Kilo vermek, her zaman herkes i\u00e7in kolay de\u011fildir. Bilim insanlar\u0131 sonunda bu durumun nedenini bulmu\u015f olabilir.<\/p>\n
Baz\u0131 insanlar fazladan kilolar\u0131n\u0131 vermekte, obeziteden kurtulmakta, zay\u0131f ki\u015filere g\u00f6re daha \u00e7ok zorlanabilirler. Ara\u015ft\u0131rmalar, a\u015f\u0131r\u0131 kilolu insanlar\u0131n beyinlerinde ne zaman tok olduklar\u0131n\u0131 anlamalar\u0131n\u0131 zorla\u015ft\u0131ran bir sorun oldu\u011funu ortaya \u00e7\u0131kard\u0131.<\/p>\n
\u00c7al\u0131\u015fmalarda, fazla kilolu veya obez olan ki\u015filerin daha b\u00fcy\u00fck bir hipotalamusa sahip oldu\u011fu tespit edilen 1.351 ki\u015finin beyin taramalar\u0131 incelendi. Hipotalamus, i\u015ftah\u0131n d\u00fczenlenmesinde yer alan beynin \u00f6nemli bir alan\u0131.<\/p>\n
MRI tarama sonu\u00e7lar\u0131, a\u015f\u0131r\u0131 kilolu ki\u015filerin ba\u011f\u0131rsaklardan \u201cdoydunuz, yemeyi b\u0131rak\u0131n\u201d diyen sinyalleri almakla ilgili hipotalamusta \u00fc\u00e7 geni\u015flemi\u015f alana sahip oldu\u011funu g\u00f6steriyor. Bu geni\u015fleme, sinyallerin d\u00fczg\u00fcn bir \u015fekilde iletilmesini engelleyebilir. Bu da fazla kilolu olan insanlar i\u00e7in diyet yapmay\u0131 zorla\u015ft\u0131rabilir.<\/p>\n
\u00c7al\u0131\u015fmay\u0131 y\u00f6neten Cambridge \u00dcniversitesi\u2019nden Dr Stephanie Brown, \u201cBu ara\u015ft\u0131rma, fazla kilolu veya obezite ile ya\u015fayan insanlarda meydana gelen beyin de\u011fi\u015fiklikleri hakk\u0131nda daha fazla bilgi edinmemize yard\u0131mc\u0131 oluyor; beyinlerimiz ve biyolojimiz kilo vermeyi zorla\u015ft\u0131rabilir\u201d dedi.<\/p>\n
\u00d6ncelikle farelerde yap\u0131lan \u00e7al\u0131\u015fmalar, insanlardaki durumu da a\u00e7\u0131klayabilir, ancak insanlar \u00fczerindeki \u00e7al\u0131\u015fma hen\u00fcz bu durumu do\u011frudan g\u00f6stermedi, bu da \u00e7ok daha fazla ara\u015ft\u0131rmaya ihtiya\u00e7 oldu\u011fu anlam\u0131na geliyor.<\/p>\n
\u00c7al\u0131\u015fma, 18 ila 40 ya\u015flar\u0131 aras\u0131ndaki insanlar\u0131 inceledi ve sa\u011fl\u0131kl\u0131 kilolu, fazla kilolu, BMI 25\u2019in \u00fczerinde olan ve BMI 30\u2019un \u00fczerinde olan obez ki\u015filerin beyinlerini kar\u015f\u0131la\u015ft\u0131rd\u0131.<\/p>\n
Bir ki\u015finin BMI\u2019si ortalama olarak ne kadar y\u00fcksekse, hipotalamusu o kadar b\u00fcy\u00fckt\u00fcr. Normalde badem b\u00fcy\u00fckl\u00fc\u011f\u00fcnde olan hipotalamusu, i\u00e7erdi\u011fi beyin dokusu birbirine \u00e7ok benzedi\u011finden MR makinesi kullanarak g\u00f6rmek \u00e7ok zordur. Ancak ara\u015ft\u0131rmac\u0131lar, farkl\u0131 h\u00fccre t\u00fcrlerini tan\u0131mlayarak g\u00f6rmeyi daha net hale getiren y\u00fcksek teknolojili bir algoritma kulland\u0131lar.<\/p>\n","protected":false},"excerpt":{"rendered":"
Ara\u015ft\u0131rmac\u0131lar, kilo vermekte zorlanan, obeziteden ve \u015fi\u015fmanl\u0131ktan muzdarip insanlarla ilgili yapt\u0131klar\u0131 \u00e7al\u0131\u015fmayla dikkat \u00e7ekti. Me\u011fer beyindeki o \u00f6nemli alanda sorun ya\u015f\u0131yorlarm\u0131\u015f…<\/p>\n","protected":false},"author":1,"featured_media":109671,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[165,317,3011,243],"class_list":["post-109670","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saglik","tag-beyin","tag-calisma","tag-insanlar","tag-kilo"],"_links":{"self":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/109670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=109670"}],"version-history":[{"count":1,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/109670\/revisions"}],"predecessor-version":[{"id":109672,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/109670\/revisions\/109672"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/media\/109671"}],"wp:attachment":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=109670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=109670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=109670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}