{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T05:09:47Z","timestamp":1777957787131,"version":"3.51.4"},"reference-count":46,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2024,9,27]],"date-time":"2024-09-27T00:00:00Z","timestamp":1727395200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>Photoallergic reactions due to topical ketoprofen are common. As some simultaneous contact allergies have been described in the literature, we aimed to get an overview of the pattern of reactivity towards common allergens in the baseline series in ketoprofen\u2010photoallergic individuals.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Using our database, we found 94 patients with photocontact allergy to ketoprofen diagnosed during 1999\u20132018. Approximately 12\u2009800 patients patch tested with the baseline series during the same time frame served as controls. Data on patch testing with the baseline series of 518 individuals belonging to the general population were obtained from an earlier study, and a comparison of allergy rates was made with the ketoprofen group.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Contact allergy to fragrance mix I and <jats:italic>Myroxylon pereirae<\/jats:italic> was overrepresented among patients with photocontact allergy to ketoprofen (42.3% vs. 6.6% and 47.9% vs. 6.6%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001, respectively). Significant overrepresentation was also shown for 4\u2010tert\u2010butylphenolformaldehyde resin (PTBP\u2010F\u2010R), phenol formaldehyde resin (PFR\u20102), black rubber mix, budesonide (all <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), and fragrance mix II (<jats:italic>p<\/jats:italic>\u2009=\u20090.02). The pattern was similar, but with lower significance levels for fragrance mix II and budesonide, regardless of whether or not the individuals had been photopatch tested because of a suspected photoallergic contact dermatitis from ketoprofen.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Contact allergy to fragrance mix I, <jats:italic>Myroxylon pereirae<\/jats:italic>, black rubber mix, PFR\u20102, PTBP\u2010FR, and to a somewhat lower extent, to fragrance mix II and budesonide, is common in individuals photoallergic to ketoprofen. It remains to be seen whether sensitisation to ketoprofen leads to simultaneous sensitisation to a number of other, chemically non\u2010related, substances.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cod.14696","type":"journal-article","created":{"date-parts":[[2024,9,27]],"date-time":"2024-09-27T12:10:16Z","timestamp":1727439016000},"page":"474-484","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Surprising results of patch testing with the baseline series in patients with photocontact allergy to ketoprofen"],"prefix":"10.1111","volume":"91","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8728-2677","authenticated-orcid":false,"given":"V.","family":"Marmgren","sequence":"first","affiliation":[{"name":"Department of Occupational and Environmental Dermatology Lund University, Sk\u00e5ne University Hospital  Malm\u00f6 Sweden"},{"name":"Department of Dermatology and Venereology Sahlgrenska University Hospital  Gothenburg Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6172-9274","authenticated-orcid":false,"given":"M.","family":"Mowitz","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Dermatology Lund University, Sk\u00e5ne University Hospital  Malm\u00f6 Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E.","family":"Zimerson","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Dermatology Lund University, Sk\u00e5ne University Hospital  Malm\u00f6 Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Hinds\u00e9n","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Dermatology Lund University, Sk\u00e5ne University Hospital  Malm\u00f6 Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2919-3227","authenticated-orcid":false,"given":"M.","family":"Bruze","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Dermatology Lund University, Sk\u00e5ne University Hospital  Malm\u00f6 Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,9,27]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1186\/ar4175"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.113.004480"},{"key":"e_1_2_10_4_1","unstructured":"Online. 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