{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T23:48:02Z","timestamp":1791935282101,"version":"4.3.4"},"reference-count":0,"publisher":"Medical Journals Sweden AB","issue":"3","license":[{"start":{"date-parts":[[2008,5,3]],"date-time":"2008-05-03T00:00:00Z","timestamp":1209772800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acta Derm Venereol"],"abstract":"<jats:p>There have been few previous studies of the kinetics of pigmentation following ultraviolet B (UVB) exposure, and these have included only fair-skinned persons. The current study investigated pigmentation increase to steady state and fading in 12 Scandinavians and 12 Indians\/Pakistanis. Over a period of 3 weeks the subjects were UV-irradiated 6 times on the right side of the back and 12 times on the left side using a Solar Simulator and narrowband UVB with equal sub-Minimal Melanogenesis Doses (individually predetermined). Pigmentation was measured from skin remittance at 555 nm and 660 nm (allowing correction for erythema). The absolute pigmentation increase was independent of pre-exposure pigmentation, therefore the percentage pigmentation increase was higher in fair-skinned volunteers. The UV dose to minimal pigmentation was higher in darker-skinned persons for single and multiple UV exposures for both UV sources. Going from a single exposure to 6 and 12 exposures, the required dose to minimal pigmentation was reduced by factors of 2 and 3, respectively, for both UV sources, thus reducing the risk of sunburn, but the cumulative dose increased 3- and 4-fold, respectively. This result was independent of skin type and pre-exposure pigmentation. Fading took 4-5 months and was not related to frequency of UV exposure or to ethnic origin.<\/jats:p>","DOI":"10.2340\/00015555-0431","type":"journal-article","created":{"date-parts":[[2023,4,5]],"date-time":"2023-04-05T11:38:43Z","timestamp":1680694723000},"page":"223-228","source":"Crossref","is-referenced-by-count":20,"title":["Skin Pigmentation Kinetics After UVB Exposure"],"prefix":"10.2340","volume":"88","author":[{"given":"Mette H.","family":"Ravnbak","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter A.","family":"Philipsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stine R.","family":"Wiegell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans C.","family":"Wulf","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1183","published-online":{"date-parts":[[2008,5,3]]},"container-title":["Acta Dermato-Venereologica"],"original-title":[],"link":[{"URL":"https:\/\/medicaljournalssweden.se\/actadv\/article\/download\/8639\/12120","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/medicaljournalssweden.se\/actadv\/article\/download\/8639\/12120","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,4,5]],"date-time":"2023-04-05T11:38:43Z","timestamp":1680694723000},"score":1,"resource":{"primary":{"URL":"https:\/\/medicaljournalssweden.se\/actadv\/article\/view\/8639"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,5,3]]},"references-count":0,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2008,5,1]]}},"URL":"https:\/\/doi.org\/10.2340\/00015555-0431","relation":{},"ISSN":["1651-2057","0001-5555"],"issn-type":[{"value":"1651-2057","type":"electronic"},{"value":"0001-5555","type":"print"}],"subject":[],"published":{"date-parts":[[2008,5,3]]}}}