{"id":5705,"date":"2016-07-28T17:53:02","date_gmt":"2016-07-28T10:53:02","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=5705"},"modified":"2017-10-03T09:34:25","modified_gmt":"2017-10-03T02:34:25","slug":"xuong-nhan-tao-tu-te-bao-lon-co-the-cay-ghep-cho-nguoi","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/xuong-nhan-tao-tu-te-bao-lon-co-the-cay-ghep-cho-nguoi\/","title":{"rendered":"X\u01b0\u01a1ng nh\u00e2n t\u1ea1o t\u1eeb t\u1ebf b\u00e0o l\u1ee3n c\u00f3 th\u1ec3 c\u1ea5y gh\u00e9p cho ng\u01b0\u1eddi"},"content":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc M\u1ef9 l\u1ea7n \u0111\u1ea7u ti\u00ean t\u00e1i t\u1ea1o th\u00e0nh c\u00f4ng x\u01b0\u01a1ng nh\u00e2n t\u1ea1o t\u1eeb t\u1ebf b\u00e0o l\u1ee3n, m\u1edf ra hy v\u1ecdng \u00e1p d\u1ee5ng tr\u00ean l\u00e2m s\u00e0ng.<\/strong><\/p>\n

H\u00ecnh \u1ea3nh n\u00e0y cho th\u1ea5y x\u01b0\u01a1ng t\u00e1i sinh, v\u1edbi ch\u1ea5t n\u1ec1n kho\u00e1ng (m\u00e0u \u0111\u1ecf) v\u00e0 h\u1ec7 m\u1ea1ch ph\u00e1t tri\u1ec3n (m\u1ea1ch m\u00e1u v\u1edbi c\u00e1c t\u1ebf b\u00e0o h\u1ed3ng c\u1ea7u trong xoang). \u1ea2nh: Sarindr Bhumiratana<\/em><\/p>\n

Theo c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u1edf \u0111\u1ea1i h\u1ecdc Columbia t\u1ea1i New York, M\u1ef9, ph\u1ea7n x\u01b0\u01a1ng \u0111\u01b0\u1ee3c ch\u1ec9nh s\u1eeda thi\u1ebft k\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0o vi\u1ec7c s\u1eeda ch\u1eefa th\u00e0nh c\u00f4ng h\u00e0m d\u01b0\u1edbi c\u00f3 c\u1ea5u t\u1ea1o ph\u1ee9c t\u1ea1p c\u1ee7a l\u1ee3n, m\u1edf \u0111\u01b0\u1eddng cho vi\u1ec7c t\u00e1i t\u1ea1o x\u01b0\u01a1ng \u1edf nh\u1eefng n\u01a1i kh\u00e1c trong c\u01a1 th\u1ec3 ng\u01b0\u1eddi.<\/em><\/p>\n

X\u01b0\u01a1ng th\u01b0\u1eddng c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c t\u00ecm ki\u1ebfm nh\u1eefng ph\u1ea7n thay th\u1ebf ph\u00f9 h\u1ee3p \u1edf nh\u1eefng b\u1ec7nh nh\u00e2n c\u00f3 x\u01b0\u01a1ng b\u1ecb t\u1ed5n th\u01b0\u01a1ng do tai n\u1ea1n, b\u1ec7nh t\u1eadt ho\u1eb7c d\u1ecb t\u1eadt b\u1ea9m sinh, theo Live Science.<\/em><\/p>\n

M\u1eb7c d\u00f9 b\u00e1c s\u0129 ph\u1eabu thu\u1eadt c\u00f3 th\u1ec3 thay th\u1ebf ph\u1ea7n x\u01b0\u01a1ng b\u1ecb m\u1ea5t b\u1eb1ng titan, nh\u01b0ng b\u1ea3n th\u00e2n ph\u1ea7n c\u1ea5y gh\u00e9p nh\u00e2n t\u1ea1o n\u00e0y l\u1ea1i thi\u1ebfu t\u1ee7y x\u01b0\u01a1ng, th\u00e0nh ph\u1ea7n \u0111\u00f3ng nhi\u1ec1u vai tr\u00f2 quan tr\u1ecdng trong c\u01a1 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ea1o ra c\u00e1c t\u1ebf b\u00e0o h\u1ed3ng c\u1ea7u v\u00e0 b\u1ea1ch c\u1ea7u.<\/em><\/p>\n

