\u0130nsan beyninin so\u011fuk deneyimlerini sadece haf\u0131zas\u0131nda depolamakla kalmay\u0131p, bu an\u0131lar\u0131 kullanarak v\u00fccudun metabolizmas\u0131n\u0131 d\u00fczenledi\u011fine dair \u00e7\u0131\u011f\u0131r a\u00e7an bir ke\u015fif ger\u00e7ekle\u015ftirildi. Dublin Trinity College\u2019dan Prof. Tom\u00e1s Ryan ve ekibi taraf\u0131ndan yap\u0131lan bu \u00f6nc\u00fc \u00e7al\u0131\u015fma, beynin so\u011fuk an\u0131lar\u0131n\u0131 kodlayan sinir a\u011flar\u0131n\u0131n metabolik termoreg\u00fclasyonda aktif rol ald\u0131\u011f\u0131n\u0131 kan\u0131tlad\u0131. Nature dergisinde yay\u0131mlanan ara\u015ft\u0131rma, so\u011fuk deneyimlere y\u00f6nelik haf\u0131za engramlar\u0131n\u0131n nas\u0131l olu\u015ftu\u011funu ve termoregulasyon s\u00fcre\u00e7lerini nas\u0131l etkiledi\u011fini ortaya koyarak, temel bilim ve klinik uygulamalar i\u00e7in geni\u015f ufuklar a\u00e7\u0131yor.<\/p>\n
19. y\u00fczy\u0131l sonlar\u0131ndan itibaren bellek olu\u015fumu bilimsel olarak incelenmi\u015f ve Ivan Pavlov\u2019un klasik ko\u015fullanma deneyleriyle tan\u0131mlanm\u0131\u015ft\u0131r. Pavlov, hayvanlar\u0131n \u00e7evresel uyaranlarla fizyolojik tepkiler aras\u0131nda ba\u011f kurabilece\u011fini g\u00f6stermi\u015f, k\u00f6peklerin yemekle ili\u015fkilendirdikleri zil sesine salya salg\u0131layarak tepki vermeleri bu s\u00fcreci kan\u0131tlam\u0131\u015ft\u0131r. G\u00fcn\u00fcm\u00fcz n\u00f6robiliminde ise haf\u0131zan\u0131n, soyut deneyimlerin yan\u0131 s\u0131ra inflamasyon, a\u011fr\u0131 ve beslenme gibi somatik durumlar\u0131 da i\u00e7eren geni\u015f sinirsel a\u011flarda kodland\u0131\u011f\u0131 anla\u015f\u0131lm\u0131\u015ft\u0131r.<\/p>\n
Bu \u00e7er\u00e7evede ara\u015ft\u0131rmac\u0131lar, \u00f6zellikle so\u011fuk deneyimlerin de \u00f6\u011frenme yoluyla kodlanan haf\u0131za engramlar\u0131 olarak i\u015flev g\u00f6rd\u00fc\u011f\u00fcn\u00fc ve hayatta kalmay\u0131 kolayla\u015ft\u0131ran adaptif i\u015flevler bar\u0131nd\u0131rd\u0131\u011f\u0131n\u0131 ileri s\u00fcrd\u00fc. Bu hipotezi test etmek i\u00e7in sofistike ko\u015fulland\u0131rma protokolleri ve metabolik analizler kullan\u0131ld\u0131. Fareler, donma noktas\u0131 yak\u0131n\u0131nda olan 4\u00b0C s\u0131cakl\u0131kla e\u015fle\u015ftirilmi\u015f \u00f6zg\u00fcn g\u00f6rsel uyaranlara maruz b\u0131rak\u0131ld\u0131. Daha sonra ayn\u0131 g\u00f6rsellere oda s\u0131cakl\u0131\u011f\u0131nda tekrar sunuldu\u011funda, farelerin metabolizma h\u0131z\u0131nda art\u0131\u015f g\u00f6zlenerek, ger\u00e7ek so\u011fuk gelmeden \u00f6nce v\u00fccudun \u0131s\u0131 \u00fcretimini art\u0131rd\u0131\u011f\u0131 ortaya \u00e7\u0131kt\u0131.<\/p>\n
