{"id":6834,"date":"2023-04-04T14:54:17","date_gmt":"2023-04-04T07:54:17","guid":{"rendered":"https:\/\/apanano.com\/vi\/?p=6834"},"modified":"2023-04-08T11:16:54","modified_gmt":"2023-04-08T04:16:54","slug":"chien-luoc-dinh-duong-nham-den-giam-stress-nhiet","status":"publish","type":"post","link":"https:\/\/www.apanano.com\/vi\/news\/chien-luoc-dinh-duong-nham-den-giam-stress-nhiet\/","title":{"rendered":"Chi\u1ebfn l\u01b0\u1ee3c dinh d\u01b0\u1ee1ng nh\u1eafm \u0111\u1ebfn gi\u1ea3m Stress nhi\u1ec7t"},"content":{"rendered":"

Gia c\u1ea7m cho n\u0103ng su\u1ea5t t\u1ed1t h\u01a1n khi c\u00f3 nhi\u1ec7t \u0111\u1ed9 chu\u1ed3ng tr\u1ea1i th\u00edch h\u1ee3p \u1edf ph\u1ea1m vi nh\u1ea5t \u0111\u1ecbnh. Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u0103ng cao h\u01a1n, gia c\u1ea7m c\u00f3 th\u1ec3 b\u1ecb stress nhi\u1ec7t, v\u00ec th\u1ebf s\u1ebd d\u1eabn \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng tr\u1ee9ng \u00edt h\u01a1n ho\u1eb7c ch\u1eadm sinh tr\u01b0\u1edfng.\u00a0Stress nhi\u1ec7t hi\u1ec7n \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng ch\u00ednh g\u00e2y h\u1ea1i \u0111\u1ebfn s\u1ee9c kh\u1ecfe v\u00e0 n\u0103ng su\u1ea5t c\u1ee7a gia c\u1ea7m. T\u00e1c h\u1ea1i c\u1ee7a stress nhi\u1ec7t \u0111\u1ed1i v\u1edbi g\u00e0 th\u1ecbt v\u00e0 g\u00e0 \u0111\u1ebb l\u00e0 t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng ch\u1eadm, gi\u1ea3m s\u1ea3n l\u01b0\u1ee3ng tr\u1ee9ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng th\u1ecbt v\u00e0 tr\u1ee9ng k\u00e9m.<\/strong><\/p>\n

G\u00e1nh n\u1eb7ng n\u00e0y t\u0103ng th\u00eam do s\u1ef1 ch\u1ecdn l\u1ecdc di truy\u1ec1n cho s\u1ef1 sinh tr\u01b0\u1edfng nhanh c\u1ee7a gia c\u1ea7m n\u00ean l\u00e0m t\u0103ng t\u00ednh nh\u1ea1y c\u1ea3m v\u1edbi stress nhi\u1ec7t. Do \u0111\u00f3 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 gi\u1ea3m b\u1edbt t\u00e1c \u0111\u1ed9ng b\u1ea5t l\u1ee3i c\u1ee7a stress nhi\u1ec7t \u0111\u1ed1i v\u1edbi n\u0103ng su\u1ea5t c\u1ee7a gia c\u1ea7m l\u00e0 c\u00f3 v\u1ebb h\u1ee3p l\u00fd v\u00e0 ph\u1ea3i d\u1ef1a v\u00e0o m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p. Chi\u1ebfn l\u01b0\u1ee3c c\u00f3 th\u1ec3 bao g\u1ed3m \u0111i\u1ec1u ki\u1ec7n chu\u1ed3ng tr\u1ea1i, th\u1ef1c h\u00e0nh qu\u1ea3n l\u00fd v\u00e0 chi\u1ebfn l\u01b0\u1ee3c dinh d\u01b0\u1ee1ng. May m\u1eafn l\u00e0 c\u00f3 m\u1ed9t s\u1ed1 chi\u1ebfn l\u01b0\u1ee3c dinh d\u01b0\u1ee1ng cho ng\u01b0\u1eddi ch\u0103n nu\u00f4i c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y \u1edf c\u00e1c ph\u1ea7n d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n

