{"id":5125,"date":"2013-05-18T12:52:33","date_gmt":"2013-05-18T10:52:33","guid":{"rendered":"http:\/\/www.invarena.cz\/?p=5125"},"modified":"2013-05-19T11:12:11","modified_gmt":"2013-05-19T09:12:11","slug":"5125","status":"publish","type":"post","link":"https:\/\/www.invarena.cz\/?p=5125","title":{"rendered":"V USA u\u010dinili prvn\u00ed krok k l\u00e9\u010db\u011b dosud nevyl\u00e9\u010diteln\u00fdch nemoc\u00ed"},"content":{"rendered":"<p><strong>Pr\u016flom v experiment\u00e1ln\u00ed medic\u00edn\u011b se poda\u0159il americk\u00fdm v\u011bdc\u016fm, kte\u0159\u00ed ozn\u00e1mili, \u017ee se jim poda\u0159ilo vyp\u011bstovat\u00a0lidsk\u00e9 embryon\u00e1ln\u00ed kmenov\u00e9 bu\u0148ky. Zpr\u00e1va vzbuzuje velk\u00e9 nad\u011bje, \u017ee se\u00a0 jednou pomoc\u00ed t\u011bchto bun\u011bk budou l\u00e9\u010dit dosud nevyl\u00e9\u010diteln\u00e1 onemocn\u011bn\u00ed. <\/strong><\/p>\n<p><!--more--><\/p>\n<p>Za skute\u010dn\u00fd pr\u016flom z hlediska experiment\u00e1ln\u00ed biologie ozna\u010dil profesor Josef Syka z \u00dastavu experiment\u00e1ln\u00ed medic\u00edny Akademie v\u011bd \u010cR v\u00fdsledky pr\u00e1ce v\u011bdc\u016f z americk\u00e9 Oregonsk\u00e9 univerzity, kte\u0159\u00ed jako prvn\u00ed z\u00edskali kmenov\u00e9 bu\u0148ky z klonovan\u00fdch lidsk\u00fdch embry\u00ed.<\/p>\n<p>&#8222;Mnoh\u00e9 t\u00fdmy ze sv\u011bta se o takov\u00fd v\u00fdsledek sna\u017eily ji\u017e od roku 1997, to znamen\u00e1 od narozen\u00ed prvn\u00edho ov\u010d\u00edho klonu, ovce Dolly,&#8220; \u0159ekl Syka.<\/p>\n<p>V\u011bdci vyvinuli lidsk\u00e9 embryon\u00e1ln\u00ed kmenov\u00e9 bu\u0148ky, co\u017e p\u0159edstavuje jak\u00fdsi svat\u00fd gr\u00e1l v embryon\u00e1ln\u00ed biologii: jde o praz\u00e1klad, z n\u011bho\u017e vykl\u00ed\u010d\u00ed v\u00edce ne\u017e 200 druh\u016f speci\u00e1ln\u00edch bun\u011bk vytv\u00e1\u0159ej\u00edc\u00edch r\u016fzn\u00e9 tk\u00e1n\u011b, kter\u00e9 pak tvo\u0159\u00ed lidsk\u00e9 t\u011blo.<\/p>\n<p>Zpr\u00e1va podle Syky vzbuzuje velk\u00e9 nad\u011bje, \u017ee bude jednou mo\u017en\u00e9 z takto vznikl\u00fdch embryon\u00e1ln\u00edch kmenov\u00fdch bun\u011bk vytv\u00e1\u0159et v laborato\u0159i tk\u00e1n\u011b a pozd\u011bji i org\u00e1ny, kter\u00e9 u jedince, z n\u011bho\u017e poch\u00e1z\u00ed t\u011bln\u00ed bu\u0148ka, nevyvolaj\u00ed negativn\u00ed imunitn\u00ed reakce, a stanou se tak novou nad\u011bj\u00ed pro budoucnost transplantac\u00ed.<\/p>\n<p>V\u00fdsledky b\u00e1d\u00e1n\u00ed mohou v\u00e9st k l\u00e9\u010db\u011b n\u011bkter\u00fdch dosud nevyl\u00e9\u010diteln\u00fdch chorob.