Bu \u00f6nceden tahmini termogenez, beynin so\u011fukla ili\u015fkilendirilmi\u015f haf\u0131zalar\u0131 geri \u00e7a\u011f\u0131r\u0131p, fizyolojik a\u00e7\u0131dan anlaml\u0131 tepkiler yaratabildi\u011fini g\u00f6steriyor. Termoregulasyonun sinirsel mekanizmalar\u0131n\u0131 anlamak i\u00e7in ekip, hipokampusta aktiviteye ba\u011f\u0131ml\u0131 genetik i\u015faretleme y\u00f6ntemleri uygulad\u0131. So\u011fuk ko\u015fulland\u0131rma s\u0131ras\u0131nda aktive olan engram h\u00fccreleri tan\u0131mland\u0131. Optogenetik teknikle, bu h\u00fccrelerin yapay olarak \u0131\u015f\u0131kla uyaranmas\u0131 metabolik h\u0131z\u0131 y\u00fckseltti ve termojenezi tetikledi; ortamda so\u011fuk olmamas\u0131na ra\u011fmen v\u00fccut \u0131s\u0131 \u00fcretmeye ba\u015flad\u0131.<\/p>\n
Ayn\u0131 h\u00fccreler optogenetik olarak engellendi\u011finde ise, fareler daha \u00f6nce \u00f6\u011frenilen so\u011fuk ipu\u00e7lar\u0131na kar\u015f\u0131 metabolik tepkilerini yeterince g\u00f6steremedi. Bu \u00e7ift y\u00f6nl\u00fc m\u00fcdahaleler, so\u011fuk haf\u0131za engramlar\u0131n\u0131n pasif izlerden \u00f6te, termoreg\u00fclasyonda i\u015flevsel olarak rol oynad\u0131\u011f\u0131n\u0131 net bi\u00e7imde ortaya koydu. Bu sonu\u00e7lar, haf\u0131za ve metabolik kontrol aras\u0131nda do\u011frudan ba\u011flar bulundu\u011funu bilimsel olarak teyit etti.<\/p>\n
Ara\u015ft\u0131rma, \u00f6zellikle kahverengi ya\u011f dokusunun (brown adipose tissue, BAT) termojenetik rol\u00fcne dikkat \u00e7ekti. BAT, mitokondrial uncoupling mekanizmalar\u0131 sayesinde enerji yak\u0131p \u0131s\u0131 \u00fcretirken, beyindeki so\u011fuk haf\u0131zas\u0131n\u0131n sempatik sinir sistemi arac\u0131l\u0131\u011f\u0131yla BAT\u2019u mod\u00fcle etti\u011fi belirlendi. Princeton \u00dcniversitesi\u2019nden Prof. Lydia Lynch, beynin \u00f6\u011frenilmi\u015f so\u011fu\u011fu hat\u0131rlayarak sempatik sinirler vas\u0131tas\u0131yla kahverengi ya\u011f\u0131 aktive etti\u011fini ve b\u00f6ylece termojenik \u00e7\u0131kt\u0131y\u0131 dinamik \u015fekilde ayarlad\u0131\u011f\u0131n\u0131 vurgulad\u0131.<\/p>\n
Bu ke\u015ffin t\u0131bbi a\u00e7\u0131dan pek \u00e7ok faydas\u0131 bulunuyor. Termojenezin ve metabolik kontrol\u00fcn bozulmas\u0131n\u0131n obezite, metabolik sendrom ve baz\u0131 kanser t\u00fcrleri gibi hastal\u0131klar\u0131n temelinde yatt\u0131\u011f\u0131 biliniyor. Ara\u015ft\u0131rman\u0131n e\u015f-yazar\u0131 Dr. Aaron Douglas, so\u011fuk haf\u0131za devrelerinin hedeflenerek insanlarda metabolizman\u0131n kontroll\u00fc bi\u00e7imde d\u00fczenlenebilece\u011fini savunuyor. Bu yakla\u015f\u0131m, mevcut metabolik m\u00fcdahaleleri tamamlay\u0131c\u0131 veya alternatif bir tedavi y\u00f6ntemi olma potansiyeli ta\u015f\u0131yor.<\/p>\n