B\u1ec7nh nh\u00e2n c\u00f3 th\u1ec3 gh\u00e9p x\u01b0\u01a1ng hi\u1ebfn t\u1eb7ng, nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 c\u0169ng \u0111\u1eb7t ra c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u0103ng nguy c\u01a1 \u0111\u00e0o th\u1ea3i. Ngo\u00e0i ra, c\u00e1c b\u00e1c s\u0129 c\u00f3 th\u1ec3 l\u1ea5y x\u01b0\u01a1ng t\u1eeb m\u1ed9t ph\u1ea7n kh\u00e1c c\u1ee7a c\u01a1 th\u1ec3 b\u1ec7nh nh\u00e2n v\u00e0 gh\u00e9p n\u00f3 v\u00e0o n\u01a1i c\u1ea7n thi\u1ebft, nh\u01b0ng \u0111i\u1ec1u n\u00e0y l\u1ea1i g\u00e2y ra t\u1ed5n th\u01b0\u01a1ng t\u1ea1i v\u00f9ng b\u1ecb l\u1ea5y x\u01b0\u01a1ng, khi\u1ebfn ng\u01b0\u1eddi b\u1ec7nh \u0111au \u0111\u1edbn.<\/em><\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc hy v\u1ecdng s\u1ebd t\u00e1i t\u1ea1o th\u00e0nh c\u00f4ng x\u01b0\u01a1ng trong ph\u00f2ng th\u00ed nghi\u1ec7m. H\u1ecd t\u1eadp trung v\u00e0o c\u00e1c \u0111\u01a1n v\u1ecb Ramus-condyle, m\u1ed9t b\u1ed9 ph\u1eadn c\u1ee7a h\u00e0m d\u01b0\u1edbi g\u1eafn v\u1edbi h\u1ed9p s\u1ecd \u1edf khu v\u1ef1c g\u1ea7n tai v\u00e0 l\u00e0 x\u01b0\u01a1ng ch\u1ecbu l\u1ef1c ch\u00ednh c\u1ee7a v\u00f9ng m\u1eb7t. H\u1ecd \u0111\u00e3 th\u1eed nghi\u1ec7m tr\u00ean l\u1ee3n Yucat\u00e1n, v\u00ec c\u1ea5u t\u1ea1o v\u00e0 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng h\u00e0m c\u1ee7a ch\u00fang kh\u00e1 gi\u1ed1ng v\u1edbi con ng\u01b0\u1eddi.<\/em><\/p>\n

\u0110\u1ea7u ti\u00ean, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u00e1ch m\u1ed9t kh\u00fac l\u1edbn t\u1eeb x\u01b0\u01a1ng \u0111\u00f9i b\u00f2 v\u00e0 t\u1ea9y h\u1ebft c\u00e1c t\u1ebf b\u00e0o b\u1eb1ng enzyme v\u00e0 ch\u1ea5t t\u1ea9y r\u1eeda. Sau \u0111\u00f3 h\u1ecd \u0111\u1ebdo nh\u1eefng kh\u1ed1i x\u01b0\u01a1ng \u0111\u00e3 m\u1ea5t t\u1ebf b\u00e0o n\u00e0y sao cho n\u00f3 v\u1eeba kh\u00edt v\u1edbi ph\u1ea7n Ramus-condyle \u0111\u00e3 t\u00e1ch b\u1ecf t\u1eeb l\u1ee3n r\u1ed3i c\u1ea5y v\u00e0o gi\u00e0n x\u01b0\u01a1ng c\u00e1c t\u1ebf b\u00e0o g\u1ed1c l\u1ea5y t\u1eeb m\u1ee1 l\u1ee3n.<\/em><\/p>\n

Cu\u1ed1i c\u00f9ng, h\u1ecd \u0111\u1eb7t ch\u00fang trong c\u00e1c “l\u00f2 ph\u1ea3n \u1ee9ng sinh h\u1ecdc” \u0111\u1ec3 c\u00e1c t\u1ebf b\u00e0o g\u1ed1c n\u00e0y \u0111\u01b0\u1ee3c cung c\u1ea5p oxy v\u00e0 ch\u1ea5t dinh d\u01b0\u1ee1ng. Sau ba tu\u1ea7n, c\u00e1c t\u1ebf b\u00e0o g\u1ed1c ph\u00e1t tri\u1ec3n th\u00e0nh x\u01b0\u01a1ng s\u1ed1ng ch\u01b0a tr\u01b0\u1edfng th\u00e0nh.<\/em><\/p>\n

“M\u1eabu x\u01b0\u01a1ng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1edfi c\u00e1c t\u1ebf b\u00e0o c\u1ee7a b\u00ean \u0111\u01b0\u1ee3c ti\u1ebfp nh\u1eadn”, k\u1ef9 s\u01b0 sinh h\u1ecdc Gordana Vunjak-Novakovic, t\u00e1c gi\u1ea3 c\u1ea5p cao c\u1ee7a c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u cho bi\u1ebft.<\/em><\/p>\n

