{"id":46343,"date":"2024-02-08T13:12:07","date_gmt":"2024-02-08T21:12:07","guid":{"rendered":"https:\/\/sweet-pascal.52-27-215-206.plesk.page\/canh-bao-vi-khuan-tot-van-co-the-la-gay-hai\/"},"modified":"2024-02-08T13:12:07","modified_gmt":"2024-02-08T21:12:07","slug":"canh-bao-vi-khuan-tot-van-co-the-la-gay-hai","status":"publish","type":"post","link":"https:\/\/vietvalley.com\/en\/canh-bao-vi-khuan-tot-van-co-the-la-gay-hai\/","title":{"rendered":"C\u1ea3nh b\u00e1o: Vi khu\u1ea9n \u2018t\u1ed1t\u2019 v\u1eabn c\u00f3 th\u1ec3 l\u00e0 g\u00e2y h\u1ea1i"},"content":{"rendered":"<p><span>C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang c\u1ea3nh b\u00e1o r\u1eb1ng ch\u1ea5t b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m th\u00f4ng th\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe \u0111\u01b0\u1eddng ru\u1ed9t.<\/span><\/p>\n<p><span>Nisin th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa nh\u01b0 ph\u00f4 mai, kem ph\u00f4 mai, s\u1eefa chua v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb th\u1ecbt \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi khu\u1ea9n v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a s\u1ea3n ph\u1ea9m. N\u00f3 \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t ch\u1ea5t b\u1ea3o qu\u1ea3n t\u1ef1 nhi\u00ean v\u00e0 kh\u00f4ng g\u00e2y t\u00e1c d\u1ee5ng ph\u1ee5 \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi.<\/span><\/p>\n<p><span>Nisin kh\u00f4ng \u0111\u1ed9c, kh\u00f4ng k\u00edch th\u00edch t\u0103ng tr\u01b0\u1edfng, c\u00f3 ho\u1ea1t t\u00ednh ch\u1ed1ng Clostridiumn\u00ean hi\u1ec7n nay, nisin tr\u1edf th\u00e0nh ch\u1ea5t b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m hi\u1ec7u qu\u1ea3. T\u1eeb nh\u1eefng n\u0103m 1951, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u b\u1eaft \u0111\u1ea7u ki\u1ec3m tra kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng c\u1ee7a nisin trong th\u1ef1c ph\u1ea9m, v\u00e0 ch\u1ee9ng minh vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ee7ng vi khu\u1ea9n lactic sinh nisin l\u00e0m gi\u1ed1ng kh\u1edfi \u0111\u1ed9ng c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n s\u01b0 h\u01b0 h\u1ecfng ph\u00f4-mai, g\u00e2y ra b\u1edfi Clostridium butulium. C\u0169ng trong th\u1eddi gian \u0111\u00f3 nhi\u1ec1u nh\u00e0 nghi\u00ean c\u1ee9u kh\u00e1c \u0111\u00e3 s\u1eed d\u1ee5ng ch\u1ee7ng vi khu\u1ea9n sinh nisin v\u00e0o qu\u00e1 tr\u00ecnh l\u00ean men ph\u00f4-mai \u0111\u1ec3 \u1ee9c ch\u1ebf s\u1ef1 l\u00ean men butyric c\u1ee7a c\u00e1c vi khu\u1ea9n g\u00e2y h\u01b0 h\u1ecfng.<\/span><\/p>\n<p><span>Tuy nhi\u00ean, m\u1eb7c d\u00f9 nh\u1eefng th\u1ee9 n\u00e0y r\u1ea5t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c lo\u1ea1i b\u1ecf c\u00e1c b\u1ec7nh do th\u1ef1c ph\u1ea9m g\u00e2y ra, nh\u01b0ng c\u0169ng l\u00e0m t\u1ed5n h\u1ea1i \u0111\u1ebfn c\u00e1c vi khu\u1ea9n \u201ct\u1ed1t\u201d trong ru\u1ed9t c\u1ee7a con ng\u01b0\u1eddi.