{"id":701659,"date":"2024-08-24T05:46:34","date_gmt":"2024-08-24T04:46:34","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=701659"},"modified":"2024-08-24T05:46:34","modified_gmt":"2024-08-24T04:46:34","slug":"may-chu-ky-nhiet-cac-loai-pcr-ung-dung-trong-phong-thi-nghiem","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/may-chu-ky-nhiet-cac-loai-pcr-ung-dung-trong-phong-thi-nghiem\/","title":{"rendered":"M\u00e1y Chu K\u1ef3 Nhi\u1ec7t | C\u00e1c Lo\u1ea1i PCR &#038; \u1ee8ng D\u1ee5ng Trong Ph\u00f2ng Th\u00ed Nghi\u1ec7m"},"content":{"rendered":"<p class=\"sidekick\">M\u00e1y chu k\u1ef3 nhi\u1ec7t PCR trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t: \u0110\u1ecbnh ngh\u0129a, c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/may_chu_ky_nhiet_cac_loai_pcr_ung_dung_trong_phong_thi_nghiem.png\" alt=\"M\u00e1y Chu K\u1ef3 Nhi\u1ec7t | C\u00e1c Lo\u1ea1i PCR &#038; \u1ee8ng D\u1ee5ng Trong Ph\u00f2ng Th\u00ed Nghi\u1ec7m\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>M\u00e1y Chu K\u1ef3 Nhi\u1ec7t | C\u00e1c Lo\u1ea1i PCR &#038; \u1ee8ng D\u1ee5ng Trong Ph\u00f2ng Th\u00ed Nghi\u1ec7m<\/h2>\n<p>M\u00e1y chu k\u1ef3 nhi\u1ec7t, hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u00e1y PCR (Polymerase Chain Reaction), l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong nghi\u00ean c\u1ee9u sinh h\u1ecdc ph\u00e2n t\u1eed. Thi\u1ebft b\u1ecb n\u00e0y cho ph\u00e9p nh\u00e2n b\u1ea3n m\u1ed9t \u0111o\u1ea1n DNA c\u1ee5 th\u1ec3 qua c\u00e1c chu k\u1ef3 nhi\u1ec7t kh\u00e1c nhau, gi\u00fap t\u0103ng s\u1ed1 l\u01b0\u1ee3ng c\u00e1c \u0111o\u1ea1n DNA c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 nghi\u00ean c\u1ee9u sau n\u00e0y.<\/p>\n<h2>C\u00e1c Lo\u1ea1i M\u00e1y PCR<\/h2>\n<ul>\n<li><b>M\u00e1y PCR truy\u1ec1n th\u1ed1ng:<\/b> \u0110\u00e2y l\u00e0 lo\u1ea1i m\u00e1y c\u01a1 b\u1ea3n nh\u1ea5t, th\u1ef1c hi\u1ec7n PCR b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 ph\u1ea3n \u1ee9ng qua c\u00e1c b\u01b0\u1edbc: bi\u1ebfn t\u00ednh (denaturation), g\u1eafn m\u1ed3i (annealing), v\u00e0 m\u1edf r\u1ed9ng (extension).<\/li>\n<li><b>M\u00e1y PCR th\u1eddi gian th\u1ef1c (qPCR):<\/b> Lo\u1ea1i m\u00e1y n\u00e0y kh\u00f4ng ch\u1ec9 nh\u00e2n b\u1ea3n DNA m\u00e0 c\u00f2n \u0111o l\u01b0\u1ee3ng DNA \u0111\u01b0\u1ee3c nh\u00e2n trong m\u1ed7i chu k\u1ef3, cho ph\u00e9p ph\u00e2n t\u00edch \u0111\u1ed9ng h\u1ecdc c\u1ee7a qu\u00e1 tr\u00ecnh PCR.<\/li>\n<li><b>M\u00e1y PCR k\u1ef9 thu\u1eadt s\u1ed1 (dPCR):<\/b> M\u00e1y n\u00e0y ph\u00e2n chia m\u1eabu DNA th\u00e0nh h\u00e0ng ng\u00e0n ho\u1eb7c h\u00e0ng tri\u1ec7u gi\u1ecdt nh\u1ecf, m\u1ed7i gi\u1ecdt ch\u1ee9a m\u1ed9t ph\u00e2n t\u1eed DNA, gi\u00fap t\u0103ng \u0111\u1ed9 ph\u00e2n gi\u1ea3i v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 PCR.<\/li>\n<\/ul>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng c\u1ee7a PCR<\/h2>\n<p>Quy tr\u00ecnh PCR th\u01b0\u1eddng bao g\u1ed3m ba b\u01b0\u1edbc ch\u00ednh:<\/p>\n<ol>\n<li><b>Bi\u1ebfn t\u00ednh (Denaturation):<\/b> DNA m\u1eabu \u0111\u01b0\u1ee3c \u0111un n\u00f3ng \u0111\u1ebfn kho\u1ea3ng 94-98\u00b0C \u0111\u1ec3 t\u00e1ch \u0111\u00f4i c\u00e1c s\u1ee3i DNA.<\/li>\n<li><b>G\u1eafn m\u1ed3i (Annealing):<\/b> Nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng c\u00f2n 50-65\u00b0C, cho ph\u00e9p c\u00e1c \u0111o\u1ea1n m\u1ed3i ng\u1eafn (primers) g\u1eafn v\u00e0o c\u00e1c \u0111o\u1ea1n DNA \u0111\u00edch.