Stress nhi\u1ec7t l\u00e0 g\u00ec?<\/strong><\/p>\n

Nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1ea3n sinh trong c\u01a1 th\u1ec3 l\u00e0 m\u1ed9t k\u1ebft qu\u1ea3 t\u1eeb c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc kh\u00e1c nhau li\u00ean quan \u0111\u1ebfn chuy\u1ec3n h\u00f3a trung gian. C\u01a1 ch\u1ebf c\u00e2n b\u1eb1ng n\u1ed9i m\u00f4i \u0111i\u1ec1u ch\u1ec9nh s\u1ef1 s\u1ea3n sinh nhi\u1ec7t v\u00e0 m\u1ea5t nhi\u1ec7t c\u01a1 th\u1ec3 cho ph\u00e9p duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 t\u01b0\u01a1ng \u0111\u1ed1i \u1ed5n \u0111\u1ecbnh. Kh\u00f4ng c\u1ea7n n\u0103ng l\u01b0\u1ee3ng n\u00e0o \u0111\u01b0\u1ee3c tham v\u00e0o \u0111\u1ec3 l\u00e0m ti\u00eau tan ho\u1eb7c sinh nhi\u1ec7t khi gia c\u1ea7m \u1edf trong khu v\u1ef1c nhi\u1ec7t \u0111\u1ed9 trung t\u00ednh (H\u00ecnh 1).<\/p>\n

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H\u00ecnh 1: S\u1ef1 \u0111i\u1ec1u ch\u00ecnh nhi\u1ec7t \u0111\u1ed9 \u1edf gia c\u1ea7m<\/em><\/p>\n

Tuy nhi\u00ean, gia c\u1ea7m ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng nhi\u1ec7t \u0111\u1ed9 t\u1edbi h\u1ea1n cao h\u01a1n. Tr\u1ea1ng th\u00e1i sinh l\u00fd nh\u01b0 v\u1eady \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 stress nhi\u1ec7t. Khi b\u1ecb stress nhi\u1ec7t, s\u1ef1 tho\u00e1t nhi\u1ec7t t\u0103ng l\u00ean th\u00f4ng qua b\u1ee9c x\u1ea1, \u0111\u1ed1i l\u01b0u, d\u1eabn truy\u1ec1n v\u00e0 bay h\u01a1i. M\u1eb7c d\u00f9 ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn ch\u0103n nu\u00f4i gia c\u1ea7m trong kho\u1ea3ng nhi\u1ec7t \u0111\u1ed9 t\u1eeb 10 \u0111\u1ebfn 27\u00b0C nh\u01b0ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u0103ng su\u1ea5t t\u1ed1i \u0111a th\u00ec ph\u1ea3i nu\u00f4i trong m\u1ed9t ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 h\u1ea1n ch\u1ebf h\u01a1n: kho\u1ea3ng 18-22\u00b0C \u0111\u1ed1i v\u1edbi g\u00e0 th\u1ecbt v\u00e0 19-22\u00b0C \u0111\u1ed1i v\u1edbi g\u00e0 \u0111\u1ebb. C\u00f3 m\u1ed9t s\u1ed1 kh\u00e1c bi\u1ec7t trong t\u00e0i li\u1ec7u li\u00ean quan \u0111\u1ebfn ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng cho ph\u00e9p n\u0103ng su\u1ea5t v\u00e0 s\u1ee9c kh\u1ecfe t\u1ed1i \u01b0u c\u1ee7a gia c\u1ea7m. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch b\u1edfi th\u1ef1c t\u1ebf l\u00e0 nhi\u1ec1u y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh nh\u1ea1y c\u1ea3m c\u1ee7a gia c\u1ea7m v\u1edbi stress nhi\u1ec7t, v\u00ed d\u1ee5: gi\u1ed1ng, \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i, t\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed ho\u1eb7c m\u1eadt \u0111\u1ed9 ch\u0103n th\u1ea3.<\/p>\n

