{"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\/vi\/science\/life-sciences\/lactase-persistence-evolution-dairy-consumption\/","title":{"rendered":"S\u1ef1 dai d\u1eb3ng c\u1ee7a lactase: M\u1ed9t s\u1ef1 th\u00edch nghi quan tr\u1ecdng c\u1ee7a con ng\u01b0\u1eddi \u0111\u1ec3 ti\u00eau th\u1ee5 s\u1eefa"},"content":{"rendered":"

Khi con ng\u01b0\u1eddi l\u1ea7n \u0111\u1ea7u u\u1ed1ng s\u1eefa<\/h2>\n\n

S\u1ef1 dai d\u1eb3ng c\u1ee7a lactase: M\u1ed9t s\u1ef1 th\u00edch nghi quan tr\u1ecdng \u0111\u1ec3 ti\u00eau th\u1ee5 s\u1eefa<\/h2>\n\n

Con ng\u01b0\u1eddi c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1eb7c bi\u1ec7t l\u00e0 ti\u00eau h\u00f3a lactose, lo\u1ea1i \u0111\u01b0\u1eddng c\u00f3 trong s\u1eefa, nh\u1edd m\u1ed9t s\u1ef1 th\u00edch nghi ti\u1ebfn h\u00f3a \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase. S\u1ef1 th\u00edch nghi n\u00e0y cho ph\u00e9p ch\u00fang ta ti\u00eau th\u1ee5 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa m\u00e0 kh\u00f4ng b\u1ecb kh\u00f3 ch\u1ecbu v\u1ec1 m\u1eb7t ti\u00eau h\u00f3a.<\/p>\n\n

S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase<\/h2>\n\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u tin r\u1eb1ng s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase \u0111\u00e3 ti\u1ebfn h\u00f3a kho\u1ea3ng 7.500 n\u0103m tr\u01b0\u1edbc \u1edf Trung \u00c2u v\u00e0 v\u00f9ng Balkan, tr\u00f9ng v\u1edbi s\u1ef1 gia t\u0103ng c\u1ee7a ch\u0103n nu\u00f4i b\u00f2 s\u1eefa. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y r\u1eb1ng kh\u1ea3 n\u0103ng ti\u00eau h\u00f3a lactose mang l\u1ea1i l\u1ee3i th\u1ebf ch\u1ecdn l\u1ecdc cho nh\u1eefng ng\u01b0\u1eddi ti\u1ec1n s\u1eed d\u1ef1a v\u00e0o c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa nh\u01b0 m\u1ed9t ngu\u1ed3n dinh d\u01b0\u1ee1ng.<\/p>\n\n

S\u1ef1 ph\u00e2n b\u1ed1 v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd c\u1ee7a s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase<\/h2>\n\n

S\u1ef1 dai d\u1eb3ng c\u1ee7a lactase ph\u1ed5 bi\u1ebfn h\u01a1n \u1edf nh\u1eefng qu\u1ea7n th\u1ec3 c\u00f3 l\u1ecbch s\u1eed ti\u00eau th\u1ee5 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1eefng qu\u1ea7n th\u1ec3 \u1edf ch\u00e2u \u00c2u v\u00e0 B\u1eafc M\u1ef9. Tuy nhi\u00ean, n\u00f3 \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n \u1edf nh\u1eefng qu\u1ea7n th\u1ec3 tr\u01b0\u1edbc \u0111\u00e2y ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c ngu\u1ed3n dinh d\u01b0\u1ee1ng kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1eefng qu\u1ea7n th\u1ec3 \u1edf \u0110\u00f4ng \u00c1 v\u00e0 Ch\u00e2u Phi.<\/p>\n\n

Vai tr\u00f2 c\u1ee7a vi\u1ec7c ti\u00eau th\u1ee5 s\u1eefa \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi<\/h2>\n\n

