{"id":997,"date":"2026-02-28T16:56:27","date_gmt":"2026-02-28T13:56:27","guid":{"rendered":"https:\/\/www.dbsnewsmedia.com\/?p=997"},"modified":"2026-02-28T16:56:27","modified_gmt":"2026-02-28T13:56:27","slug":"yaslanilsa-da-nasil-beyinden-bilgiler-silinmiyor","status":"publish","type":"post","link":"https:\/\/dbsnewsmedia.com\/?p=997","title":{"rendered":"Ya\u015flan\u0131lsa da nas\u0131l beyinden bilgiler silinmiyor?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">28.02.2026   16:54<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bilim d\u00fcnyas\u0131, 80 ya\u015f\u0131n\u0131 a\u015fm\u0131\u015f olmas\u0131na ra\u011fmen gen\u00e7 bir yeti\u015fkin gibi haf\u0131zaya sahip olan &#8220;s\u00fcper ya\u015fl\u0131lar\u0131&#8221; mercek alt\u0131na ald\u0131. Yap\u0131lan dev \u00e7al\u0131\u015fma, bu bireylerin beyinlerinde h\u00fccre yenilenmesinin normal ya\u015fl\u0131lara g\u00f6re iki kat fazla oldu\u011funu ortaya koydu<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bilim insanlar\u0131, baz\u0131 80 ya\u015f \u00fcst\u00fc bireylerin isimleri, tarihleri ve olaylar\u0131 gen\u00e7lere benzer bir kolayl\u0131kla hat\u0131rlayabilmesinin arkas\u0131ndaki biyolojik mekanizmay\u0131 ara\u015ft\u0131rd\u0131. Yap\u0131lan \u00e7al\u0131\u015fma, bu ki\u015filerin beyinlerinde h\u00fccre yenilenmesinin al\u0131\u015f\u0131lmad\u0131k derecede y\u00fcksek seviyede s\u00fcrd\u00fc\u011f\u00fcn\u00fc g\u00f6sterdi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Times&#8217;\u0131n haberine g\u00f6re ara\u015ft\u0131rmac\u0131lar, bu bireyleri \u201csuper-ager\u201d (s\u00fcper ya\u015fl\u0131) olarak tan\u0131ml\u0131yor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>356 Bin beyin h\u00fccresi incelendi<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ara\u015ft\u0131rma kapsam\u0131nda ba\u011f\u0131\u015flanan&nbsp;<a href=\"https:\/\/gazeteoksijen.com\/haberleri\/beyin\" target=\"_blank\" rel=\"noreferrer noopener\">beyin<\/a>&nbsp;dokular\u0131ndan al\u0131nan yakla\u015f\u0131k 356 bin bireysel beyin h\u00fccresi analiz edildi. \u00c7al\u0131\u015fmada be\u015f grup kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gen\u00e7 yeti\u015fkinler<\/li>\n\n\n\n<li>Sa\u011fl\u0131kl\u0131 ya\u015fl\u0131 bireyler<\/li>\n\n\n\n<li>80 ya\u015f \u00fcst\u00fc s\u00fcper ya\u015fl\u0131lar<\/li>\n\n\n\n<li>Alzheimer hastal\u0131\u011f\u0131n\u0131n erken evresindeki ki\u015filer<\/li>\n\n\n\n<li>Hastal\u0131\u011f\u0131n ileri a\u015famas\u0131ndaki hastalar<\/li>\n\n\n\n<li>Bilim insanlar\u0131 \u00f6zellikle haf\u0131zan\u0131n merkezi olarak kabul edilen hipokampus b\u00f6lgesine ve bunun alt b\u00f6lgesi olan dentat girusa odakland\u0131.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sonu\u00e7lar, s\u00fcper ya\u015fl\u0131 bireylerde bu b\u00f6lgede yeni n\u00f6ron \u00fcretiminin normal ya\u015fl\u0131lara k\u0131yasla belirgin \u015fekilde daha y\u00fcksek oldu\u011funu g\u00f6sterdi. Baz\u0131 vakalarda yeni h\u00fccre \u00fcretimi yakla\u015f\u0131k iki kat\u0131na ula\u015ft\u0131.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u00fcper ya\u015fl\u0131lar\u0131n \u00f6zelli\u011fi ne?