Bununla birlikte \u00e7al\u0131\u015fma, bedenin i\u00e7sel deneyimlerinin sadece fizyolojik de\u011fil, bili\u015fsel ve duygusal s\u00fcre\u00e7leri de \u015fekillendirdi\u011fini g\u00f6steren g\u00fc\u00e7l\u00fc bir \u00f6rnek te\u015fkil ediyor. So\u011fuk an\u0131lar\u0131n olu\u015fumu, karma\u015f\u0131k insan zihninin temelinin i\u00e7sel duyusal deneyimlere dayand\u0131\u011f\u0131n\u0131 ve karma\u015f\u0131k zihinsel i\u015flemler ile duygular\u0131n evrimsel k\u00f6kenlerinin bu beden hissiyatlar\u0131nda sakl\u0131 oldu\u011funu ortaya koyuyor. Prof. Ryan, bu b\u00fct\u00fcnsel perspektifin haf\u0131za ve duygu biyolojik temellerini \u00e7\u00f6zmede \u00e7ok \u00f6nemli oldu\u011funu belirtti.<\/p>\n
Ara\u015ft\u0131rman\u0131n ba\u015far\u0131s\u0131nda disiplinler aras\u0131 i\u015f birli\u011fi \u00f6nemli rol oynad\u0131. Molek\u00fcler n\u00f6robilim teknikleri ile metabolik fizyoloji ve davran\u0131\u015f bilimindeki y\u00f6ntemlerin birle\u015fimi sayesinde, so\u011fuk haf\u0131za olu\u015fumu ve fonksiyonuna dair zengin bir mekanistik anlay\u0131\u015f geli\u015ftirildi. Genetik i\u015faretleme, optogenetik, metabolik \u00f6l\u00e7\u00fcmler ve davran\u0131\u015fsal ko\u015fullanma y\u00f6ntemleri birlikte kullan\u0131larak, beynin soyut i\u015flevlerinin somut fizyolojik \u00e7\u0131kt\u0131larla nas\u0131l ili\u015fkili oldu\u011fu kapsaml\u0131 bi\u00e7imde incelendi.<\/p>\n
Gelecekte bu ara\u015ft\u0131rma, di\u011fer duyusal modalitelerin ve fizyolojik durumlar\u0131n benzer haf\u0131za engramlar\u0131yla nas\u0131l kodland\u0131\u011f\u0131n\u0131 ve bu an\u0131lar\u0131n karar verme, sosyal davran\u0131\u015f ya da duygusal d\u00fczenlemenin nas\u0131l etkiledi\u011fini ara\u015ft\u0131rmak i\u00e7in zemin haz\u0131rl\u0131yor. Ayr\u0131ca, insan \u00e7al\u0131\u015fmalar\u0131na geni\u015fletilerek, haf\u0131za destekli metabolik devrelerin manip\u00fclasyonunun metabolik ve duygusal bozukluklar\u0131n tedavisinde \u00e7\u0131\u011f\u0131r a\u00e7mas\u0131 bekleniyor.<\/p>\n
Sonu\u00e7 olarak, bu yenilik\u00e7i \u00e7al\u0131\u015fma, so\u011fuk deneyimlerin hipokampus i\u00e7indeki se\u00e7kin n\u00f6ron topluluklar\u0131 taraf\u0131ndan kodland\u0131\u011f\u0131n\u0131 ve bu haf\u0131zalar\u0131n termoreg\u00fclasyon i\u00e7in metabolik tepkileri organize etti\u011fini ispat ediyor. Beyin-metabolizma ekseninde ortaya konan bu adaptif strateji, beynin \u00e7evresel zorluklar\u0131 \u00f6nceden tahmin edip v\u00fccudun fizyolojik kaynaklar\u0131n\u0131 buna g\u00f6re y\u00f6nlendirdi\u011fini g\u00f6steriyor. Bellek bilimini metabolik kontrolle birle\u015ftiren bu ara\u015ft\u0131rma, zihnin bedensel temellerinin anla\u015f\u0131lmas\u0131nda ve yenilik\u00e7i t\u0131bbi uygulamalar\u0131n geli\u015ftirilmesinde yeni ufuklar a\u00e7\u0131yor.<\/p>\n
—<\/p>\n
