{"id":2856,"date":"2020-06-06T18:51:29","date_gmt":"2020-06-06T18:51:29","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=2856"},"modified":"2020-06-06T18:51:29","modified_gmt":"2020-06-06T18:51:29","slug":"lactase-persistence-evolution-dairy-consumption","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/tr\/science\/life-sciences\/lactase-persistence-evolution-dairy-consumption\/","title":{"rendered":"\u0130nsanlar\u0131n S\u00fct\u00fc \u0130lk \u0130\u00e7ti\u011fi Zaman: Laktaz Kal\u0131c\u0131l\u0131\u011f\u0131 ve S\u00fct T\u00fcketiminin \u00d6nemi"},"content":{"rendered":"

\u0130nsanlar\u0131n S\u00fct\u00fc \u0130lk \u0130\u00e7ti\u011fi Zaman<\/h2>\n\n

Laktaz Kal\u0131c\u0131l\u0131\u011f\u0131: S\u00fct T\u00fcketimi \u0130\u00e7in \u00d6nemli Bir Uyarlama<\/h2>\n\n

\u0130nsanlar laktaz kal\u0131c\u0131l\u0131\u011f\u0131 olarak bilinen evrimsel bir uyarlama sayesinde, s\u00fctte bulunan \u015feker olan laktozu sindirebilme konusunda e\u015fsiz bir yetene\u011fe sahiptir. Bu uyarlama, sindirim rahats\u0131zl\u0131\u011f\u0131 ya\u015famadan s\u00fct \u00fcr\u00fcnlerini t\u00fcketmemizi sa\u011flar.<\/p>\n\n

Laktaz Kal\u0131c\u0131l\u0131\u011f\u0131n\u0131n Evrimi<\/h2>\n\n

Ara\u015ft\u0131rmac\u0131lar laktaz kal\u0131c\u0131l\u0131\u011f\u0131n\u0131n yakla\u015f\u0131k 7.500 y\u0131l \u00f6nce Orta Avrupa ve Balkanlar’da s\u00fct \u00e7ift\u00e7ili\u011finin y\u00fckseli\u015fiyle ayn\u0131 zamana denk geldi\u011fine inan\u0131yor. Bu, laktozu sindirme yetene\u011finin, beslenme kayna\u011f\u0131 olarak s\u00fct \u00fcr\u00fcnlerine g\u00fcvenen ilk insanlara se\u00e7ici bir avantaj sa\u011flad\u0131\u011f\u0131n\u0131 d\u00fc\u015f\u00fcnd\u00fcrmektedir.<\/p>\n\n

Laktaz Kal\u0131c\u0131l\u0131\u011f\u0131n\u0131n Co\u011frafi Da\u011f\u0131l\u0131m\u0131<\/h2>\n\n

Laktaz kal\u0131c\u0131l\u0131\u011f\u0131, tarihsel olarak s\u00fct \u00fcr\u00fcnleri t\u00fcketmi\u015f olan topluluklarda, \u00f6rne\u011fin Avrupa ve Kuzey Amerika’dakilerde daha yayg\u0131nd\u0131r. Ancak, geleneksel olarak di\u011fer besin kaynaklar\u0131na, \u00f6rne\u011fin Do\u011fu Asya ve Afrika’dakilere g\u00fcvenmi\u015f olan topluluklarda daha az yayg\u0131nd\u0131r.<\/p>\n\n

S\u00fct T\u00fcketiminin \u0130nsan Sa\u011fl\u0131\u011f\u0131ndaki Rol\u00fc<\/h2>\n\n

S\u00fct \u00fcr\u00fcnleri, kalsiyum, protein ve D vitamini gibi temel besinler a\u00e7\u0131s\u0131ndan zengin bir kaynakt\u0131r. Kalsiyum kemik sa\u011fl\u0131\u011f\u0131 i\u00e7in \u00e7ok \u00f6nemlidir, protein ise kaslar\u0131n b\u00fcy\u00fcmesi ve onar\u0131m\u0131 i\u00e7in gereklidir. Esas olarak g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131ndan ve zenginle\u015ftirilmi\u015f g\u0131dalardan elde edilen D vitamini, kalsiyum emiliminde hayati bir rol oynar.<\/p>\n\n

Azalan G\u00fcne\u015f I\u015f\u0131\u011f\u0131na Maruz Kalman\u0131n Laktaz Kal\u0131c\u0131l\u0131\u011f\u0131na Etkisi<\/h2>\n\n

