{"id":91868,"date":"2025-11-10T05:34:20","date_gmt":"2025-11-10T04:34:20","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=91868"},"modified":"2025-11-10T05:34:20","modified_gmt":"2025-11-10T04:34:20","slug":"nova-studie-naznacuje-ze-dlouhodobe-uzivani-melatoninu-zvysuje-riziko-srdecniho-selhani-a-dalsich-vaznych-zdravotnich-problemu","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2025\/11\/10\/nova-studie-naznacuje-ze-dlouhodobe-uzivani-melatoninu-zvysuje-riziko-srdecniho-selhani-a-dalsich-vaznych-zdravotnich-problemu\/","title":{"rendered":"Nov\u00e1 studie nazna\u010duje, \u017ee dlouhodob\u00e9 u\u017e\u00edv\u00e1n\u00ed melatoninu zvy\u0161uje riziko srde\u010dn\u00edho selh\u00e1n\u00ed a dal\u0161\u00edch v\u00e1\u017en\u00fdch zdravotn\u00edch probl\u00e9m\u016f"},"content":{"rendered":"
<\/div>\n

Pravideln\u00e9, dlouhodob\u00e9 u\u017e\u00edv\u00e1n\u00ed dopl\u0148k\u016f stravy obsahuj\u00edc\u00edch melatonin (b\u011b\u017en\u011b u\u017e\u00edvan\u00fd k podpo\u0159e sp\u00e1nku a l\u00e9\u010db\u011b nespavosti) m\u016f\u017ee b\u00fdt spojeno s v\u00fdrazn\u011b vy\u0161\u0161\u00edm rizikem srde\u010dn\u00edho selh\u00e1n\u00ed a \u00famrt\u00ed.<\/span><\/strong><\/p>\n

Tyto z\u00e1v\u011bry vyplynuly z nov\u00e9ho v\u00fdzkumu prezentovan\u00e9ho na v\u011bdeck\u00e9 konferenci\u00a0<\/span>Americk\u00e9 kardiologick\u00e9 asociace<\/span><\/em> v roce 2025 v New Orleans.<\/span><\/p>\n

Melatonin je hormon p\u0159irozen\u011b produkovan\u00fd epif\u00fdzou, kter\u00fd pom\u00e1h\u00e1 regulovat cyklus sp\u00e1nku a bd\u011bn\u00ed. V mnoha zem\u00edch je dostupn\u00fd voln\u011b prodejn\u00fd dopln\u011bk ve form\u011b syntetick\u00e9ho melatoninu. Ten se \u0161iroce propaguje jako bezpe\u010dn\u00e1 \u201ep\u0159\u00edrodn\u00ed\u201c pom\u016fcka na span\u00ed.<\/span><\/p>\n

V\u00fdzkumn\u00edci v\u0161ak moment\u00e1ln\u011b varuj\u00ed, \u017ee dlouhodob\u00e9 u\u017e\u00edv\u00e1n\u00ed tohoto synteticky vyroben\u00e9ho hormonu nemus\u00ed b\u00fdt tak ne\u0161kodn\u00e9, jak se kdysi myslelo.<\/span><\/p>\n

Ve studii, kterou vedl Dr. Ekenedilichukwu Nnadi z organizace SUNY Downstate\/Kings County Primary Care v Brooklynu, v\u00fdzkumn\u00edci analyzovali \u00fadaje od v\u00edce ne\u017e 130 000 dosp\u011bl\u00fdch s nespavost\u00ed pomoc\u00ed TriNetX Global Research Network, mezin\u00e1rodn\u00ed datab\u00e1ze elektronick\u00fdch zdravotn\u00edch z\u00e1znam\u016f.<\/span><\/p>\n

\u00da\u010dastn\u00edci, kte\u0159\u00ed u\u017e\u00edvali melatonin alespo\u0148 jeden rok, byli srovn\u00e1v\u00e1ni s t\u011bmi, kte\u0159\u00ed trp\u011bli nespavost\u00ed, ale nikdy melatonin neu\u017e\u00edvali. Lid\u00e9 s p\u0159edchoz\u00ed diagn\u00f3zou srde\u010dn\u00edho selh\u00e1n\u00ed nebo lid\u00e9, kter\u00fdm byly p\u0159edeps\u00e1ny jin\u00e9 l\u00e9ky na span\u00ed, byli ze studie vylou\u010deni.<\/span><\/p>\n

