{"id":5830,"date":"2024-11-15T17:07:36","date_gmt":"2024-11-15T10:07:36","guid":{"rendered":"https:\/\/wilimedia.vn\/?p=5830"},"modified":"2024-12-17T14:46:15","modified_gmt":"2024-12-17T07:46:15","slug":"yeu-to-ve-gen-duoc-di-truyen-tu-bo-me-qua-em-be","status":"publish","type":"post","link":"https:\/\/wilimedia.vn\/yeu-to-ve-gen-duoc-di-truyen-tu-bo-me-qua-em-be\/","title":{"rendered":"Y\u1ebfu T\u1ed1 V\u1ec1 Gen \u0110\u01b0\u1ee3c Di Truy\u1ec1n T\u1eeb B\u1ed1 M\u1eb9 Qua Em Be\u0301: 7 Y\u1ebfu T\u1ed1"},"content":{"rendered":"

Y\u1ebfu T\u1ed1 V\u1ec1 Gen \u0110\u01b0\u1ee3c Di Truy\u1ec1n T\u1eeb B\u1ed1 M\u1eb9 Qua Em Be\u0301: Kh\u00e1m Ph\u00e1 Khoa H\u1ecdc \u0110\u1eb1ng Sau Ve\u0309 Ngoa\u0300i Cu\u0309a Em Be\u0301.<\/strong><\/h2>\n

Nhi\u1ec1u b\u1eadc cha m\u1eb9 lu\u00f4n mong mu\u1ed1n c\u00f3 m\u1ed9t \u0111\u1ee9a tr\u1ebb c\u00f3 khu\u00f4n m\u1eb7t \u0111\u1eb9p. Nh\u01b0ng c\u00f3 ph\u1ea3i khu\u00f4n m\u1eb7t c\u1ee7a em b\u00e9 ho\u00e0n to\u00e0n do gen di truy\u1ec1n quy\u1ebft \u0111\u1ecbnh? C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u hi\u1ec7n \u0111\u1ea1i \u0111\u00e3 th\u1ef1c hi\u1ec7n nhi\u1ec1u nghi\u00ean c\u1ee9u v\u1ec1 di truy\u1ec1n h\u1ecdc nh\u01b0ng h\u1ecd v\u1eabn ch\u01b0a ch\u1eafc ch\u1eafn r\u1eb1ng c\u1ea5u tr\u00fac khu\u00f4n m\u1eb7t c\u1ee7a m\u1ed9t ng\u01b0\u1eddi ho\u00e0n to\u00e0n \u0111\u01b0\u1ee3c truy\u1ec1n l\u1ea1i t\u1eeb b\u1ed1 m\u1eb9 sang con c\u00e1i.<\/p>\n

Trong th\u1ef1c t\u1ebf, em b\u00e9 \u0111\u01b0\u1ee3c th\u1eeba h\u01b0\u1edfng gen di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 g\u1ed3m: Nh\u1eefng \u0111\u1eb7c t\u00ednh nh\u01b0 chi\u1ec1u cao, c\u00e2n n\u1eb7ng, m\u00e1u, m\u00e0u da, s\u1ee9c kh\u1ecfe,\u00a0 m\u1eaft, t\u00f3c c\u0169ng nh\u01b0 nguy c\u01a1 m\u1eafc c\u00e1c b\u1ec7nh di truy\u1ec1n nh\u01b0 b\u1ec7nh tim m\u1ea1ch, ti\u1ec3u \u0111\u01b0\u1eddng, y\u1ebfu t\u1ed1 di truy\u1ec1n c\u0169ng quy\u1ebft \u0111\u1ecbnh ung th\u01b0.<\/p>\n

Ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 vai tr\u00f2 c\u1ee7a gen di truy\u1ec1n trong vi\u1ec7c t\u1ea1o ra khu\u00f4n m\u1eb7t c\u1ee7a em b\u00e9. Tuy nhi\u00ean, s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn nh\u1eefng k\u1ebft qu\u1ea3 b\u1ea5t ng\u1edd. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd kh\u00e1m ph\u00e1 s\u00e2u h\u01a1n v\u1ec1 c\u00e1c y\u1ebfu t\u1ed1 di truy\u1ec1n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ngo\u1ea1i h\u00ecnh v\u00e0 m\u1ed9t c\u01a1 th\u1ec3 ho\u00e0n thi\u1ec7n c\u1ee7a m\u1ed9t \u0111\u1ee9a tr\u1ebb.<\/p>\n

