{"id":469396,"date":"2024-12-16T06:26:57","date_gmt":"2024-12-16T03:26:57","guid":{"rendered":"https:\/\/analyse.optim.biz\/?p=469396"},"modified":"2024-12-16T06:26:57","modified_gmt":"2024-12-16T03:26:57","slug":"zeci-de-oameni-de-stiinta-printre-care-si-castigatori-de-nobel-cer-oprirea-cercetarii-bacteriilor-sintetice-care-pot-aduce-infectii-letale-in-randul-oamenilor-si-al-animalelor","status":"publish","type":"post","link":"https:\/\/analyse.optim.biz\/?p=469396","title":{"rendered":"Zeci de oameni de \u0219tiin\u021b\u0103, printre care \u0219i c\u00e2\u0219tig\u0103tori de Nobel, cer oprirea cercet\u0103rii bacteriilor sintetice, care pot aduce infec\u021bii letale \u00een r\u00e2ndul oamenilor \u0219i al animalelor"},"content":{"rendered":"<div class=\"post-content\">\n<p>\u201eUn risc f\u0103r\u0103 precedent pentru via\u021ba pe P\u0103m\u00e2nt\u201d. Cu aceste cuvinte 38 de oameni de \u0219tiin\u021b\u0103 de renume mondial (inclusiv c\u00e2\u021biva c\u00e2\u0219tig\u0103tori ai Premiului Nobel) cer, \u00eentr-un articol publicat \u00een revista The Science \u2013 care face referire la un raport de 300 de pagini \u2013 s\u0103 fie oprite cercet\u0103rile despre a\u0219a-numitele \u201ebacterii oglind\u0103\u201d, alc\u0103tuite din imagini \u00een oglind\u0103 ale moleculelor prezente \u00een natur\u0103 \u0219i subliniaz\u0103 necesitatea deschiderii unei dezbateri ample pe aceast\u0103 tem\u0103. Organismele sintetice, spun ei, ar putea s\u0103 se stabileasc\u0103 \u00een mediul \u00eenconjur\u0103tor \u0219i s\u0103 treac\u0103 de ap\u0103rarea imun\u0103 a fiin\u021belor vii, pun\u00e2nd oamenii, animalele \u0219i plantele \u00een pericol de infec\u021bii letale, potrivit Rador Radio Rom\u00e2nia.<\/p>\n<p>Cercet\u0103torii sus\u0163in c\u0103 este pu\u0163in probabil ca antibioticele existente s\u0103 fie eficiente \u00eempotriva acestor noi agen\u021bi patogeni crea\u021bi \u00een laborator.<\/p>\n<p>\u201eAmenin\u021barea este una f\u0103r\u0103 precedent\u201d, a declarat Vaughn Cooper, biolog evolu\u021bionist la Universitatea din Pittsburgh, pentru The Guardian. \u201eBacteriile oglind\u0103\u201d ar ocoli probabil multe r\u0103spunsuri ale sistemului imunitar uman, animal \u0219i vegetal \u0219i ar provoca infec\u021bii care s-ar r\u0103sp\u00e2ndi necontrolat. Din grupul de exper\u0163i face parte \u015fi Craig Venter, care \u00een anii 1990 a condus cercet\u0103rile asupra genomului uman, \u0219i c\u00e2\u0219tig\u0103torii Premiului Nobel Greg Winter (Universitatea din Cambridge) \u0219i Jack Szostak (Universitatea din Chicago). <\/p>\n<p>\u201eDac\u0103 nu apar dovezi conving\u0103toare c\u0103 \u201evia\u021ba \u00een oglind\u0103\u201d nu prezint\u0103 niciun pericol, credem c\u0103 bacteriile \u0219i alte organisme oglind\u0103, chiar dac\u0103 sunt echipate cu m\u0103suri de bior\u021binere proiectate, nu ar trebui create\u201d \u2013 scriu autorii \u00een Science. \u201ePrin urmare, recomand\u0103m s\u0103 nu autoriza\u021bi cercetarea \u0219i le cerem finan\u021batorilor s\u0103 nu o sus\u021bin\u0103.\u201d<\/p>\n<p>\u201e\u00cen virtutea chiralit\u0103\u021bii lor \/asimetriei structurale, n. ed.