{"id":21096,"date":"2015-04-29T09:22:48","date_gmt":"2015-04-29T07:22:48","guid":{"rendered":"http:\/\/www.invarena.cz\/?p=21096"},"modified":"2015-04-29T09:23:20","modified_gmt":"2015-04-29T07:23:20","slug":"corriere-della-sera-znecisteni-ovzdusi-vede-i-k-uzkostem","status":"publish","type":"post","link":"https:\/\/www.invarena.cz\/?p=21096","title":{"rendered":"Corriere della Sera: Zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed vede i k \u00fazkostem"},"content":{"rendered":"<p><strong>Dv\u011b na sob\u011b nez\u00e1visl\u00e9 studie uk\u00e1zaly souvislost mezi vysok\u00fdm zne\u010di\u0161t\u011bn\u00edm vzduchu jemn\u00fdmi pra\u0161n\u00fdmi \u010d\u00e1sticemi a n\u00e1r\u016fstem stav\u016f \u00fazkosti a p\u0159\u00edpady mrtvice \u010di infarktu. &#8222;\u0160patn\u00fd&#8220; vzduch m\u00e1 negativn\u00ed \u00fa\u010dinky od po\u010d\u00e1tku d\u011btstv\u00ed, p\u00ed\u0161e italsk\u00fd den\u00edk Corriere della Sera.<\/strong><!--more--><\/p>\n<p>    Krom\u011b toho, \u017ee zne\u010di\u0161t\u011bn\u00ed \u017eivotn\u00edho prost\u0159ed\u00ed vyvol\u00e1v\u00e1 po\u0161kozen\u00ed plic a srdce, je p\u0159\u00edmo zodpov\u011bdn\u00e9 za stavy \u00fazkosti a za akutn\u00ed p\u0159\u00edhody, jako jsou infarkt a mrtvice. Nazna\u010duj\u00ed to dv\u011b studie, jedna americk\u00e1 a jedna britsk\u00e1, kter\u00e9 byly zve\u0159ejn\u011bny na str\u00e1nk\u00e1ch British Medical Journal (BMJ).<\/p>\n<p>    V\u00fdzkum t\u00fdkaj\u00edc\u00ed se vzniku stav\u016f \u00fazkosti byl realizov\u00e1n u v\u00edce ne\u017e 70.000 zdravotn\u00edch sester v n\u011bkolika americk\u00fdch st\u00e1tech. V\u00fdsledek t\u00e9to studie jasn\u011b uk\u00e1zal na existenci vztahu mezi t\u00edm, \u017ee osoby jsou vystaveny zejm\u00e9na pevn\u00fdm prachov\u00fdm \u010d\u00e1stic\u00edm PM 2,5, a p\u0159\u00edznaky \u00fazkosti. V reakci na zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed n\u00e1sleduje b\u011bhem jednoho m\u011bs\u00edce n\u00e1r\u016fst projev\u016f \u00fazkosti. T\u00fdm v\u011bdc\u016f veden\u00fd doktorkou Melindou Powerovou z odd\u011blen\u00ed epidemiologie na Harvard Medical School p\u0159edlo\u017eil hypot\u00e9zu, podle n\u00ed\u017e zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed m\u016f\u017ee zp\u016fsobovat nebo prohlubovat \u00fazkost t\u00edm, \u017ee mimo jin\u00e9 zvy\u0161uje stres.<\/p>\n<p>    Britsk\u00e1 studie vych\u00e1z\u00ed ze srovn\u00e1vac\u00ed anal\u00fdzy v\u00edce ne\u017e stovky v\u011bdeck\u00fdch \u010dl\u00e1nk\u016f, v nich\u017e se zkoumal mo\u017en\u00fd vztah mezi zne\u010di\u0161t\u011bn\u00edm ovzdu\u0161\u00ed a mrtvic\u00ed \u010di infarktem. V\u011bdci dosp\u011bli k z\u00e1v\u011bru, \u017ee existuje p\u0159\u00edm\u00e1 souvislost mezi \u00farovn\u00ed zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed a zv\u00fd\u0161en\u00edm po\u010dtu hospitalizac\u00ed z d\u016fvodu mrtvice \u010di infarktu \u010di \u00famrt\u00ed na n\u011b.