Ned\u00e1vn\u00e1 studie zjistila, \u017ee kou\u0159en\u00ed marihuany i konzumace po\u017eivatin s obsahem THC jsou spojeny s \u010dasn\u00fdmi ukazateli kardiovaskul\u00e1rn\u00edch onemocn\u011bn\u00ed. Tato studie, kterou provedli v\u011bdci z Kalifornsk\u00e9 univerzity v San Francisku, nazna\u010duje, \u017ee zdravotn\u00ed rizika spojen\u00e1 s konop\u00edm mohou b\u00fdt v\u00fdznamn\u011bj\u0161\u00ed, ne\u017e se dosud p\u0159edpokl\u00e1dalo.<\/p>\n\n\n\n
Hlavn\u00ed autor Matthew Springer uvedl: \"Pokud je mi zn\u00e1mo, jedn\u00e1 se o prvn\u00ed studii zab\u00fdvaj\u00edc\u00ed se vlivem THC na funkci c\u00e9v u lid\u00ed.\" V\u00fdzkum poukazuje na znepokojiv\u00fd trend: u zdrav\u00fdch jedinc\u016f, kte\u0159\u00ed pravideln\u011b u\u017e\u00edvali konop\u00ed, se projevilo zhor\u0161en\u00ed c\u00e9vn\u00edch funkc\u00ed podobn\u00e9 tomu, kter\u00e9 bylo pozorov\u00e1no u ku\u0159\u00e1k\u016f tab\u00e1ku.<\/p>\n\n\n\n
Studie hodnotila 55 \u00fa\u010dastn\u00edk\u016f ve v\u011bku 18 a\u017e 50 let a rozd\u011blila je do t\u0159\u00ed skupin: ti, kte\u0159\u00ed kou\u0159ili marihuanu t\u0159ikr\u00e1t nebo v\u00edcekr\u00e1t t\u00fddn\u011b, ti, kte\u0159\u00ed konzumovali jedl\u00e9 tablety s THC alespo\u0148 t\u0159ikr\u00e1t t\u00fddn\u011b, a neu\u017eivatel\u00e9. Pozoruhodn\u00e9 je, \u017ee \u017e\u00e1dn\u00fd z \u00fa\u010dastn\u00edk\u016f nekou\u0159il ani nevapoval tab\u00e1k a pasivn\u00edmu kou\u0159en\u00ed byli vystaveni minim\u00e1ln\u011b.<\/p>\n\n\n\n
Pomoc\u00ed ultrazvukov\u00e9 technologie v\u011bdci vyhodnotili hlavn\u00ed tepnu v horn\u00ed \u010d\u00e1sti pa\u017ee ka\u017ed\u00e9ho \u00fa\u010dastn\u00edka. Po p\u0159ilo\u017een\u00ed t\u011bsn\u00e9 man\u017eety na p\u011bt minut m\u011b\u0159ili, jak moc se tepna po uvoln\u011bn\u00ed roz\u0161\u00ed\u0159ila. V\u00fdsledky uk\u00e1zaly, \u017ee funkce c\u00e9v se u ku\u0159\u00e1k\u016f marihuany sn\u00ed\u017eila o 42% a u konzument\u016f jedl\u00e9 THC o 56% ve srovn\u00e1n\u00ed s neu\u017eivateli.<\/p>\n\n\n\n
Dr. Leila Mohammadi, hlavn\u00ed autorka studie, zd\u016fraznila, \u017ee a\u010dkoli v\u00fdsledky ukazuj\u00ed souvislost mezi u\u017e\u00edv\u00e1n\u00edm konop\u00ed a sn\u00ed\u017eenou funkc\u00ed c\u00e9v, neprokazuj\u00ed p\u0159\u00edm\u00fd vztah p\u0159\u00ed\u010diny a n\u00e1sledku. \"M\u016f\u017eeme pouze konstatovat, \u017ee u\u017eivatel\u00e9 konop\u00ed maj\u00ed \u0161patnou funkci c\u00e9v, nikoli \u017ee u\u017e\u00edv\u00e1n\u00ed konop\u00ed zp\u016fsobuje \u0161patnou funkci c\u00e9v,\" poznamenala.<\/p>\n\n\n\n