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Buna kar\u015f\u0131l\u0131k\u00a0Alzheimer hastalar\u0131nda yeni n\u00f6ron olu\u015fumunun ciddi bi\u00e7imde azald\u0131\u011f\u0131 tespit edildi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">University of Illinois Chicago\u2019dan Prof. Orly Lazarov, \u00e7al\u0131\u015fman\u0131n e\u015f ba\u015fkanl\u0131\u011f\u0131n\u0131 y\u00fcr\u00fctt\u00fc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lazarov, \u201cS\u00fcper ya\u015fl\u0131lar\u0131n beyninde \u00fcst\u00fcn haf\u0131zay\u0131 korumalar\u0131n\u0131 sa\u011flayan bir \u015fey var. Biz bunun hipokampal n\u00f6rojenez oldu\u011funu d\u00fc\u015f\u00fcn\u00fcyoruz ve veriler bunu destekliyor\u201d ifadelerini kulland\u0131.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ara\u015ft\u0131rma ekibi, bu h\u00fccre yenilenmesini kontrol eden mekanizmalar\u0131 da inceleyerek bir ad\u0131m ileri gitti.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"478\" src=\"https:\/\/www.dbsnewsmedia.com\/wp-content\/uploads\/2026\/02\/2-1.jpg\" alt=\"\" class=\"wp-image-1003\" srcset=\"https:\/\/dbsnewsmedia.com\/wp-content\/uploads\/2026\/02\/2-1.jpg 850w, https:\/\/dbsnewsmedia.com\/wp-content\/uploads\/2026\/02\/2-1-300x169.jpg 300w, https:\/\/dbsnewsmedia.com\/wp-content\/uploads\/2026\/02\/2-1-768x432.jpg 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Resim kaynak:<a href=\"https:\/\/gazeteoksijen.com\/saglik\/super-yaslilarin-sirri-266948\">\u2018S\u00fcper ya\u015fl\u0131lar\u2019\u0131n s\u0131rr\u0131<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Haf\u0131za kayb\u0131n\u0131n sebepleri neler?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bilim insanlar\u0131, s\u00fcrecin belirli gen gruplar\u0131n\u0131n faaliyetini d\u00fczenleyen kimyasal \u201canahtarlar\u201d arac\u0131l\u0131\u011f\u0131yla i\u015fledi\u011fini ortaya koydu. Bu mekanizmalar <strong>epigenetik d\u00fczenlemeler<\/strong> olarak adland\u0131r\u0131l\u0131yor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00fcper ya\u015fl\u0131larda, n\u00f6ron b\u00fcy\u00fcmesini destekleyen genlerle ba\u011flant\u0131l\u0131 bu anahtarlar\u0131n a\u00e7\u0131k ve aktif kald\u0131\u011f\u0131 belirlendi. Bu sayede haf\u0131za devreleri sa\u011fl\u0131kl\u0131 ve g\u00fc\u00e7l\u00fc yap\u0131s\u0131n\u0131 koruyabiliyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alzheimer hastalar\u0131nda ise ayn\u0131 epigenetik anahtarlar\u0131n zamanla kapand\u0131\u011f\u0131, hatta hastal\u0131\u011f\u0131n belirgin belirtileri ortaya \u00e7\u0131kmadan \u00f6nce bu s\u00fcrecin ba\u015flad\u0131\u011f\u0131 tespit edildi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ara\u015ft\u0131rmac\u0131lara g\u00f6re haf\u0131za kayb\u0131, do\u011frudan h\u00fccre \u00f6l\u00fcm\u00fcyle de\u011fil; h\u00fccre i\u00e7indeki gen faaliyetlerini d\u00fczenleyen kontrol sistemlerinin bozulmas\u0131yla ba\u015fl\u0131yor olabilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Yeni tedaviler kap\u0131da olabilir<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c7al\u0131\u015fman\u0131n sonu\u00e7lar\u0131, gelecekte yeni tedavi yakla\u015f\u0131mlar\u0131n\u0131n geli\u015ftirilebilece\u011fine i\u015faret ediyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bilim insanlar\u0131, epigenetik anahtarlar\u0131 a\u00e7\u0131k tutmaya yard\u0131mc\u0131 olabilecek ila\u00e7lar\u0131n geli\u015ftirilebilece\u011fini \u00f6ng\u00f6r\u00fcyor. Ayr\u0131ca s\u00fcper ya\u015fl\u0131 bireylerde do\u011fal olarak daha y\u00fcksek seviyelerde bulunan ve beyin h\u00fccrelerini koruyan belirli proteinlerin taklit edilmesi de olas\u0131 tedavi stratejileri aras\u0131nda yer al\u0131yor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ara\u015ft\u0131rmada ayr\u0131ca \u201cana kontrol a\u011flar\u0131\u201d olarak adland\u0131r\u0131lan ve beynin i\u00e7indeki bir\u00e7ok