C\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa l\u00e0 ngu\u1ed3n cung c\u1ea5p d\u1ed3i d\u00e0o c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng thi\u1ebft y\u1ebfu, bao g\u1ed3m canxi, protein v\u00e0 vitamin D. Canxi r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe c\u1ee7a x\u01b0\u01a1ng, trong khi protein r\u1ea5t c\u1ea7n thi\u1ebft cho s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 ph\u1ee5c h\u1ed3i c\u01a1 b\u1eafp. Vitamin D, ch\u1ee7 y\u1ebfu c\u00f3 \u0111\u01b0\u1ee3c t\u1eeb \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi v\u00e0 th\u1ef1c ph\u1ea9m t\u0103ng c\u01b0\u1eddng, \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh h\u1ea5p th\u1ee5 canxi.<\/p>\n\n

T\u00e1c \u0111\u1ed9ng c\u1ee7a vi\u1ec7c gi\u1ea3m ti\u1ebfp x\u00fac v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi \u0111\u1ed1i v\u1edbi s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase<\/h2>\n\n

M\u1ed9t gi\u1ea3 thuy\u1ebft ph\u1ed5 bi\u1ebfn cho r\u1eb1ng s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase \u0111\u00e3 ti\u1ebfn h\u00f3a \u1edf nh\u1eefng v\u00f9ng kh\u00ed h\u1eadu ph\u00eda b\u1eafc, n\u01a1i ti\u1ebfp x\u00fac v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi b\u1ecb h\u1ea1n ch\u1ebf. \u1ede nh\u1eefng khu v\u1ef1c n\u00e0y, m\u1ee9c vitamin D th\u1ea5p h\u01a1n v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa cung c\u1ea5p m\u1ed9t ngu\u1ed3n thay th\u1ebf cho ch\u1ea5t dinh d\u01b0\u1ee1ng thi\u1ebft y\u1ebfu n\u00e0y. Tuy nhi\u00ean, c\u00e1c nghi\u00ean c\u1ee9u g\u1ea7n \u0111\u00e2y \u0111\u00e3 th\u00e1ch th\u1ee9c gi\u1ea3 thuy\u1ebft n\u00e0y, v\u00ec s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase c\u0169ng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y \u1edf nh\u1eefng qu\u1ea7n th\u1ec3 s\u1ed1ng \u1edf nh\u1eefng v\u00f9ng nhi\u1ec1u n\u1eafng.<\/p>\n\n

T\u1ea7m quan tr\u1ecdng v\u1ec1 m\u1eb7t v\u0103n h\u00f3a c\u1ee7a ch\u0103n nu\u00f4i b\u00f2 s\u1eefa<\/h2>\n\n

Ch\u0103n nu\u00f4i b\u00f2 s\u1eefa \u0111\u00e3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c x\u00e3 h\u1ed9i lo\u00e0i ng\u01b0\u1eddi trong nhi\u1ec1u th\u1ebf k\u1ef7. C\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ngu\u1ed3n th\u1ef1c ph\u1ea9m, qu\u1ea7n \u00e1o v\u00e0 n\u01a1i tr\u00fa \u1ea9n. Trong nhi\u1ec1u n\u1ec1n v\u0103n h\u00f3a, c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa g\u1eafn li\u1ec1n v\u1edbi s\u1ef1 gi\u00e0u c\u00f3 v\u00e0 th\u1ecbnh v\u01b0\u1ee3ng.<\/p>\n\n

C\u1ea5u tr\u00fac ph\u00e2n t\u1eed c\u1ee7a lactose<\/h2>\n\n

Lactose l\u00e0 m\u1ed9t lo\u1ea1i \u0111\u01b0\u1eddng \u0111\u00f4i bao g\u1ed3m glucose v\u00e0 galactose. \u0110\u00e2y l\u00e0 lo\u1ea1i \u0111\u01b0\u1eddng ch\u00ednh c\u00f3 trong s\u1eefa. C\u01a1 th\u1ec3 con ng\u01b0\u1eddi s\u1ea3n xu\u1ea5t m\u1ed9t lo\u1ea1i enzyme g\u1ecdi l\u00e0 lactase, lo\u1ea1i enzyme n\u00e0y ph\u00e2n h\u1ee7y lactose th\u00e0nh glucose v\u00e0 galactose, cho ph\u00e9p h\u1ea5p th\u1ee5 v\u00e0 s\u1eed d\u1ee5ng lactose \u0111\u1ec3 t\u1ea1o n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n