Studie tak\u00e9 odhalila p\u0159ekvapiv\u00e9 v\u00fdsledky t\u00fdkaj\u00edc\u00ed se edibles s THC. Dr. Andrew Freeman, odborn\u00edk na kardiovaskul\u00e1rn\u00ed prevenci, poznamenal: \"Je mo\u017en\u00e9, \u017ee ostatn\u00ed formy marihuany - \u010daje, tinktury, po\u017eivatiny - mo\u017en\u00e1 nejsou tak ne\u0161kodn\u00e9, jak jsme si d\u0159\u00edve mysleli?\" Vyzval k proveden\u00ed rozs\u00e1hlej\u0161\u00edch studi\u00ed, kter\u00e9 by tyto z\u00e1v\u011bry potvrdily.<\/p>\n\n\n\n
Endotelov\u00e9 bu\u0148ky vyst\u00fdlaj\u00edc\u00ed c\u00e9vy maj\u00ed z\u00e1sadn\u00ed v\u00fdznam pro regulaci pr\u016ftoku krve a prevenci tvorby sra\u017eenin. Pokud jsou tyto bu\u0148ky zan\u00edcen\u00e9, m\u016f\u017ee doj\u00edt k hromad\u011bn\u00ed plaku, co\u017e zvy\u0161uje riziko infarktu a mrtvice. A\u010dkoli studie nem\u011b\u0159ila p\u0159\u00edmo plak, Springer uvedl, \u017ee sn\u00ed\u017een\u00e1 schopnost c\u00e9v roz\u0161i\u0159ovat se nazna\u010duje z\u00e1kladn\u00ed probl\u00e9my, kter\u00e9 by mohly v budoucnu v\u00e9st ke kardiovaskul\u00e1rn\u00edm probl\u00e9m\u016fm.<\/p>\n\n\n\n
P\u0159edchoz\u00ed v\u00fdzkumy spojovaly u\u017e\u00edv\u00e1n\u00ed marihuany s vy\u0161\u0161\u00edm rizikem srde\u010dn\u00edho infarktu a mrtvice. Studie z \u00fanora 2024 zjistila, \u017ee denn\u00ed u\u017eivatel\u00e9 marihuany \u010del\u00ed o 42% vy\u0161\u0161\u00edmu riziku mrtvice a o 25% vy\u0161\u0161\u00edmu riziku infarktu, a to i mezi t\u011bmi, kte\u0159\u00ed ji\u017e d\u0159\u00edve nem\u011bli srde\u010dn\u00ed pot\u00ed\u017ee. Dal\u0161\u00ed studie z \u00fanora 2023 nazna\u010dila, \u017ee ka\u017edodenn\u00ed u\u017e\u00edv\u00e1n\u00ed marihuany m\u016f\u017ee zv\u00fd\u0161it riziko ischemick\u00e9 choroby srde\u010dn\u00ed o jednu t\u0159etinu ve srovn\u00e1n\u00ed s neu\u017eivateli.<\/p>\n\n\n\n
Americk\u00e1 kardiologick\u00e1 asociace nedoporu\u010duje kou\u0159it ani vapovat \u017e\u00e1dn\u00e9 l\u00e1tky, v\u010detn\u011b konop\u00ed. Jej\u00ed pokyny z roku 2020 upozor\u0148uj\u00ed na mo\u017en\u00e9 nepravidelnosti srde\u010dn\u00edho rytmu, kter\u00e9 se mohou objevit kr\u00e1tce po kou\u0159en\u00ed v\u00fdrobk\u016f s obsahem THC.<\/p>\n\n\n\n
V\u00fdsledky studie zd\u016fraz\u0148uj\u00ed pot\u0159ebu opatrnosti u u\u017eivatel\u016f konop\u00ed, zejm\u00e9na pokud jde o \u010detnost a s\u00edlu jejich konzumace. Mohammadi uvedl: \"Vy\u0161\u0161\u00ed u\u017e\u00edv\u00e1n\u00ed konop\u00ed - a\u0165 u\u017e kou\u0159en\u00e9ho nebo po\u017eit\u00e9ho - je spojeno s hor\u0161\u00ed funkc\u00ed c\u00e9v, co\u017e poukazuje na kardiovaskul\u00e1rn\u00ed rizika, kter\u00e1 se zvy\u0161uj\u00ed s vy\u0161\u0161\u00ed silou a frekvenc\u00ed u\u017e\u00edv\u00e1n\u00ed.\"<\/p>\n\n\n\n
