{"id":78271,"date":"2025-05-08T00:31:25","date_gmt":"2025-05-07T22:31:25","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=78271"},"modified":"2025-05-07T17:11:59","modified_gmt":"2025-05-07T15:11:59","slug":"studie-zvykacka-uvolnuje-velke-mnozstvi-mikroplastu","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2025\/05\/08\/studie-zvykacka-uvolnuje-velke-mnozstvi-mikroplastu\/","title":{"rendered":"Studie: \u017dv\u00fdka\u010dka uvol\u0148uje velk\u00e9 mno\u017estv\u00ed mikroplast\u016f"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><strong><span>Ka\u017ed\u00fd, kdo \u017ev\u00fdk\u00e1 \u017ev\u00fdka\u010dku ka\u017ed\u00fd den, zat\u011b\u017euje sv\u00e9 t\u011blo velk\u00fdm mno\u017estv\u00edm mikroplast\u016f. Ukazuj\u00ed to data z nov\u011b publikovan\u00e9 pilotn\u00ed studie. To nen\u00ed dobr\u00e9 pro va\u0161e vlastn\u00ed zdrav\u00ed. Je to proto, \u017ee se do na\u0161eho ob\u011bhu denn\u011b dost\u00e1v\u00e1 nespo\u010det t\u011bchto mal\u00fdch plastov\u00fdch \u010d\u00e1stic.<\/span><\/strong><\/p>\n<p><span>\u017dv\u00fdka\u010dka se skl\u00e1d\u00e1 z p\u0159\u00edrodn\u00edho nebo syntetick\u00e9ho kau\u010dukov\u00e9ho z\u00e1kladu, kter\u00fd je ochucen\u00fd a barven\u00fd. Jsou pova\u017eov\u00e1ny za u\u017eite\u010dn\u00e9 pro tr\u00e1ven\u00ed, proto\u017ee stimuluj\u00ed tok slin. Ale je tu i jeden probl\u00e9m \u2013 mikroplasty. Pr\u016fm\u011brn\u00fd \u010dlov\u011bk je ji\u017e denn\u011b vystaven zna\u010dn\u00e9mu mno\u017estv\u00ed mikroplast\u016f, kter\u00e9 se dokonce hromad\u00ed v mozku.<\/span><\/p>\n<p><span>Pilotn\u00ed studie Kalifornsk\u00e9 univerzity ilustruje velk\u00e9 mno\u017estv\u00ed, kter\u00e9 se dost\u00e1v\u00e1 do lidsk\u00e9ho ob\u011bhu slinami p\u0159i \u017ev\u00fdk\u00e1n\u00ed \u017ev\u00fdka\u010dky. Bylo zkoum\u00e1no deset r\u016fzn\u00fdch zna\u010dek \u017ev\u00fdka\u010dek. P\u011bt z nich je na b\u00e1zi p\u0159\u00edrodn\u00edho kau\u010duku, p\u011bt na syntetick\u00e9m kau\u010duku. V jednom experimentu ho \u010dlov\u011bk \u017ev\u00fdkal \u010dty\u0159i minuty (aby se sn\u00ed\u017eil vliv r\u016fzn\u00fdch \u017ev\u00fdkac\u00edch vzorc\u016f a slo\u017een\u00ed slin) a v jin\u00e9m experimentu dvacet minut. Pot\u00e9 byly pravideln\u011b odeb\u00edr\u00e1ny vzorky slin, aby se zkontroloval obsah mikroplast\u016f.<\/span><\/p>\n<p><a href=\"https:\/\/www.acs.org\/pressroom\/presspacs\/2025\/march\/chewing-gum-can-shed-microplastics-into-saliva-pilot-study-finds.html\"><span>V\u00fdsledek: Podle prohl\u00e1\u0161en\u00ed<\/span><\/a><span>\u00a0Americk\u00e9 chemick\u00e9 spole\u010dnosti se z ka\u017ed\u00e9ho gramu \u017ev\u00fdka\u010dky uvolnilo v pr\u016fm\u011bru asi 100 mikroplastick\u00fdch \u010d\u00e1stic\u00a0. N\u011bkter\u00e9 \u017ev\u00fdka\u010dky dokonce uvol\u0148uj\u00ed a\u017e 600 takov\u00fdch \u010d\u00e1stic na gram. To znamen\u00e1, \u017ee dva a\u017e \u0161est gram\u016f na kus \u017ev\u00fdka\u010dky m\u016f\u017ee uvolnit a\u017e 3 000 takov\u00fdch plastov\u00fdch \u010d\u00e1stic. Nez\u00e1le\u017e\u00ed na tom, zda jsou vyrobeny z p\u0159\u00edrodn\u00edho nebo syntetick\u00e9ho kau\u010duku. Polymery jsou stejn\u00e9.