<\/p>\n<p>Vyvinut\u00e9 lidsk\u00e9 embryon\u00e1ln\u00ed kmenov\u00e9 bu\u0148ky maj\u00ed potenci\u00e1l l\u00e9\u010dit \u0161irok\u00e9 spektrum onemocn\u011bn\u00ed nebo poran\u011bn\u00ed, po\u010d\u00ednaje <strong>diabetem<\/strong>, <strong>jatern\u00edm a srde\u010dn\u00edm selh\u00e1n\u00edm, po\u0161kozen\u00edm zub\u016f, kost\u00ed, chrupavek a \u0161lach, ko\u017en\u00edmi defekt<\/strong>y a kone\u010dn\u011b onemocn\u011bn\u00edmi mozku a m\u00edchy jako je <strong>Parkinsonova choroba, Alzheimerova choroba, amyotrofick\u00e1 later\u00e1ln\u00ed skleroza, po\u0161kozen\u00ed mozku nap\u0159. po mrtvici a ochrnut\u00ed po p\u0159eru\u0161en\u00ed m\u00edchy<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>Zpr\u00e1va o \u00fasp\u011b\u0161n\u00e9m vytvo\u0159en\u00ed lidsk\u00fdch embryon\u00e1ln\u00edch klonovan\u00fdch bun\u011bk mu p\u0159ipomn\u011bla ale i jihokorejsk\u00e9ho badatele Hwanga U-soka. Ten stejnou zpr\u00e1vu jako Mitalipov uve\u0159ejnil ji\u017e v roce 2004, a pak se uk\u00e1zalo, \u017ee se jednalo o kolos\u00e1ln\u00ed podvod. Mezit\u00edm bylo v\u011bdeck\u00fdmi kruhy p\u0159ijato mnoho opat\u0159en\u00ed, aby se podobn\u00fd podvod ji\u017e nemohl opakovat,&#8220; dodal Syka.<\/p>\n<p>Zpr\u00e1vu o b\u00e1d\u00e1n\u00ed americk\u00fdch v\u011bdc\u016f uve\u0159ejnil ve st\u0159edu odborn\u00fd \u010dasopis Cell, z\u00e1rove\u0148 ale obnovil diskuse o nebezpe\u010d\u00ed lidsk\u00e9ho klonov\u00e1n\u00ed. Je pochopiteln\u00e9, \u017ee zpr\u00e1va vyvol\u00e1v\u00e1 obavy z mo\u017en\u00fdch etick\u00fdch negativn\u00edch n\u00e1sledk\u016f &#8211; fakticky je to dal\u0161\u00ed mo\u017en\u00fd krok k reproduk\u010dn\u00edmu klonov\u00e1n\u00ed, uvedl p\u0159edn\u00ed \u010desk\u00fd v\u011bdec Syka.<\/p>\n<p>Nelze se proto podle n\u011bj divit \u0159ad\u011b negativn\u00edch reakc\u00ed r\u016fzn\u00fdch mor\u00e1ln\u00edch autorit. P\u0159ipomn\u011bl, \u017ee reproduk\u010dn\u00ed klonov\u00e1n\u00ed je zak\u00e1z\u00e1no v mnoha st\u00e1tech a z\u00e1konem je zak\u00e1z\u00e1no i v \u010cesku.<\/p>\n<p>Katolick\u00e1 c\u00edrkev proti americk\u00e9mu objevu protestuje, za nezodpov\u011bdn\u00fd ozna\u010dili postup oregonsk\u00fdch pr\u016fkopn\u00edk\u016f i n\u011bkte\u0159\u00ed jejich kolegov\u00e9, uvedly zahrani\u010dn\u00ed agentury.<\/p>\n<p>invArena<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Pr\u016flom v experiment\u00e1ln\u00ed medic\u00edn\u011b se poda\u0159il americk\u00fdm v\u011bdc\u016fm, kte\u0159\u00ed ozn\u00e1mili, \u017ee se jim poda\u0159ilo vyp\u011bstovat\u00a0lidsk\u00e9 embryon\u00e1ln\u00ed kmenov\u00e9 bu\u0148ky. Zpr\u00e1va vzbuzuje velk\u00e9 nad\u011bje, \u017ee se\u00a0 jednou <a class=\"mh-excerpt-more\" href=\"https:\/\/www.invarena.cz\/?p=5125\" title=\"V USA u\u010dinili prvn\u00ed krok k l\u00e9\u010db\u011b dosud nevyl\u00e9\u010diteln\u00fdch nemoc\u00ed\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-5125","post","type-post","status-publish","format-standard","hentry","category-zdravi"],"_links":{"self":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/5125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5125"}],"version-history":[{"count":0,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/5125\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}