{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T03:28:41Z","timestamp":1784258921795,"version":"3.55.0"},"reference-count":24,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2017,10,22]],"date-time":"2017-10-22T00:00:00Z","timestamp":1508630400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Ministry of Economy, Trade and Industry of Japan, \u201cProject Focused on Developing Key Evaluation Technology: Evaluation for Industrialization in the Field of Regenerative Medicine in 2014.\u201d"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Skin Research and Technology"],"published-print":{"date-parts":[[2018,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Acquired skin hypopigmentation has many etiologies, including autoimmune melanocyte destruction, skin aging, inflammation, and chemical exposure. Distinguishing lesions from normally pigmented skin is clinically important to precisely assess disease severity. However, no gold standard assessment method has been reported. We aimed to investigate whether spectrophotometers are useful for assessing vitiligo and rhododendrol (4\u2010(4\u2010hydroxyphenol)\u20102\u2010butanol) (Rhododenol<jats:sup>\u00ae<\/jats:sup>)\u2010induced leukoderma disease severity by quantifying skin color.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Mexameter<jats:sup>\u00ae<\/jats:sup> <jats:styled-content style=\"fixed-case\">MX<\/jats:styled-content>18 and <jats:styled-content style=\"fixed-case\">CM<\/jats:styled-content>\u2010700d spectrophotometer were used for assessing vitiligo\/leukoderma by measuring melanin index, <jats:italic>L<\/jats:italic>*<jats:italic>a<\/jats:italic>*<jats:italic>b<\/jats:italic>* color space, and \u0394<jats:italic>E<\/jats:italic>*<jats:italic>ab<\/jats:italic> value, which represents the color difference between two subjects and is calculated by the values of <jats:italic>L<\/jats:italic>*<jats:italic>a<\/jats:italic>*<jats:italic>b<\/jats:italic>*.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p><jats:styled-content style=\"fixed-case\">MX<\/jats:styled-content>18 and <jats:styled-content style=\"fixed-case\">CM<\/jats:styled-content>\u2010700d can quantitatively distinguish vitiligo\/leukoderma from normally pigmented skin based on melanin index. <jats:styled-content style=\"fixed-case\">CM<\/jats:styled-content>\u2010700d consistently quantified the color of vitiligo\/leukoderma lesions and surrounding normally pigmented skin in <jats:italic>L<\/jats:italic>*<jats:italic>a<\/jats:italic>*<jats:italic>b<\/jats:italic>* color spaces and \u0394<jats:italic>E<\/jats:italic>*<jats:italic>ab<\/jats:italic>. \u0394<jats:italic>E<\/jats:italic>*<jats:italic>ab<\/jats:italic> is well correlated with melanin index and clinical appearance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>\u0394<jats:italic>E<\/jats:italic>*<jats:italic>ab<\/jats:italic> has been frequently used in aesthetic dentistry; however, current study is the first to use it in the measurement of skin color. \u0394<jats:italic>E<\/jats:italic>*<jats:italic>ab<\/jats:italic> seems to be a useful parameter to evaluate the color contrast between vitiligo\/leukoderma and surrounding normally pigmented skin and can be used to evaluate disease severity and patient's quality of life.<\/jats:p><\/jats:sec>","DOI":"10.1111\/srt.12410","type":"journal-article","created":{"date-parts":[[2017,10,23]],"date-time":"2017-10-23T04:12:37Z","timestamp":1508731957000},"page":"175-179","source":"Crossref","is-referenced-by-count":13,"title":["Spectrophotometer is useful for assessing vitiligo and chemical leukoderma severity by quantifying color difference with surrounding normally pigmented skin"],"prefix":"10.1111","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1674-4093","authenticated-orcid":false,"given":"M.","family":"Hayashi","sequence":"first","affiliation":[{"name":"Department of Dermatology Yamagata University Faculty of Medicine  Yamagata Yamagata Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K.","family":"Okamura","sequence":"additional","affiliation":[{"name":"Department of Dermatology Yamagata University Faculty of Medicine  Yamagata Yamagata Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"Araki","sequence":"additional","affiliation":[{"name":"Department of Dermatology Yamagata University Faculty of Medicine  Yamagata Yamagata Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Japan Tissue Engineering Co., Ltd.  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