N\u1ebfu c\u00e1ch gh\u00e9p x\u01b0\u01a1ng n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec1u tr\u1ecb, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1i t\u1ea1o t\u1eeb nh\u1eefng \u0111\u1ecba \u0111i\u1ec3m c\u00e1ch xa n\u01a1i ti\u1ebfn h\u00e0nh c\u1ea5y gh\u00e9p. \u0110\u1ec3 xem c\u00e1c ph\u1ea7n c\u1ea5y gh\u00e9p c\u1ee7a h\u1ecd s\u1ebd ph\u00e1t tri\u1ec3n th\u1ebf n\u00e0o trong \u0111i\u1ec1u ki\u1ec7n nh\u01b0 v\u1eady, Vunjak-Novakovic v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p \u0111\u00e3 ch\u1ebf t\u1ea1o x\u01b0\u01a1ng v\u00e0 c\u1ea5y gh\u00e9p t\u1ea1i hai \u0111\u1ecba \u0111i\u1ec3m c\u00e1ch nhau h\u01a1n 1.200 d\u1eb7m (1.930 km), \u0111\u00f3 l\u00e0 th\u00e0nh ph\u1ed1 New York v\u00e0 Baton Rouge (bang Louisiana).<\/em><\/p>\n

C\u00e1c t\u1ebf b\u00e0o m\u1ee1 \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00e1ch t\u1eeb l\u1ee3n v\u00e0 v\u1eadn chuy\u1ec3n \u0111\u1ebfn cho c\u00e1c chuy\u00ean gia, v\u00e0 c\u00e1c ph\u1ea7n c\u1ea5y gh\u00e9p, c\u00f9ng v\u1edbi c\u00e1c l\u00f2 ph\u1ea3n \u1ee9ng sinh h\u1ecdc \u0111\u1ec3 duy tr\u00ec ch\u00fang, \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n quay tr\u1edf l\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m l\u1edbn.<\/em><\/p>\n

6 th\u00e1ng sau ph\u1eabu thu\u1eadt, nh\u1eefng ph\u1ea7n c\u1ea5y gh\u00e9p \u0111\u00e3 k\u1ebft h\u1ee3p th\u00e0nh c\u00f4ng v\u00e0o c\u01a1 th\u1ec3 v\u1eadt ch\u1ee7 v\u00e0 t\u00e1i t\u1ea1o x\u01b0\u01a1ng m\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 bi\u1ebfn ch\u1ee9ng n\u00e0o.<\/em><\/p>\n

“\u0110i\u1ec1u b\u1ea5t ng\u1edd l\u00e0 c\u00e1c ph\u1ea7n x\u01b0\u01a1ng \u0111\u01b0\u1ee3c t\u1ea1o ra trong ph\u00f2ng th\u00ed nghi\u1ec7m sau khi c\u1ea5y gh\u00e9p \u0111\u00e3 d\u1ea7n \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi x\u01b0\u01a1ng m\u1edbi \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh t\u1eeb ch\u00ednh c\u01a1 th\u1ec3”, Vunjak-Novakovic cho bi\u1ebft.<\/em><\/p>\n

“\u0110i\u1ec1u n\u00e0y cho th\u1ea5y ph\u1ea7n x\u01b0\u01a1ng \u0111\u01b0\u1ee3c c\u1ea5y gh\u00e9p \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n t\u1ef1 nhi\u00ean c\u1ee7a x\u01b0\u01a1ng g\u1ed1c”.<\/em><\/p>\n

Vunjak-Novakovic l\u01b0u \u00fd r\u1eb1ng ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00e1c m\u00f4 t\u00e1i sinh \u0111\u00e3 v\u01b0\u1ee3t qua c\u00e1c ph\u01b0\u01a1ng ph\u00e1p tr\u01b0\u1edbc \u0111\u00e2y. H\u01a1n n\u1eefa, gi\u00e0n x\u01b0\u01a1ng cho ph\u00e9p h\u00ecnh th\u00e0nh x\u01b0\u01a1ng m\u00e0 kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng c\u00e1c h\u00f3a ch\u1ea5t \u0111\u1eaft ti\u1ec1n nh\u01b0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p tr\u01b0\u1edbc \u0111\u00e2y th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o.<\/em><\/p>\n

“\u0110\u00e2y l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn r\u1ea5t th\u00fa v\u1ecb trong vi\u1ec7c c\u1ea3i thi\u1ec7n y h\u1ecdc t\u00e1i t\u1ea1o cho b\u1ec7nh nh\u00e2n b\u1ecb d\u1ecb t\u1eadt v\u00f9ng s\u1ecd v\u00e0 m\u1eb7t. Ch\u00fang t\u00f4i hy v\u1ecdng s\u1ebd th\u1eed nghi\u1ec7m l\u00e2m s\u00e0ng trong v\u00e0i n\u0103m t\u1edbi”, \u00f4ng n\u00f3i.<\/em><\/p>\n

