{"id":75715,"date":"2025-04-06T00:17:47","date_gmt":"2025-04-05T22:17:47","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=75715"},"modified":"2025-04-05T15:29:03","modified_gmt":"2025-04-05T13:29:03","slug":"omega-6-a-rakovina-prsu-proc-by-se-zeny-mely-vyhybat-rostlinnym-olejum","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2025\/04\/06\/omega-6-a-rakovina-prsu-proc-by-se-zeny-mely-vyhybat-rostlinnym-olejum\/","title":{"rendered":"Omega-6 a rakovina prsu \u2013 pro\u010d by se \u017eeny m\u011bly vyh\u00fdbat rostlinn\u00fdm olej\u016fm"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><strong><span>Na\u0161e strava se za posledn\u00edch sto let d\u00edky potravin\u00e1\u0159sk\u00e9mu pr\u016fmyslu masivn\u011b zm\u011bnila. M\u00edsto tradi\u010dn\u00edch tuk\u016f dnes kuchyn\u00edm dominuj\u00ed pr\u016fmyslov\u011b vyr\u00e1b\u011bn\u00e9 rostlinn\u00e9 oleje. S negativn\u00edmi \u00fa\u010dinky na na\u0161e zdrav\u00ed. Nov\u00e1 studie nazna\u010duje souvislost mezi kyselinou linolovou z rostlinn\u00fdch olej\u016f a r\u016fstem rakoviny prsu.<\/span><\/strong><\/p>\n<p><span>D\u00edky rozs\u00e1hl\u00fdm marketingov\u00fdm opat\u0159en\u00edm a studi\u00edm financovan\u00fdm potravin\u00e1\u0159sk\u00fdm pr\u016fmyslem se mnoho lid\u00ed domn\u00edv\u00e1, \u017ee \u017eivo\u010di\u0161n\u00e9 tuky jsou nezdrav\u00e9, a \u017ee by proto m\u011bli p\u0159ej\u00edt na pr\u016fmyslov\u011b vyr\u00e1b\u011bn\u00e9 rostlinn\u00e9 a semenn\u00e9 oleje, kter\u00e9 jsou jedl\u00e9 za pomoci chemik\u00e1li\u00ed. Dobr\u00fd obchod pro \u201eBig Food\u201c, kter\u00fd na takto levn\u011b vyroben\u00fdch olej\u00edch vyd\u011bl\u00e1v\u00e1 dobr\u00e9 pen\u00edze a pou\u017e\u00edv\u00e1 je tak\u00e9 v bezpo\u010dtu hotov\u00fdch v\u00fdrobk\u016f. Tyto oleje ale nejsou lidsk\u00e9mu zdrav\u00ed prosp\u011b\u0161n\u00e9 \u2013 zvl\u00e1\u0161t\u011b ne v takov\u00e9 m\u00ed\u0159e, v jak\u00e9 je dnes konzumujeme. Report24 o tom informoval\u00a0mimo jin\u00e9\u00a0<\/span><a href=\"https:\/\/report24.news\/die-dunkle-seite-der-pflanzenoele-was-die-lebensmittelindustrie-verschweigt\/\"><span>zde<\/span><\/a><span>\u00a0a\u00a0<\/span><a href=\"https:\/\/report24.news\/schaedliche-pflanzenoele-deshalb-sollten-sie-zu-gesuenderen-alternativen-greifen\/\"><span>zde<\/span><\/a><span> .<\/span><\/p>\n<h3 id=\"h-linolsaure-verschlimmert-brustkrebs\" class=\"wp-block-heading\"><span>Kyselina linolov\u00e1 zhor\u0161uje rakovinu prsu<\/span><\/h3>\n<p><span>Nyn\u00ed p\u0159ich\u00e1z\u00ed dal\u0161\u00ed studie o omega-6 mastn\u00fdch kyselin\u00e1ch, kter\u00e9 jsou zvl\u00e1\u0161t\u011b hojn\u00e9 v rostlinn\u00fdch olej\u00edch (a tedy i v siln\u011b propagovan\u00e9m margar\u00ednu). Studie s n\u00e1zvem \u201e\u00a0<\/span><a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.adm9805\"><span>P\u0159\u00edm\u00e9 sn\u00edm\u00e1n\u00ed diet\u00e1rn\u00ed kyseliny \u03c9-6 linolov\u00e9 prost\u0159ednictv\u00edm signalizace FABP5-mTORC1<\/span><\/a><span>\u00a0\u201c poukazuje na \u00fa\u010dinky kyseliny linolov\u00e9 (omega-6 mastn\u00e9 kyseliny) na podporu r\u016fstu rakoviny prsu. Zejm\u00e9na ve vztahu k tzv. \u201etriple negative\u201c podtypu, kter\u00fd je pova\u017eov\u00e1n za zvl\u00e1\u0161t\u011b obt\u00ed\u017en\u011b l\u00e9\u010diteln\u00fd. N\u00e1dorov\u00e9 bu\u0148ky toti\u017e postr\u00e1daj\u00ed t\u0159i z\u00e1kladn\u00ed receptory pro estrogen, progesteron a HER2. To zaji\u0161\u0165uje, \u017ee obvykl\u00e9 l\u00e9\u010debn\u00e9 metody \u010dasto nefunguj\u00ed.