{"id":159980,"date":"2026-08-24T13:22:22","date_gmt":"2026-08-24T13:22:22","guid":{"rendered":"https:\/\/www.europesays.com\/sk\/159980\/"},"modified":"2026-08-24T13:22:22","modified_gmt":"2026-08-24T13:22:22","slug":"tento-bezny-vitamin-vedci-spojili-s-o-13-lepsim-kognitivnym-skore-vosveteit-sk","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/sk\/159980\/","title":{"rendered":"Tento be\u017en\u00fd vitam\u00edn vedci spojili s o 13 % lep\u0161\u00edm kognit\u00edvnym sk\u00f3re | Vosveteit.sk"},"content":{"rendered":"

Probl\u00e9my so sp\u00e1nkom a zhor\u0161ovanie pam\u00e4ti s vekom<\/a> sa u star\u0161\u00edch \u013eud\u00ed objavuj\u00fa pomerne \u010dasto. Ke\u010f sa v\u0161ak poruchy sp\u00e1nku stretn\u00fa s miernou kognit\u00edvnou poruchou, riziko \u010fal\u0161ieho kognit\u00edvneho poklesu rastie. V\u00fdskumn\u00edci z Emory University<\/a> preto sk\u00famali, \u010di m\u00f4\u017ee v tejto f\u00e1ze hra\u0165 \u00falohu aj vitam\u00edn D.<\/p>\n

\u013dudia, ktor\u00ed denne u\u017e\u00edvali aspo\u0148 5 000 IU vitam\u00ednu D, dosiahli v kognit\u00edvnom teste MoCA o viac ako 13 percent vy\u0161\u0161ie sk\u00f3re ne\u017e t\u00ed, ktor\u00ed vitam\u00edn D denne neu\u017e\u00edvali. \u0160t\u00fadia v\u0161ak uk\u00e1zala iba s\u00favislos\u0165, nie pr\u00ed\u010dinu.<\/p>\n

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Odoberaj Vosveteit.sk cez Telegram a prihl\u00e1s sa k odberu spr\u00e1v
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Pri miernej kognit\u00edvnej poruche m\u00e1 probl\u00e9m so sp\u00e1nkom takmer ka\u017ed\u00fd druh\u00fd<\/p>\n

\u0160t\u00fadia zah\u0155\u0148ala 54 dospel\u00fdch s diagnostikovanou alebo predpokladanou miernou kognit\u00edvnou poruchou a s\u00fa\u010dasne naru\u0161en\u00fdm sp\u00e1nkom. Priemern\u00fd vek \u00fa\u010dastn\u00edkov bol 67,2 roka. Probl\u00e9my so sp\u00e1nkom vedci ur\u010dovali pomocou \u0161tandardizovan\u00fdch dotazn\u00edkov Pittsburgh Sleep Quality Index a Epworth Sleepiness Scale.<\/p>\n

Mierna kognit\u00edvna porucha, zn\u00e1ma ako MCI, je stav medzi be\u017en\u00fdmi zmenami kognit\u00edvnych schopnost\u00ed pri starnut\u00ed a demenciou. Diagn\u00f3za MCI neznamen\u00e1 automatick\u00fd prechod do demencie, zvy\u0161uje v\u0161ak jeho pravdepodobnos\u0165. Sp\u00e1nkov\u00e9 probl\u00e9my s\u00fa v tejto skupine \u010dast\u00e9. Pod\u013ea \u00fadajov citovan\u00fdch autormi nimi trp\u00ed pribli\u017ene 36 a\u017e 46 percent \u013eud\u00ed s MCI, pod\u013ea toho, ak\u00fdm sp\u00f4sobom sa kvalita sp\u00e1nku meria.<\/p>\n

\"demencia-nastup-demencie\"\"demencia-nastup-demencie\"Zdroj: Pixel-Shot \/ shutterstock.com a Semnic \/ shutterstock.com, kol\u00e1\u017e Vedavovrecku.sk<\/p>\n