V laboratorn\u00edch anal\u00fdz\u00e1ch v\u011bdci porovn\u00e1vali krevn\u00ed s\u00e9rum ku\u0159\u00e1k\u016f a u\u017eivatel\u016f konop\u00ed s endoteli\u00e1ln\u00edmi bu\u0148kami. Zjistili, \u017ee s\u00e9rum od jedl\u00fdch u\u017eivatel\u016f nepo\u0161kozuje funkci bun\u011bk, zat\u00edmco s\u00e9rum od ku\u0159\u00e1k\u016f m\u00e1 za n\u00e1sledek 27% sn\u00ed\u017een\u00ed produkce oxidu dusnat\u00e9ho, podobn\u011b jako zji\u0161t\u011bn\u00ed ve v\u00fdzkumu tab\u00e1ku.<\/p>\n\n\n\n
Springer varoval p\u0159ed z\u00e1v\u011brem, \u017ee za po\u0161kozen\u00ed c\u00e9v m\u016f\u017ee pouze THC, a nazna\u010dil, \u017ee ke kardiovaskul\u00e1rn\u00edm probl\u00e9m\u016fm p\u0159isp\u00edv\u00e1 i samotn\u00e9 kou\u0159en\u00ed marihuany. Poznamenal: \"Krysy vystaven\u00e9 marihuanov\u00e9mu kou\u0159i bez kanabinoid\u016f p\u0159esto vykazovaly c\u00e9vn\u00ed a srde\u010dn\u00ed po\u0161kozen\u00ed. P\u0159echod z tab\u00e1ku na marihuanu tedy zdravotn\u00ed rizika neodstra\u0148uje.\"<\/p>\n\n\n\n
Freeman nazna\u010dil, \u017ee by mohla existovat optim\u00e1ln\u00ed m\u00edra konzumace konop\u00ed, kter\u00e1 by minimalizovala zdravotn\u00ed rizika, a uvedl: \"U lid\u00ed existuje n\u011bco jako zlat\u00e1 z\u00f3na pro v\u0161echno - p\u0159\u00edli\u0161 mnoho ned\u011bl\u00e1 dobrotu, p\u0159\u00edli\u0161 m\u00e1lo ned\u011bl\u00e1 dobrotu, ale tak akor\u00e1t to d\u011bl\u00e1 dobrotu.\"<\/p>\n\n\n\n
Vzhledem k tomu, \u017ee se v\u00fdzkumn\u00e9 prost\u0159ed\u00ed st\u00e1le vyv\u00edj\u00ed, zd\u016fraz\u0148uj\u00ed tato zji\u0161t\u011bn\u00ed v\u00fdznam pochopen\u00ed zdravotn\u00edch d\u016fsledk\u016f u\u017e\u00edv\u00e1n\u00ed konop\u00ed, zejm\u00e9na ve vztahu ke kardiovaskul\u00e1rn\u00edmu zdrav\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"
Ned\u00e1vn\u00e1 studie zjistila, \u017ee kou\u0159en\u00ed marihuany i konzumace po\u017eivatin s obsahem THC jsou spojeny s \u010dasn\u00fdmi ukazateli kardiovaskul\u00e1rn\u00edch...<\/p>","protected":false},"author":2,"featured_media":7369,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71],"tags":[2278,1819,1744,51],"class_list":["post-7370","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research","tag-cardiovascular","tag-health","tag-study","tag-thc"],"yoast_head":"\n