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D\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1eadt \u0111\u1ed9 ch\u0103n th\u1ea3 cao, gia c\u1ea7m kh\u00f3 tho\u00e1t nhi\u1ec7t qua s\u1ef1 d\u1eabn truy\u1ec1n ho\u1eb7c \u0111\u1ed1i l\u01b0u. \u1ea2nh: Ronald Hissink\u00a0<\/em><\/p>\n

H\u1eadu qu\u1ea3 v\u1ec1 h\u00e0nh vi v\u00e0 sinh l\u00fd<\/strong><\/p>\n

D\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1eadt \u0111\u1ed9 ch\u0103n th\u1ea3 cao, gia c\u1ea7m ng\u00e0y c\u00e0ng kh\u00f3 m\u1ea5t nhi\u1ec7t qua s\u1ef1 d\u1eabn truy\u1ec1n ho\u1eb7c \u0111\u1ed1i l\u01b0u. Tuy nhi\u00ean, r\u1ea5t nhi\u1ec1u nhi\u1ec7t c\u00f3 th\u1ec3 tho\u00e1t ra qua s\u1ef1 bay h\u01a1i, t\u1ee9c l\u00e0 s\u1ef1 thay \u0111\u1ed5i c\u1ee7a n\u01b0\u1edbc trong ch\u1ea5t l\u1ecfng \u0111\u1ec3 b\u1ed1c h\u01a1i. Do gia c\u1ea7m kh\u00f4ng c\u00f3 tuy\u1ebfn m\u1ed3 h\u00f4i n\u00ean ph\u1ea3n \u1ee9ng nh\u01b0 v\u1eady kh\u00f4ng x\u1ea3y ra tr\u00ean da c\u1ee7a n\u00f3 m\u00e0 l\u00e0 \u1edf ph\u1ed5i. Do \u0111\u00f3, s\u1ef1 b\u1ed1c h\u01a1i qua \u0111\u01b0\u1eddng th\u1edf l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf tho\u00e1t nhi\u1ec7t ch\u1ee7 y\u1ebfu c\u1ee7a gia c\u1ea7m khi b\u1ecb stress nhi\u1ec7t. Trong c\u00e1c t\u00ecnh hu\u1ed1ng nh\u01b0 v\u1eady, gia c\u1ea7m c\u0169ng h\u1ea1n ch\u1ebf c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u00f3 th\u1ec3 t\u1ea1o th\u00eam nhi\u1ec7t: v\u00ed d\u1ee5: ho\u1ea1t \u0111\u1ed9ng \u0103n (sinh nhi\u1ec7t trong kh\u1ea9u ph\u1ea7n) ho\u1eb7c di chuy\u1ec3n (sinh nhi\u1ec7t do co c\u01a1). L\u01b0\u1ee3ng n\u01b0\u1edbc u\u1ed1ng \u0111\u1ed3ng th\u1eddi t\u0103ng l\u00ean do nh\u1eefng thay \u0111\u1ed5i v\u1ec1 s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh n\u1ed9i ti\u1ebft. T\u00f3m l\u1ea1i, nh\u1eefng con\u00a0g\u00e0 b\u1ecb stress nhi\u1ec7t<\/strong>\u00a0cho th\u1ea5y ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u01b0\u1ee3ng \u0103n v\u00e0o gi\u1ea3m, trong khi t\u1ed1c \u0111\u1ed9 h\u00f4 h\u1ea5p (th\u1edf h\u1ed5n h\u1ec3n) v\u00e0 l\u01b0\u1ee3ng n\u01b0\u1edbc u\u1ed1ng l\u1ea1i t\u0103ng cao h\u01a1n. \u1ede c\u1ea5p \u0111\u1ed9 sinh l\u00fd, stress nhi\u1ec7t d\u1eabn \u0111\u1ebfn m\u1ed9t s\u1ed1 r\u1ed1i lo\u1ea1n v\u1ec1 ch\u1ee9c n\u0103ng nh\u01b0:<\/p>\n

