Jungtini\u0173 amerikos valstij\u0173 mokslininkai tvirtina tur\u012f nauj\u0105 paai\u0161kinim\u0105, kod\u0117l mes miegame. J\u0173 teigimu, mums miegant suaktyvinama \u201evalymo sistema\u201c, kuri pravalo smegenis, ra\u0161o theguardian.com.<\/p>\n
Atlikus eksperimentus su pel\u0117mis paai\u0161k\u0117jo, kad miego metu po smegenis pradedamas varin\u0117ti nugaros smegen\u0173 skystis, kuris tarsi biologinis ploviklis i\u0161plauna nereikalingas med\u017eiagas. \u0160is procesas padeda pa\u0161alinti molekuli\u0173 atliekas (detrit\u0105), kurias smegen\u0173 l\u0105stel\u0117s i\u0161skiria \u012fprastos veiklos metu, bei toksi\u0161kus baltymus, kurie susikaup\u0119 smegenyse gali sukelti silpnaprotyst\u0119, teigia mokslininkai.<\/p>\n
\u017durnale \u201eScience\u201c apra\u0161oma, kaip miegant susitraukia peli\u0173 smegenys, padidindamos aplinkin\u0119 erdv\u0119 vidutini\u0161kai 60 proc. Tai leid\u017eia nugaros smegen\u0173 skys\u010diui cirkuliuoti gyv\u016bno galvos smegenyse 10 kart\u0173 grei\u010diau negu b\u016bdraujant. Be to, mokslininkai patikrino, kaip \u0161alinami toksinai i\u0161 peli\u0173 smegen\u0173, suleisdami joms su Alzheimerio liga<\/a> siejam\u0173 baltym\u0173 p\u0117dsak\u0173. Jie nustat\u0117, kad \u0161ie beta amiloidiniai baltymai i\u0161 smegen\u0173 buvo pa\u0161alinti grei\u010diau, kai pel\u0117s miegojo. Manoma, kad miegant valymosi procesas vyksta aktyviau, nes skys\u010dio pumpavimui po smegenis budrumo metu reikia pernelyg daug energijos. Mokslinink\u0117 M. Nedergaard, vadovavusi \u0161iam tyrimui, \u012fsitikinusi, kad toki\u0105 pa\u010di\u0105 valymosi sistem\u0105 aptiks ir \u017emoni\u0173 smegenyse. Tokie darbai, jos teigimu, gal\u0117t\u0173 atverti keli\u0105 vaistams, kurie sul\u0117tint\u0173 silpnaprotyst\u0117s prad\u017ei\u0105, sukelt\u0105 smegen\u0173 l\u0105steli\u0173 atliek\u0173 sankaup\u0173, ir net pad\u0117t\u0173 tiems \u017emon\u0117ms, kuriems tr\u016bksta miego.<\/p>\n","protected":false},"excerpt":{"rendered":" Atlikus eksperimentus su pel\u0117mis paai\u0161k\u0117jo, kad miego metu po smegenis pradedamas varin\u0117ti nugaros smegen\u0173 skystis, kuris tarsi biologinis ploviklis i\u0161plauna nereikalingas med\u017eiagas. \u0160is procesas padeda pa\u0161alinti molekuli\u0173 atliekas (detrit\u0105), kurias smegen\u0173 l\u0105stel\u0117s i\u0161skiria \u012fprastos veiklos metu, bei toksi\u0161kus baltymus, kurie susikaup\u0119 smegenyse gali sukelti silpnaprotyst\u0119, teigia mokslininkai.<\/p>\n","protected":false},"author":1,"featured_media":7928,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27314],"tags":[85],"site":[],"post_item_type":[27344],"class_list":["post-7927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ekologija-ir-sveikata","tag-miego"],"acf":{"post_sites":false},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/posts\/7927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/comments?post=7927"}],"version-history":[{"count":0,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/posts\/7927\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/media\/7928"}],"wp:attachment":[{"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/media?parent=7927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/categories?post=7927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/tags?post=7927"},{"taxonomy":"site","embeddable":true,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/site?post=7927"},{"taxonomy":"post_item_type","embeddable":true,"href":"https:\/\/www.pasveik.lt\/lt\/wp-json\/wp\/v2\/post_item_type?post=7927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}