{"id":6878,"date":"2017-06-16T21:18:14","date_gmt":"2017-06-16T21:18:14","guid":{"rendered":"http:\/\/doctorexpres.ro\/?p=6878"},"modified":"2017-06-16T21:18:14","modified_gmt":"2017-06-16T21:18:14","slug":"descoperire-care-bronzeaza-fara-risc-de-cancer","status":"publish","type":"post","link":"https:\/\/doctorexpres.ro\/index.php\/2017\/06\/16\/descoperire-care-bronzeaza-fara-risc-de-cancer\/","title":{"rendered":"Descoperire care bronzeaz\u0103 f\u0103r\u0103 risc de cancer"},"content":{"rendered":"

Dup\u0103 mai mult de zece ani de eforturi, cercet\u0103torii au descoperit o substan\u0163\u0103 care poate penetra pielea \u015fi o poate bronza f\u0103r\u0103 expunerea organismului la razele ultraviolete ale soarelui, evit\u00eendu-se astfel riscul de a dezvolta cancer de piele.<\/p>\n

Spre deosebire de cremele tradi\u0163ionale autobronzante, care doar coloreaz\u0103 stratul superficial al pielii<\/a>, aceast\u0103 molecul\u0103 ac\u0163ioneaz\u0103 prin stimularea celulelor care produc pigmentul al c\u0103rui rol este de a absorbi ultravioletele<\/a>, explic\u0103 cercet\u0103torii. Aceast\u0103 substan\u0163\u0103 aplicat\u0103 ca o crem\u0103, a ajutat \u015foarecii ro\u015fca\u0163i s\u0103 se bronzeze, care, la fel ca oamenii, s\u00eent mai susceptibili de a dezvolta cancer al pielii <\/a>sub efectul razelor ultraviolete.<\/p>\n

Nefiind protejat\u0103 de un strat gros de p\u0103r, pielea uman\u0103 a trebuit s\u0103 evolueze \u00een timp pentru a dezvolta protec\u0163ii \u00eempotriva temperaturilor extreme<\/a> \u015fi a razelor ultraviolete<\/a>.<\/p>\n

\u201ePielea uman\u0103 este o barier\u0103 formidabil\u0103, dificil de penetrat<\/em>\u201d, spune dr. David Fisher, \u015fef al departamentului de dermatologie la Spitalul American General din Massachusetts \u015fi profesor la Harvard Medical School, autorul principal al descoperirii. \u201eDup\u0103 zece ani, am g\u0103sit o solu\u0163ie cu o clas\u0103 de molecule care pot s\u0103 treac\u0103 prin lipide pentru a viza o alt\u0103 enzim\u0103 care ac\u0163ioneaz\u0103 asupra mecanismului genetic al pigment\u0103rii pielii<\/a><\/em>.\u201d<\/p>\n

Oamenii de \u015ftiin\u0163\u0103 au testat aceste molecule pe probe de piele <\/a>uman\u0103 \u00een laborator \u015fi au constatat c\u0103 bronzeaz\u0103 mai mult sau mai pu\u0163in, \u00een func\u0163ie de doza de substan\u0163\u0103 \u015fi frecven\u0163a aplica\u0163iilor. Acest bronz artificial a durat mai multe zile.<\/p>\n

\u201ePoten\u0163iala importan\u0163\u0103 a acestui studiu const\u0103 \u00eentr-o nou\u0103 strategie de protec\u0163ie a pielii<\/a> \u015fi de prevenire a cancerului de piele<\/em>\u201d, a spus Fisher, care constat\u0103 c\u0103 \u201epielea, cel mai mare organ al corpului nostru, poate fi afectat\u0103 de cancer<\/a>, iar majoritatea cazurilor s\u00eent legate de expunerea la radia\u0163ii ultraviolete<\/em>\u201d.<\/p>\n

Studiul a fost publicat \u00een revista Cell. Noua molecul\u0103 trebuie supus\u0103 mai departe unor teste pre-clinice \u00eenainte de a stabili c\u0103 e sigur\u0103 pentru om.<\/p>\n

Sursa: 7sur7.be<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Dup\u0103 mai mult de zece ani de eforturi, cercet\u0103torii au descoperit o substan\u0163\u0103 care poate penetra pielea \u015fi o poate<\/p>\n","protected":false},"author":4,"featured_media":6879,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[96,93,109,1315,554,91],"tags":[9960,9959,714,9957,9956,9958,1525,9955,9402,1211],"class_list":["post-6878","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-boli","category-cancer","category-factori-naturali","category-iulie","category-pielea","category-stiri","tag-bronz-artificial","tag-bronzare-artificiala","tag-cancer-de-piele","tag-crema-bronzare","tag-creme-autobronzante","tag-dr-david-fisher","tag-melanom","tag-metoda-bronzat","tag-pigmentare","tag-ultraviolete"],"yoast_head":"\nDescoperire care bronzeaz\u0103 f\u0103r\u0103 risc de cancer - Doctor Expres<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/doctorexpres.ro\/index.php\/2017\/06\/16\/descoperire-care-bronzeaza-fara-risc-de-cancer\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Descoperire care bronzeaz\u0103 f\u0103r\u0103 risc de cancer - Doctor Expres\" \/>\n<meta property=\"og:description\" content=\"Dup\u0103 mai mult de zece ani de eforturi, cercet\u0103torii au descoperit o substan\u0163\u0103 care poate penetra pielea \u015fi o poate\" \/>\n<meta property=\"og:url\" content=\"https:\/\/doctorexpres.ro\/index.php\/2017\/06\/16\/descoperire-care-bronzeaza-fara-risc-de-cancer\/\" \/>\n<meta property=\"og:site_name\" content=\"Doctor Expres\" \/>\n<meta property=\"article:published_time\" content=\"2017-06-16T21:18:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/doctorexpres.ro\/wp-content\/uploads\/2017\/06\/word-image-7.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"460\" \/>\n\t<meta property=\"og:image:height\" content=\"277\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Doctor Expres\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Scris de\" \/>\n\t<meta name=\"twitter:data1\" content=\"Doctor Expres\" \/>\n\t<meta name=\"twitter:label2\" content=\"Timp estimat pentru citire\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/doctorexpres.ro\/index.php\/2017\/06\/16\/descoperire-care-bronzeaza-fara-risc-de-cancer\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/doctorexpres.ro\/index.php\/2017\/06\/16\/descoperire-care-bronzeaza-fara-risc-de-cancer\/\"},\"author\":{\"name\":\"Doctor Expres\",\"@id\":\"https:\/\/doctorexpres.ro\/#\/schema\/person\/28f79c329d023ab5816a649c97121076\"},\"headline\":\"Descoperire care bronzeaz\u0103 f\u0103r\u0103 risc de cancer\",\"datePublished\":\"2017-06-16T21:18:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/doctorexpres.ro\/index.php\/2017\/06\/16\/descoperire-care-bronzeaza-fara-risc-de-cancer\/\"},\"wordCount\":344,\"commentCount\":33,\"image\":{\"@id\":\"https:\/\/doctorexpres.ro\/index.php\/2017\/06\/16\/descoperire-care-bronzeaza-fara-risc-de-cancer\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/doctorexpres.ro\/wp-content\/uploads\/2017\/06\/word-image-7.jpg\",\"keywords\":[\"bronz artificial\",\"bronzare artificiala\",\"cancer de piele\",\"crema bronzare\",\"creme autobronzante\",\"dr. 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