{"id":393,"date":"2019-04-24T09:17:56","date_gmt":"2019-04-24T02:17:56","guid":{"rendered":"https:\/\/vppharmacorp.com\/?p=393"},"modified":"2019-06-10T13:31:18","modified_gmt":"2019-06-10T06:31:18","slug":"tac-hai-cua-tia-uv-doi-voi-lan-da","status":"publish","type":"post","link":"https:\/\/vppharmacorp.com\/tac-hai-cua-tia-uv-doi-voi-lan-da\/","title":{"rendered":"T\u00e1c h\u1ea1i c\u1ee7a tia UV \u0111\u1ed1i v\u1edbi l\u00e0n da?"},"content":{"rendered":"\n
N\u1eafng n\u00f3ng cao \u0111i\u1ec3m kh\u1eafp c\u1ea3 n\u01b0\u1edbc v\u00e0 ch\u1ec9 s\u1ed1 tia UV v\u01b0\u1ee3t ng\u01b0\u1ee1ng an to\u00e0n d\u1ec5 g\u00e2y s\u1ed1c nhi\u1ec7t, t\u1ed5n th\u01b0\u01a1ng da \u1edf nhi\u1ec1u c\u1ea5p \u0111\u1ed9<\/strong><\/p>\n\n\n\n \n\nTia UVA c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng s\u00e2u v\u00e0o b\u00ean trong da, l\u00e0m t\u0103ng sinh men ti\u00eau h\u1ee7y c\u1ea5u tr\u00fac n\u1ec1n MMPs, t\u1eeb \u0111\u00f3 l\u00e0m \u0111\u1ee9t g\u00e3y, ti\u00eau h\u1ee7y c\u00e1c protein d\u1ea1ng s\u1ee3i (collagen, elastin, laminin, fibronectin) v\u00e0 c\u00e1c ph\u00e2n t\u1eed proteoglycan. Do \u0111\u00f3, da kh\u00f4ng ch\u1ec9 x\u1ec9n m\u00e0u do ch\u00e1y n\u1eafng, m\u00e0 s\u1ebd th\u00eam nh\u0103n – kh\u00f4 – s\u1ea1m n\u00e1m, ch\u00f9ng nh\u00e3o, ch\u1ea3y x\u1ec7, th\u1eadm ch\u00ed ung th\u01b0 da – nh\u1eefng h\u1eadu qu\u1ea3 nguy hi\u1ec3m m\u00e0 \u00edt ng\u01b0\u1eddi ngh\u0129 do \u00e1nh n\u1eafng.\n\n<\/p>\n\n\n\n Theo khuy\u1ebfn c\u00e1o c\u1ee7a T\u1ed5 ch\u1ee9c Y t\u1ebf th\u1ebf gi\u1edbi (WHO), ch\u1ec9 s\u1ed1 tia c\u1ef1c t\u00edm (UV) an to\u00e0n khi n\u1eb1m trong ng\u01b0\u1ee1ng 0-2 (m\u1ee9c g\u00e2y h\u1ea1i th\u1ea5p), t\u1edbi m\u1ee9c 3 \u0111\u00e3 b\u1eaft \u0111\u1ea7u g\u00e2y t\u1ed5n th\u01b0\u01a1ng cho da. Trong khi \u0111\u00f3, nh\u1eefng ng\u00e0y g\u1ea7n \u0111\u00e2y t\u1ea1i TP HCM, tia UV \u0111\u1ea1t m\u1ee9c 12 – m\u1ee9c nguy hi\u1ec3m c\u1ef1c \u0111\u1ed9. <\/p>\n\n\n\n Ch\u1ec9 s\u1ed1 UV t\u1eeb 11 tr\u1edf l\u00ean, n\u1ebfu ti\u1ebfp x\u00fac li\u00ean t\u1ee5c 10 ph\u00fat v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi m\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, nguy c\u01a1 b\u1ecfng da, ch\u00e1y da r\u1ea5t cao. <\/p>\n\n\n\nCh\u1ec9 s\u1ed1 tia c\u1ef1c t\u00edm (UV Index) cao \u1edf m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ed1 ng\u00e0y 24\/4-26\/4<\/strong><\/h3>\n\n\n\n
T\u1ec9nh\/th\u00e0nh<\/strong><\/td> 24\/4<\/strong><\/td> 25\/4<\/strong><\/td> 26\/4<\/strong><\/td><\/tr> TP HCM<\/td> 12<\/td> 12<\/td> 11<\/td><\/tr> \u0110\u00e0 N\u1eb5ng<\/td> 12<\/td> 11<\/td> 12<\/td><\/tr> \u0110\u00e0 L\u1ea1t<\/td> 12<\/td> 12<\/td> 12<\/td><\/tr> Ph\u00fa Qu\u1ed1c<\/td> 12<\/td> 12<\/td> 12<\/td><\/tr> Sa Pa<\/td> 12<\/td> 12<\/td> 12<\/td><\/tr><\/tbody><\/table>\n\n\n\n