geni y\u00f6neten \u00fcst d\u00fczey gen gruplar\u0131n\u0131n s\u00fcper ya\u015fl\u0131larda daha aktif oldu\u011fu belirlendi. Gelecekte terapilerin bu kontrol a\u011flar\u0131n\u0131 yeniden canland\u0131rmay\u0131 hedefleyebilece\u011fi belirtiliyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Uzmanlar, bu t\u00fcr tedavilerin klinik kullan\u0131ma girmesinin y\u0131llar s\u00fcrebilece\u011fini ve kapsaml\u0131 testlerden ge\u00e7mesi gerekti\u011fini vurguluyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ya\u015flanma bir son de\u011fil<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c7al\u0131\u015fma, ya\u015fl\u0131 beyninin ka\u00e7\u0131n\u0131lmaz olarak i\u015flev kayb\u0131na u\u011frad\u0131\u011f\u0131 y\u00f6n\u00fcndeki karamsar yakla\u015f\u0131m\u0131 da sorguluyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ara\u015ft\u0131rman\u0131n ilk yazar\u0131 Ahmed Disouky, \u201cEn heyecan verici nokta, bu \u00e7al\u0131\u015fman\u0131n ya\u015flanan beynin mutlaka d\u00fc\u015f\u00fc\u015fe mahk\u00fbm olmad\u0131\u011f\u0131n\u0131 g\u00f6stermesi. Baz\u0131 insanlar biyolojik yenilenme mekanizmalar\u0131n\u0131 dokuzuncu on y\u0131llar\u0131na kadar aktif tutabiliyor\u201d ifadelerini kulland\u0131.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bilim insanlar\u0131na g\u00f6re s\u00fcper ya\u015fl\u0131lar\u0131n n\u00f6rojenezi do\u011fal olarak nas\u0131l korudu\u011funu anlamak, daha fazla yeti\u015fkinin haf\u0131za ve bili\u015fsel sa\u011fl\u0131\u011f\u0131n\u0131 uzun y\u0131llar s\u00fcrd\u00fcrebilmesine y\u00f6nelik yeni stratejilerin geli\u015ftirilmesinin \u00f6n\u00fcn\u00fc a\u00e7abilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kaynak:<a href=\"https:\/\/gazeteoksijen.com\/saglik\/insan-beyninde-bilgiler-nasil-silinmeden-kaliyor-super-yaslilarin-hafiza-sirri-cozuldu-267035\">\u0130nsan beyninde bilgiler nas\u0131l silinmeden kal\u0131yor? &#8216;S\u00fcper ya\u015fl\u0131lar\u0131n&#8217; haf\u0131za s\u0131rr\u0131 \u00e7\u00f6z\u00fcld\u00fc<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>28.02.2026 16:54 Bilim d\u00fcnyas\u0131, 80 ya\u015f\u0131n\u0131 a\u015fm\u0131\u015f olmas\u0131na ra\u011fmen gen\u00e7 bir yeti\u015fkin gibi haf\u0131zaya sahip olan &#8220;s\u00fcper ya\u015fl\u0131lar\u0131&#8221; mercek alt\u0131na ald\u0131. Yap\u0131lan dev \u00e7al\u0131\u015fma, bu bireylerin beyinlerinde h\u00fccre yenilenmesinin normal ya\u015fl\u0131lara g\u00f6re iki kat fazla oldu\u011funu ortaya koydu Bilim insanlar\u0131, baz\u0131 80 ya\u015f \u00fcst\u00fc bireylerin isimleri, tarihleri ve olaylar\u0131 gen\u00e7lere benzer bir kolayl\u0131kla hat\u0131rlayabilmesinin arkas\u0131ndaki&#8230;<\/p>\n","protected":false},"author":5,"featured_media":1002,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[12],"tags":[415,414,413],"class_list":["post-997","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saglik","tag-alzehimer","tag-hafiza","tag-yaslilik"],"jetpack_featured_media_url":"https:\/\/dbsnewsmedia.com\/wp-content\/uploads\/2026\/02\/1.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts\/997","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=997"}],"version-history":[{"count":1,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts\/997\/revisions"}],"predecessor-version":[{"id":1005,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts\/997\/revisions\/1005"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/media\/1002"}],"wp:attachment":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}