{"id":4259,"date":"2021-06-25T01:45:24","date_gmt":"2021-06-25T01:45:24","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=4259"},"modified":"2021-06-25T01:45:24","modified_gmt":"2021-06-25T01:45:24","slug":"womens-brains-stay-younger-longer","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/neuroscience\/womens-brains-stay-younger-longer\/","title":{"rendered":"\u017densk\u00fd mozek: z\u016fst\u00e1v\u00e1 d\u00e9le mlad\u0161\u00ed"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u017densk\u00fd mozek: z\u016fst\u00e1v\u00e1 d\u00e9le mlad\u0161\u00ed<\/h2>\n\n<h2 class=\"wp-block-heading\">St\u00e1rnut\u00ed mozku a rozd\u00edly zalo\u017een\u00e9 na pohlav\u00ed<\/h2>\n\n<p>Jak st\u00e1rneme, na\u0161e mozky proch\u00e1zej\u00ed zm\u011bnami, kter\u00e9 mohou ovlivnit na\u0161e kognitivn\u00ed funkce. Nov\u00fd v\u00fdzkum v\u0161ak nazna\u010duje, \u017ee mozky \u017een mohou st\u00e1rnout jinak ne\u017e mozky mu\u017e\u016f, p\u0159i\u010dem\u017e \u017eensk\u00e9 mozky vypadaj\u00ed, \u017ee z\u016fst\u00e1vaj\u00ed d\u00e9le mlad\u0161\u00ed.<\/p>\n\n<p>V\u011bdci z l\u00e9ka\u0159sk\u00e9 fakulty Washingtonsk\u00e9 univerzity v St. Louis provedli studii se 121 \u017eenami a 84 mu\u017ei ve v\u011bku 20 a\u017e 82 let. K m\u011b\u0159en\u00ed metabolick\u00e9 aktivity v mozku, co\u017e m\u016f\u017ee indikovat hladiny energie v mozku, pou\u017eili skeny zobrazov\u00e1n\u00ed mozku.<\/p>\n\n<p>V\u00fdzkumn\u00edci zjistili, \u017ee \u017eensk\u00e9 mozky neust\u00e1le produkovaly v\u00edce energie ne\u017e mu\u017esk\u00e9 mozky, bez ohledu na v\u011bk. To nazna\u010duje, \u017ee \u017eensk\u00e9 mozky mohou b\u00fdt metabolicky aktivn\u011bj\u0161\u00ed, co\u017e by mohlo p\u0159isp\u00edvat k jejich zjevn\u011b mlad\u0161\u00edmu vzhledu.<\/p>\n\n<h2 class=\"wp-block-heading\">Implikace pro kognitivn\u00ed funkce<\/h2>\n\n<p>P\u0159edchoz\u00ed studie zjistily, \u017ee star\u0161\u00ed \u017eeny \u010dasto dosahuj\u00ed lep\u0161\u00edch v\u00fdsledk\u016f v testech uva\u017eov\u00e1n\u00ed, pam\u011bti a \u0159e\u0161en\u00ed probl\u00e9m\u016f ne\u017e mu\u017ei stejn\u00e9ho v\u011bku. P\u0159esto\u017ee nen\u00ed jasn\u00e9, zda to p\u0159\u00edmo souvis\u00ed s metabolismem mozku, nov\u00fd v\u00fdzkum nazna\u010duje, \u017ee by to mohl b\u00fdt p\u0159isp\u00edvaj\u00edc\u00ed faktor.<\/p>\n\n<h2 class=\"wp-block-heading\">V\u00fdvoj mozku a puberta<\/h2>\n\n<p>V\u00fdzkumn\u00edci spekuluj\u00ed, \u017ee rozd\u00edly ve v\u00fdvoji mozku b\u011bhem puberty mohou p\u0159ipravit p\u016fdu pro to, jak\u00fdm zp\u016fsobem mozky mu\u017e\u016f a \u017een st\u00e1rnou odli\u0161n\u011b. Domn\u00edvaj\u00ed se, \u017ee \u017eensk\u00e9 mozky mohou b\u011bhem dosp\u00edv\u00e1n\u00ed dos\u00e1hnout mlad\u0161\u00edho stavu a tento stav si udr\u017eet po celou dobu dosp\u011blosti.<\/p>\n\n<h2 class=\"wp-block-heading\">Zranitelnost a odolnost<\/h2>\n\n<p>I kdy\u017e m\u00edt d\u00e9le mlad\u0161\u00ed mozek m\u016f\u017ee poskytovat n\u011bkter\u00e9 kognitivn\u00ed v\u00fdhody, mohlo by to tak\u00e9 p\u0159edstavovat ur\u010dit\u00e9 zranitelnosti. Nap\u0159\u00edklad mlad\u0161\u00ed mozek m\u016f\u017ee b\u00fdt n\u00e1chyln\u011bj\u0161\u00ed k ur\u010dit\u00fdm typ\u016fm po\u0161kozen\u00ed mozku nebo onemocn\u011bn\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Budouc\u00ed