{"id":3851,"date":"2015-01-29T10:12:18","date_gmt":"2015-01-29T09:12:18","guid":{"rendered":"https:\/\/aquihayquimica.iqs.edu\/2015\/01\/29\/cremas-para-protegernos-del-sol\/"},"modified":"2019-11-12T16:11:31","modified_gmt":"2019-11-12T15:11:31","slug":"cremes-per-protegir-nos-del-sol","status":"publish","type":"post","link":"https:\/\/aquihayquimica.iqs.edu\/ca\/2015\/01\/29\/cremes-per-protegir-nos-del-sol\/","title":{"rendered":"Cremes per protegir-nos del sol"},"content":{"rendered":"<p><p class=\"p1\">Es ben conegut que l\u2019exposici\u00f3 moderada\u00a0i controlada a la radiaci\u00f3 ultraviolada (UV)\u00a0\u00e9s beneficiosa. Per exemple, la radiaci\u00f3 UV\u00a0\u00e9s necessaria per a la s\u00edntesi de la vitamina\u00a0D<sub>3<\/sub> i la seva acci\u00f3 terap\u00e8utica es fa\u00a0servir per tractar afeccions cut\u00e0nies com la\u00a0psoriasi, la dermatitis, o l\u2019acne. Alhora, un\u00a0exc\u00e9s d\u2019exposici\u00f3 al sol pot causar agressions\u00a0que van des de les t\u00edpiques cremades\u00a0estivals fins al fotoenvelliment de la pell\u00a0o efectes mutag\u00e8nics relacionats amb el\u00a0c\u00e0ncer de pell o amb la p\u00e8rdua de resposta\u00a0immune cel\u00b7lular.<\/p>\n<p class=\"p1\">Per aix\u00f2, a partir dels anys 20 del segle\u00a0passat van sorgir al mercat els fotoprotectors\u00a0solars: preparats farmac\u00e8utics\u00a0d\u2019aplicaci\u00f3 t\u00f2pica capa\u00e7os de reflectir,\u00a0absorbir o dispersar la radiaci\u00f3 UV i disminuir\u00a0d\u2019aquesta manera els seus efectes negatius\u00a0sobre la pell. Els fotoprotectors es\u00a0basen en compostos anomenats filtres\u00a0qu\u00edmics que tenen en com\u00fa la capacitat\u00a0d\u2019absorbir radiaci\u00f3 en una determinada\u00a0regi\u00f3 de l\u2019UV.<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Es ben conegut que l\u2019exposici\u00f3 moderada\u00a0i controlada a la radiaci\u00f3 ultraviolada (UV)\u00a0\u00e9s beneficiosa. Per exemple, la radiaci\u00f3 UV\u00a0\u00e9s necessaria per a la s\u00edntesi de la vitamina\u00a0D3 i la seva acci\u00f3 terap\u00e8utica es fa\u00a0servir per tractar afeccions cut\u00e0nies com la\u00a0psoriasi, la dermatitis, o l\u2019acne. Alhora, un\u00a0exc\u00e9s d\u2019exposici\u00f3 al sol pot causar agressions\u00a0que van des de les [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[37],"tags":[],"_links":{"self":[{"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/posts\/3851"}],"collection":[{"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/comments?post=3851"}],"version-history":[{"count":2,"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/posts\/3851\/revisions"}],"predecessor-version":[{"id":6436,"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/posts\/3851\/revisions\/6436"}],"wp:attachment":[{"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/media?parent=3851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/categories?post=3851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aquihayquimica.iqs.edu\/ca\/wp-json\/wp\/v2\/tags?post=3851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}