\"Y\u1ebfu<\/figcaption><\/figure>\n

A\u0309nh H\u01b0\u01a1\u0309ng T\u01b0\u0300 Ma\u0300u Da<\/strong><\/h2>\n

M\u00e0u da c\u1ee7a em b\u00e9 l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m di truy\u1ec1n quan tr\u1ecdng, \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9. M\u1ed7i ng\u01b0\u1eddi \u0111\u1ec1u mang trong m\u00ecnh m\u1ed9t h\u1ec7 gen \u0111a d\u1ea1ng, quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn s\u1eafc t\u1ed1 da c\u1ee7a con c\u00e1i. C\u00e1c gen li\u00ean quan \u0111\u1ebfn m\u00e0u da \u0111\u01b0\u1ee3c chuy\u1ec3n giao t\u1eeb th\u1ebf h\u1ec7 n\u00e0y sang th\u1ebf h\u1ec7 kh\u00e1c th\u00f4ng qua qu\u00e1 tr\u00ecnh di truy\u1ec1n gen.<\/p>\n

Trong di truy\u1ec1n h\u1ecdc, m\u00e0u da \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi nhi\u1ec1u gen kh\u00e1c nhau, v\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a ch\u00fang s\u1ebd t\u1ea1o n\u00ean m\u00e0u da cu\u1ed1i c\u00f9ng c\u1ee7a em b\u00e9. Gen n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9, v\u00e0 qu\u00e1 tr\u00ecnh k\u1ebft h\u1ee3p gen s\u1ebd t\u1ea1o ra s\u1ef1 \u0111a d\u1ea1ng v\u1ec1 m\u00e0u da trong c\u1ea3 gia \u0111\u00ecnh.<\/p>\n

C\u00e1c y\u1ebfu t\u1ed1 di truy\u1ec1n kh\u00e1c nhau s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00e0u da c\u1ee7a em b\u00e9, bao g\u1ed3m c\u1ea3 gen li\u00ean quan \u0111\u1ebfn s\u1eafc t\u1ed1 melanin v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c nh\u01b0 \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi. M\u1eb7c d\u00f9 m\u00e0u da c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba t\u1eeb b\u1ed1 ho\u1eb7c m\u1eb9, nh\u01b0ng c\u0169ng c\u00f3 tr\u01b0\u1eddng h\u1ee3p m\u00e0 m\u1ed9t s\u1ed1 gen m\u1edbi xu\u1ea5t hi\u1ec7n trong th\u1ebf h\u1ec7 m\u1edbi, t\u1ea1o ra s\u1ef1 \u0111a d\u1ea1ng kh\u00f4ng ng\u1eebng c\u1ee7a m\u00e0u da.<\/p>\n

A\u0309nh H\u01b0\u01a1\u0309ng T\u01b0\u0300 M\u00e1u\u00a0<\/strong><\/h2>\n

M\u00e1u c\u1ee7a \u0111\u1ee9a tr\u1ebb \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u1ea5u tr\u00fac di truy\u1ec1n trong m\u00e1u c\u1ee7a tr\u1ebb, bao g\u1ed3m nh\u00f3m m\u00e1u v\u00e0 b\u1ea5t k\u1ef3 r\u1ed1i lo\u1ea1n di truy\u1ec1n n\u00e0o v\u1ec1 m\u00e1u, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi s\u1ef1 k\u1ebft h\u1ee3p gen t\u1eeb m\u1eb9 v\u00e0 cha.<\/p>\n

S\u1ef1 di truy\u1ec1n n\u00e0y x\u1ea3y ra trong qu\u00e1 tr\u00ecnh th\u1ee5 thai, trong \u0111\u00f3 v\u1eadt li\u1ec7u di truy\u1ec1n t\u1eeb c\u1ea3 cha l\u1eabn m\u1eb9 k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o ra b\u1ea3n thi\u1ebft k\u1ebf di truy\u1ec1n cho \u0111\u1ee9a tr\u1ebb, bao g\u1ed3m c\u1ea3 th\u00e0nh ph\u1ea7n m\u00e1u c\u1ee7a ch\u00fang.<\/p>\n

S\u1ef1 di truy\u1ec1n c\u1ee7a nh\u00f3m m\u00e1u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c gen c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb cha m\u1eb9 sang con c\u00e1i. Nh\u1eefng gen n\u00e0y x\u00e1c \u0111\u1ecbnh xem m\u1ed9t ng\u01b0\u1eddi c\u00f3 nh\u00f3m m\u00e1u A, B, AB hay O, c\u0169ng nh\u01b0 li\u1ec7u h\u1ecd c\u00f3 y\u1ebfu t\u1ed1 Rh d\u01b0\u01a1ng hay \u00e2m.<\/p>\n

