{"id":38101,"date":"2019-11-03T17:22:06","date_gmt":"2019-11-03T14:22:06","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=38101"},"modified":"2019-11-03T17:26:00","modified_gmt":"2019-11-03T14:26:00","slug":"uyku-beyinde-zararli-proteinlerin-birikimini-azaltabilir","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2019\/11\/03\/uyku-beyinde-zararli-proteinlerin-birikimini-azaltabilir","title":{"rendered":"Uyku, beyinde zararl\u0131 proteinlerin birikimini azaltabilir"},"content":{"rendered":"<p>Her 20 saniyede bir, beynin belirli b\u00f6lgeleri uyku haline ge\u00e7er. 1 Kas\u0131m g\u00fcn\u00fc Science dergisinde yay\u0131nlanan \u00e7al\u0131\u015fmada i\u015faret edilen bu yava\u015f ve ritmik durum, uykunun beyin sa\u011fl\u0131\u011f\u0131 i\u00e7in neden bu kadar \u00f6nemli oldu\u011funun anla\u015f\u0131lmas\u0131nda yard\u0131mc\u0131 olabilir. Daha \u00f6nceki \u00e7al\u0131\u015fmalar, CSF olarak adland\u0131r\u0131lan s\u0131v\u0131n\u0131n, Alzheimer hastal\u0131\u011f\u0131 ve ba\u015fka birka\u00e7 hastal\u0131kta zararl\u0131 proteinleri beyinden uzakla\u015ft\u0131rabildi\u011fini g\u00f6sterdi. Yeni sonu\u00e7lar, benzer bir elektriksel olay\u0131n uyuyan insanlarda da ger\u00e7ekle\u015fti\u011fini g\u00f6stermekte.<\/p>\n<figure id=\"attachment_38103\" aria-describedby=\"caption-attachment-38103\" style=\"width: 300px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-38103 size-medium\" src=\"https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2019\/11\/mri-tarama-300x169.jpg\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2019\/11\/mri-tarama-300x169.jpg 300w, https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2019\/11\/mri-tarama-768x432.jpg 768w, https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2019\/11\/mri-tarama-600x338.jpg 600w, https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2019\/11\/mri-tarama.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-38103\" class=\"wp-caption-text\">MRI taramalar\u0131<\/figcaption><\/figure>\n<p>Ara\u015ft\u0131rmac\u0131lar, 13 sa\u011fl\u0131kl\u0131 gencin MRI taramalar\u0131 \u00fczerinde \u00e7al\u0131\u015ft\u0131. Ayn\u0131 zamanda biliminsanlar\u0131, kat\u0131l\u0131mc\u0131lar\u0131n beyinlerini ara\u015ft\u0131r\u0131rken farkl\u0131 t\u00fcrden metotlar da izlediler. Elektrotlar, b\u00fcy\u00fck sinir h\u00fccresi toplamlar\u0131n\u0131n aktivitelerini \u00f6l\u00e7t\u00fcler ve bu sinir h\u00fccrelerine enerji veren oksijenli kan d\u00f6ng\u00fcs\u00fcne bakt\u0131lar. Boston \u00dcniversitesi\u2019nden sinirbilim uzman\u0131 Laura Lewis, \u201cBu \u00e7al\u0131\u015fmada kar\u015f\u0131la\u015ft\u0131klar\u0131m\u0131z olduk\u00e7a \u00e7arp\u0131c\u0131yd\u0131\u201d dedi. New York&#8217;taki Rochester \u00dcniversitesi T\u0131p Merkezi&#8217;nde \u00e7al\u0131\u015fma y\u00fcr\u00fcten sinirbilimci Maiken Nedergaard, \u201cSinirbilimsel a\u00e7\u0131dan yorumlayacak olursak uyku, beyin dalgalar\u0131, beyin omurilik s\u0131v\u0131s\u0131n\u0131n ak\u0131\u015f\u0131 ve kan ak\u0131\u015f\u0131 da dahil olmak \u00fczere birbirleriyle ili\u015fkili olmayan bir\u00e7ok konuyu zarif bir bi\u00e7imde birle\u015ftiriyor\u201d a\u00e7\u0131klamalar\u0131nda bulunarak uykunun sinirbilimsel a\u00e7\u0131dan \u00f6nemine i\u015faret etti. Beynin \u00e7e\u015fitli dalgalar\u0131n\u0131n birbirleriyle nas\u0131l bir ili\u015fkiye sahip olduklar\u0131n\u0131n hen\u00fcz tam belli olmad\u0131\u011f\u0131n\u0131 belirten Lewis ve meslekta\u015flar\u0131 ise, beyinde ger\u00e7ekle\u015fen bir olay\u0131n di\u011fer olaylar\u0131n ger\u00e7ekle\u015fmesine neden olup olmad\u0131\u011f\u0131n\u0131 test etmeyi planl\u0131yor.