V\u0103n h\u00f3a \u0111\u1ed3 g\u1ed1m d\u1ea3i b\u0103ng v\u00e0 ch\u0103n nu\u00f4i b\u00f2 s\u1eefa<\/h2>\n\n

V\u0103n h\u00f3a \u0111\u1ed3 g\u1ed1m d\u1ea3i b\u0103ng l\u00e0 m\u1ed9t n\u1ec1n v\u0103n h\u00f3a th\u1eddi k\u1ef3 \u0111\u1ed3 \u0111\u00e1 m\u1edbi th\u1ecbnh h\u00e0nh \u1edf Trung \u00c2u v\u00e0o kho\u1ea3ng 7.500 n\u0103m tr\u01b0\u1edbc. Ng\u01b0\u1eddi ta tin r\u1eb1ng n\u1ec1n v\u0103n h\u00f3a n\u00e0y l\u00e0 m\u1ed9t trong nh\u1eefng n\u1ec1n v\u0103n h\u00f3a \u0111\u1ea7u ti\u00ean th\u1ef1c h\u00e0nh ch\u0103n nu\u00f4i b\u00f2 s\u1eefa. B\u1eb1ng ch\u1ee9ng v\u1ec1 vi\u1ec7c ti\u00eau th\u1ee5 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u00e1c m\u1ea3nh v\u1ee1 \u0111\u1ed3 g\u1ed1m t\u1eeb c\u00e1c khu \u0111\u1ecbnh c\u01b0 c\u1ee7a n\u1ec1n v\u0103n h\u00f3a \u0111\u1ed3 g\u1ed1m d\u1ea3i b\u0103ng.<\/p>\n\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n

S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase \u0111\u00e3 c\u00f3 t\u00e1c \u0111\u1ed9ng s\u00e2u s\u1eafc \u0111\u1ebfn l\u1ecbch s\u1eed lo\u00e0i ng\u01b0\u1eddi. S\u1ef1 th\u00edch nghi n\u00e0y \u0111\u00e3 cho ph\u00e9p ch\u00fang ta ti\u00eau th\u1ee5 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa, m\u1ed9t ngu\u1ed3n th\u1ef1c ph\u1ea9m b\u1ed5 d\u01b0\u1ee1ng v\u00e0 \u0111a d\u1ea1ng. Ch\u0103n nu\u00f4i b\u00f2 s\u1eefa c\u0169ng \u0111\u00e3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c x\u00e3 h\u1ed9i lo\u00e0i ng\u01b0\u1eddi, cung c\u1ea5p th\u1ee9c \u0103n, qu\u1ea7n \u00e1o v\u00e0 n\u01a1i tr\u00fa \u1ea9n. Vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 ti\u1ebfn h\u00f3a v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a s\u1ef1 dai d\u1eb3ng c\u1ee7a lactase gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 m\u1ed1i quan h\u1ec7 ph\u1ee9c t\u1ea1p gi\u1eefa con ng\u01b0\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng c\u1ee7a h\u1ecd.<\/p>","protected":false},"excerpt":{"rendered":"

Khi con ng\u01b0\u1eddi l\u1ea7n \u0111\u1ea7u u\u1ed1ng s\u1eefa S\u1ef1 dai d\u1eb3ng c\u1ee7a lactase: M\u1ed9t s\u1ef1 th\u00edch nghi quan tr\u1ecdng \u0111\u1ec3 ti\u00eau th\u1ee5 s\u1eefa Con ng\u01b0\u1eddi c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1eb7c bi\u1ec7t l\u00e0…<\/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":[5637,146,5635,136,5636],"class_list":["post-2856","post","type-post","status-publish","format-standard","hentry","category-life-sciences","tag-neolithic-cultures","tag-nutrition","tag-lactase-persistence","tag-evolution","tag-dairy-consumption"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=2856"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2856\/revisions"}],"predecessor-version":[{"id":2857,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2856\/revisions\/2857"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=2856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=2856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=2856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}