{"id":75710,"date":"2025-04-06T00:14:10","date_gmt":"2025-04-05T22:14:10","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=75710"},"modified":"2025-04-05T15:21:57","modified_gmt":"2025-04-05T13:21:57","slug":"nebezpeci-v-detskem-pokoji-kazdodenni-chemikalie-by-mohly-narusit-vyvoj-mozku-miminek","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2025\/04\/06\/nebezpeci-v-detskem-pokoji-kazdodenni-chemikalie-by-mohly-narusit-vyvoj-mozku-miminek\/","title":{"rendered":"Nebezpe\u010d\u00ed v d\u011btsk\u00e9m pokoji: Ka\u017edodenn\u00ed chemik\u00e1lie by mohly naru\u0161it v\u00fdvoj mozku miminek"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><strong><span>Ftal\u00e1ty se nach\u00e1zej\u00ed v hra\u010dk\u00e1ch, \u0161amponech a obalech \u2013 to, co se zd\u00e1 ne\u0161kodn\u00e9, m\u016f\u017ee m\u00edt ne\u010dekan\u00e9 n\u00e1sledky. Nov\u00e1 studie ukazuje: V\u0161udyp\u0159\u00edtomn\u00e1 zm\u011bk\u010dovadla se dost\u00e1vaj\u00ed p\u0159es matku do krevn\u00edho ob\u011bhu nenarozen\u00e9ho d\u00edt\u011bte \u2013 a z\u0159ejm\u011b naru\u0161uj\u00ed v\u00fdvoj mozku. Prvotn\u00ed indikace poukazuj\u00ed na poruchy koncentrace a zpracov\u00e1n\u00ed podn\u011bt\u016f kr\u00e1tce po narozen\u00ed. Jak velk\u00e9 nebezpe\u010d\u00ed ve skute\u010dnosti je \u2013 a pro\u010d se ji\u017e d\u00e1vno nepodniklo \u017e\u00e1dn\u00e9 opat\u0159en\u00ed?<\/span><\/strong><\/p>\n<p><span>Nov\u00e1 studie renomovan\u00e9 Emory University poskytla alarmuj\u00edc\u00ed d\u016fkazy, \u017ee r\u016fzn\u00e9 ka\u017edodenn\u00ed chemik\u00e1lie zvan\u00e9 ftal\u00e1ty mohou negativn\u011b ovlivnit mozek nenarozen\u00fdch d\u011bt\u00ed. To, co vypad\u00e1 jako dal\u0161\u00ed v\u00fdk\u0159ik z ji\u017e tak ostra\u017eit\u00e9 oblasti environment\u00e1ln\u00ed toxikologie,\u00a0<\/span><a href=\"https:\/\/www.usnews.com\/news\/health-news\/articles\/2025-04-04\/common-chemicals-in-plastics-may-harm-baby-brain-development?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><span>p\u0159i bli\u017e\u0161\u00edm zkoum\u00e1n\u00ed<\/span><\/a><span> odhaluje znepokojiv\u00e9 selh\u00e1n\u00ed pr\u016fmyslu, regulace a spole\u010densk\u00e9 pozornosti.<\/span><\/p>\n<p><span>Ftal\u00e1ty \u2013 to jsou chemik\u00e1lie, kter\u00e9 pronikaj\u00ed do na\u0161eho ka\u017edodenn\u00edho \u017eivota: v \u0161amponech a hra\u010dk\u00e1ch, v plastov\u00fdch obalech a parf\u00e9mech. D\u011blaj\u00ed plasty m\u011bkk\u00fdmi a pru\u017en\u00fdmi, fixuj\u00ed v\u016fn\u011b a zaji\u0161\u0165uj\u00ed p\u0159\u00edjemn\u00fd pocit. Ale to, co d\u011blaj\u00ed s lidmi, zejm\u00e9na s nenarozen\u00fdm d\u00edt\u011btem, se teprve nyn\u00ed ukazuje jako celek.