{"id":158674,"date":"2026-02-07T06:21:10","date_gmt":"2026-02-07T06:21:10","guid":{"rendered":"https:\/\/www.europesays.com\/se\/158674\/"},"modified":"2026-02-07T06:21:10","modified_gmt":"2026-02-07T06:21:10","slug":"nya-forskningsron-gratt-har-kan-vara-reversibelt","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/se\/158674\/","title":{"rendered":"Nya forskningsr\u00f6n: Gr\u00e5tt h\u00e5r kan vara reversibelt"},"content":{"rendered":"<p>Gr\u00e5tt h\u00e5r kan i framtiden g\u00e5 att behandla s\u00e5 att det \u00e5terf\u00e5r sin tidigare f\u00e4rg. Det visar en ny studie som kopplar gr\u00e5nande h\u00e5r till pigmentbildande stamceller som har fastnat i h\u00e5rs\u00e4ckarna och d\u00e4rmed inte l\u00e4ngre kan producera f\u00e4rg, <a href=\"https:\/\/www.popularmechanics.com\/science\/health\/a70201936\/gray-hair-could-be-reversible-research\/\" rel=\"nofollow noopener\" target=\"_blank\">skriver Popular Mechanics<\/a>.<\/p>\n<p><strong>MISSA INTE: <\/strong><a href=\"https:\/\/www.news55.se\/halsa\/lakemedel-for-miljarder-eldas-upp-1-400-ton-om-aret\/\" rel=\"nofollow noopener\" target=\"_blank\">L\u00e4kemedel f\u00f6r miljarder eldas upp \u2013 1 400 ton om \u00e5ret<\/a><\/p>\n<p>Studien, <a href=\"https:\/\/www.nature.com\/articles\/s41586-023-05960-6\" rel=\"nofollow noopener\" target=\"_blank\">som publicerats i den vetenskapliga tidskriften Nature<\/a>, har genomf\u00f6rts av forskare vid New York Universitys Grossman School of Medicine. Forskarna har unders\u00f6kt s\u00e5 kallade melanocytstamceller, McSC, som ansvarar f\u00f6r produktionen av pigment i h\u00e5ret. <\/p>\n<p>\u201cAvg\u00f6rande f\u00f6r att h\u00e5lla h\u00e5ret friskt och f\u00e4rgat\u201d<\/p>\n<p>I ett normalt tillst\u00e5nd r\u00f6r sig dessa celler mellan olika delar av h\u00e5rs\u00e4cken under h\u00e5rstr\u00e5ets utveckling, vilket g\u00f6r att de kan mogna och bilda pigment som ger h\u00e5ret dess f\u00e4rg.<\/p>\n<p>N\u00e4r cellerna fastnar i en specifik del av h\u00e5rs\u00e4cken \u2013 den s\u00e5 kallade bulgen \u2013 f\u00f6rlorar de f\u00f6rm\u00e5gan att \u00e5terv\u00e4nda till den milj\u00f6 d\u00e4r de stimuleras att bilda pigment. Resultatet blir h\u00e5rstr\u00e5n utan f\u00e4rg, allts\u00e5 gr\u00e5tt h\u00e5r. Enligt forskarna inneb\u00e4r det att gr\u00e5nandet inte fr\u00e4mst beror p\u00e5 att cellerna f\u00f6rsvinner, utan p\u00e5 att deras r\u00f6relsem\u00f6nster bryts.<\/p>\n<p>\u201dDet \u00e4r f\u00f6rlusten av den kameleontliknande funktionen hos melanocytstamcellerna som kan vara ansvarig f\u00f6r gr\u00e5nande och f\u00f6rlust av h\u00e5rf\u00e4rg\u201d, s\u00e4ger <strong>Mayumi Ito<\/strong>, senior forskare bakom studien, i ett uttalande. <\/p>\n<p>\u201dResultaten pekar p\u00e5 att h\u00e5ret h\u00e5lls friskt och f\u00e4rgat tack vare stamceller som kan r\u00f6ra sig och tillf\u00e4lligt \u00e4ndra uppgift.\u201d<\/p>\n<p><strong>MISSA INTE: <\/strong><a href=\"https:\/\/www.news55.se\/halsa\/klimatangest-undersoks-av-forskare-en-dissonans\/\" rel=\"nofollow noopener\" target=\"_blank\">Klimat\u00e5ngest unders\u00f6ks av forskare: \u201cEn dissonans\u201d<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Gr\u00e5tt h\u00e5r kan i framtiden g\u00e5 att behandla s\u00e5 att det \u00e5terf\u00e5r sin tidigare f\u00e4rg. Det visar en&hellip;\n","protected":false},"author":2,"featured_media":158675,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[69],"tags":[2069,9368,632,12745,113,12682,112,34,4595,31,33,32,30],"class_list":["post-158674","post","type-post","status-publish","format-standard","has-post-thumbnail","category-halsa","tag-aldrande","tag-farger","tag-forskning","tag-gratt-har","tag-halsa","tag-har","tag-health","tag-se","tag-studie","tag-svenska","tag-sverige","tag-sweden","tag-swedish"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@se\/116027908625133130","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts\/158674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/comments?post=158674"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts\/158674\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/media\/158675"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/media?parent=158674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/categories?post=158674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/tags?post=158674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}