{"id":18902,"date":"2017-12-29T15:32:55","date_gmt":"2017-12-29T12:32:55","guid":{"rendered":"http:\/\/109.232.216.219\/~bilimvegelecek\/?p=18902"},"modified":"2018-02-08T16:11:00","modified_gmt":"2018-02-08T13:11:00","slug":"sac-ve-cilt-tonumuzu-neandertallerden-miras-aldigimiz-genler-belirliyor","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2017\/12\/29\/sac-ve-cilt-tonumuzu-neandertallerden-miras-aldigimiz-genler-belirliyor","title":{"rendered":"Sa\u00e7 ve cilt tonumuzu Neandertallerden miras ald\u0131\u011f\u0131m\u0131z genler belirliyor!"},"content":{"rendered":"<p>\u0130nsanlar ve\u00a0<em>Neandertal<\/em>ler binlerce y\u0131l \u00f6nce bir araya geldikten sonra iki t\u00fcr aras\u0131 \u00e7iftle\u015fmeler de ba\u015flad\u0131.\u00a0<em>Neandertal<\/em>ler art\u0131k yok olmas\u0131na ra\u011fmen, bug\u00fcn ya\u015fayan Afrikal\u0131 olmayan insanlardaki DNA\u2019n\u0131n yakla\u015f\u0131k y\u00fczde 2\u2019si onlardan geliyor. Son y\u0131llardaki ara\u015ft\u0131rmalar, bu\u00a0<em>Neandertal<\/em>\u00a0genlerinden baz\u0131lar\u0131n\u0131n insan ba\u011f\u0131\u015f\u0131kl\u0131\u011f\u0131na ve modern hastal\u0131klara katk\u0131da bulundu\u011funu g\u00f6stermi\u015ftir.\u00a0<em>Amerikan \u0130nsan Geneti\u011fi Dergisi<\/em>\u2019nde (<em>American Journal of Human Genetics<\/em>) yer alan raporda belirtildi\u011fine g\u00f6re, yeni bir \u00e7al\u0131\u015fmada ara\u015ft\u0131rmac\u0131lar,\u00a0<em>Neandertal<\/em>\u00a0miras\u0131m\u0131z\u0131n cilt tonu, sa\u00e7 rengi, uyku d\u00fczeni, ruh hali ve hatta sigara i\u00e7me durumu dahil olmak \u00fczere di\u011fer \u00f6zelliklere katk\u0131da bulundu\u011funu ke\u015ffetti.<\/p>\n<p><em>Neandertal<\/em>\u00a0DNA\u2019s\u0131 ile hastal\u0131k riski aras\u0131ndaki ili\u015fkileri bulan daha \u00f6nceki bir ara\u015ft\u0131rmadan esinlenen Alman Max Planck Evrimsel Antropoloji Enstit\u00fcs\u00fc\u2019nden Janet Kelso, ekibinin\u00a0<em>Neandertal<\/em>\u00a0DNA\u2019s\u0131 ve hastal\u0131kla ilgisi olmayan \u00f6zellikler aras\u0131ndaki ba\u011flant\u0131y\u0131 ara\u015ft\u0131rmakla ilgilendi\u011fini s\u00f6yl\u00fcyor. Ba\u015fka bir deyi\u015fle, \u201c<em>Neandertal<\/em>\u00a0DNA\u2019s\u0131n\u0131n, bug\u00fcn insanlardaki ola\u011fan varyasyonlar \u00fczerinde sahip olabilece\u011fi etkileri\u201d ortaya \u00e7\u0131karmak istiyorlar.<\/p>\n<p><em>Neanderta<\/em>l allelleri nispeten nadir oldu\u011fundan ara\u015ft\u0131rmac\u0131lar, \u00e7ok say\u0131da insan\u0131 temsil eden verileri gereksiniyorlard\u0131. \u0130ngiltere\u2019deki Biyobank pilot \u00e7al\u0131\u015fmas\u0131nda, 112.000\u2019den fazla kat\u0131l\u0131mc\u0131y\u0131 temsil eden verilerde arad\u0131klar\u0131n\u0131 buldular. Biyobank genetik verileri, fiziksel g\u00f6r\u00fcn\u00fcm, diyet, g\u00fcne\u015fe maruz kalma, davran\u0131\u015f ve hastal\u0131kla ilgili bir\u00e7ok \u00f6zellik hakk\u0131nda bilgi i\u00e7eriyor.<\/p>\n<p>Kelso, daha \u00f6nceki \u00e7al\u0131\u015fmalar\u0131n, deri ve sa\u00e7 biyolojisinin i\u00e7erdi\u011fi insan genlerinin,\u00a0<em>Neandertal\u00a0<\/em>DNA\u2019s\u0131ndan kuvvetle etkilendi\u011fini ortaya \u00e7\u0131kard\u0131\u011f\u0131n\u0131 s\u00f6yl\u00fcyor. Ancak bunun nas\u0131l oldu\u011fu a\u00e7\u0131k de\u011fil.