<\/span><\/p>\n<p><span>Zhenrun \u201cJerry\u201d Zhang, m\u1ed9t h\u1ecdc gi\u1ea3 l\u00e0m vi\u1ec7c trong ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a Eric Pamer t\u1ea1i <a href=\"https:\/\/www.uchicago.edu\/\" target=\"_blank\" rel=\"noopener\">University of Chicago<\/a>, cho bi\u1ebft trong m\u1ed9t tuy\u00ean b\u1ed1: \u201cV\u1ec1 b\u1ea3n ch\u1ea5t, Nisin l\u00e0 m\u1ed9t lo\u1ea1i kh\u00e1ng sinh \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o th\u1ef1c ph\u1ea9m t\u1eeb r\u1ea5t l\u00e2u, nh\u01b0ng t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 \u0111\u1ebfn nh\u1eefng lo\u1ea1i vi tr\u00f9ng trong \u0111\u01b0\u1eddng ru\u1ed9t nh\u01b0 th\u1ebf n\u00e0o, v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u k\u1ef9 l\u01b0\u1ee1ng.\u201d<\/span><\/p>\n<p><span>Nh\u1eefng vi khu\u1ea9n \u201cl\u00e0nh m\u1ea1nh\u201d n\u00e0y \u2013 \u0111\u01b0\u1ee3c g\u1ecdi chung l\u00e0 h\u1ec7 vi sinh v\u1eadt \u0111\u01b0\u1eddng ru\u1ed9t \u2013 \u0111\u01b0\u1ee3c bi\u1ebft l\u00e0 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong m\u1ecdi th\u1ee9 c\u1ee7a c\u01a1 th\u1ec3, t\u1eeb ti\u00eau h\u00f3a \u0111\u1ebfn kh\u1ea3 n\u0103ng mi\u1ec5n d\u1ecbch v\u00e0 s\u1ee9c kh\u1ecfe t\u00e2m th\u1ea7n, v\u00ec v\u1eady vi\u1ec7c ti\u00eau di\u1ec7t ch\u00fang c\u00f3 th\u1ec3 g\u00e2y ra h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng cho s\u1ee9c kh\u1ecfe t\u1ed5ng th\u1ec3 c\u1ee7a m\u1ed7i ng\u01b0\u1eddi.<\/span><\/p>\n<p>(minh h\u1ecda: Unsplash)<\/p>\n<p><span>Vi\u1ec7c ti\u00eau di\u1ec7t vi khu\u1ea9n t\u1ed1t c\u0169ng t\u1ea1o c\u01a1 h\u1ed9i cho vi khu\u1ea9n \u201cx\u1ea5u\u201d x\u00e2m chi\u1ebfm \u0111\u01b0\u1eddng ru\u1ed9t, v\u00ec ch\u00fang \u00edt c\u00f3 s\u1ef1 c\u1ea1nh tranh v\u1edbi c\u00e1c vi khu\u1ea9n kh\u00e1c.<\/span><\/p>\n<p><span>\u0110i\u1ec1u th\u00fa v\u1ecb l\u00e0 m\u1ed9t s\u1ed1 vi khu\u1ea9n \u0111\u01b0\u1eddng ru\u1ed9t \u201cl\u00e0nh m\u1ea1nh\u201d n\u00e0y c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra c\u00e1c h\u1ee3p ch\u1ea5t lantibiotic, m\u1eb7c d\u00f9 th\u01b0\u1eddng \u1edf m\u1ed9t l\u01b0\u1ee3ng r\u1ea5t nh\u1ecf.<\/span><\/p>\n<p><span>Trong nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed ACS Chemical Biology, Zhang v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p c\u1ee7a m\u00ecnh \u0111\u00e3 ph\u00e2n l\u1eadp c\u00e1c ch\u1ea5t kh\u00e1ng khu\u1ea9n c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb ru\u1ed9t n\u00e0y v\u00e0 ki\u1ec3m tra xem ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c nh\u01b0 th\u1ebf n\u00e0o v\u1edbi c\u00e1c vi tr\u00f9ng g\u00e2y b\u1ec7nh c\u0169ng nh\u01b0 vi khu\u1ea9n c\u00f3 l\u1ee3i trong ru\u1ed9t c\u1ee7a m\u1ed7i ng\u01b0\u1eddi. Nh\u1eefng g\u00ec h\u1ecd ph\u00e1t hi\u1ec7n ra l\u00e0 c\u00e1c vi khu\u1ea9n \u0111\u01b0\u1eddng ru\u1ed9t \u201ct\u1ed1t\u201d c\u0169ng d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng b\u1edfi lantibiotic, gi\u1ed1ng nh\u01b0 c\u00e1c vi khu\u1ea9n \u201cx\u1ea5u\u201d g\u00e2y b\u1ec7nh.