\/ inversate, \u201ebacteriile oglind\u0103\u201d ar putea evita multe ap\u0103r\u0103ri: ar fi rezistente intrinsec la infec\u021bia cu bacteriofagi (virusuri care infecteaz\u0103 bacteriile), ar putea fi rezistente la mul\u021bi pr\u0103d\u0103tori \u0219i la majoritatea antibioticelor. Acest lucru ar putea permite bacteriilor oglind\u0103 s\u0103 persiste \u00een afara gazdelor multicelulare, facilit\u00e2nd transmiterea\u201d.  <\/p>\n<p>\u201eLa animalele s\u0103n\u0103toase, bacteriile cu chiralitate natural\u0103 sunt \u00een general eliminate de ap\u0103rarea imunitar\u0103. Cu toate acestea, dac\u0103 r\u0103spunsul imun \u00eempotriva \u201ebacteriilor oglind\u0103\u201d este compromis, acestea s-ar putea replica \u00een gazd\u0103 \u0219i ar putea stabili o infec\u021bie. Replicarea necontrolat\u0103 a \u201ebacteriilor oglind\u0103\u201d \u00een \u021besuturile interne este probabil d\u0103un\u0103toare pentru organismul gazd\u0103 \u0219i poate fi letal\u0103\u201d.<\/p>\n<p>\u201eBacteriile oglind\u0103\u201d ar putea infecta organismele f\u0103r\u0103 a declan\u0219a un r\u0103spuns imunitar \u0219i ar putea provoca boli letale \u2013 scriu John Glass \u0219i Kate Adamala, exper\u021bi \u00een biologie sintetic\u0103 \u00een revista The Scientist. \u201eO \u201ebacterie oglind\u0103\u201d de neoprit, care se reproduce liber \u00een mediu, ar putea provoca consecin\u021be dezastruoase. Pentru binele umanit\u0103\u021bii \u0219i al \u0219tiin\u021bei \u00eens\u0103\u0219i, trebuie s\u0103 oprim acest tip de cercetare\u201d, conchid cercet\u0103torii.<\/p>\n<div class=\"code-block code-block-15\">\n<div class=\"ai-adb-hide\" data-ai-debug=\"15\">\n<h4>Urm\u0103re\u0219te mai jos produc\u021biile video ale G4Media:<\/h4>\n<\/div>\n<\/div>\n<\/div>\n<p> Source URL: https:\/\/www.g4media.ro\/zeci-de-oameni-de-stiinta-printre-care-si-castigatori-de-nobel-cer-oprirea-cercetarii-bacteriilor-sintetice-care-pot-aduce-infectii-letale-in-randul-oamenilor-si-al-animalelor.html<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u201eUn risc f\u0103r\u0103 precedent pentru via\u021ba pe P\u0103m\u00e2nt\u201d. Cu aceste cuvinte 38 de oameni de \u0219tiin\u021b\u0103 de renume mondial (inclusiv c\u00e2\u021biva c\u00e2\u0219tig\u0103tori ai Premiului Nobel) cer, \u00eentr-un articol publicat \u00een revista The Science \u2013 care face referire la un raport de 300 de pagini \u2013 s\u0103 fie oprite cercet\u0103rile despre a\u0219a-numitele \u201ebacterii oglind\u0103\u201d, alc\u0103tuite din [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":469397,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[24],"class_list":["post-469396","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-politics","tag-g4media"],"_links":{"self":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/469396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=469396"}],"version-history":[{"count":0,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/469396\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/media\/469397"}],"wp:attachment":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=469396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=469396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=469396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}