1. Nhi\u1ec5m ki\u1ec1m h\u00f4 h\u1ea5p: t\u0103ng t\u1ed1c \u0111\u1ed9 h\u00f4 h\u1ea5p l\u00e0m t\u0103ng pH m\u00e1u.<\/p>\n

2. Thay \u0111\u1ed5i n\u1ed9i ti\u1ebft t\u1ed1 l\u00e0m suy gi\u1ea3m kh\u1ea3 n\u0103ng mi\u1ec5n d\u1ecbch t\u1ef1 nhi\u00ean v\u00e0 s\u1ef1 sinh tr\u01b0\u1edfng: nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng cao k\u00edch ho\u1ea1t m\u1ed9t s\u1ed1 c\u01a1 ch\u1ebf th\u1ea7n kinh. C\u00f3 s\u1ef1 gia t\u0103ng n\u1ed3ng \u0111\u1ed9 corticosterone trong huy\u1ebft t\u01b0\u01a1ng. Hormone n\u00e0y \u1ee9c ch\u1ebf h\u1ec7 th\u1ed1ng mi\u1ec5n d\u1ecbch t\u1ef1 nhi\u00ean c\u1ee7a gia c\u1ea7m. Ngo\u00e0i ra, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng cao l\u00e0m gi\u1ea3m n\u1ed3ng \u0111\u1ed9 c\u1ee7a hormone tuy\u1ebfn gi\u00e1p triiodothyronine. Nh\u1eefng thay \u0111\u1ed5i nh\u01b0 v\u1eady s\u1ebd b\u1ea5t l\u1ee3i cho vi\u1ec7c ph\u00e1t tri\u1ec3n th\u00eam m\u00f4 n\u1ea1c v\u00e0 s\u1ef1 t\u0103ng tr\u01b0\u1edfng<\/p>\n

3. Gi\u1ea3m t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a th\u00e0nh ru\u1ed9t: stress nhi\u1ec7t \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 l\u00e0m t\u0103ng t\u00ednh th\u1ea5m c\u1ee7a ru\u1ed9t v\u1edbi c\u00e1c m\u1ea7m b\u1ec7nh kh\u00e1c nhau v\u00e0 d\u1eabn \u0111\u1ebfn vi\u00eam. H\u1ed9i ch\u1ee9ng ru\u1ed9t b\u1ecb r\u00f2 r\u1ec9 n\u00e0y \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch do stress th\u1ea9m th\u1ea5u \u2013 Stress nhi\u1ec7t g\u00e2y ra m\u1ea5t n\u01b0\u1edbc trong c\u01a1 th\u1ec3 v\u00e0 do \u0111\u00f3, t\u1ea1o \u00e1p l\u1ef1c th\u1ea9m th\u1ea5u. T\u00ednh to\u00e0n v\u1eb9n c\u1ee7a ru\u1ed9t b\u1ecb gi\u1ea3m do h\u1eadu qu\u1ea3 c\u1ee7a stress th\u1ea9m th\u1ea5u v\u00e0 stress oxy h\u00f3a \u2013 Nhi\u1ec7t \u0111\u1ed9 cao l\u00e0m k\u00edch th\u00edch s\u1ea3n xu\u1ea5t c\u00e1c g\u1ed1c t\u1ef1 do, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c lo\u1ea1i oxy ph\u1ea3n \u1ee9ng (ROS). H\u00e0m l\u01b0\u1ee3ng cao c\u1ee7a ROS c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c ph\u00e2n t\u1eed sinh h\u1ecdc nh\u01b0 DNA, protein, lipid ho\u1eb7c carbohydrate. H\u1eadu qu\u1ea3 c\u1ee7a stress nhi\u1ec7t n\u00f3i chung l\u00e0 gi\u1ea3m n\u0103ng su\u1ea5t, gi\u1ea3m hi\u1ec7u qu\u1ea3 th\u1ee9c \u0103n, t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng ho\u1eb7c s\u1ea3n xu\u1ea5t tr\u1ee9ng.<\/p>\n