<\/span><\/p>\n<p><span>Studie\u00a0<\/span><a href=\"https:\/\/www.nature.com\/articles\/s41467-025-57273-z\" target=\"_blank\" rel=\"noreferrer noopener\"><span>publikovan\u00e1 v presti\u017en\u00edm \u010dasopise\u00a0<\/span><em><span>Nature Communications<\/span><\/em><\/a><span>\u00a0zkoumala vzorky mo\u010di od 216 t\u011bhotn\u00fdch \u017een a vzorky krve jejich novorozenc\u016f. V\u00fdsledek: Vysok\u00e1 koncentrace ftal\u00e1t\u016f v t\u011ble matky korelovala se sn\u00ed\u017eenou hladinou aminokyselin tyrosinu a tryptofanu \u2013 prekurzor\u016f d\u016fle\u017eit\u00fdch neurotransmiter\u016f, jako je tyroxin a serotonin. Ty jsou nezbytn\u00e9 pro rozvoj d\u011btsk\u00e9ho mozku, pro koncentraci, schopnost u\u010den\u00ed, n\u00e1ladu a zvl\u00e1d\u00e1n\u00ed stresu.<\/span><\/p>\n<p><span>Co to konkr\u00e9tn\u011b znamen\u00e1? D\u011bti, kter\u00e9 byly v d\u011bloze vystaveny vy\u0161\u0161\u00edmu mno\u017estv\u00ed t\u011bchto chemik\u00e1li\u00ed, vykazovaly kr\u00e1tce po narozen\u00ed abnormality ve sv\u00e9 pozornosti a vzru\u0161ivosti \u2013 prvn\u00ed markery mo\u017en\u00fdch pozd\u011bj\u0161\u00edch v\u00fdvojov\u00fdch poruch. Vedouc\u00ed autor studie, Dr. Donghai Liang, hovo\u0159\u00ed o \u201ed\u016fle\u017eit\u00e9m pokroku v pochopen\u00ed molekul\u00e1rn\u00edch \u00fa\u010dink\u016f prenat\u00e1ln\u00ed expozice chemik\u00e1li\u00edm\u201c. Ale navzdory ve\u0161ker\u00e9mu v\u011bdeck\u00e9mu pokroku vyvst\u00e1v\u00e1 jedna ot\u00e1zka: Pro\u010d se politick\u00e1 opat\u0159en\u00ed neprov\u00e1d\u011bj\u00ed mnohem d\u016fsledn\u011bji?<\/span><\/p>\n<p><span>Pr\u00e1vn\u00ed situace ukazuje protiklady: EU ji\u017e reguluje ftal\u00e1ty, jako je DEHP, prost\u0159ednictv\u00edm REACH, regula\u010dn\u00edho r\u00e1mce, kter\u00fd slibuje ochranu, alespo\u0148 na pap\u00ed\u0159e, ale v praxi je \u010dasto podkop\u00e1v\u00e1n nejednotnou implementac\u00ed a v\u00fdjimkami pro dov\u00e1\u017een\u00e9 zbo\u017e\u00ed. V USA z\u00e1kon o zlep\u0161ov\u00e1n\u00ed bezpe\u010dnosti spot\u0159ebitelsk\u00fdch v\u00fdrobk\u016f (CPSIA) z roku 2008 zakazuje n\u011bkter\u00e9 ftal\u00e1ty v d\u011btsk\u00fdch v\u00fdrobc\u00edch, ale jinak dominuj\u00ed dobrovoln\u00e9 normy \u2013 ochrana je ponech\u00e1na na uv\u00e1\u017een\u00ed korporac\u00ed.<\/span><\/p>\n<p><span>Skute\u010dnost, \u017ee ftal\u00e1ty mohou b\u00fdt zdrav\u00ed \u0161kodliv\u00e9, nen\u00ed nov\u00fd poznatek. Po l\u00e9ta p\u0159ib\u00fdv\u00e1 d\u016fkaz\u016f o hormon\u00e1ln\u00edch \u00fa\u010dinc\u00edch a souvislosti s neplodnost\u00ed, obezitou a cukrovkou. Ale m\u00edsto jasn\u00e9 regula\u010dn\u00ed zm\u011bny samoz\u0159ejm\u011b pozorujeme v\u0161eobecn\u00fd odklon \u2013 a politiku, kter\u00e1 se rad\u011bji spol\u00e9h\u00e1 na dobrovoln\u00e9 z\u00e1vazky ze strany pr\u016fmyslu ne\u017e na z\u00e1vazn\u00e9 limitn\u00ed hodnoty a \u00fa\u010dinn\u00e9 kontroln\u00ed mechanismy.