Vz\u0165ah medzi sp\u00e1nkom a kognit\u00edvnym v\u00fdkonom m\u00f4\u017ee fungova\u0165 oboma smermi. Naru\u0161en\u00fd sp\u00e1nok sa sp\u00e1ja s neuroz\u00e1palom aj hromaden\u00edm amyloidu beta, teda prote\u00ednu, ktor\u00e9ho ukladanie v mozgu s\u00favis\u00ed s Alzheimerovou chorobou<\/a>. Oto\u010di\u0165 sa to m\u00f4\u017ee aj opa\u010dne: samotn\u00e1 Alzheimerova choroba dok\u00e1\u017ee sp\u00e1nkov\u00e9 cykly v\u00fdrazne naru\u0161i\u0165. Pribli\u017ene polovica \u013eud\u00ed so stredne \u0165a\u017ekou a\u017e \u0165a\u017ekou Alzheimerovou chorobou m\u00e1 pod\u013ea \u00fadajov citovan\u00fdch Emory University probl\u00e9my so sp\u00e1nkom. Vitam\u00edn D vedcov zaujal aj preto, \u017ee okrem svalov a nervov s\u00favis\u00ed so sp\u00e1nkov\u00fdm cyklom.<\/p>\n

Neprehliadni
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\"V\"V <\/p>\n

\n\t\t\t\t\tVIDEO: Tak\u00fdto z\u00e1pas neuvid\u00ed\u0161 ani v Mortal Kombat. Robot odkopol s\u00faperovi hlavu, ten bojoval \u010falej <\/p>\n

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Ni\u017e\u0161ie d\u00e1vky rozdiel neurobili. Hranica sa objavila a\u017e pri 5 000 IU<\/p>\n

K\u013e\u00fa\u010dov\u00fd detail spo\u010d\u00edva v d\u00e1vkovan\u00ed. K\u00fdm odpor\u00fa\u010dan\u00fd denn\u00fd pr\u00edjem vitam\u00ednu D pre v\u00e4\u010d\u0161inu dospel\u00fdch sa pohybuje okolo 600 a\u017e 800 IU v z\u00e1vislosti od veku, vy\u0161\u0161ie kognit\u00edvne sk\u00f3re vedci zaznamenali pri \u00fa\u010dastn\u00edkoch, ktor\u00ed u\u017e\u00edvali najmenej 5 000 IU denne. Pri ni\u017e\u0161\u00edch d\u00e1vkach sa \u0161tatisticky v\u00fdznamn\u00e1 s\u00favislos\u0165 s v\u00fdsledkami MoCA neobjavila.<\/p>\n

\"vitamin\"vitaminZdroj: VadimVasenin \/ depositphotos.com<\/a><\/p>\n

V\u00fdskum v\u0161ak nedokazuje, \u017ee vy\u0161\u0161ie d\u00e1vky automaticky znamenaj\u00fa lep\u0161\u00ed v\u00fdkon. Vedci \u00fa\u010dastn\u00edkom vitam\u00edn D nepride\u013eovali. Zis\u0165ovali, ko\u013eko ho pod\u013ea vlastn\u00fdch slov u\u017e\u00edvaj\u00fa, a tieto \u00fadaje porovnali s v\u00fdsledkami kognit\u00edvneho testu.<\/p>\n

Kognit\u00edvny v\u00fdkon hodnotili pomocou Montreal Cognitive Assessment, skr\u00e1tene MoCA. Ide o \u0161tandardizovan\u00fd skr\u00edningov\u00fd test, ktor\u00fd preveruje pam\u00e4\u0165, pozornos\u0165, jazyk, orient\u00e1ciu a \u010fal\u0161ie schopnosti. MoCA v\u0161ak s\u00e1m osebe Alzheimerovu chorobu nediagnostikuje.<\/p>\n

Regresn\u00fd model po\u010d\u00edtal s vekom, pohlav\u00edm, BMI<\/a>, vzdelan\u00edm aj typom vitam\u00ednu D. Pri d\u00e1vke najmenej 5 000 IU denne vy\u0161lo MoCA sk\u00f3re v priemere o 3,78 bodu vy\u0161\u0161ie ne\u017e u \u013eud\u00ed, ktor\u00ed vitam\u00edn D denne neu\u017e\u00edvali. Emory University tento rozdiel prepo\u010d\u00edtala na viac ako 13 percent. Autori \u0161t\u00fadie ho v abstrakte opisuj\u00fa ako \u201emarginally significant\u201c, teda hrani\u010dne \u0161tatisticky v\u00fdznamn\u00fd.<\/p>\n