Chi\u1ebfn l\u01b0\u1ee3c dinh d\u01b0\u1ee1ng<\/strong><\/p>\n

C\u00e1c gi\u1ea3i ph\u00e1p dinh d\u01b0\u1ee1ng c\u00f3 th\u1ec3 gi\u00fap gia c\u1ea7m \u0111\u1ed1i ph\u00f3 v\u1edbi stress nhi\u1ec7t. Chi\u1ebfn l\u01b0\u1ee3c n\u00e0y nh\u1eafm \u0111\u00ean hai m\u1ee5c ti\u00eau. \u0110\u1ea7u ti\u00ean, \u0111\u1ec3 gi\u1ea3m sinh nhi\u1ec7t do kh\u1ea9u ph\u1ea7n b\u1eb1ng c\u00e1ch ch\u1ecdn c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng c\u00f3 m\u1ee9c t\u0103ng nhi\u1ec7t th\u1ea5p. Th\u1ee9 hai, \u0111\u1ec3 cung c\u1ea5p cho gia c\u1ea7m c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng c\u00f3 ho\u1ea1t t\u00ednh sinh h\u1ecdc c\u1ee5 th\u1ec3 gi\u00fap \u0111i\u1ec1u ch\u1ec9nh c\u00e1c r\u1ed1i lo\u1ea1n ch\u1ee9c n\u0103ng sinh l\u00fd li\u00ean quan \u0111\u1ebfn stress nhi\u1ec7t (v\u00ed d\u1ee5: stress oxy h\u00f3a ho\u1eb7c r\u00f2 r\u1ec9 ru\u1ed9t).<\/p>\n

Ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng<\/strong><\/p>\n

Nhu c\u1ea7u n\u0103ng l\u01b0\u1ee3ng duy tr\u00ec t\u0103ng khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u0103ng l\u00ean tr\u00ean 28\u00b0C v\u00ec c\u1ea7n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n cho th\u1edf d\u1ed1c. \u0110\u1ed3ng th\u1eddi l\u01b0\u1ee3ng \u0103n v\u00e0o gi\u1ea3m. T\u0103ng m\u1ee9c ch\u1ea5t b\u00e9o trong kh\u1ea9u ph\u1ea7n v\u1edbi chi ph\u00ed carbohydrate c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m sinh nhi\u1ec7t trong kh\u1ea9u ph\u1ea7n khi t\u0103ng m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 b\u00f9 cho l\u01b0\u1ee3ng \u0103n v\u00e0o th\u1ea5p khi b\u1ecb stress nhi\u1ec7t.<\/p>\n

H\u00e0m l\u01b0\u1ee3ng protein th\u00f4<\/strong><\/p>\n

Protein th\u00f4 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 t\u0103ng nhi\u1ec7t cao. Th\u00e0nh ph\u1ea7n axit amin m\u1ea5t c\u00e2n b\u1eb1ng l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam s\u1ef1 gia t\u0103ng nhi\u1ec7t g\u00e2y ra b\u1edfi ti\u00eau th\u1ee5 protein do chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c gi\u1eef nit\u01a1 k\u00e9m v\u00e0 b\u00e0i ti\u1ebft nit\u01a1. Do \u0111\u00f3, gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng protein th\u00f4 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng axit amin trong th\u1ee9c \u0103n c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c h\u1ee3p l\u00fd \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi stress nhi\u1ec7t. Tuy nhi\u00ean chi\u1ebfn l\u01b0\u1ee3c nh\u01b0 v\u1eady \u1ea3nh h\u01b0\u1edfng kh\u00f4ng nh\u1ea5t qu\u00e1n \u0111\u1ebfn n\u0103ng su\u1ea5t t\u0103ng tr\u01b0\u1edfng c\u1ee7a gia c\u1ea7m theo c\u00e1c t\u00e0i li\u1ec7u khoa h\u1ecdc.<\/p>\n

T\u0103ng s\u1ef1 c\u00e2n b\u1eb1ng \u0111i\u1ec7n gi\u1ea3i trong kh\u1ea9u ph\u1ea7n \u0103n<\/strong><\/p>\n

Ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i b\u1ecb m\u1ea5t do s\u1ef1 th\u1edf g\u1ea5p v\u00e0 b\u00e0i ti\u1ebft qua n\u01b0\u1edbc ti\u1ec3u. S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng trong ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ch\u1ea5t c\u1ee7a gia c\u1ea7m. C\u00f3 th\u1ec3 cung c\u1ea5p th\u00eam ch\u1ea5t \u0111i\u1ec7n gi\u1ea3i, ch\u1eb3ng h\u1ea1n nh\u01b0 natri v\u00e0 kali, \u0111\u1ec3 kh\u00f4i ph\u1ee5c DEB c\u1ee7a gia c\u1ea7m.<\/p>\n

Cho \u0103n c\u00e1c d\u01b0\u1ee1ng ch\u1ea5t c\u00f3 ho\u1ea1t t\u00ednh sinh h\u1ecdc \u0111\u1eb7c hi\u1ec7u<\/strong><\/p>\n

Betaine l\u00e0 m\u1ed9t d\u1eabn xu\u1ea5t trimethyl c\u1ee7a glycine c\u00f3 \u0111\u1eb7c t\u00ednh c\u1ee7a zwitterion v\u00e0 methyl. Do \u0111\u00f3, n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1ea5t ch\u1ed1ng th\u1ea9m th\u1ea5u. Betaine gi\u00fap c\u00e1c t\u1ebf b\u00e0o duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a n\u01b0\u1edbc qua m\u00e0ng. Betaine t\u00edch l\u0169y trong c\u00e1c t\u1ebf b\u00e0o ti\u1ebfp x\u00fac v\u1edbi stress th\u1ea9m th\u1ea5u, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ebf b\u00e0o ru\u1ed9t. Ch\u1ea5t ch\u1ed1ng oxy h\u00f3a sinh h\u1ecdc ph\u1ea3n \u1ee9ng v\u1edbi ROS \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh c\u00e1c ph\u00e2n t\u1eed \u00edt m\u1ea1nh h\u01a1n. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba ho\u1eb7c tr\u00ec ho\u00e3n c\u00e1c t\u00e1c \u0111\u1ed9ng b\u1ea5t l\u1ee3i c\u1ee7a ROS. Vi\u1ec7c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p c\u00e1c ch\u1ea5t ch\u1ed1ng oxy h\u00f3a lipophilic v\u00e0 hydrophilic gi\u00fap t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c n\u00e0y.<\/p>\n

Th\u1eed nghi\u1ec7m v\u1edbi betaine v\u00e0 ch\u1ea5t ch\u1ed1ng oxy h\u00f3a<\/strong><\/p>\n

Betaine v\u00e0 ch\u1ea5t ch\u1ed1ng oxy h\u00f3a l\u00e0 ch\u1ea5t dinh d\u01b0\u1ee1ng quan tr\u1ecdng trong \u0111i\u1ec1u ki\u1ec7n stress nhi\u1ec7t. C\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng nh\u01b0 v\u1eady c\u00f3 s\u1eb5n nh\u01b0 l\u00e0 m\u1ed9t h\u1ed7n h\u1ee3p b\u1ecdc ch\u1ea5t b\u00e9o (t\u00ean s\u1ea3n ph\u1ea9m beTaHit). Ma tr\u1eadn ch\u1ea5t b\u00e9o \u0111ang b\u1ea3o v\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n theo th\u1eddi gian \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 t\u1ed1i \u0111a. Kh\u1ea9u ph\u1ea7n chi\u1ebfn l\u01b0\u1ee3c nh\u01b0 v\u1eady \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m. M\u1ed9t th\u1eed nghi\u1ec7m \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh t\u1ea1i Trung t\u00e2m nghi\u00ean c\u1ee9u MiXscience (MRC).<\/p>\n

Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u01b0 m\u1ed9t th\u1eed nghi\u1ec7m kh\u1ed1i ho\u00e0n ch\u1ec9nh ng\u1eabu nhi\u00ean v\u1edbi 3 nh\u00f3m:<\/p>\n