<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, cilt ve sa\u00e7 tonlar\u0131na katk\u0131da bulunan \u00e7ok say\u0131da farkl\u0131\u00a0<em>Neandertal<\/em>\u00a0allellerini izliyorlar. Baz\u0131 Neandertal allellerinin a\u00e7\u0131k cilt tonlar\u0131yla, di\u011ferlerinin daha koyu cilt tonlar\u0131yla ili\u015fkilendirilmesi gibi, \u015fa\u015f\u0131rt\u0131c\u0131 bulgular\u0131 da var. Sa\u00e7 rengi i\u00e7in de ayn\u0131 \u015fey ge\u00e7erli. Ara\u015ft\u0131rman\u0131n ba\u015fyazar\u0131 Michael Dannemann, \u201cBu bulgular,\u00a0<em>Neandertal<\/em>lerin sa\u00e7 ve cilt tonlar\u0131nda farkl\u0131l\u0131klar oldu\u011funu g\u00f6steriyor\u201d diyor.<\/p>\n<p>Kelso,\u00a0<em>Neandertal<\/em>\u00a0DNA\u2019s\u0131ndan etkilenen cilt ve sa\u00e7 pigmentasyonu, ruh hali ve uyku d\u00fczenini i\u00e7eren \u00f6zelliklerin hepsinin g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131na maruz kalmayla ba\u011flant\u0131l\u0131 oldu\u011funu i\u015faret ediyor.<\/p>\n<p>Modern insanlar yakla\u015f\u0131k 100.000 y\u0131l \u00f6nce Avrasya\u2019ya geldi\u011finde,\u00a0<em>Neandertal<\/em>ler binlerce y\u0131ld\u0131r burada ya\u015f\u0131yordu. Muhtemelen, Afrika\u2019dan yeni gelen insanlara k\u0131yasla, g\u00fcne\u015ften ultraviyole \u0131\u015f\u0131nlar\u0131n\u0131n daha d\u00fc\u015f\u00fck ve daha de\u011fi\u015fken seviyelerine adapte olmu\u015flard\u0131.<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, \u201cCilt ve sa\u00e7 rengi, sirkadiyen ritimler ve ruh hali, t\u00fcm\u00fcyle \u0131\u015f\u0131k maruziyetinden etkileniyor. Analizlerimizdeki tan\u0131mlamaya dayanarak, g\u00fcne\u015fe maruz kalman\u0131n\u00a0<em>Neandertal<\/em>\u00a0fenotiplerini \u015fekillendirdi\u011fi ve modern insanlara gen ak\u0131\u015f\u0131n\u0131n bug\u00fcn bu \u00f6zellikteki varyasyona katk\u0131da bulunmaya devam etti\u011fi konusunda spek\u00fclasyonda bulunuyoruz\u201d diyorlar.<\/p>\n<p>Kelso ve meslekta\u015flar\u0131, daha fazla veri elde edildi\u011finde\u00a0<em>Neandertal<\/em>lerin g\u00fcn\u00fcm\u00fcz modern insan\u0131n \u00f6zelliklerine etkisini ara\u015ft\u0131rmaya devam edeceklerini s\u00f6yl\u00fcyorlar.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0130nsanlar ve\u00a0Neandertaller binlerce y\u0131l \u00f6nce bir araya geldikten sonra iki t\u00fcr aras\u0131 \u00e7iftle\u015fmeler de ba\u015flad\u0131.\u00a0Neandertaller art\u0131k yok olmas\u0131na ra\u011fmen, bug\u00fcn ya\u015fayan Afrikal\u0131 olmayan insanlardaki DNA\u2019n\u0131n yakla\u015f\u0131k y\u00fczde 2\u2019si onlardan geliyor. Son y\u0131llardaki ara\u015ft\u0131rmalar, bu\u00a0Neandertal\u00a0genlerinden baz\u0131lar\u0131n\u0131n insan ba\u011f\u0131\u015f\u0131kl\u0131\u011f\u0131na ve modern hastal\u0131klara katk\u0131da bulundu\u011funu g\u00f6stermi\u015ftir.\u00a0Amerikan \u0130nsan Geneti\u011fi Dergisi\u2019nde (American Journal of Human Genetics) yer alan raporda belirtildi\u011fine [&hellip;]<\/p>\n","protected":false},"author":383,"featured_media":18910,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[211,19],"tags":[2284,2285,529,2283],"class_list":["post-18902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-antropoloji","category-bilim-gundemi","tag-homo-spaiens","tag-insan-evrimi","tag-neandertal","tag-neanderthal"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/18902","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\/383"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=18902"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/18902\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/18910"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=18902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=18902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=18902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}