{"id":7416,"date":"2026-02-22T00:36:46","date_gmt":"2026-02-21T22:36:46","guid":{"rendered":"https:\/\/www.schooler.org.ua\/uk-uatesti-na-altsgejmer-prognozuvannja-vik-pochatku-ale-tochnist\/"},"modified":"2026-02-22T00:36:46","modified_gmt":"2026-02-21T22:36:46","slug":"uk-uatesti-na-altsgejmer-prognozuvannja-vik-pochatku-ale-tochnist","status":"publish","type":"post","link":"https:\/\/www.schooler.org.ua\/cs\/uk-uatesti-na-altsgejmer-prognozuvannja-vik-pochatku-ale-tochnist\/","title":{"rendered":"Alzheimerovy testy: P\u0159edv\u00edd\u00e1n\u00ed v\u011bku n\u00e1stupu, ale p\u0159esnost vyvol\u00e1v\u00e1 obavy"},"content":{"rendered":"

Nov\u00fd v\u00fdzkum ukazuje, \u017ee krevn\u00ed testy, kter\u00e9 detekuj\u00ed protein p-tau217, dok\u00e1\u017eou odhadnout, kdy se Alzheimerova choroba m\u016f\u017ee za\u010d\u00edt projevovat u lid\u00ed p\u0159ed<\/em> p\u0159\u00edznaky. Studie publikovan\u00e1 v Nature Medicine<\/em> pou\u017eila vzorky krve od v\u00edce ne\u017e 600 kognitivn\u011b zdrav\u00fdch dosp\u011bl\u00fdch ve v\u011bku 62\u201378 let k predikci na\u010dasov\u00e1n\u00ed n\u00e1stupu p\u0159\u00edznak\u016f s odchylkou 3\u20134 roky. <\/p>\n

I kdy\u017e je to slibn\u00e9, odborn\u00edci upozor\u0148uj\u00ed, \u017ee tyto testy je\u0161t\u011b nejsou p\u0159ipraveny pro \u0161irok\u00e9 klinick\u00e9 pou\u017eit\u00ed. Alzheimerova choroba je komplexn\u00ed onemocn\u011bn\u00ed, kter\u00e9 je ovlivn\u011bno genetikou, \u017eivotn\u00edm stylem a dal\u0161\u00edmi faktory, co\u017e zt\u011b\u017euje p\u0159esn\u00e9 p\u0159edpov\u011bdi. Testy zat\u00edm nejsou dostate\u010dn\u011b spolehliv\u00e9, aby bylo mo\u017en\u00e9 o pacientech individu\u00e1ln\u011b rozhodovat. <\/p>\n

Hlavn\u00ed poznatky:<\/strong>
\n– Krevn\u00ed testy dok\u00e1\u017eou s ur\u010ditou p\u0159esnost\u00ed odhadnout v\u011bk n\u00e1stupu Alzheimerovy choroby.
\n– U star\u0161\u00edch lid\u00ed s pozitivn\u00edmi v\u00fdsledky test\u016f se mohou projevit p\u0159\u00edznaky d\u0159\u00edve ne\u017e u mlad\u0161\u00edch lid\u00ed. Nap\u0159\u00edklad pozitivn\u00ed test ve v\u011bku 60 let m\u016f\u017ee p\u0159edpov\u011bd\u011bt p\u0159\u00edznaky o 20 let pozd\u011bji, ale pozitivn\u00ed test ve v\u011bku 80 let m\u016f\u017ee p\u0159edpov\u011bd\u011bt p\u0159\u00edznaky pouze o 10 let pozd\u011bji.
\n– Testy jsou levn\u011bj\u0161\u00ed a jednodu\u0161\u0161\u00ed ne\u017e tradi\u010dn\u00ed metody (spin\u00e1ln\u00ed tapy, PET skeny), ale st\u00e1le maj\u00ed sv\u00e1 omezen\u00ed. <\/p>\n

Aktu\u00e1ln\u011b schv\u00e1len\u00e9 krevn\u00ed testy (Lumipulse a Elecsys) jsou pro lidi, kte\u0159\u00ed ji\u017e<\/em> vykazuj\u00ed p\u0159\u00edznaky. Nov\u00e1 studie se zam\u011b\u0159uje na p\u0159edpov\u00edd\u00e1n\u00ed n\u00e1stupu onemocn\u011bn\u00ed u lid\u00ed bez p\u0159\u00edznak\u016f, co\u017e je kritick\u00e9 vzhledem k tomu, \u017ee Alzheimerova choroba se m\u016f\u017ee vyvinout deset nebo v\u00edce let, ne\u017e se kognitivn\u00ed poruchy projev\u00ed. <\/p>\n