V\u00fdsledky \u0161t\u00fadie vy\u0161li v \u010dasopise Sleep Medicine<\/a>. S vy\u0161\u0161\u00edm sk\u00f3re MoCA bolo spojen\u00e9 aj vysoko\u0161kolsk\u00e9 vzdelanie. Prekvapivo sa podobn\u00e1 s\u00favislos\u0165 objavila aj pri nadv\u00e1he. Pri vzorke len 54 \u013eud\u00ed v\u0161ak z t\u00fdchto ved\u013eaj\u0161\u00edch v\u00fdsledkov nemo\u017eno robi\u0165 \u0161ir\u0161ie z\u00e1very.<\/p>\n

Vedci porovnali D2 a D3. Rozdiel nena\u0161li<\/p>\n

V\u00fdskumn\u00edci sledovali aj formu vitam\u00ednu D, ktor\u00fa \u00fa\u010dastn\u00edci u\u017e\u00edvali. D3 vznik\u00e1 prirodzene v ko\u017ei po vystaven\u00ed slne\u010dn\u00e9mu \u017eiareniu a nach\u00e1dza sa najm\u00e4 v \u017eivo\u010d\u00ed\u0161nych zdrojoch. D2 poch\u00e1dza najm\u00e4 z h\u00fab a niektor\u00fdch rastlinn\u00fdch zdrojov.<\/p>\n

\"vitamin\"vitaminZdroj: Unsplash (Matheus Vinicius)<\/a><\/p>\n

Medzi \u013eu\u010fmi u\u017e\u00edvaj\u00facimi D2 a D3 vedci nezistili \u0161tatisticky v\u00fdznamn\u00fd rozdiel v kognit\u00edvnom sk\u00f3re. Z tejto malej observa\u010dnej \u0161t\u00fadie sa v\u0161ak ned\u00e1 ur\u010di\u0165, \u010di s\u00fa obe formy z poh\u013eadu kogn\u00edcie skuto\u010dne rovnocenn\u00e9. Na tak\u00e9to porovnanie by musela by\u0165 \u0161t\u00fadia navrhnut\u00e1 inak a zah\u0155\u0148a\u0165 podstatne viac \u013eud\u00ed.<\/p>\n

V\u00fdsledok stoj\u00ed na \u00fadajoch od iba 54 \u013eud\u00ed<\/p>\n

\u0160t\u00fadia zah\u0155\u0148ala iba 54 \u013eud\u00ed a mala prierezov\u00fd dizajn. Vedci teda nesledovali \u00fa\u010dastn\u00edkov pred za\u010diatkom u\u017e\u00edvania vitam\u00ednu D a po \u0148om. Porovnali ich aktu\u00e1lne u\u017e\u00edvanie doplnkov s v\u00fdsledkom kognit\u00edvneho testu v rovnakom obdob\u00ed.<\/p>\n

Z t\u00fdchto d\u00e1t nemo\u017eno vyvodi\u0165 kauzalitu. Vy\u0161\u0161ie sk\u00f3re mohlo odzrkad\u013eova\u0165 aj in\u00e9 rozdiely medzi \u013eu\u010fmi, ktor\u00ed u\u017e\u00edvali vysok\u00e9 d\u00e1vky vitam\u00ednu D, a ostatn\u00fdmi \u00fa\u010dastn\u00edkmi. Pr\u00ed\u010dinn\u00e1 s\u00favislos\u0165 zatia\u013e preuk\u00e1zan\u00e1 nebola. Presn\u00fa d\u00e1vku v\u00fdskumn\u00edci ani laborat\u00f3rne neoverovali, \u00fa\u010dastn\u00edci ju uv\u00e1dzali sami v dotazn\u00edku.<\/p>\n

Pod\u013ea autorov ide napriek tomu o prv\u00fa \u0161t\u00fadiu zameran\u00fa priamo na \u013eud\u00ed, ktor\u00ed maj\u00fa s\u00fa\u010dasne miernu kognit\u00edvnu poruchu aj probl\u00e9my so sp\u00e1nkom. Star\u0161ie pr\u00e1ce sk\u00famali vitam\u00edn D, sp\u00e1nok a kognit\u00edvny v\u00fdkon preva\u017ene oddelene. Ani doteraj\u0161ie v\u00fdsledky v\u00fdskumu vitam\u00ednu D a kogn\u00edcie pritom nie s\u00fa jednotn\u00e9.<\/p>\n