<\/li>\n<li><b>M\u1edf r\u1ed9ng (Extension):<\/b> DNA polymerase m\u1edf r\u1ed9ng \u0111o\u1ea1n m\u1ed3i b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c nucleotide v\u00e0o, t\u1ea1o ra m\u1ed9t b\u1ea3n sao ho\u00e0n ch\u1ec9nh c\u1ee7a \u0111o\u1ea1n DNA \u0111\u00edch. Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng x\u1ea3y ra \u1edf nhi\u1ec7t \u0111\u1ed9 72\u00b0C.<\/li>\n<\/ol>\n<h2>\u1ee8ng D\u1ee5ng c\u1ee7a PCR trong Ph\u00f2ng Th\u00ed Nghi\u1ec7m<\/h2>\n<p> M\u00e1y PCR \u0111\u00f3ng vai tr\u00f2 c\u1ef1c k\u1ef3 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng nghi\u00ean c\u1ee9u v\u00e0 y t\u1ebf. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ch\u1ee7 y\u1ebfu:<\/p>\n<ul>\n<li><b>Ch\u1ea9n \u0111o\u00e1n b\u1ec7nh:<\/b> PCR \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c t\u00e1c nh\u00e2n g\u00e2y b\u1ec7nh nh\u01b0 vi khu\u1ea9n v\u00e0 virus trong c\u00e1c m\u1eabu b\u1ec7nh ph\u1ea9m, gi\u00fap ch\u1ea9n \u0111o\u00e1n nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c.<\/li>\n<li><b>Ph\u00e2n t\u00edch di truy\u1ec1n:<\/b> PCR gi\u00fap ph\u00e2n t\u00edch c\u00e1c d\u1ea5u v\u1ebft di truy\u1ec1n, h\u1ed7 tr\u1ee3 nghi\u00ean c\u1ee9u v\u1ec1 di truy\u1ec1n h\u1ecdc, x\u00e1c \u0111\u1ecbnh quan h\u1ec7 huy\u1ebft th\u1ed1ng v\u00e0 nghi\u00ean c\u1ee9u c\u00e1c b\u1ec7nh di truy\u1ec1n.<\/li>\n<li><b>Nghi\u00ean c\u1ee9u sinh h\u1ecdc ph\u00e2n t\u1eed:<\/b> PCR l\u00e0 c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 gene, bi\u1ec3u hi\u1ec7n gene v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng sinh h\u1ecdc kh\u00e1c.<\/li>\n<li><b>X\u00e9t nghi\u1ec7m ph\u00e1p y:<\/b> PCR \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch DNA trong c\u00e1c v\u1ee5 \u00e1n ph\u00e1p y, h\u1ed7 tr\u1ee3 x\u00e1c \u0111\u1ecbnh danh t\u00ednh v\u00e0 ch\u1ee9ng c\u1ee9 quan tr\u1ecdng.<\/li>\n<\/ul>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>M\u00e1y chu k\u1ef3 nhi\u1ec7t (PCR) l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng th\u1ec3 thi\u1ebfu trong nghi\u00ean c\u1ee9u sinh h\u1ecdc ph\u00e2n t\u1eed v\u00e0 y h\u1ecdc. V\u1edbi kh\u1ea3 n\u0103ng nh\u00e2n b\u1ea3n v\u00e0 ph\u00e2n t\u00edch DNA ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3, PCR \u0111\u00e3 tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd gi\u00fap c\u00e1c nh\u00e0 khoa h\u1ecdc v\u00e0 b\u00e1c s\u0129 c\u00f3 th\u1ec3 ti\u1ebfn xa h\u01a1n trong vi\u1ec7c nghi\u00ean c\u1ee9u v\u00e0 \u1ee9ng d\u1ee5ng. D\u00f9 b\u1ea1n l\u00e0 m\u1ed9t nh\u00e0 nghi\u00ean c\u1ee9u chuy\u00ean nghi\u1ec7p hay m\u1ed9t sinh vi\u00ean y\u00eau th\u00edch sinh h\u1ecdc, hi\u1ec3u bi\u1ebft v\u1ec1 m\u00e1y PCR v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 ch\u1eafc ch\u1eafn s\u1ebd m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i m\u1edbi trong h\u00e0nh tr\u00ecnh kh\u00e1m ph\u00e1 khoa h\u1ecdc c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u00e1y chu k\u1ef3 nhi\u1ec7t PCR trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t: \u0110\u1ecbnh ngh\u0129a, c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - 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