S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c gen n\u00e0y t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9 s\u1ebd x\u00e1c \u0111\u1ecbnh nh\u00f3m m\u00e1u c\u1ee5 th\u1ec3 c\u1ee7a tr\u1ebb. Ngo\u00e0i nh\u00f3m m\u00e1u, c\u00e1c r\u1ed1i lo\u1ea1n v\u1ec1 m\u00e1u di truy\u1ec1n nh\u01b0 b\u1ec7nh m\u00e1u kh\u00f3 \u0111\u00f4ng, b\u1ec7nh thalassemia v\u00e0 thi\u1ebfu m\u00e1u h\u1ed3ng c\u1ea7u h\u00ecnh li\u1ec1m c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n l\u1ea1i t\u1eeb cha m\u1eb9 sang con c\u00e1i.<\/p>\n

A\u0309nh H\u01b0\u01a1\u0309ng T\u01b0\u0300 C\u00e2n N\u1eb7ng\u00a0<\/strong><\/h2>\n

C\u00e2n n\u1eb7ng c\u1ee7a em b\u00e9 \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n v\u00e0 t\u0103ng tr\u01b0\u1edfng c\u1ee7a tr\u1ebb. Di Truy\u1ec1n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e2n n\u1eb7ng c\u1ee7a em b\u00e9 t\u1eeb khi c\u00f2n trong b\u1ee5ng m\u1eb9 v\u00e0 sau khi sinh ra. C\u00e2n n\u1eb7ng c\u1ee7a em b\u00e9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1 di truy\u1ec1n t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9.<\/p>\n

\"\"<\/figcaption><\/figure>\n

C\u00e1c gen li\u00ean quan \u0111\u1ebfn c\u00e2n n\u1eb7ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n giao t\u1eeb b\u1ed1 v\u00e0 m\u1eb9 \u0111\u1ebfn em b\u00e9 th\u00f4ng qua qu\u00e1 tr\u00ecnh di truy\u1ec1n. C\u00e1c gen n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 dinh d\u01b0\u1ee1ng v\u00e0 qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a ch\u1ea5t b\u00e9o trong c\u01a1 th\u1ec3 c\u1ee7a em b\u00e9.<\/p>\n

Ngo\u00e0i ra, c\u00e2n n\u1eb7ng c\u1ee7a b\u1ed1 v\u00e0 m\u1eb9 c\u0169ng c\u00f3 th\u1ec3 l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e2n n\u1eb7ng c\u1ee7a em b\u00e9.Trong tr\u01b0\u1eddng h\u1ee3p c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9 \u0111\u1ec1u c\u00f3 c\u00e2n n\u1eb7ng cao, kh\u1ea3 n\u0103ng em b\u00e9 s\u1ebd c\u00f3 c\u00e2n n\u1eb7ng cao h\u01a1n l\u00e0 r\u1ea5t cao. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9 \u0111\u1ec1u g\u1ea7y \u1ed1m, t\u1ec9 l\u1ec7 em b\u00e9 c\u00f3 th\u1ec3 g\u1ea7y c\u0169ng r\u1ea5t cao<\/p>\n

A\u0309nh H\u01b0\u01a1\u0309ng T\u01b0\u0300 Chi\u1ec1u Cao\u00a0<\/strong><\/h2>\n

Theo nghi\u00ean c\u1ee9u, chi\u1ec1u cao c\u1ee7a em b\u00e9 \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9. Gen di truy\u1ec1n t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9 \u0111\u1ec1u c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn chi\u1ec1u cao c\u1ee7a em b\u00e9. M\u1ed7i ng\u01b0\u1eddi \u0111\u1ec1u mang trong m\u00ecnh m\u1ed9t s\u1ed1 gen li\u00ean quan \u0111\u1ebfn chi\u1ec1u cao, v\u00e0 khi k\u1ebft h\u1ee3p l\u1ea1i trong qu\u00e1 tr\u00ecnh th\u1ee5 tinh, ch\u00fang s\u1ebd quy\u1ebft \u0111\u1ecbnh chi\u1ec1u cao c\u1ee7a em b\u00e9.<\/p>\n

Gen di truy\u1ec1n chi ph\u1ed1i vi\u1ec7c ph\u00e1t tri\u1ec3n chi\u1ec1u cao c\u1ee7a con ng\u01b0\u1eddi th\u00f4ng qua qu\u00e1 tr\u00ecnh truy\u1ec1n gen t\u1eeb b\u1ed1 m\u1eb9 sang con. C\u1ea3 b\u1ed1 v\u00e0 m\u1eb9 \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c quy\u1ebft \u0111\u1ecbnh chi\u1ec1u cao c\u1ee7a em b\u00e9.<\/p>\n

