{"id":16500,"date":"2021-01-14T00:00:00","date_gmt":"2021-01-13T23:00:00","guid":{"rendered":"https:\/\/www.ecoceutics.com\/vitiligen\/"},"modified":"2023-03-27T16:29:13","modified_gmt":"2023-03-27T14:29:13","slug":"vitiligen","status":"publish","type":"post","link":"https:\/\/www.ecoceutics.com\/ca\/respostes-de-salut\/salut\/vitiligen\/","title":{"rendered":"Qu\u00e8 \u00e9s el vitiligen?"},"content":{"rendered":"<p>El vitiligen \u00e9s un problema de la pell caracteritzat per la p\u00e8rdua selectiva de les c\u00e8l\u00b7lules responsables de sintetitzar el pigment que l\u2019acoloreix, els melan\u00f2cits. Aquesta p\u00e8rdua fa que hi hagi zones sense color en la pell, causant un contrast important amb les \u00e0rees de pell que s\u00ed que estan pigmentades. Tamb\u00e9 hi ha melan\u00f2cits a l\u2019o\u00efda i a l\u2019iris (la part de l\u2019ull acolorida) pel que alguns pacients amb vitiligen poden desenvolupar problemes visuals i auditius.<\/p>\n<p>En aquest article t\u2019expliquem qu\u00e8 \u00e9s el vitiligen, per qu\u00e8 passa, i quins tractaments existeixen.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contenido de la p\u00e1gina<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #333333;color:#333333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #333333;color:#333333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ecoceutics.com\/ca\/respostes-de-salut\/salut\/vitiligen\/#que-es-el-vitiligen\" >Qu\u00e8 \u00e9s el vitiligen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ecoceutics.com\/ca\/respostes-de-salut\/salut\/vitiligen\/#per-que-passa-el-vitiligen\" >Per qu\u00e8 passa el vitiligen?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ecoceutics.com\/ca\/respostes-de-salut\/salut\/vitiligen\/#quants-tipus-de-vitiligen-hi-ha\" >Quants tipus de vitiligen hi ha?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ecoceutics.com\/ca\/respostes-de-salut\/salut\/vitiligen\/#com-es-tracta-el-vitiligen\" >Com es tracta el vitiligen?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"que-es-el-vitiligen\"><\/span>Qu\u00e8 \u00e9s el vitiligen?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>El vitiligen \u00e9s una malaltia que fa que&nbsp;algunes zones de la pell perdin el seu pigment. Les lesions caracter\u00edstiques s\u00f3n m\u00e0cules completament mancades de melanina, de color blanc guix amb marges clarament diferenciats. \u00c9s una malaltia autoimmune associada a factors gen\u00e8tics i ambientals en la qual influeix l\u2019estr\u00e8s oxidatiu, el metabolisme de base i problemes en la descamaci\u00f3 de la pell. Afecta el&nbsp;0.5-2% de la poblaci\u00f3 mundial, tant homes com dones, i la majoria dels casos comencen abans dels&nbsp;30&nbsp;anys.<br \/>\nPodr\u00edem pensar que, de totes les malalties que hi ha, aquesta \u00e9s \u00abpoc important\u00bb, ja que no fa mal ni incapacita. Per\u00f2 com afecta la pell pot tenir un impacte important en la vida social i laboral, afectant el benestar emocional del pacient. En molts casos l\u2019impacte \u00e9s tal que desemboca en depressi\u00f3, ansietat i problemes d\u2019autoestima.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"per-que-passa-el-vitiligen\"><\/span>Per qu\u00e8 passa el vitiligen?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>La causa subjacent del vitiligen sembla ser un esdeveniment que inicia una reacci\u00f3 de tipus inflamat\u00f2ria i que desemboca en una reacci\u00f3 del sistema immune contra els mateixos melan\u00f2cits. Per\u00f2 no hi ha un element que expliqui tots els casos de vitiligen, per aquest motiu es mira a l\u2019ambient i a l\u2019estr\u00e8s per a buscar un desencadenant. Coneixem algunes causes:<\/p>\n<ul>\n<li>La&nbsp;tirosinasa, l\u2019enzim relacionat amb la s\u00edntesi de melanina, \u00e9s atacada pel sistema immune.<\/li>\n<li>La s\u00edntesi de melanina genera mol\u00e8cules oxidants, i un desajust entre els oxidants i els antioxidants pot causar la destrucci\u00f3 dels melan\u00f2cits.<\/li>\n<li>El teixit amb vitiligen t\u00e9 problemes d\u2019adhesi\u00f3 entre queratin\u00f2cits i melan\u00f2cits, dos tipus cel\u00b7lulars de la pell, afavorint la p\u00e8rdua de c\u00e8l\u00b7lules i la descoloraci\u00f3 del teixit.<\/li>\n<li>Els melan\u00f2cits sintetitzen diferents senyals qu\u00edmics d\u2019estr\u00e8s cel\u00b7lular que les marquen per a la seva destrucci\u00f3, augmentant la s\u00edntesi d\u2019anticossos&nbsp;antiprote\u00efnes&nbsp;de melan\u00f2cits (no nom\u00e9s anti-tirosinasa).<\/li>\n<\/ul>\n<p>Tots aquests \u00abdefectes metab\u00f2lics\u00bb faciliten la destrucci\u00f3 dels melan\u00f2cits, donant origen al vitiligen.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"quants-tipus-de-vitiligen-hi-ha\"><\/span>Quants tipus de vitiligen hi ha?