\u201eU star\u0161\u00edch dospel\u00fdch so sp\u00e1nkov\u00fdmi poruchami a miernou kognit\u00edvnou poruchou m\u00f4\u017ee \u00eds\u0165 o d\u00f4le\u017eit\u00e9 obdobie na intervenciu, ke\u010f sa kognit\u00edvne zmeny len za\u010d\u00ednaj\u00fa objavova\u0165, no st\u00e1le existuje priestor na podporu zdravia mozgu,\u201c hovor\u00ed Victoria Pak, senior autorka \u0161t\u00fadie a docentka na Nell Hodgson Woodruff School of Nursing Emory University.<\/p>\n

5 000 IU denne je nad be\u017en\u00fdm odpor\u00fa\u010dan\u00edm<\/p>\n

V\u00fdsledok je zauj\u00edmav\u00fd najm\u00e4 t\u00fdm, \u017ee rozdiel sa neobjavil pri be\u017en\u00fdch d\u00e1vkach vitam\u00ednu D, ale a\u017e od 5 000 IU denne. Pr\u00e1ve tu v\u0161ak treba spozornie\u0165. \u0160t\u00fadia nesledovala, \u010di tak\u00e1to d\u00e1vka dok\u00e1\u017ee zabr\u00e1ni\u0165 demencii alebo spomali\u0165 jej n\u00e1stup. Vedci iba zachytili, \u017ee \u013eudia, ktor\u00ed ju u\u017e u\u017e\u00edvali, mali v jednom kognit\u00edvnom teste lep\u0161ie v\u00fdsledky.<\/p>\n

T\u00e9ma pritom nie je okrajov\u00e1 ani v Eur\u00f3pe. Pod\u013ea najnov\u0161\u00edch \u00fadajov Alzheimer Europe<\/a> \u017eilo v roku 2025 v krajin\u00e1ch E\u00da pribli\u017ene 9,1 mili\u00f3na \u013eud\u00ed s demenciou. Do roku 2050 m\u00f4\u017ee ich po\u010det nar\u00e1s\u0165 na viac ako 14,3 mili\u00f3na. Mierna kognit\u00edvna porucha preto vedcov zauj\u00edma pr\u00e1ve ako obdobie, ktor\u00e9 demencii m\u00f4\u017ee predch\u00e1dza\u0165 a v ktorom e\u0161te h\u013eadaj\u00fa mo\u017enosti, ako \u010fal\u0161\u00ed pokles ovplyvni\u0165.<\/p>\n

Samotn\u00fdch 5 000 IU denne by v\u0161ak z tejto \u0161t\u00fadie nemalo skon\u010di\u0165 ako n\u00e1vod na dom\u00e1ce d\u00e1vkovanie. Eur\u00f3psky \u00farad pre bezpe\u010dnos\u0165 potrav\u00edn (EFSA)<\/a> stanovuje pre dospel\u00fdch horn\u00fa tolerovate\u013en\u00fa hranicu pr\u00edjmu vitam\u00ednu D na 100 mikrogramov denne, \u010do zodpoved\u00e1 4 000 IU. D\u00e1vka sledovan\u00e1 v \u0161t\u00fadii bola teda e\u0161te o \u0161tvrtinu vy\u0161\u0161ia.<\/p>\n


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<\/p>\n","protected":false},"excerpt":{"rendered":"Probl\u00e9my so sp\u00e1nkom a zhor\u0161ovanie pam\u00e4ti s vekom sa u star\u0161\u00edch \u013eud\u00ed objavuj\u00fa pomerne \u010dasto. Ke\u010f sa v\u0161ak…\n","protected":false},"author":2,"featured_media":159981,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[8],"tags":[33,43,40,42,36,50,49,48],"class_list":["post-159980","post","type-post","status-publish","format-standard","has-post-thumbnail","category-svet","tag-news","tag-sk","tag-slovak","tag-slovencina","tag-spravy","tag-svet","tag-world","tag-world-news"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@sk\/117150701764732199","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/159980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/comments?post=159980"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/159980\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media\/159981"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media?parent=159980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/categories?post=159980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/tags?post=159980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}