<\/span><\/p>\n<p><span>M\u016f\u017eete si tedy spo\u010d\u00edtat, kolik dal\u0161\u00edch mikroplast\u016f \u2013 krom\u011b dal\u0161\u00edch ka\u017edodenn\u00edch zdroj\u016f \u2013 p\u0159ijme \u010dlov\u011bk, kter\u00fd denn\u011b zkonzumuje jednu nebo dv\u011b \u017ev\u00fdka\u010dky (nebo i v\u00edce). Mluv\u00edme o des\u00edtk\u00e1ch tis\u00edc takov\u00fdch \u010d\u00e1stic ro\u010dn\u011b.\u00a0<\/span><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.est.3c09524\"><span>Kdy\u017e vezmeme v \u00favahu , \u017ee mikroplastick\u00e9 \u010d\u00e1stice jsou\u00a0<\/span><\/a><a href=\"https:\/\/static1.squarespace.com\/static\/5eda91260bbb7e7a4bf528d8\/t\/63ee3b95ee82156a46194aae\/1676557207404\/CalSPEC-Report-Microplastics-Occurrence-Health+Effects-and-Mitigation-Policies.pdf\"><span>spojeny<\/span><\/a><span>\u00a0s oxida\u010dn\u00edm stresem, hormon\u00e1ln\u00edmi zm\u011bnami, neplodnost\u00ed, srde\u010dn\u00edmi a ob\u011bhov\u00fdmi probl\u00e9my a dokonce i rakovinou\u00a0, je jasn\u00e9, jak z\u00e1va\u017en\u00e1 je cel\u00e1 v\u011bc.<\/span><\/p>\n<p><span>Tyto drobn\u00e9 plastov\u00e9 \u010d\u00e1stice byly nyn\u00ed detekov\u00e1ny v\u00a0<\/span><a href=\"http:\/\/jamanetwork.com\/journals\/jamanetworkopen\/fullarticle\/10.1001\/jamanetworkopen.2024.40018?utm_source=For_The_Media&amp;utm_medium=referral&amp;utm_campaign=ftm_links&amp;utm_term=091624\"><span>mozku<\/span><\/a><span>\u00a0,\u00a0<\/span><a href=\"https:\/\/academic.oup.com\/toxsci\/advance-article-abstract\/doi\/10.1093\/toxsci\/kfae021\/7609801?redirectedFrom=fulltext&amp;login=false\"><span>placent\u011b<\/span><\/a><span>\u00a0a mnoha dal\u0161\u00edch org\u00e1nech, jako jsou varlata, j\u00e1tra, st\u0159eva a pl\u00edce. Vst\u0159eb\u00e1v\u00e1 se vzduchem, vodou a potravou. Pro\u010d? Proto\u017ee cel\u00fd n\u00e1\u0161 sv\u011bt je nyn\u00ed pln\u00fd plast\u016f, kter\u00e9 se pomalu rozkl\u00e1daj\u00ed a \u0161\u00ed\u0159\u00ed tyto \u010d\u00e1stice v\u0161ude kolem.<\/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>Ka\u017ed\u00fd, kdo \u017ev\u00fdk\u00e1 \u017ev\u00fdka\u010dku ka\u017ed\u00fd den, zat\u011b\u017euje sv\u00e9 t\u011blo velk\u00fdm mno\u017estv\u00edm mikroplast\u016f. Ukazuj\u00ed to data&#8230;<\/p>\n","protected":false},"author":2,"featured_media":78272,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[7251,839,6688],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/78271"}],"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=78271"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/78271\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/78272"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=78271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=78271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=78271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}