Ara\u015ft\u0131rma Konusu<\/strong>: Doi Referans<\/strong>: Anahtar Kelimeler<\/strong>: \u0130nsan beyninin so\u011fuk deneyimlerini sadece haf\u0131zas\u0131nda depolamakla kalmay\u0131p, bu an\u0131lar\u0131 kullanarak v\u00fccudun metabolizmas\u0131n\u0131 d\u00fczenledi\u011fine dair \u00e7\u0131\u011f\u0131r a\u00e7an bir ke\u015fif ger\u00e7ekle\u015ftirildi. Dublin Trinity College\u2019dan Prof. Tom\u00e1s Ryan ve ekibi taraf\u0131ndan yap\u0131lan bu \u00f6nc\u00fc \u00e7al\u0131\u015fma, beynin so\u011fuk an\u0131lar\u0131n\u0131 kodlayan sinir a\u011flar\u0131n\u0131n metabolik termoreg\u00fclasyonda aktif rol ald\u0131\u011f\u0131n\u0131 kan\u0131tlad\u0131. Nature dergisinde yay\u0131mlanan ara\u015ft\u0131rma, so\u011fuk deneyimlere y\u00f6nelik haf\u0131za engramlar\u0131n\u0131n nas\u0131l…<\/p>\n","protected":false},"author":1,"featured_media":3651,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_focuskw":"","rank_math_title":"","rank_math_description":"","rank_math_focus_keyword":"","_wpan_schema_json_ld":"","_wpan_ai_seo_metadata":"","_wpan_ai_seo_status":"","_wpan_ai_seo_policy":"","_wpan_ai_seo_faq_block":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[28],"tags":[2667,2669,2668,2666,2670],"tmauthors":[],"class_list":{"0":"post-3650","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-kanser","8":"tag-beyin-hafizasinin-termoregulasyona-etkisi","9":"tag-optogenetik-ile-hafiza-engramlarinin-aktivasyonu","10":"tag-sinir-aglari-ve-metabolik-termogenez","11":"tag-soguk-anilar-ve-metabolizma-iliskisi","12":"tag-soguk-deneyimlerin-adaptif-fizyolojik-tepkileri"},"jetpack_featured_media_url":"https:\/\/haber360.com\/wp-content\/uploads\/2025\/04\/Soguk-Anilar-ve-Metabolizma-Uzerindeki-Etkileri-1745424850.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/posts\/3650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/comments?post=3650"}],"version-history":[{"count":0,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/posts\/3650\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/media\/3651"}],"wp:attachment":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/media?parent=3650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/categories?post=3650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/tags?post=3650"},{"taxonomy":"tmauthors","embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/tmauthors?post=3650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nSo\u011fuk deneyimlerin sinirsel olarak kodlanmas\u0131 ve bu haf\u0131zalar\u0131n metabolik termoreg\u00fclasyonda i\u015flevi<\/p>\n
\n10.1038\/s41586-025-08902-6<\/p>\n
\nBellek olu\u015fumu, Bellek bozukluklar\u0131, Metabolizma, \u0130nsan beyni, Hayvan ara\u015ft\u0131rmalar\u0131, Adaptif kontrol, V\u00fccut s\u0131cakl\u0131\u011f\u0131 d\u00fczenlemesi, Duygular, Bellek geri \u00e7a\u011f\u0131r\u0131m\u0131, So\u011fuk an\u0131lar\u0131, N\u00f6roengramlar, Termoregulasyon n\u00f6robilimi, Fizyolojik so\u011fuk tepkileri, S\u0131cakl\u0131k deneyimleri, Hayatta kalma, Bellek ve metabolizma ba\u011flant\u0131s\u0131, Trinity College Dublin, N\u00f6robilim ara\u015ft\u0131rmas\u0131<\/p>\n","protected":false},"excerpt":{"rendered":"