B\u011bhem p\u011bti let bylo zji\u0161t\u011bno, \u017ee dosp\u011bl\u00ed, kte\u0159\u00ed dlouhodob\u011b u\u017e\u00edvali melatonin, m\u011bli o 90 procent vy\u0161\u0161\u00ed riziko vzniku srde\u010dn\u00edho selh\u00e1n\u00ed ve srovn\u00e1n\u00ed s t\u011bmi, kte\u0159\u00ed jej neu\u017e\u00edvali (4,6 procenta oproti 2,7 procenta).<\/span><\/p>\n

Sekund\u00e1rn\u00ed anal\u00fdza uk\u00e1zala, \u017ee ti, kte\u0159\u00ed m\u011bli p\u0159edepsan\u00e9 alespo\u0148 dva melatoninov\u00e9 l\u00e9ky, m\u011bli o 82 procent vy\u0161\u0161\u00ed pravd\u011bpodobnost vzniku srde\u010dn\u00edho selh\u00e1n\u00ed.<\/span><\/p>\n

Rizika p\u0159itom p\u0159esahovala r\u00e1mec diagn\u00f3zy \u2013 u\u017eivatel\u00e9 melatoninu vykazovali 3,5kr\u00e1t vy\u0161\u0161\u00ed pravd\u011bpodobnost hospitalizace pro srde\u010dn\u00ed selh\u00e1n\u00ed a t\u00e9m\u011b\u0159 dvakr\u00e1t vy\u0161\u0161\u00ed pravd\u011bpodobnost \u00famrt\u00ed z jak\u00e9koli p\u0159\u00ed\u010diny v porovn\u00e1n\u00ed s t\u011bmi, kte\u0159\u00ed tento dopln\u011bk neu\u017e\u00edvali.<\/span><\/p>\n

\u201eDopl\u0148ky melatoninu nemus\u00ed b\u00fdt tak ne\u0161kodn\u00e9, jak se b\u011b\u017en\u011b p\u0159edpokl\u00e1d\u00e1,\u201c<\/span><\/em>\u00a0\u0159\u00edk\u00e1 Dr. Nnadi.\u00a0<\/span>\u201ePokud se na\u0161e studie potvrd\u00ed, mohlo by to ovlivnit zp\u016fsob, jak\u00fdm l\u00e9ka\u0159i rad\u00ed pacient\u016fm ohledn\u011b p\u0159\u00edpravk\u016f na span\u00ed.\u201c<\/span><\/em><\/p>\n

Odborn\u00edci varuj\u00ed, \u017ee dlouhodob\u00e1 rizika melatoninu pro srdce nejsou jasn\u00e1<\/span><\/h3>\n

Odborn\u00edci, kte\u0159\u00ed se studie nez\u00fa\u010dastnili, vyj\u00e1d\u0159ili podobnou opatrnost.<\/span><\/p>\n

Dr. Marie-Pierre St-Ongeov\u00e1, autorka v\u011bdeck\u00e9ho prohl\u00e1\u0161en\u00ed\u00a0<\/span>Americk\u00e9 kardiologick\u00e9 asociace<\/span><\/em>\u00a0z roku 2025 o sp\u00e1nku a kardiometabolick\u00e9m zdrav\u00ed, vyj\u00e1d\u0159ila p\u0159ekvapen\u00ed nad t\u00edm, \u017ee n\u011bkte\u0159\u00ed pacienti u\u017e\u00edvali melatonin nep\u0159etr\u017eit\u011b v\u00edce ne\u017e rok.<\/span><\/p>\n

Jak poznamenala, melatonin v USA nen\u00ed indikov\u00e1n k l\u00e9\u010db\u011b nespavosti a zd\u016fraznila, \u017ee by se nem\u011bl u\u017e\u00edvat dlouhodob\u011b bez l\u00e9ka\u0159sk\u00e9ho doporu\u010den\u00ed.<\/span><\/p>\n