Tuy nhi\u00ean, kh\u00f4ng ch\u1ec9 c\u00f3 gen di truy\u1ec1n m\u00e0 c\u00f2n c\u00f3 nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nh\u01b0 dinh d\u01b0\u1ee1ng, m\u00f4i tr\u01b0\u1eddng s\u1ed1ng, ho\u1ea1t \u0111\u1ed9ng th\u1ec3 ch\u1ea5t c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n chi\u1ec1u cao c\u1ee7a em b\u00e9.<\/p>\n

C\u00e1c nghi\u00ean c\u1ee9u c\u0169ng ch\u1ec9 ra r\u1eb1ng, gen di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn chi\u1ec1u cao c\u1ee7a em b\u00e9. M\u1ed9t s\u1ed1 gen c\u00f3 th\u1ec3 khi\u1ebfn cho em b\u00e9 c\u00f3 chi\u1ec1u cao cao h\u01a1n ho\u1eb7c th\u1ea5p h\u01a1n so v\u1edbi b\u1ed1 m\u1eb9.Trong tr\u01b0\u1eddng h\u1ee3p c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9 \u0111\u1ec1u cao, kh\u1ea3 n\u0103ng em b\u00e9 s\u1ebd c\u00f3 chi\u1ec1u h\u01a1n l\u00e0 r\u1ea5t cao. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9 \u0111\u1ec1u th\u1ea5p, l\u00f9n, t\u1ec9 l\u1ec7 em b\u00e9 c\u00f3 th\u1ec3 th\u1ea5p, l\u00f9n c\u0169ng r\u1ea5t cao.<\/p>\n

Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u00f3 s\u1ef1 ch\u00ednh x\u00e1c ho\u00e0n h\u1ea3o trong vi\u1ec7c d\u1ef1 \u0111o\u00e1n chi\u1ec1u cao c\u1ee7a em b\u00e9 d\u1ef1a tr\u00ean gen di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9.<\/p>\n

A\u0309nh H\u01b0\u01a1\u0309ng T\u01b0\u0300 S\u1ee9c Kh\u1ecfe<\/strong><\/h2>\n

S\u1ee9c kh\u1ecfe v\u00e0 \u0111\u1ed9 d\u1ebbo dai c\u1ee7a m\u1ed9t em b\u00e9 \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n c\u1ee7a tr\u1ebb. Di truy\u1ec1n l\u00e0 qu\u00e1 tr\u00ecnh chuy\u00ea\u0309n giao c\u00e1c \u0111\u1eb7c t\u00ednh di truy\u1ec1n t\u1eeb cha m\u1eb9 sang con c\u00e1i th\u00f4ng qua c\u00e1c gen. C\u00e1c gen n\u00e0y ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd, t\u00e2m l\u00fd v\u00e0 s\u1ee9c kh\u1ecfe c\u1ee7a con ng\u01b0\u1eddi, bao g\u1ed3m c\u1ea3 s\u1ee9c kh\u1ecfe v\u00e0 \u0111\u1ed9 d\u1ebbo dai.<\/p>\n

S\u01b0\u0323 kh\u1ecfe m\u1ea1nh c\u1ee7a em b\u00e9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 th\u00f4ng qua vi\u1ec7c k\u1ebf th\u1eeba c\u00e1c gen li\u00ean quan \u0111\u1ebfn h\u1ec7 th\u1ed1ng mi\u1ec5n d\u1ecbch, kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c b\u1ec7nh t\u1eadt v\u00e0 c\u01a1 ch\u1ebf ph\u1ee5c h\u1ed3i sau khi b\u1ecb t\u1ed5n th\u01b0\u01a1ng.<\/p>\n

Ngo\u00e0i ra, c\u1ea5u tr\u00fac gen c\u1ee7a b\u1ed1 m\u1eb9 c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 v\u00e0 s\u1eed d\u1ee5ng d\u01b0\u1ee1ng ch\u1ea5t t\u1eeb th\u1ee9c \u0103n, gi\u00fap em b\u00e9 ph\u00e1t tri\u1ec3n m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n v\u00e0 kh\u1ecfe m\u1ea1nh t\u1eeb khi c\u00f2n trong b\u1ee5ng m\u1eb9.<\/p>\n