Pop\u00fcler bir teori, laktaz kal\u0131c\u0131l\u0131\u011f\u0131n\u0131n g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131na maruz kalman\u0131n s\u0131n\u0131rl\u0131 oldu\u011fu kuzey iklimlerinde evrimle\u015fti\u011fini \u00f6ne s\u00fcrmektedir. Bu b\u00f6lgelerde, D vitamini seviyeleri daha d\u00fc\u015f\u00fckt\u00fc ve s\u00fct \u00fcr\u00fcnleri bu temel besinin alternatif bir kayna\u011f\u0131n\u0131 sa\u011fl\u0131yordu. Ancak, son ara\u015ft\u0131rmalar bu teoriyi \u00e7\u00fcr\u00fctm\u00fc\u015ft\u00fcr \u00e7\u00fcnk\u00fc laktaz kal\u0131c\u0131l\u0131\u011f\u0131 g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131 a\u00e7\u0131s\u0131ndan zengin b\u00f6lgelerde ya\u015fayan topluluklarda da bulunmu\u015ftur.<\/p>\n\n

S\u00fct \u00c7ift\u00e7ili\u011finin K\u00fclt\u00fcrel \u00d6nemi<\/h2>\n\n

S\u00fct \u00e7ift\u00e7li\u011fi y\u00fczy\u0131llard\u0131r insan topluluklar\u0131nda \u00f6nemli bir rol oynamaktad\u0131r. S\u00fct \u00fcr\u00fcnleri, besin, giyim ve bar\u0131nak kayna\u011f\u0131 olarak kullan\u0131lm\u0131\u015ft\u0131r. Bir\u00e7ok k\u00fclt\u00fcrde s\u00fct \u00fcr\u00fcnleri, zenginlik ve refahla ili\u015fkilendirilir.<\/p>\n\n

Laktozun Molek\u00fcler Yap\u0131s\u0131<\/h2>\n\n

Laktoz, glikoz ve galaktozdan olu\u015fan bir disakkarittir. S\u00fctte bulunan birincil \u015fekerdir. \u0130nsan v\u00fccudu, laktozu glikoz ve galaktoza ay\u0131ran ve b\u00f6ylece emilip enerji i\u00e7in kullan\u0131lmas\u0131n\u0131 sa\u011flayan laktaz adl\u0131 bir enzim \u00fcretir.<\/p>\n\n

\u015eerit \u00c7anak \u00c7\u00f6mlek K\u00fclt\u00fcr\u00fc ve S\u00fct \u00c7ift\u00e7ili\u011fi<\/h2>\n\n

\u015eerit \u00c7anak \u00c7\u00f6mlek k\u00fclt\u00fcr\u00fc, yakla\u015f\u0131k 7.500 y\u0131l \u00f6nce Orta Avrupa’da geli\u015fen bir Neolitik k\u00fclt\u00fcrd\u00fc. Bu k\u00fclt\u00fcr\u00fcn s\u00fct \u00e7ift\u00e7ili\u011fi yapan ilk k\u00fclt\u00fcrlerden biri oldu\u011funa inan\u0131l\u0131yor. S\u00fct t\u00fcketimine dair kan\u0131tlar, \u015eerit \u00c7anak \u00c7\u00f6mlek yerle\u015fim yerlerindeki \u00e7anak \u00e7\u00f6mlek par\u00e7alar\u0131nda bulunmu\u015ftur.<\/p>\n\n

Sonu\u00e7<\/h2>\n\n

Laktaz kal\u0131c\u0131l\u0131\u011f\u0131n\u0131n evrimi, insanl\u0131k tarihinde derin bir etkiye sahip olmu\u015ftur. Bu uyarlama, besleyici ve \u00e7ok y\u00f6nl\u00fc bir besin kayna\u011f\u0131 olan s\u00fct \u00fcr\u00fcnlerini t\u00fcketmemizi sa\u011flam\u0131\u015ft\u0131r. S\u00fct \u00e7ift\u00e7li\u011fi, yiyecek, giyecek ve bar\u0131nak sa\u011flayarak insan toplumlar\u0131nda da \u00f6nemli bir rol oynam\u0131\u015ft\u0131r. Laktaz kal\u0131c\u0131l\u0131\u011f\u0131n\u0131n evrimini ve \u00f6nemini anlamak, insanlar ve \u00e7evreleri aras\u0131ndaki karma\u015f\u0131k ili\u015fki hakk\u0131nda fikir verir.<\/p>","protected":false},"excerpt":{"rendered":"

\u0130nsanlar\u0131n S\u00fct\u00fc \u0130lk \u0130\u00e7ti\u011fi Zaman Laktaz Kal\u0131c\u0131l\u0131\u011f\u0131: S\u00fct T\u00fcketimi \u0130\u00e7in \u00d6nemli Bir Uyarlama \u0130nsanlar laktaz kal\u0131c\u0131l\u0131\u011f\u0131 olarak bilinen evrimsel bir uyarlama sayesinde, s\u00fctte bulunan \u015feker olan laktozu sindirebilme konusunda e\u015fsiz…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[762],"tags":[146,136,5635,5637,5636],"class_list":["post-2856","post","type-post","status-publish","format-standard","hentry","category-life-sciences","tag-nutrition","tag-evolution","tag-lactase-persistence","tag-neolithic-cultures","tag-dairy-consumption"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=2856"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2856\/revisions"}],"predecessor-version":[{"id":2857,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2856\/revisions\/2857"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=2856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=2856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=2856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}