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Encara que parlem de \u00abvitiligen\u00bb com si hi hagu\u00e9s un nom\u00e9s, en realitat es classifica en diversos tipus. La classificaci\u00f3 la fa un dermat\u00f2leg segons l\u2019estructura de les taques, la localitzaci\u00f3, l\u2019\u00e0rea que cobreixen, la velocitat en la qual s\u2019estableixen les taques, etc. La classificaci\u00f3 \u00e9s \u00fatil per a definir el tractament.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"com-es-tracta-el-vitiligen\"><\/span>Com es tracta el vitiligen?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>El tractament dep\u00e8n del tipus de presentaci\u00f3 del vitiligen, l\u2019extensi\u00f3 de les lesions, l\u2019edat del pacient, el&nbsp;fototipus, etc. Sol estendre\u2019s durant mesos i es fa \u00aba mida\u00bb pels pacients, perqu\u00e8 cada cas \u00e9s diferent. A grans trets podem dir que els tractaments disponibles s\u00f3n:<\/p>\n<ul>\n<li>Primera l\u00ednia: corticoides i inhibidors de la calcineurina en crema. S\u00f3n tractaments&nbsp;immunosupressors, encara que tots dos actuen a diferent nivell.<\/li>\n<li>Segona l\u00ednia: fototer\u00e0pia. La combinaci\u00f3 de certs productes amb la llum UV estimula la s\u00edntesi de melanina. Usualment s\u2019utilitza psoral\u00e8n t\u00f2pic o corticoides orals, per\u00f2 hi ha recerques que suggereixen que la vitamina C, l\u2019\u00e0cid&nbsp;lipoic, i els extractes de Ginkgo biloba o&nbsp;Polypodium&nbsp;leucotomos&nbsp;poden ser bons complements de la fototer\u00e0pia.<\/li>\n<li>Tercera l\u00ednia: cirurgia. Pot utilitzar-se \u00abpell com a tal\u00bb o c\u00e8l\u00b7lules provinents de cultiu.<\/li>\n<\/ul>\n<p>Els tractaments cosm\u00e8tics tamb\u00e9 s\u00f3n una opci\u00f3, per si sols o complementant els anteriors. El maquillatge adequat, ben aplicat, pot dissimular molt b\u00e9 una zona blanca. En alguns casos tamb\u00e9 pot funcionar l\u2019\u00fas d\u2019autobronzejants&nbsp;amb&nbsp;dihidroxiacetona. Altres vegades el dermat\u00f2leg pot recomanar la despigmentaci\u00f3 d\u2019una zona, si realment queda una zona molt petita amb color de pell natural.<\/p>\n<p>S\u2019estan fent assajos cl\u00ednics per a delinear nous tractaments, per\u00f2 encara no tenen suport com els que tenen els de m\u00e9s amunt. Entre ells trobem:<\/p>\n<ul>\n<li>Afamelanotida. \u00c9s un estimulant de la s\u00edntesi de melanina. S\u2019utilitza en forma d\u2019implant en pacients amb una mena de porf\u00edria, per\u00f2 el seu \u00fas en combinaci\u00f3 amb llum UV encara s\u2019est\u00e0 estudiant en pacients amb vitiligen.<\/li>\n<li>Prostaglandina E2. El seu \u00fas \u00e9s conegut en ginecologia, i en crema sembla afavorir la&nbsp;repigmentaci\u00f3&nbsp;de zones blanques.<\/li>\n<li>Bimatoprost. Comercialitzat com a col\u00b7liri per al glaucoma, si es prepara en crema (amb corticoides associats o sense) sembla afavorir la&nbsp;repigmentaci\u00f3&nbsp;de la pell.<\/li>\n<li>Ruxolitinib. \u00c9s un medicament que inhibeix una via inflamat\u00f2ria molt espec\u00edfica, la JAK-STAT, i per via oral est\u00e0 autoritzat per a tractar esplenomeg\u00e0lia relacionada amb problemes de medul\u00b7la \u00f2ssia. En crema ha donat bons resultats de&nbsp;repigmentaci\u00f3&nbsp;en pacients amb vitiligen.<\/li>\n<\/ul>\n<p>Com veus, hi ha moltes opcions per al tractament del vitiligen. El dermat\u00f2leg ser\u00e0 qui valori qu\u00e8 \u00e9s el millor per a cada pacient en funci\u00f3 de les \u00e0rees afectades, la resposta a tractaments previs, els efectes adversos, etc. Com a farmac\u00e8utics no podem recomanar-te tractaments, ja que no \u00e9s la nostra \u00e0rea, per\u00f2 s\u00ed que podem donar-te dos consells. El primer: si veus taques blanques en el teu cos, ves&nbsp;al dermat\u00f2leg, ja que hi ha altres malalties que poden confondre\u2019s amb el vitiligen. El segon: si ja tens un tractament i no est\u00e0s conforme amb el resultat, consulta amb un professional abans d\u2019abandonar-lo o afegir coses de venda lliure, perqu\u00e8 aquests tractaments poden requerir setmanes o mesos per a canviar l\u2019aspecte de la teva pell.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El vitiligen \u00e9s un problema de la pell caracteritzat per la p\u00e8rdua selectiva de les c\u00e8l\u00b7lules responsables de sintetitzar el pigment que l\u2019acoloreix, els melan\u00f2cits. Aquesta p\u00e8rdua fa que hi hagi zones sense color en la pell, causant un contrast important amb les \u00e0rees de pell que s\u00ed que estan pigmentades. Tamb\u00e9 hi ha melan\u00f2cits [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":17934,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[4,1,1,4],"tags":[],"class_list":["post-16500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-respostes-de-salut","category-salut"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Qu\u00e8 \u00e9s el vitiligen? 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