_gmt":"2024-06-03T10:11:52","slug":"el-peix-zebra-una-finestra-transparent-a-la-nostra-biologia","status":"publish","type":"post","link":"https:\/\/ellipse.prbb.org\/ca\/el-peix-zebra-una-finestra-transparent-a-la-nostra-biologia\/","title":{"rendered":"El peix zebra, una finestra transparent a la nostra biologia"},"content":{"rendered":"<p>Quan descrivim un paisatge vist a trav\u00e9s d&#8217;una finestra \u00e9s evident que, com m\u00e9s neta sigui la finestra, m\u00e9s detalls podrem veure. Prenent aix\u00f2 com una met\u00e0fora per al m\u00e8tode cient\u00edfic, la \u00abfinestra\u00bb seria el <strong>model biol\u00f2gic<\/strong> que hem triat per trobar les respostes a les nostres hip\u00f2tesis, i el \u00abpaisatge\u00bb, el <strong>proc\u00e9s<\/strong> que intentem entendre. Aquest s\u00edmil s&#8217;aplica b\u00e9 al <strong>peix zebra<\/strong>, conegut per la seva <strong>transpar\u00e8ncia \u00f2ptica durant l&#8217;embriog\u00e8nesi<\/strong>, una caracter\u00edstica que permet seguir el moviment de les seves c\u00e8l\u00b7lules o l&#8217;activitat dels seus gens en temps real.<\/p>\n<blockquote><p>\u00abLa transpar\u00e8ncia durant l\u2019embriog\u00e8nesi del peix zebra permet seguir el moviment de les seves c\u00e8l\u00b7lules o l\u2019activitat dels seus gens en temps real\u00bb<\/p><\/blockquote>\n<p>Per\u00f2 la seva transpar\u00e8ncia per ella mateixa no explica l\u2019inter\u00e8s creixent tant del m\u00f3n acad\u00e8mic com de la ind\u00fastria per aquest petit peix. El fet que sigui un vertebrat que <strong>comparteix el 87% dels gens implicats en malalties humanes<\/strong> tamb\u00e9 hi ajuda. O el fet de tenir un cor que batega, un cervell amb un complex cablejat i d\u2019altres \u00f2rgans amb una estructura cel\u00b7lular i una fisiologia similars a la nostra.<\/p>\n<p>A m\u00e9s, se\u2019n poden obtenir centenars de petits embrions simult\u00e0niament, la qual cosa permet la realitzaci\u00f3 de m\u00faltiples experiments en paral\u00b7lel. Per exemple, es pot provar la seguretat de diversos f\u00e0rmacs potencials de cop, simplement afegint les mol\u00e8cules en l&#8217;aigua on neden.<\/p>\n<blockquote><p>Es pot provar la seguretat de diversos f\u00e0rmacs potencials de cop, simplement afegint les mol\u00e8cules en l&#8217;aigua<\/p><\/blockquote>\n<p>Aquestes caracter\u00edstiques ja han fet del peix zebra un <strong>model ideal<\/strong> per a la comprensi\u00f3 de les bases del desenvolupament, la neuroci\u00e8ncia o el c\u00e0ncer. I per a la ind\u00fastria farmac\u00e8utica s\u00f3n la ra\u00f3 per la qual el peix zebra s&#8217;est\u00e0 convertint en una <strong>alternativa m\u00e9s barata i m\u00e9s r\u00e0pida<\/strong> als models de rosegadors en el descobriment precl\u00ednic de noves medicines.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El peix zebra s&#8217;ha convertit en un model ideal per a la comprensi\u00f3 de les bases del desenvolupament de les malalties humanes.<\/p>\n","protected":false},"author":9,"featured_media":4517,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30],"tags":[312,513,277,317,205,247],"new-type":[35],"class_list":["post-4509","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia-i-societat","tag-cancer-ca","tag-ciencia-al-descobert","tag-desenvolupament","tag-neurobiologia","tag-organismes-model","tag-peix-zebra","new-type-noticies"],"acf":[],"_links":{"self":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/4509","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/comments?post=4509"}],"version-history":[{"count":4,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/4509\/revisions"}],"predecessor-version":[{"id":4607,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/4509\/revisions\/4607"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media\/4517"}],"wp:attachment":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media?parent=4509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/categories?post=4509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/tags?post=4509"},{"taxonomy":"new-type","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/new-type?post=4509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}