CTR (kh\u00f4ng b\u1ed5 sung kh\u1ea9u ph\u1ea7n),<\/p>\n

B1 (1000 g \/ T betaine HCl) v\u00e0<\/p>\n

B2 (750 g \/ T BeTaHit) trong 16 kh\u1ed1i.<\/p>\n

G\u00e0 th\u1ecbt Ross 308 (n = 192) \u0111\u01b0\u1ee3c nu\u00f4i trong \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n t\u1eeb 1 \u0111\u1ebfn 20 ng\u00e0y. Nhi\u1ec7t \u0111\u1ed9 cao \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u1eeb ng\u00e0y 21 \u0111\u1ebfn ng\u00e0y 35 (28\u02daC trong 3 gi\u1edd; 30\u02daC trong b\u1ed1n gi\u1edd; 28\u02daC trong 3 gi\u1edd; 24\u02daC trong 12 gi\u1edd). Nh\u1eefng con g\u00e0 \u0111\u01b0\u1ee3c nu\u00f4i trong B2 c\u00f3 FCR th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3 v\u00e0 n\u0103ng su\u1ea5t th\u1ecbt \u1ee9c cao h\u01a1n so v\u1edbi c\u00e1c con g\u00e0 \u1edf l\u00f4 CTR (H\u00ecnh 2).<\/p>\n

\"\"<\/p>\n

H\u00ecnh 2<\/strong>\u00a0\u2013 Hi\u1ec7u qu\u1ea3 c\u1ee7a vi\u1ec7c b\u1ed5 sung v\u00e0o kh\u1ea9u ph\u1ea7n (CTR = kh\u00f4ng b\u1ed5 sung; B1: 1000 g \/ T betaine HCl; B2: 750 g \/ T beTaHit) \u0111\u1ed1i v\u1edbi n\u0103ng su\u1ea5t t\u0103ng tr\u01b0\u1edfng c\u1ee7a g\u00e0 th\u1ecbt \u1edf 35 ng\u00e0y tu\u1ed5i.<\/em><\/p>\n

So v\u1edbi CTR, chi ph\u00ed s\u1ea3n xu\u1ea5t th\u1ecbt th\u0103n \u0111\u00e3 gi\u1ea3m g\u1ea7n 2% khi cho \u0103n B1 v\u00e0 6% khi cho \u0103n B2. Trong th\u1eed nghi\u1ec7m n\u00e0y, \u0111\u1ed9 nh\u1ea1y v\u1edbi stress th\u1ea9m th\u1ea5u \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng \u0111i\u1ec3m s\u1ed1 tan huy\u1ebft. C\u00e1c t\u1ebf b\u00e0o h\u1ed3ng c\u1ea7u \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o c\u00e1c dung d\u1ecbch nh\u01b0\u1ee3c tr\u01b0\u01a1ng, t\u1ea1o ra m\u1ed9t d\u00f2ng n\u01b0\u1edbc v\u00e0o c\u00e1c t\u1ebf b\u00e0o. Ng\u01b0\u1ee1ng v\u1ee1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ec9 s\u1ed1 v\u1ec1 kh\u1ea3 n\u0103ng c\u1ee7a c\u00e1c t\u1ebf b\u00e0o \u0111\u1ec3 ch\u1ed1ng l\u1ea1i stress th\u1ea9m th\u1ea5u. N\u1ed3ng \u0111\u1ed9 t\u1ebf b\u00e0o b\u1ecb v\u1ee1 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o trong H\u00ecnh 3. Nh\u1eefng con g\u00e0 \u0111\u01b0\u1ee3c cho \u0103n beTaHit (B2) c\u00f3 \u0111i\u1ec3m tan m\u00e1u th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi \u0111\u1ed1i ch\u1ee9ng \u0111\u01b0\u1ee3c cho \u0103n CTR, do \u0111\u00f3 cho th\u1ea5y kh\u1ea3 n\u0103ng ch\u1ed1ng stress th\u1ea9m th\u1ea5u \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p>\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/strong><\/p>\n

