{"id":37078,"date":"2018-06-11T11:15:41","date_gmt":"2018-06-11T08:15:41","guid":{"rendered":"http:\/\/realitatearutiera.ro\/?p=37078"},"modified":"2018-06-11T08:41:38","modified_gmt":"2018-06-11T05:41:38","slug":"descoperire-rara-a-unui-nou-antibiotic-intr-o-floare-comuna","status":"publish","type":"post","link":"https:\/\/realitatearutiera.ro\/?p=37078","title":{"rendered":"Descoperire rar\u0103 a unui nou antibiotic \u00eentr-o floare comun\u0103"},"content":{"rendered":"<p><strong>Consumul \u00een exces \u0219i prescrierea exagerat\u0103 au sl\u0103bit efectul binef\u0103c\u0103tor al antibioticelor. Consecin\u021ba &#8211; multe dintre ele au devenit inutile. Bacteriile au suferit muta\u021bii \u0219i reu\u0219esc acum s\u0103 opun\u0103 rezisten\u021b\u0103. Ca urmare, oamenii de \u0219tiin\u021b\u0103 sunt \u00een c\u0103utarea de noi antibiotice, capabile s\u0103 distrug\u0103 aceste bacterii superrezistente. Descoperirea recent\u0103 a unui antibiotic \u00een floarea de Regina nop\u021bii (Nicotiana alata) face s\u0103 renasc\u0103 multe speran\u021be.\u00a0<\/strong><\/p>\n<p>Medicii avertizeaz\u0103 de mult: dac\u0103 nu se face nimic, s-ar putea s\u0103 nu mai fim \u00een m\u0103sur\u0103 s\u0103 trat\u0103m o infec\u021bie banal\u0103 precum amigdalita sau faringita. Lumea are nevoie disperat\u0103 de noi antibiotice. De aceea, descoperirea f\u0103cut\u0103 de o echip\u0103 de cercet\u0103tori australieni reprezint\u0103 un progres major pentru medicin\u0103 \u00een lupta contra infec\u021biilor.<\/p>\n<p>Cercet\u0103torii universit\u0103\u021bii<a href=\"https:\/\/www.latrobe.edu.au\/news\/articles\/2018\/release\/la-trobes-infection-busting-discovery\" target=\"_blank\" rel=\"noopener\" data-skip-linkfix=\"1\">\u00a0La Trobe, din Melbourne, au reu\u0219it s\u0103 izoleze un agent antimicrobian (o peptid\u0103) \u00een florile unei plante ornamentale din familia tutunului: populara Regina nop\u021bii (Nicotiana alata)<\/a>. Oamenii de \u0219tiin\u021b\u0103 au descoperit c\u0103 planta se folose\u0219te de aceast\u0103 peptid\u0103 pentru a se proteja de infec\u021bii, iar acum vor s\u0103 o foloseasc\u0103 pentru crearea de noi antibiotice.<\/p>\n<p>\u00cen prezent, unul din opt decese este provocat, la nivel mondial, de o infec\u021bie, iar rata mortalit\u0103\u021bii ar urma s\u0103 fie \u0219i mai mare \u00een urm\u0103torii 30 de ani, pentru c\u0103 rezisten\u021ba la antibiotice, \u00een ritmul actual, va duce la anihilarea efectului acestor medicamente. De aceea este necesar\u0103 descoperirea de noi \u0219i noi antibiotice.<\/p>\n<p>\u00cens\u0103 \u00een 50 de ani, au ap\u0103rut pe pia\u021b\u0103 numai dou\u0103 noi clase de antibiotice. Tocmai de aceea cercet\u0103rile se intensific\u0103. S-au g\u0103sit poten\u021biale surse, cum ar fi veninul \u0219arpelui cu clopo\u021bei, laptele de ornitorinc, mierea, siropul de ar\u021bar, pielea de broasc\u0103, dar avantajul florii de Regina Nop\u021bii este c\u0103 agentul antimicrobian este utilizabil la om.<\/p>\n<p>Planta ornamental\u0103\u00a0<em>Nicotiana alata<\/em>\u00a0se protejeaz\u0103 de infec\u021bii produc\u00e2nd molecule antifungice. Cercet\u0103torii australieni au izolat peptida cunoscut\u0103 sub numele de NaD1, care s-a dovedit eficient\u0103 \u00eempotriva unui tip de microorganism pe care majoritatea antibioticelor nu reu\u0219esc s\u0103-l anihileze:\u00a0<strong><em>Candida albicans<\/em><\/strong>. Aceast\u0103 specie comun\u0103 de ciuperc\u0103 unicelular\u0103 se afl\u0103 \u0219i \u00een intestinul \u0219i cavitatea bucal\u0103 a omului, \u00eens\u0103, chiar dac\u0103 \u00een mod normal este inofeniv\u0103, poate reprezenta o amenin\u021bare pentru persoanele al c\u0103ror sistem imunitar este sl\u0103bit.<\/p>\n<p>Speciali\u0219tii cred c\u0103 este o descoperire important\u0103 \u0219i ar putea duce la dezvoltarea unei noi clase de medicamente antimicrobiene eficiente \u00een tratarea bolilor infec\u021bioase, cum ar fi stafilococul auriu multirezistent \u0219i infec\u021biile virale cu HIV, Zika sau febra denga \u0219i anumite encefalite.<\/p>\n<figure>\n<div class=\"img-responsive img-responsive-16by9\">sursa: digi24.ro<\/div>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Consumul \u00een exces \u0219i prescrierea exagerat\u0103 au sl\u0103bit efectul binef\u0103c\u0103tor al antibioticelor. Consecin\u021ba &#8211; multe dintre ele au devenit inutile.<\/p>\n","protected":false},"author":1,"featured_media":37079,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":""},"categories":[6],"tags":[],"class_list":["post-37078","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-social"],"jetpack_featured_media_url":"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2018\/06\/nicotiana-regina-noptii-alba_7737262.jpg?fit=640%2C448&ssl=1","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p61naM-9E2","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/37078","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=37078"}],"version-history":[{"count":2,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/37078\/revisions"}],"predecessor-version":[{"id":37082,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/37078\/revisions\/37082"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/media\/37079"}],"wp:attachment":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=37078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=37078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=37078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}