\u0110\u1ed9 d\u1ebbo dai c\u1ee7a em b\u00e9 c\u0169ng ph\u1ea7n n\u00e0o \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 th\u00f4ng qua c\u00e1c gen li\u00ean quan \u0111\u1ebfn c\u1ea5u tr\u00fac x\u01b0\u01a1ng, c\u01a1 b\u1eafp v\u00e0 c\u00e1c m\u00f4 li\u00ean k\u1ebft. C\u00e1c gen n\u00e0y c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh s\u1ef1 linh ho\u1ea1t, s\u1ee9c m\u1ea1nh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a c\u01a1 th\u1ec3. \u0110i\u1ec1u n\u00e0y gi\u00fap em b\u00e9 ph\u00e1t tri\u1ec3n c\u01a1 b\u1eafp v\u00e0 x\u01b0\u01a1ng kh\u1ecfe m\u1ea1nh, gi\u1ea3m nguy c\u01a1 ch\u1ea5n th\u01b0\u01a1ng v\u00e0 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng v\u1eadn \u0111\u1ed9ng t\u1eeb khi c\u00f2n nh\u1ecf.<\/p>\n

A\u0309nh H\u01b0\u01a1\u0309ng T\u01b0\u0300 M\u00e0u M\u1eaft<\/strong><\/h2>\n

M\u00e0u m\u1eaft c\u1ee7a em b\u00e9 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 di truy\u1ec1n t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9. Trong t\u1ebf b\u00e0o quan tr\u1ecdng c\u1ee7a m\u1ed7i ng\u01b0\u1eddi, c\u00f3 m\u1ed9t b\u1ed9 gen quy\u1ebft \u0111\u1ecbnh v\u1ec1 m\u00e0u s\u1eafc c\u1ee7a m\u1eaft. Gen n\u00e0y \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb c\u1ea3 cha l\u1eabn m\u1eb9, v\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a ch\u00fang s\u1ebd quy\u1ebft \u0111\u1ecbnh v\u1ec1 m\u00e0u m\u1eaft c\u1ee7a em b\u00e9.<\/p>\n

\"Y\u1ebfu<\/figcaption><\/figure>\n

M\u1ed7i ng\u01b0\u1eddi \u0111\u1ec1u mang hai b\u1ea3n sao c\u1ee7a gen m\u00e0u m\u1eaft, m\u1ed9t t\u1eeb b\u1ed1 v\u00e0 m\u1ed9t t\u1eeb m\u1eb9. C\u00f3 nhi\u1ec1u lo\u1ea1i gen m\u00e0u m\u1eaft kh\u00e1c nhau, v\u00e0 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa ch\u00fang s\u1ebd t\u1ea1o ra s\u1ef1 \u0111a d\u1ea1ng v\u1ec1 m\u00e0u s\u1eafc m\u1eaft \u1edf con ng\u01b0\u1eddi. C\u00f3 th\u1ec3 c\u00f3 c\u00e1c gen quy \u0111\u1ecbnh v\u1ec1 m\u00e0u n\u1ec1n, m\u00e0u s\u1eafc v\u00e0 \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u1eaft.<\/p>\n

Do \u0111\u00f3, m\u00e0u m\u1eaft c\u1ee7a em b\u00e9 kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o gen m\u00e0 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1ch di truy\u1ec1n c\u1ee7a gen \u0111\u00f3 t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9. M\u1ed9t s\u1ed1 gen c\u00f3 th\u1ec3 dominant h\u01a1n so v\u1edbi gen kh\u00e1c, v\u00e0 \u0111i\u1ec1u n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng v\u1ec1 m\u00e0u m\u1eaft c\u1ee7a em b\u00e9.<\/p>\n

A\u0309nh H\u01b0\u01a1\u0309ng T\u01b0\u0300 M\u00e0u T\u00f3c<\/strong><\/h2>\n

M\u00e0u t\u00f3c c\u1ee7a m\u1ed9t \u0111\u1ee9a tr\u1ebb \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1edfi c\u00e1c gen di truy\u1ec1n t\u1eeb c\u1ea3 b\u1ed1 v\u00e0 m\u1eb9. Gen di truy\u1ec1n l\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb di truy\u1ec1n ch\u1ee9a th\u00f4ng tin gen \u0111\u01b0\u1ee3c chuy\u1ec3n t\u1eeb b\u1ed1 v\u00e0 m\u1eb9 sang con c\u00e1i. M\u00e0u t\u00f3c l\u00e0 m\u1ed9t \u0111\u1eb7c t\u00ednh di truy\u1ec1n ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1edfi nhi\u1ec1u gen kh\u00e1c nhau.<\/p>\n