Pro\u010d je to d\u016fle\u017eit\u00e9:<\/strong>
\nV\u010dasn\u00e9 odhalen\u00ed je st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed, proto\u017ee nov\u00e9 l\u00e9ky mohou zpomalit progresi onemocn\u011bn\u00ed, pokud jsou pou\u017eity dostate\u010dn\u011b v\u010das. V sou\u010dasn\u00e9 dob\u011b prob\u00edhaj\u00ed klinick\u00e9 studie, aby se zjistilo, zda tyto l\u00e9ky mohou dokonce p\u0159edch\u00e1zet<\/em> symptom\u016fm u rizikov\u00fdch lid\u00ed. <\/p>\n

Testy jsou v\u0161ak nedokonal\u00e9. Jin\u00e1 onemocn\u011bn\u00ed (onemocn\u011bn\u00ed ledvin, obezita) mohou zkreslit v\u00fdsledky, co\u017e vede k fale\u0161n\u011b pozitivn\u00edm nebo fale\u0161n\u011b negativn\u00edm v\u00fdsledk\u016fm. Chyba 3-4 let je podstatn\u00e1 p\u0159i finan\u010dn\u00edm nebo \u017eivotn\u00edm rozhodov\u00e1n\u00ed. <\/p>\n

Navzdory t\u011bmto v\u00fdhrad\u00e1m odborn\u00edci pova\u017euj\u00ed testy za u\u017eite\u010dn\u00e9 pro diagnostiku a podporu preventivn\u00edch opat\u0159en\u00ed, jako je cvi\u010den\u00ed, dieta a kognitivn\u00ed stimulace. Je pot\u0159eba dal\u0161\u00ed testov\u00e1n\u00ed na r\u016fzn\u00fdch populac\u00edch, ale studie p\u0159edstavuje krok k d\u0159\u00edv\u011bj\u0161\u00edmu z\u00e1sahu u t\u00e9to ni\u010div\u00e9 nemoci. <\/p>\n

\n

“Tyto krevn\u00ed testy jsou i nad\u00e1le cenn\u00e9 pro diagnostiku a pl\u00e1nov\u00e1n\u00ed l\u00e9\u010dby,” \u0159\u00edk\u00e1 klinick\u00fd neuropsycholog Corey Bolton a zd\u016fraz\u0148uje pot\u0159ebu dal\u0161\u00edho v\u00fdzkumu a opatrn\u00e9 interpretace v\u00fdsledk\u016f. <\/p>\n<\/blockquote>\n

Data studie jsou ve\u0159ejn\u011b dostupn\u00e1 pro nez\u00e1vislou anal\u00fdzu, co\u017e v\u00fdzkumn\u00edk\u016fm umo\u017e\u0148uje replikovat a up\u0159es\u0148ovat tato zji\u0161t\u011bn\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Nov\u00fd v\u00fdzkum ukazuje, \u017ee krevn\u00ed testy, kter\u00e9 detekuj\u00ed protein p-tau217, dok\u00e1\u017eou odhadnout, kdy se Alzheimerova choroba m\u016f\u017ee za\u010d\u00edt projevovat u lid\u00ed p\u0159ed p\u0159\u00edznaky. Studie publikovan\u00e1 v Nature Medicine pou\u017eila vzorky krve od v\u00edce ne\u017e 600 kognitivn\u011b zdrav\u00fdch dosp\u011bl\u00fdch ve v\u011bku 62\u201378 let k predikci na\u010dasov\u00e1n\u00ed n\u00e1stupu p\u0159\u00edznak\u016f s odchylkou 3\u20134 roky. I kdy\u017e je to […]<\/p>\n","protected":false},"author":1,"featured_media":7415,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":""},"categories":[1],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7416"}],"collection":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/comments?post=7416"}],"version-history":[{"count":0,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7416\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media\/7415"}],"wp:attachment":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media?parent=7416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/categories?post=7416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/tags?post=7416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}