<\/span><\/p>\n<p><span>Podle v\u011bdc\u016f p\u0159\u00edli\u0161 mnoho t\u00e9to kyseliny linolov\u00e9 zp\u016fsobuje aktivaci sign\u00e1ln\u00ed dr\u00e1hy (mTORC1), kter\u00e1 urychluje d\u011blen\u00ed a r\u016fst bun\u011bk. Tato sign\u00e1ln\u00ed dr\u00e1ha mTORC1 se spojuje s proteinem FABP5, kter\u00fd je velmi b\u011b\u017en\u00fd v t\u011bchto \u201etriple negativn\u00edch\u201c bu\u0148k\u00e1ch rakoviny prsu. To je\u0161t\u011b v\u00edce urychluje r\u016fst n\u00e1doru, co\u017e vede v\u00fdzkumn\u00edky\u00a0<\/span><a href=\"https:\/\/news.weill.cornell.edu\/news\/2025\/04\/omega-6-fatty-acid-promotes-the-growth-of-an-aggressive-type-of-breast-cancer\"><span>k z\u00e1v\u011bru<\/span><\/a><span> , \u017ee mezi stravou a rakovinn\u00fdm bujen\u00edm rozhodn\u011b existuje souvislost.<\/span><\/p>\n<h3 id=\"h-ausser-balance\" class=\"wp-block-heading\"><span>Nevyv\u00e1\u017een\u00fd<\/span><\/h3>\n<p><span>\u010c\u00edsla ukazuj\u00ed, jak nevyv\u00e1\u017een\u00e1 je na\u0161e strava, zejm\u00e9na pokud jde o mastn\u00e9 kyseliny. Zat\u00edmco p\u0159ed propagandou Big Food s rostlinn\u00fdmi oleji byl pom\u011br omega-6 k omega-3 kolem 4 ku 1, dnes se obvykle pohybuje v rozmez\u00ed 15 ku 1 ku 25 ku 1 v z\u00e1vislosti na stravovac\u00edch n\u00e1vyc\u00edch konkr\u00e9tn\u00edch zem\u00ed v z\u00e1padn\u00edch zem\u00edch. St\u0159edomo\u0159sk\u00e9 zem\u011b jsou na tom v pr\u016fm\u011bru l\u00e9pe tak\u00e9 kv\u016fli \u010dast\u011bj\u0161\u00edmu pou\u017e\u00edv\u00e1n\u00ed olivov\u00e9ho oleje, zat\u00edmco zem\u011b, kter\u00e9 jed\u00ed hodn\u011b vysoce zpracovan\u00fdch potravin, maj\u00ed v\u00fdrazn\u011b v\u011bt\u0161\u00ed nerovnov\u00e1hu.<\/span><\/p>\n<p><span>Vzhledem k tomu, \u017ee chemicky rafinovan\u00e9 rostlinn\u00e9 oleje (jako je slune\u010dnicov\u00fd, \u0159epkov\u00fd nebo kuku\u0159i\u010dn\u00fd olej) hraj\u00ed hlavn\u00ed roli nejen u rakoviny prsu, ale tak\u00e9 u obezity, cukrovky a podobn\u011b, je nutn\u00fd dal\u0161\u00ed v\u00fdzkum. A pokud jde o lidskou v\u00fd\u017eivu, op\u011bt se ukazuje, \u017ee s nevyv\u00e1\u017eenou stravou jsou spojeny i odpov\u00eddaj\u00edc\u00ed zdravotn\u00ed \u00fa\u010dinky.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-71983\" src=\"http:\/\/www.infokuryr.cz\/n\/wp-content\/uploads\/2025\/02\/aaa.jpg\" alt=\"\" width=\"89\" height=\"23\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na\u0161e strava se za posledn\u00edch sto let d\u00edky potravin\u00e1\u0159sk\u00e9mu pr\u016fmyslu masivn\u011b zm\u011bnila. M\u00edsto tradi\u010dn\u00edch tuk\u016f&#8230;<\/p>\n","protected":false},"author":2,"featured_media":71771,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[6534,1366,21,742],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/75715"}],"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=75715"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/75715\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/71771"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=75715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=75715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=75715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}