<\/p>\n<p>    Auto\u0159i studie pak charakterizovali mo\u017en\u00e9 mechanismy, jejich\u017e prost\u0159ednictv\u00edm m\u016f\u017ee zne\u010di\u0161t\u011bn\u00ed zp\u016fsobovat infarkt \u010di mrtvici. P\u0159edpokl\u00e1daj\u00ed, \u017ee existuje p\u0159\u00edm\u00e9 p\u016fsoben\u00ed zne\u010di\u0161\u0165uj\u00edc\u00edch \u010d\u00e1stic, zejm\u00e9na PM 2,5, na endotel tepen (jemn\u00e1 bun\u011b\u010dn\u00e1 v\u00fdstelka tepen), spojen\u00e9 s hyperaktivitou autonomn\u00edho nervov\u00e9ho syst\u00e9mu. Z toho vypl\u00fdv\u00e1 mimo jin\u00e9 zvy\u0161ov\u00e1n\u00ed krevn\u00edho tlaku a ischemie. &#8222;Dal\u0161\u00ed v\u00fdznamn\u00fd potenci\u00e1ln\u00ed \u00fa\u010dinek zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed se t\u00fdk\u00e1 infarktu a mrtvice,&#8220; uv\u00e1d\u011bj\u00ed auto\u0159i studie veden\u00ed doktorem Anoopem Shahem z University Centre for Cardiovascular Science v Edinburghu. &#8222;Hroz\u00ed nebezpe\u010d\u00ed atri\u00e1ln\u00ed arytmie, kter\u00e9 m\u016f\u017ee vytv\u00e1\u0159et dispozice pro vznik tromboembolick\u00fdch p\u0159\u00edhod.<\/p>\n<p>    V\u00fdzkum pod veden\u00edm doktora Bradleyho Petersona z Institute for the Development Mind p\u0159i d\u011btsk\u00e9 klinice v Los Angeles uk\u00e1zal, \u017ee zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed polycyklick\u00fdmi aromatick\u00fdmi uhlovod\u00edky po\u0161kozuje v\u00fdvoj jedn\u00e9 \u010d\u00e1sti mozku, zejm\u00e9na v oblasti b\u00edl\u00e9 hmoty mozkov\u00e9, z jej\u00edho\u017e naru\u0161en\u00ed vypl\u00fdv\u00e1 sn\u00ed\u017een\u00ed rychlosti zpracov\u00e1v\u00e1n\u00ed informac\u00ed. To m\u016f\u017ee zvy\u0161ovat nebezpe\u010d\u00ed rozvoje poruchy pozornosti \u010di hyperaktivity.<\/p>\n<p>    &#8222;V\u00fdsledky t\u011bchto studi\u00ed n\u00e1s nab\u00e1daj\u00ed k tomu, abychom soust\u0159edili v\u011bt\u0161\u00ed pozornost na zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed jako na v\u00fdznamnou hrozbu pro glob\u00e1ln\u00ed zdrav\u00ed,&#8220; napsal v BMJ doktor Michael Brauer ze School of Population and Public Health p\u0159i Univerzit\u011b Britsk\u00e9 Kolumbie ve Vancouveru. &#8222;I sebemen\u0161\u00ed sn\u00ed\u017een\u00ed \u00farovn\u011b zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed m\u016f\u017ee m\u00edt na obyvatelstvo \u0161irok\u00fd pozitivn\u00ed dopad,&#8220; dodal. <\/p>\n<p>foto: www.advancedspinalcareandrehabilitationcoshocton.com<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Dv\u011b na sob\u011b nez\u00e1visl\u00e9 studie uk\u00e1zaly souvislost mezi vysok\u00fdm zne\u010di\u0161t\u011bn\u00edm vzduchu jemn\u00fdmi pra\u0161n\u00fdmi \u010d\u00e1sticemi a n\u00e1r\u016fstem stav\u016f \u00fazkosti a p\u0159\u00edpady mrtvice \u010di infarktu. &#8222;\u0160patn\u00fd&#8220; vzduch <a class=\"mh-excerpt-more\" href=\"https:\/\/www.invarena.cz\/?p=21096\" title=\"Corriere della Sera: Zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed vede i k \u00fazkostem\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":17175,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-21096","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdravi"],"_links":{"self":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/21096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=21096"}],"version-history":[{"count":0,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/21096\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/media\/17175"}],"wp:attachment":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}