<\/p>\n<p>\u201cBOS dalgalar\u0131\u201d olarak adland\u0131r\u0131lan bu g\u00fc\u00e7l\u00fc dalgalanmalar\u0131 tespit etmek, zararl\u0131 at\u0131k \u00fcr\u00fcnlerin beyinden silinmesi i\u00e7in olduk\u00e7a \u00f6nemli bir noktada durmakta. Nedergaard ve meslekta\u015flar\u0131, Alzheimer ve benzeri hastal\u0131klarda beyinde biriken zararl\u0131 proteinlerin de bu dalgalar\u0131n etkisiyle temizlenebilece\u011fini s\u00f6yl\u00fcyor. Uyku s\u0131ras\u0131nda bu g\u00fc\u00e7l\u00fc BOS dalgalar\u0131 beyne gelir, b\u00f6ylelikle amiloid-beta ve benzeri zararl\u0131 proteinlerin temizlenme oran\u0131nda art\u0131\u015f ya\u015fan\u0131r. \u0130nsanda uyku s\u0131ras\u0131ndaki BOS ak\u0131\u015f\u0131n\u0131n nas\u0131l ger\u00e7ekle\u015fti\u011finin ortaya konmas\u0131n\u0131n ger\u00e7ekten olduk\u00e7a \u00f6nemli oldu\u011funun alt\u0131n\u0131 \u00e7izen biliminsanlar\u0131, Alzheimer ve benzeri hastal\u0131klarda g\u00fc\u00e7l\u00fc BOS dalgalar\u0131n\u0131n etkisiyle bozuklu\u011fun yeni y\u00f6nlerinin belirlenebilece\u011fine i\u015faret ediyorlar.<\/p>\n<p>Sinir h\u00fccrelerinin elektriksel aktivitesinin ya\u015fla birlikte azald\u0131\u011f\u0131 bilinmektedir. Bu d\u00fc\u015f\u00fc\u015f\u00fcn \u00f6zellikle de Alzheimer hastas\u0131 olan ki\u015filerde \u015fiddetli bir bi\u00e7imde oldu\u011fu bilinmekte. \u00c7al\u0131\u015fman\u0131n y\u00fcr\u00fct\u00fcc\u00fclerinden olan biliminsan\u0131 Lewis, d\u00fc\u015f\u00fc\u015f\u00fcn, toksik proteinlerin \u00fcretilmesinde de bir d\u00fc\u015f\u00fc\u015f yaratabilece\u011fini d\u00fc\u015f\u00fcn\u00fcyor. Konuya ili\u015fkin \u00e7al\u0131\u015fmalar, bu ara\u015ft\u0131rman\u0131n \u00f6nc\u00fcl\u00fc\u011f\u00fcnde s\u00fcrecek.<\/p>\n<p><strong>Kaynak:\u00a0<\/strong>https:\/\/www.sciencenews.org\/article\/sleep-may-trigger-rhythmic-power-washing-brain<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Her 20 saniyede bir, beynin belirli b\u00f6lgeleri uyku haline ge\u00e7er. 1 Kas\u0131m g\u00fcn\u00fc Science dergisinde yay\u0131nlanan \u00e7al\u0131\u015fmada i\u015faret edilen bu yava\u015f ve ritmik durum, uykunun beyin sa\u011fl\u0131\u011f\u0131 i\u00e7in neden bu kadar \u00f6nemli oldu\u011funun anla\u015f\u0131lmas\u0131nda yard\u0131mc\u0131 olabilir. Daha \u00f6nceki \u00e7al\u0131\u015fmalar, CSF olarak adland\u0131r\u0131lan s\u0131v\u0131n\u0131n, Alzheimer hastal\u0131\u011f\u0131 ve ba\u015fka birka\u00e7 hastal\u0131kta zararl\u0131 proteinleri beyinden uzakla\u015ft\u0131rabildi\u011fini g\u00f6sterdi. Yeni [&hellip;]<\/p>\n","protected":false},"author":1390,"featured_media":36680,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[982,5516,1631,5515,495],"class_list":["post-38101","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-alzheimer","tag-bos-dalgalari","tag-hastalik","tag-kan-akisi","tag-sinirbilim"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/38101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/users\/1390"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=38101"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/38101\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/36680"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=38101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=38101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=38101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}