T\u00f3m l\u1ea1i, c\u00e1c chi\u1ebfn l\u01b0\u1ee3c dinh d\u01b0\u1ee1ng kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh to\u00e0n di\u1ec7n nh\u1eb1m \u0111i\u1ec1u ch\u1ec9nh c\u00e1c t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c c\u1ee7a stress nhi\u1ec7t \u0111\u1ed1i v\u1edbi n\u0103ng su\u1ea5t t\u0103ng tr\u01b0\u1edfng c\u1ee7a gia c\u1ea7m. C\u00e1c chi\u1ebfn l\u01b0\u1ee3c dinh d\u01b0\u1ee1ng nh\u01b0 v\u1eady n\u00ean \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi th\u1ef1c h\u00e0nh qu\u1ea3n l\u00fd v\u00e0 chu\u1ed3ng nu\u00f4i \u0111\u1ea7y \u0111\u1ee7. Nh\u1eefng thay \u0111\u1ed5i trong th\u00e0nh ph\u1ea7n dinh d\u01b0\u1ee1ng \u0111a l\u01b0\u1ee3ng v\u00e0 s\u1eed d\u1ee5ng b\u1ed5 sung c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng c\u00f3 ho\u1ea1t t\u00ednh sinh h\u1ecdc \u0111\u1eb7c hi\u1ec7u c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m b\u1edbt m\u1ed9t ph\u1ea7n t\u00e1c \u0111\u1ed9ng b\u1ea5t l\u1ee3i c\u1ee7a stress nhi\u1ec7t \u0111\u1ed1i v\u1edbi n\u0103ng su\u1ea5t t\u0103ng tr\u01b0\u1edfng. C\u00e1c ngu\u1ed3n stress m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t c\u00e1c ph\u1ea3n \u1ee9ng stress gi\u1ed1ng h\u1ec7t nhau \u1edf gia c\u1ea7m. Do \u0111\u00f3, b\u1ed5 sung ch\u1ea5t dinh d\u01b0\u1ee1ng c\u00f3 ho\u1ea1t t\u00ednh sinh h\u1ecdc \u0111\u1eb7c hi\u1ec7u c\u00f3 th\u1ec3 c\u00f3 t\u00e1c \u0111\u1ed9ng t\u1ed1t trong tr\u01b0\u1eddng h\u1ee3p stress r\u00f5 r\u00e0ng h\u01a1n.<\/p>\n

 <\/p>\n

Ngu\u1ed3n tin: Acare Vietnam<\/p>\n","protected":false},"excerpt":{"rendered":"

Gia c\u1ea7m cho n\u0103ng su\u1ea5t t\u1ed1t h\u01a1n khi c\u00f3 nhi\u1ec7t \u0111\u1ed9 chu\u1ed3ng tr\u1ea1i th\u00edch h\u1ee3p \u1edf ph\u1ea1m vi nh\u1ea5t \u0111\u1ecbnh. Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u0103ng cao h\u01a1n, gia c\u1ea7m c\u00f3 th\u1ec3 b\u1ecb stress nhi\u1ec7t, v\u00ec th\u1ebf s\u1ebd d\u1eabn \u0111\u1ebfn … \u0110\u1ecdc th\u00eam<\/a><\/p>\n","protected":false},"author":722,"featured_media":6835,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[27,89],"tags":[148,803,199,74,163,704,802,138,125,143],"class_list":["post-6834","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-industry-news","tag-catalog-thuoc-thu-y","tag-chien-luoc-dinh-duong","tag-dinh-duong","tag-gia-cam","tag-gia-suc","tag-san-pham-thu-y","tag-stress-nhiet","tag-thu-y","tag-thuoc-thu-y","tag-thuoc-thuy-san"],"_links":{"self":[{"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/posts\/6834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/users\/722"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/comments?post=6834"}],"version-history":[{"count":4,"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/posts\/6834\/revisions"}],"predecessor-version":[{"id":6847,"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/posts\/6834\/revisions\/6847"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/media\/6835"}],"wp:attachment":[{"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/media?parent=6834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/categories?post=6834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.apanano.com\/vi\/wp-json\/wp\/v2\/tags?post=6834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}