{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T00:54:18Z","timestamp":1747184058357,"version":"3.40.5"},"reference-count":27,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2023,3,14]],"date-time":"2023-03-14T00:00:00Z","timestamp":1678752000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>A modulating effect of aluminium regarding type IV reactions might exist but has not been further investigated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The aim of this study was to investigate the effect on patch test reactions when adding aluminium chloride hexahydrate (Al\u2010Cl) to common test preparations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>Al\u2010Cl in different concentrations was added to nickel sulphate 15.0% aqua (Ni), methylisothiazolinone 0.2% aqua (MI) and fragrance mix I 10.0% aqua\/ethanol (FM I). The Ni preparations were tested in 120 consecutive patients. MI and FM I were tested in participants known to have contact allergy to the respective allergen. McNemar's test was used to decide which Ni preparation had the highest sensitivity. Wilcoxon signed\u2010rank test was used to calculate pairwise comparison in summarized test score for the preparations with MI and FM I.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Adding Al\u2010Cl 20.0%\/30.0% to Ni identified twice as many patients with contact allergy to nickel compared to Ni without Al\u2010Cl. Adding Al\u2010Cl 20.0%\/10.0% to MI, decreased the patch test reactivity compared to MI without Al\u2010Cl. No differences in patch reactivity were noticed when adding Al\u2010Cl to FM I.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Al\u2010Cl 20.0% or 30.0% seems to enhance the patch test reactivity to Ni 15.0% aqua.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cod.14299","type":"journal-article","created":{"date-parts":[[2023,2,25]],"date-time":"2023-02-25T08:08:30Z","timestamp":1677312510000},"page":"456-462","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effects of aluminium chloride added to common patch test substances"],"prefix":"10.1111","volume":"88","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2606-5588","authenticated-orcid":false,"given":"Lisbeth Rosholm","family":"Comstedt","sequence":"first","affiliation":[{"name":"Department of Occupational and Environmental Dermatology Sk\u00e5ne University Hospital, Lund University  Malm\u00f6 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