C\u00e1c th\u1eed nghi\u1ec7m c\u1ea5y gh\u00e9p x\u01b0\u01a1ng l\u00e2m s\u00e0ng s\u1ebd \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh th\u00f4ng qua c\u00f4ng ty c\u1ee7a Vunjak-Novakovic mang t\u00ean epiBone.<\/em><\/p>\n

S\u01a1 \u0111\u1ed3 m\u00f4 t\u1ea3 k\u1ef9 thu\u1eadt ph\u00e1t tri\u1ec3n m\u00f4 x\u01b0\u01a1ng. Trong nghi\u00ean c\u1ee9u, gi\u00e0n x\u01b0\u01a1ng \u0111\u01b0\u1ee3c c\u1ea5y t\u1ebf b\u00e0o g\u1ed1c l\u1ea5y t\u1eeb m\u1ee1 c\u1ee7a l\u1ee3n. \u1ea2nh: S. Bhumiratana<\/em>
\n “\u0110\u01b0\u1ee3c nghi\u00ean c\u1ee9u m\u1ed9t c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n c\u1ee7a t\u01b0\u01a1ng lai l\u00e0 m\u1ed9t \u0111i\u1ec1u v\u00f4 c\u00f9ng h\u1ea5p d\u1eabn v\u00e0 tr\u00e0n \u0111\u1ea7y c\u1ea3m h\u1ee9ng”, t\u00e1c gi\u1ea3 ch\u00ednh c\u1ee7a nghi\u00ean c\u1ee9u n\u00e0y, Sarindr Bhumiratana, nghi\u00ean c\u1ee9u sinh sau ti\u1ebfn s\u0129 t\u1ea1i \u0110\u1ea1i h\u1ecdc Columbia ki\u00eam gi\u00e1m \u0111\u1ed1c khoa h\u1ecdc t\u1ea1i epiBone n\u00f3i.<\/em><\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang th\u1eed nghi\u1ec7m th\u00eam v\u00e0o m\u1ed9t l\u1edbp s\u1ee5n l\u00ean ph\u1ea7n c\u1ea5y gh\u00e9p x\u01b0\u01a1ng s\u1ed1ng \u0111\u1ec3 m\u00f4 ph\u1ecfng x\u01b0\u01a1ng t\u1ef1 nhi\u00ean t\u1ed1t h\u01a1n.<\/em><\/p>\n

“S\u1ee5n l\u00e0 m\u1ed9t l\u1edbp m\u00f4 m\u1ecfng v\u00e0 linh ho\u1ea1t m\u00e0 n\u1eb1m \u1edf \u0111\u1ea7u c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c x\u01b0\u01a1ng c\u1ee7a ch\u00fang ta, gi\u00fap gi\u1ea3m ma s\u00e1t khi chuy\u1ec3n \u0111\u1ed9ng”, Vunjak-Novakovic cho bi\u1ebft. C\u00f4ng tr\u00ecnh \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Science Translational Medicine h\u00f4m 15\/6.<\/em><\/p>\n

Ph\u01b0\u01a1ng Chu<\/em>
\n http:\/\/vnexpress.net<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc M\u1ef9 l\u1ea7n \u0111\u1ea7u ti\u00ean t\u00e1i t\u1ea1o th\u00e0nh c\u00f4ng x\u01b0\u01a1ng nh\u00e2n t\u1ea1o t\u1eeb t\u1ebf b\u00e0o l\u1ee3n, m\u1edf ra hy v\u1ecdng \u00e1p d\u1ee5ng tr\u00ean l\u00e2m s\u00e0ng. H\u00ecnh \u1ea3nh n\u00e0y cho th\u1ea5y x\u01b0\u01a1ng t\u00e1i sinh, v\u1edbi ch\u1ea5t n\u1ec1n kho\u00e1ng (m\u00e0u \u0111\u1ecf) v\u00e0 h\u1ec7 m\u1ea1ch ph\u00e1t tri\u1ec3n (m\u1ea1ch m\u00e1u v\u1edbi c\u00e1c t\u1ebf b\u00e0o h\u1ed3ng c\u1ea7u […]<\/p>\n","protected":false},"author":17,"featured_media":6270,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-5705","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5705","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=5705"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5705\/revisions"}],"predecessor-version":[{"id":6360,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5705\/revisions\/6360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6270"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=5705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=5705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=5705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}