<\/span><span><br \/><\/span><span><br \/><\/span><span> Zhang cho bi\u1ebft: \u201cKh\u00e1m ph\u00e1 c\u1ee7a ch\u00fang t\u00f4i l\u00e0 m\u1ed9t trong nh\u1eefng nghi\u00ean c\u1ee9u \u0111\u1ea7u ti\u00ean cho th\u1ea5y c\u1ed9ng sinh trong ru\u1ed9t d\u1ec5 b\u1ecb nhi\u1ec5m lantibiotic v\u00e0 \u0111\u00f4i khi nh\u1ea1y c\u1ea3m h\u01a1n c\u1ea3 m\u1ea7m b\u1ec7nh. V\u1edbi m\u1ee9c \u0111\u1ed9 lantibiotic hi\u1ec7n c\u00f3 trong th\u1ef1c ph\u1ea9m, r\u1ea5t c\u00f3 th\u1ec3 ch\u00fang c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe \u0111\u01b0\u1eddng ru\u1ed9t c\u1ee7a ch\u00fang ta.\u201d<\/span><\/p>\n<p><span>C\u00f4ng tr\u00ecnh n\u00e0y d\u1ef1a tr\u00ean m\u1ed9t th\u00ed nghi\u1ec7m tr\u01b0\u1edbc \u0111\u00e2y v\u1ec1 m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa vi\u1ec7c ti\u00eau th\u1ee5 nisin v\u00e0 nh\u1eefng thay \u0111\u1ed5i trong h\u1ec7 vi sinh v\u1eadt \u0111\u01b0\u1eddng ru\u1ed9t. Trong m\u1ed9t nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean <a href=\"https:\/\/www.nature.com\/srep\/\" target=\"_blank\" rel=\"noopener\">t\u1ea1p ch\u00ed Nature<\/a>, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1eeb University College Cork c\u1ee7a Ireland ph\u00e1t hi\u1ec7n ra r\u1eb1ng ngay c\u1ea3 n\u1ed3ng \u0111\u1ed9 nisin th\u1ea5p c\u0169ng di chuy\u1ec3n \u0111\u01b0\u1ee3c qua \u0111\u01b0\u1eddng ti\u00eau h\u00f3a v\u00e0 l\u00e0m thay \u0111\u1ed5i h\u1ec7 vi sinh v\u1eadt \u0111\u01b0\u1eddng ru\u1ed9t \u1edf ph\u1ea7n ru\u1ed9t gi\u00e0.<\/span><span><br \/><\/span><\/p>\n<p>The post <a href=\"https:\/\/saigonnhonews.com\/doi-song\/suc-khoe\/canh-bao-vi-khuan-tot-van-co-the-la-gay-hai\/\" target=\"_blank\" rel=\"noopener\">C\u1ea3nh b\u00e1o: Vi khu\u1ea9n \u2018t\u1ed1t\u2019 v\u1eabn c\u00f3 th\u1ec3 l\u00e0 g\u00e2y h\u1ea1i<\/a> appeared first on <a href=\"https:\/\/saigonnhonews.com\/\" target=\"_blank\" rel=\"noopener\">Saigon Nh\u1ecf<\/a>.<\/p>\n<p>\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang c\u1ea3nh b\u00e1o r\u1eb1ng ch\u1ea5t b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m th\u00f4ng th\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe \u0111\u01b0\u1eddng ru\u1ed9t. Nisin th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb s\u1eefa nh\u01b0 ph\u00f4 mai, kem ph\u00f4 mai, s\u1eefa chua v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m t\u1eeb th\u1ecbt \u0111\u1ec3 ng\u0103n ch\u1eb7n &hellip;<\/p>","protected":false},"author":0,"featured_media":46344,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[82,43],"tags":[],"class_list":["post-46343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-society","category-health"],"_links":{"self":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts\/46343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/comments?post=46343"}],"version-history":[{"count":0,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts\/46343\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/media\/46344"}],"wp:attachment":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/media?parent=46343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/categories?post=46343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/tags?post=46343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}