M\u1ed7i ng\u01b0\u1eddi \u0111\u1ec1u c\u00f3 hai b\u1ea3n sao c\u1ee7a m\u1ed7i gen, m\u1ed9t t\u1eeb b\u1ed1 v\u00e0 m\u1ed9t t\u1eeb m\u1eb9. Gen n\u00e0o s\u1ebd quy\u1ebft \u0111\u1ecbnh m\u00e0u t\u00f3c c\u1ee7a \u0111\u1ee9a tr\u1ebb ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c c\u00e1c gen n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o khi k\u1ebft h\u1ee3p v\u1edbi nhau. M\u00e0u t\u00f3c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1edfi gen domino ho\u1eb7c gen recessive. Khi gen dominant c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u01a1n, m\u00e0u t\u00f3c s\u1ebd theo gen n\u00e0y. Trong khi \u0111\u00f3, n\u1ebfu gen recessive c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u01a1n, m\u00e0u t\u00f3c s\u1ebd theo gen n\u00e0y.<\/p>\n

Do \u0111\u00f3, m\u00e0u t\u00f3c c\u1ee7a em b\u00e9 s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c c\u00e1c gen t\u1eeb b\u1ed1 v\u00e0 m\u1eb9 k\u1ebft h\u1ee3p v\u1edbi nhau nh\u01b0 th\u1ebf n\u00e0o. C\u00e1c gen n\u00e0y c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau, do \u0111\u00f3 m\u00e0u t\u00f3c c\u1ee7a em b\u00e9 c\u00f3 th\u1ec3 kh\u00e1c nhau ho\u00e0n to\u00e0n so v\u1edbi b\u1ed1 ho\u1eb7c m\u1eb9. \u0110i\u1ec1u n\u00e0y gi\u1ea3i th\u00edch t\u1ea1i sao trong m\u1ed9t gia \u0111\u00ecnh c\u00f3 th\u1ec3 c\u00f3 em b\u00e9 c\u00f3 m\u00e0u t\u00f3c kh\u00e1c nhau.<\/p>\n

Khu\u00f4n M\u1eb7t: Kh\u00f4ng Ho\u00e0n To\u00e0n Do Gen Di Truy\u1ec1n Quy\u1ebft \u0110\u1ecbnh<\/strong><\/h2>\n

Nghi\u00ean c\u1ee9u trong l\u0129nh v\u1ef1c gen di truy\u1ec1n \u0111\u00e3 \u0111\u01b0a ra nh\u1eefng ph\u00e1t hi\u1ec7n \u0111\u00e1ng ch\u00fa \u00fd v\u1ec1 s\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 di truy\u1ec1n \u0111\u1ed1i v\u1edbi khu\u00f4n m\u1eb7t con ng\u01b0\u1eddi. Theo nghi\u00ean c\u1ee9u n\u00e0y, khu\u00f4n m\u1eb7t c\u1ee7a m\u1ed7i \u0111\u1ee9a tr\u1ebb \u00edt ch\u1ecbu \u1ea3nh h\u01b0\u1edfng b\u1edfi y\u1ebfu t\u1ed1 di truy\u1ec1n h\u01a1n nh\u1eefng b\u1ed9 ph\u1eadn kh\u00e1c tr\u00ean c\u01a1 th\u1ec3 nh\u01b0 chi\u1ec1u cao, v\u00f3c d\u00e1ng, t\u01b0\u1edbng ng\u01b0\u1eddi, c\u00e2n n\u1eb7ng, chi\u1ec1u d\u00e0i tay v\u00e0 ch\u00e2n. Ngo\u00e0i ra nh\u1eefng \u0111i\u1ec1u nh\u01b0 t\u00ednh c\u00e1ch v\u00e0 c\u00e1c b\u1ec7nh l\u00fd di truy\u1ec1n th\u00ec ch\u1ecbu \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3.<\/p>\n

N\u1ebfu s\u1eafc \u0111\u1eb9p do di truy\u1ec1n t\u1ea1o n\u00ean th\u00ec T\u1ea1i sao cha m\u1eb9 xinh \u0111\u1eb9p l\u1ea1i sinh ra nh\u1eefng \u0111\u1ee9a con x\u1ea5u x\u00ed, cha m\u1eb9 x\u1ea5u x\u00ed l\u1ea1i c\u00f3 th\u1ec3 sinh ra nh\u1eefng \u0111\u1ee9a con xinh \u0111\u1eb9p v\u00e0 c\u00f2n r\u1ea5t\u00a0 nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p kh\u00e1c\u2026<\/p>\n