v\u00fdzkum<\/h2>\n\n<p>V\u00fdzkumn\u00edci pl\u00e1nuj\u00ed pokra\u010dovat ve studiu st\u00e1rnut\u00ed mozku u mu\u017e\u016f a \u017een v pr\u016fb\u011bhu \u010dasu, aby zjistili, zda maj\u00ed jedinci s \u201emlad\u0161\u00edmi mozky\u201c men\u0161\u00ed pravd\u011bpodobnost, \u017ee budou s p\u0159ib\u00fdvaj\u00edc\u00edm v\u011bkem trp\u011bt kognitivn\u00edm poklesem. Doufaj\u00ed tak\u00e9, \u017ee identifikuj\u00ed konkr\u00e9tn\u00ed faktory, kter\u00e9 p\u0159isp\u00edvaj\u00ed k rozd\u00edl\u016fm zalo\u017een\u00fdch na pohlav\u00ed ve st\u00e1rnut\u00ed mozku.<\/p>\n\n<h2 class=\"wp-block-heading\">Dopl\u0148uj\u00edc\u00ed informace<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><strong>Pozitronov\u00e1 emisn\u00ed tomografie (PET)<\/strong> je l\u00e9ka\u0159sk\u00e1 zobrazovac\u00ed technika, kter\u00e1 m\u011b\u0159\u00ed metabolickou aktivitu v mozku.<\/li>\n<li><strong>Magnetick\u00e1 rezonance (MRI)<\/strong> je l\u00e9ka\u0159sk\u00e1 zobrazovac\u00ed technika, kter\u00e1 vytv\u00e1\u0159\u00ed podrobn\u00e9 sn\u00edmky mozku a dal\u0161\u00edch t\u011blesn\u00fdch struktur.<\/li>\n<li><strong>Algoritmus<\/strong> je sada pokyn\u016f, kter\u00e9 po\u010d\u00edta\u010d n\u00e1sleduje k proveden\u00ed \u00fakolu.<\/li>\n<li><strong>Strojov\u00e9 u\u010den\u00ed<\/strong> je typ um\u011bl\u00e9 inteligence, kter\u00e1 umo\u017e\u0148uje po\u010d\u00edta\u010d\u016fm u\u010dit se z dat bez explicitn\u00edho programov\u00e1n\u00ed.<\/li>\n<li><strong>Neurozobrazov\u00e1n\u00ed<\/strong> je pou\u017eit\u00ed l\u00e9ka\u0159sk\u00fdch zobrazovac\u00edch technik ke studiu mozku a nervov\u00e9ho syst\u00e9mu.<\/li>\n<li><strong>Kognitivn\u00ed funkce<\/strong> se vztahuje k ment\u00e1ln\u00edm schopnostem, kter\u00e9 n\u00e1m umo\u017e\u0148uj\u00ed myslet, u\u010dit se a pamatovat si.<\/li>\n<li><strong>Demence<\/strong> je obecn\u00fd pojem pro pokles kognitivn\u00edch funkc\u00ed, kter\u00fd je natolik z\u00e1va\u017en\u00fd, \u017ee naru\u0161uje ka\u017edodenn\u00ed \u010dinnosti.<\/li>\n<li><strong>Alzheimerova choroba<\/strong> a <strong>Parkinsonova choroba<\/strong> jsou dva b\u011b\u017en\u00e9 typy demence.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\u017densk\u00fd mozek: z\u016fst\u00e1v\u00e1 d\u00e9le mlad\u0161\u00ed St\u00e1rnut\u00ed mozku a rozd\u00edly zalo\u017een\u00e9 na pohlav\u00ed Jak st\u00e1rneme, na\u0161e mozky proch\u00e1zej\u00ed zm\u011bnami, kter\u00e9 mohou ovlivnit na\u0161e kognitivn\u00ed funkce. Nov\u00fd v\u00fdzkum v\u0161ak nazna\u010duje, \u017ee mozky&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[411],"tags":[4568,7795,7796,7794,7009],"class_list":["post-4259","post","type-post","status-publish","format-standard","hentry","category-neuroscience","tag-cognitive-function","tag-neurodiversity","tag-sex-based-differences","tag-brain-aging","tag-womens-health"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=4259"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4259\/revisions"}],"predecessor-version":[{"id":4260,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4259\/revisions\/4260"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=4259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=4259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=4259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}