<\/span><\/p>\n<p><span>Akumulace t\u011bchto l\u00e1tek je zvl\u00e1\u0161t\u011b problematick\u00e1 pr\u00e1v\u011b u t\u011bch skupin populace, kter\u00e9 se ji\u017e pot\u00fdkaj\u00ed se soci\u00e1ln\u00edmi a zdravotn\u00edmi probl\u00e9my. Kohorta zkouman\u00e1 ve studii sest\u00e1vala p\u0159edev\u0161\u00edm z mlad\u00fdch afroamerick\u00fdch \u017een z Atlanty \u2013 populace, kter\u00e1 je ji\u017e nyn\u00ed zvl\u00e1\u0161t\u011b zraniteln\u00e1 kv\u016fli struktur\u00e1ln\u00edmu znev\u00fdhodn\u011bn\u00ed. To, \u017ee zne\u010di\u0161t\u011bn\u00ed ftal\u00e1tem zde bylo nadpr\u016fm\u011brn\u00e9, nen\u00ed n\u00e1hoda \u2013 ale odraz ekologick\u00e9 a soci\u00e1ln\u00ed nerovnosti.<\/span><\/p>\n<p><span>Samotn\u00e1 studie zmi\u0148uje n\u011bkter\u00e1 metodologick\u00e1 omezen\u00ed: Chyb\u00ed diferencovan\u00e9 zaznamen\u00e1v\u00e1n\u00ed stravy, konzumace alkoholu, tab\u00e1ku \u010di konop\u00ed, co\u017e m\u016f\u017ee m\u00edt tak\u00e9 vliv na v\u00fdvoj d\u00edt\u011bte. Ale tato omezen\u00ed nerelativizuj\u00ed j\u00e1dro v\u00fdsledk\u016f \u2013 sp\u00ed\u0161e zvy\u0161uj\u00ed tlak jednat. Proto\u017ee pokud jsou za takov\u00fdch podm\u00ednek ji\u017e viditeln\u00e9 m\u011b\u0159iteln\u00e9 neuron\u00e1ln\u00ed \u00fa\u010dinky, jak velk\u00fd je rozsah d\u0159\u00edve neviditeln\u00fd?<\/span><\/p>\n<p><span>Nyn\u00ed je na z\u00e1konod\u00e1rc\u00edch a \u00fa\u0159adech, aby up\u0159ednostnili ochranu nenarozen\u00fdch p\u0159ed ekonomick\u00fdmi z\u00e1jmy. Jsou pot\u0159eba jasn\u00e9 po\u017eadavky na ozna\u010dov\u00e1n\u00ed, d\u016fsledn\u00e9 omezen\u00ed ftal\u00e1t\u016f ve v\u00fdrobc\u00edch, kter\u00e9 p\u0159ich\u00e1zej\u00ed do styku s potravinami nebo poko\u017ekou, a v neposledn\u00ed \u0159ad\u011b p\u0159ehodnocen\u00ed v samotn\u00e9m odv\u011btv\u00ed. Nakonec, k \u010demu je hra\u010dka bez zm\u011bk\u010dovadel, kdy\u017e bylo d\u00edt\u011b ji\u017e v d\u011bloze vystaveno neviditeln\u00e9mu nebezpe\u010d\u00ed?<\/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>Ftal\u00e1ty se nach\u00e1zej\u00ed v hra\u010dk\u00e1ch, \u0161amponech a obalech \u2013 to, co se zd\u00e1 ne\u0161kodn\u00e9, m\u016f\u017ee&#8230;<\/p>\n","protected":false},"author":2,"featured_media":75711,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[8049,245,21],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/75710"}],"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=75710"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/75710\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/75711"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=75710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=75710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=75710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}