{"id":2255,"date":"2018-12-06T14:27:21","date_gmt":"2018-12-06T13:27:21","guid":{"rendered":"http:\/\/www.mc-praha.cz\/mcp\/?p=2255"},"modified":"2018-12-06T14:27:21","modified_gmt":"2018-12-06T13:27:21","slug":"vedci-vypestovali-lidske-vajicko","status":"publish","type":"post","link":"https:\/\/www.mc-praha.cz\/mcp\/vedci-vypestovali-lidske-vajicko\/","title":{"rendered":"V\u011bdci vyp\u011bstovali lidsk\u00e9 vaj\u00ed\u010dko"},"content":{"rendered":"<p><strong>V\u011bdc\u016fm z\u00a0Edinbursk\u00e9 univerzity se poda\u0159ilo \u201evyp\u011bstovat\u201c v\u00a0laborato\u0159i lidsk\u00fd oocyt (vaj\u00ed\u010dko). <\/strong><\/p>\n<p>Pojem vyp\u011bstovat zde ale nen\u00ed zcela p\u0159esn\u00fd, vaj\u00ed\u010dko v\u011bdci nechali dozr\u00e1t ze stadia tzv. primordi\u00e1ln\u00edho folikulu.<\/p>\n<p>Ka\u017ed\u00e1 \u017eena se rod\u00ed se z\u00e1rodky velk\u00e9ho mno\u017estv\u00ed vaj\u00ed\u010dek, kter\u00e9 postupn\u011b dozr\u00e1vaj\u00ed a jsou zodpov\u011bdn\u00e9 za menstrua\u010dn\u00ed cyklus po cel\u00e9 plodn\u00e9 obdob\u00ed \u017eeny. Tyto z\u00e1rodky se naz\u00fdvaj\u00ed pr\u00e1v\u011b primordi\u00e1ln\u00ed folikuly a proces r\u016fstu je u nich zah\u00e1jen obdob\u00edm puberty.<\/p>\n<p>Edinbursk\u00e9mu t\u00fdmu se povedlo odebrat primordi\u00e1ln\u00ed folikuly n\u011bkolika \u017een a v\u00a0laboratorn\u00edch podm\u00ednk\u00e1ch je nechat dozr\u00e1t a\u017e do stadia p\u0159ipraven\u00e9ho k\u00a0oplodn\u011bn\u00ed. A\u017e doposud bylo mo\u017en\u00e9 nechat dozr\u00e1t primordi\u00e1ln\u00ed folikuly my\u0161\u00ed, zralej\u0161\u00ed st\u00e1dia lidsk\u00fdch folikul\u016f \u010di vytvo\u0159it zral\u00fd oocyt z my\u0161\u00edch kmenov\u00fdch bun\u011bk. \u00dasp\u011bch Edinbursk\u00fdch v\u011bdc\u016f je tedy unik\u00e1tn\u00ed v\u00a0tom, \u017ee se povedlo nechat dozr\u00e1t lidsk\u00e1 a\u00a0z\u00e1rove\u0148 nejm\u00e9n\u011b zral\u00e1 stadia vaj\u00ed\u010dek (primordi\u00e1ln\u00ed folikuly).<\/p>\n<p>Pokud se potvrd\u00ed, \u017ee laboratorn\u011b dozr\u00e1l\u00e9 vaj\u00ed\u010dko je schopn\u00e9 um\u011bl\u00e9ho oplodn\u011bn\u00ed a v\u00fdvoje ve zdrav\u00e9 embryo, znamenalo by to pozitivn\u00ed zpr\u00e1vu pro mnoho onkologick\u00fdch pacientek. Cytostatick\u00e1 l\u00e9\u010dba m\u00e1 toti\u017e bohu\u017eel negativn\u00ed vliv nejen na rakovinn\u00e9 bu\u0148ky, na kter\u00e9 je c\u00edlena ale i na v\u0161echny rychle se d\u011bl\u00edc\u00ed bu\u0148ky lidsk\u00e9ho t\u011bla a z\u00e1rode\u010dn\u00e9 bu\u0148ky. U mu\u017e\u016f se tedy p\u0159ed n\u00e1stupem l\u00e9\u010dby doporu\u010duje zamra\u017een\u00ed spermatu, u \u017een pak zamra\u017een\u00ed oocyt\u016f. Aby do\u0161lo k\u00a0uvoln\u011bn\u00ed vaj\u00ed\u010dek, \u017eeny jsou stimulov\u00e1ny hormony. Uvoln\u011bn\u00e1 vaj\u00ed\u010dka jsou pak zamra\u017eena pro pot\u0159eby pozd\u011bj\u0161\u00edho um\u011bl\u00e9ho oplodn\u011bn\u00ed. Je ale mo\u017en\u00e9, \u017ee zamra\u017een\u00e1 vaj\u00ed\u010dka jsou nedostate\u010dn\u011b zral\u00e1, co\u017e a\u017e do sou\u010dasn\u00e9 doby p\u0159edstavovalo nep\u0159ekonatelnou p\u0159ek\u00e1\u017eku. Nad\u011bjn\u00fd by tento postup mohl b\u00fdt i pro d\u00edvky, kter\u00e9 jsou nuceny podstoupit onkologickou l\u00e9\u010dbu je\u0161t\u011b p\u0159ed n\u00e1stupem puberty.<\/p>\n<p>Zdroj: <a href=\"https:\/\/academic.oup.com\/molehr\/article\/24\/3\/135\/4829657\">https:\/\/academic.oup.com\/molehr\/article\/24\/3\/135\/4829657<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u011bdc\u016fm z\u00a0Edinbursk\u00e9 univerzity se poda\u0159ilo \u201evyp\u011bstovat\u201c v\u00a0laborato\u0159i lidsk\u00fd oocyt (vaj\u00ed\u010dko). Pojem vyp\u011bstovat zde ale nen\u00ed [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"_uag_custom_page_level_css":""},"categories":[1],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"boldthemes_grid":false,"boldthemes_grid_11":false,"boldthemes_grid_22":false,"boldthemes_grid_21":false,"boldthemes_grid_12":false,"boldthemes_latest_posts":false,"boldthemes_grid_gallery":false},"uagb_author_info":{"display_name":"Jbednar","author_link":"https:\/\/www.mc-praha.cz\/mcp\/author\/jbednar\/"},"uagb_comment_info":0,"uagb_excerpt":"V\u011bdc\u016fm z\u00a0Edinbursk\u00e9 univerzity se poda\u0159ilo \u201evyp\u011bstovat\u201c v\u00a0laborato\u0159i lidsk\u00fd oocyt (vaj\u00ed\u010dko). Pojem vyp\u011bstovat zde ale nen\u00ed [&hellip;]","post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts\/2255"}],"collection":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/comments?post=2255"}],"version-history":[{"count":1,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts\/2255\/revisions"}],"predecessor-version":[{"id":2257,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/posts\/2255\/revisions\/2257"}],"wp:attachment":[{"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/media?parent=2255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/categories?post=2255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mc-praha.cz\/mcp\/wp-json\/wp\/v2\/tags?post=2255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}