\"Y\u1ebfu<\/figcaption><\/figure>\n

\u0110\u00e1ng ch\u00fa \u00fd, c\u00f3 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u1ee9a con sinh ra \u0111\u01b0\u1ee3c th\u1eeba h\u01b0\u1edfng kho\u1ea3ng 70 \u0111\u1ebfn – 90% t\u1eeb khu\u00f4n m\u1eb7t c\u1ee7a ng\u01b0\u1eddi cha ho\u1eb7c c\u1ee7a ng\u01b0\u1eddi m\u1eb9, trong khi c\u00f3 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p kh\u00e1c \u0111\u1ee9a con sinh ra g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f3 ph\u1ea7n tr\u0103m n\u00e0o \u0111\u01b0\u1ee3c th\u1eeba h\u01b0\u1edfng t\u1eeb khu\u00f4n m\u1eb7t c\u1ee7a ng\u01b0\u1eddi cha ho\u1eb7c c\u1ee7a ng\u01b0\u1eddi m\u1eb9. V\u1ea5n \u0111\u1ec1 n\u00e0y cho th\u1ea5y r\u1eb1ng s\u1ef1 \u0111a d\u1ea1ng trong di truy\u1ec1n khu\u00f4n m\u1eb7t l\u00e0 kh\u00f4ng th\u1ec3 \u0111o\u00e1n tr\u01b0\u1edbc \u0111\u01b0\u1ee3c ch\u1ec9 t\u1eeb gen di truy\u1ec1n<\/p>\n

\u0110i\u1ec1u n\u00e0y \u0111\u00e3 m\u1edf ra m\u1ed9t quan \u0111i\u00ea\u0309m m\u1edbi v\u1ec1 qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh khu\u00f4n m\u1eb7t con ng\u01b0\u1eddi, t\u1eeb \u0111\u00f3 ph\u1ea3n \u00e1nh s\u1ef1 \u0111a d\u1ea1ng v\u00e0 ph\u1ee9c t\u1ea1p c\u1ee7a y\u1ebfu t\u1ed1 \u0111\u1ec3 t\u1ea1o n\u00ean khu\u00f4n m\u1eb7t c\u1ee7a m\u1ed9t \u0111\u1ee9a tr\u1ebb.<\/p>\n

M\u1eb7c d\u00f9 y\u1ebfu t\u1ed1 di truy\u1ec1n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m v\u1ec1 h\u00ecnh d\u00e1ng v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a khu\u00f4n m\u1eb7t, nh\u01b0ng kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn r\u1eb1ng m\u00f4i tr\u01b0\u1eddng s\u1ed1ng, dinh d\u01b0\u1ee1ng, s\u1ee9c kho\u1ebb t\u00e2m l\u00fd c\u1ee7a ng\u01b0\u1eddi m\u1eb9, v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ngo\u1ea1i c\u1ea3nh c\u0169ng c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n

Ngo\u00e0i Ra C\u00e1c B\u1ec7nh L\u00fd Cu\u0303ng Di Truy\u1ec1n T\u1eeb B\u1ed1 M\u1eb9 Sang Con C\u00e1i<\/strong><\/h2>\n

B\u1ec7nh l\u00fd c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb cha m\u1eb9 sang con ca\u0301i v\u00e0 \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a tr\u1ebb. Y\u1ebfu t\u1ed1 di truy\u1ec1n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn b\u1ec7nh tim m\u1ea1ch, ti\u1ec3u \u0111\u01b0\u1eddng, ung th\u01b0, vi\u00eam xoang, ti\u1ec3u \u0111\u01b0\u1eddng v\u00e0 hen suy\u1ec5n.<\/p>\n

\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 n\u1ebfu m\u1ed9t ng\u01b0\u1eddi c\u00f3 nguy c\u01a1 cao m\u1eafc c\u00e1c b\u1ec7nh l\u00fd n\u00e0y do di truy\u1ec1n, th\u00ec con c\u00e1i c\u1ee7a h\u1ecd c\u0169ng c\u00f3 nguy c\u01a1 cao h\u01a1n. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7t ra m\u1ed9t v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng trong vi\u00ea\u0323c qu\u1ea3n l\u00fd s\u1ee9c kh\u1ecfe gia \u0111\u00ecnh v\u00e0 ph\u00f2ng ng\u1eeba b\u1ec7nh t\u1eadt.<\/p>\n