A\u010dkoli uveden\u00e1 zji\u0161t\u011bn\u00ed vyvol\u00e1vaj\u00ed obavy, v\u00fdzkumn\u00edci zd\u016fraz\u0148uj\u00ed, \u017ee studie nedokazuje p\u0159\u00edmou souvislost melatoninu a srde\u010dn\u00edho selh\u00e1n\u00ed. Souvislost m\u016f\u017ee b\u00fdt ovlivn\u011bna i jin\u00fdmi faktory, jako jsou z\u00e1va\u017enost nespavosti, z\u00e1kladn\u00ed du\u0161evn\u00ed onemocn\u011bn\u00ed nebo u\u017e\u00edv\u00e1n\u00ed jin\u00fdch l\u00e9k\u016f souvisej\u00edc\u00edch se\u00a0<\/span>sp\u00e1nkem<\/span><\/a>\u00a0.<\/span><\/p>\n

Nav\u00edc, jeliko\u017e melatonin je dostupn\u00fd voln\u011b prodejn\u011b, n\u011bkte\u0159\u00ed jeho u\u017eivatel\u00e9 nemuseli b\u00fdt zaznamen\u00e1ni v datab\u00e1zi, co\u017e znamen\u00e1, \u017ee skute\u010dn\u00fd rozsah rizika z\u016fst\u00e1v\u00e1 nejist\u00fd.<\/span><\/p>\n

Srde\u010dn\u00ed selh\u00e1n\u00ed, tedy stav, kdy srdce nedok\u00e1\u017ee pumpovat dostatek krve bohat\u00e9 na kysl\u00edk k uspokojen\u00ed pot\u0159eb t\u011bla, postihuje v USA 6,7 milionu dosp\u011bl\u00fdch (2% populace), uv\u00e1d\u00ed se ve statistik\u00e1ch\u00a0<\/span>Americk\u00e9 kardiologick\u00e9 asociace<\/span><\/em>\u00a0o srde\u010dn\u00edch onemocn\u011bn\u00edch a mozkov\u00fdch p\u0159\u00edhod\u00e1ch z roku 2025.<\/span><\/p>\n

V\u00fdzkumn\u00edci do\u0161li k z\u00e1v\u011bru, \u017ee a\u010dkoli melatonin m\u016f\u017ee b\u00fdt u\u017eite\u010dn\u00fd p\u0159i kr\u00e1tkodob\u00fdch probl\u00e9mech se sp\u00e1nkem, jeho dlouhodob\u00e1 kardiovaskul\u00e1rn\u00ed bezpe\u010dnost z\u016fst\u00e1v\u00e1 nejasn\u00e1.<\/span><\/p>\n

\u201eK ov\u011b\u0159en\u00ed bezpe\u010dnosti melatoninu pro srdce je zapot\u0159eb\u00ed dal\u0161\u00edho v\u00fdzkumu<\/span><\/em>\u00a0,\u201c \u0159ekl Dr. Nnadi.\u00a0<\/span>\u201eDo t\u00e9 doby by l\u00e9ka\u0159i i pacienti m\u011bli k dlouhodob\u00e9mu u\u017e\u00edv\u00e1n\u00ed melatoninu p\u0159istupovat s opatrnost\u00ed.\u201c<\/span><\/em><\/p>\n

Autor: Patrick Lewis, Zdroj:\u00a0<\/span>naturalnews.com<\/span><\/a>\u00a0<\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Pravideln\u00e9, dlouhodob\u00e9 u\u017e\u00edv\u00e1n\u00ed dopl\u0148k\u016f stravy obsahuj\u00edc\u00edch melatonin (b\u011b\u017en\u011b u\u017e\u00edvan\u00fd k podpo\u0159e sp\u00e1nku a l\u00e9\u010db\u011b nespavosti)…<\/p>\n","protected":false},"author":2,"featured_media":91869,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[10056,1556,2554,21],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/91868"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=91868"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/91868\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/91869"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=91868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=91868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=91868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}