\u0110\u1ec3 c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00f2ng ng\u1eeba v\u00e0 \u0111i\u1ec1u tr\u1ecb hi\u1ec7u qu\u1ea3, quan tr\u1ecdng l\u00e0 ph\u1ea3i hi\u1ec3u \u0111\u01b0\u1ee3c vai tr\u00f2 c\u1ee7a y\u1ebfu t\u1ed1 di truy\u1ec1n trong c\u00e1c b\u1ec7nh l\u00fd. N\u1ebfu ng\u01b0\u1eddi cha ho\u1eb7c ng\u01b0\u1eddi m\u1eb9 m\u1eafc c\u00e1c b\u1ec7nh l\u00fd di truy\u1ec1n, vi\u1ec7c ki\u1ec3m tra s\u1ee9c kh\u1ecfe \u0111\u1ecbnh k\u1ef3 v\u00e0 thay \u0111\u1ed5i l\u1ed1i s\u1ed1ng l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nguy c\u01a1 cho con c\u00e1i.<\/p>\n

Vi\u0301 du\u0323 b\u1ec7nh tim m\u1ea1ch, ti\u1ec3u \u0111\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 sang con c\u00e1i. N\u1ebfu m\u1ed9t ng\u01b0\u1eddi c\u00f3 ng\u01b0\u1eddi th\u00e2n trong gia \u0111\u00ecnh m\u1eafc b\u1ec7nh, h\u1ecd c\u00f3 nguy c\u01a1 cao h\u01a1n m\u1eafc ph\u1ea3i b\u1ec7nh n\u00e0y so v\u1edbi nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng c\u00f3 ng\u01b0\u01a1\u0300i t\u00e2n trong gia \u0111i\u0300nh m\u0103\u0301c b\u00ea\u0323nh.<\/p>\n

Ngo\u00e0i ra, ung th\u01b0,Vi\u00eam xoang v\u00e0 hen suy\u1ec5n c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb b\u1ed1 m\u1eb9 sang con c\u00e1i. N\u1ebfu m\u1ed9t ng\u01b0\u1eddi c\u00f3 ng\u01b0\u1eddi th\u00e2n trong gia \u0111\u00ecnh m\u1eafc b\u1ec7nh, h\u1ecd c\u0169ng c\u00f3 nguy c\u01a1 cao h\u01a1n m\u1eafc ph\u1ea3i b\u1ec7nh n\u00e0y.<\/p>\n

D\u00f9 khoa h\u1ecdc ch\u01b0a th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh ho\u00e0n to\u00e0n v\u1ec1 vai tr\u00f2 c\u1ee7a gen di truy\u1ec1n trong vi\u1ec7c h\u00ecnh th\u00e0nh khu\u00f4n m\u1eb7t, vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1ee5 th\u1ec3 v\u00e0 chu\u1ea9n b\u1ecb t\u1ed1t v\u1eabn l\u00e0 c\u00e1ch \u0111\u1ec3 \u00e1p d\u1ee5ng trong vi\u1ec7c sinh con \u0111\u1eb9p.<\/p>\n

T\u00f3m l\u1ea1i, khu\u00f4n m\u1eb7t c\u1ee7a m\u1ed9t \u0111\u1ee9a tr\u1ebb l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a s\u1ef1 k\u1ebft h\u1ee3p ph\u1ee9c t\u1ea1p gi\u1eefa y\u1ebfu t\u1ed1 trong \u0111\u00f3\u00a0 m\u00f4i tr\u01b0\u1eddng c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng\u00a0 y\u1ebfu t\u1ed1 kh\u00e1c t\u1ea1o n\u00ean khu\u00f4n m\u1eb7t c\u1ee7a em b\u00e9 . Vi\u1ec7c hi\u1ec3u bi\u1ebft n\u00e0y m\u1edf ra c\u00e1nh c\u1eeda \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng h\u01a1n trong vi\u1ec7c ti\u0300m ra ph\u01b0\u01a1ng pha\u0301p \u0111\u00ea\u0309 con y\u00eau cu\u0309a ba\u0323n co\u0301 m\u00f4\u0323t khu\u00f4n m\u0103\u0323t hoa\u0300n ha\u0309o.<\/p>\n

H\u00e3y b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh c\u1ee7a b\u1ea1n ngay h\u00f4m nay v\u00e0 kh\u00e1m ph\u00e1 ph\u01b0\u01a1ng pha\u0301p c\u00e1ch \u0111\u1ec3 t\u1ea1o ra m\u1ed9t \u0111\u1ee9a tr\u1ebb tuy\u1ec7t v\u1eddi, kh\u00f4ng ch\u1ec9 \u0111\u1eb9p m\u00e0 c\u00f2n kh\u1ecfe m\u1ea1nh. Chu\u0301ng t\u00f4i se\u0303 lu\u00f4n \u0111\u00f4\u0300ng ha\u0300nh cu\u0300ng ba\u0323n trong su\u00f4\u0301t qua\u0301 tri\u0300nh na\u0300y!<\/p>\n

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