{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T12:33:24Z","timestamp":1783686804464,"version":"3.55.0"},"reference-count":41,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,5,11]],"date-time":"2022-05-11T00:00:00Z","timestamp":1652227200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Semmelweis 250+ PhD Excellency Scholarship","award":["EFOP-3.6.3-VEKOP-16-2017-00009"],"award-info":[{"award-number":["EFOP-3.6.3-VEKOP-16-2017-00009"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Life"],"abstract":"<jats:p>Atopic dermatitis (AD) is a chronic inflammatory disease characterised by an impaired skin barrier. The prolonged use of topical preparations containing medications, emollients, fragrances and preservatives may increase the risk of contact hypersensitivity (CHS). In the Allergy Outpatient Unit of the Department of Dermatology, Venereology and Dermatooncology of Semmelweis University, 5790 adult patients were patch tested between 2007\u20132021 with the European Environmental Baseline Series according to international standards. Among all the tested adult patients, 723 had preservative CHS (PCHS) and 639 had AD. Among the 723 PCHS patients, 68 (9.4%) had AD; the female to male ratio was 3:1 in this group. Out of 639 AD patients, 68 had PCHS (10.6%). In the AD-PCHS group, 83.8% had CHS to methylisothiazolinone (MI) (tested from 2014), 36.8% to Kathon CG\u00ae, 16.2% to methyldibromo-glutaronitrile, 11.8% to paraben, 7.4% to formaldehyde, 4.4% to para-tert-butylphenol-formaldehyde resin and 1.5% to Quaternium-15. The most common concomitant PCHS combination was Kathon CG\u00ae + MI. Most patients (32.4%) belonged to the age group of 21\u201330, and skin symptoms affected mostly the limbs and face. The most common other concomitant allergens were nickel, lanolin alcohol and balsam of Peru. Preservatives (especially MI and Kathon CG\u00ae) are important contact allergens in adult AD, mostly among young women. The rate of AD in the PCHS group and the rate of PCHS in the AD group is remarkable; thus, the role of PCHS should be highlighted in the topical therapy and in the prevention of possible AD exacerbations.<\/jats:p>","DOI":"10.3390\/life12050715","type":"journal-article","created":{"date-parts":[[2022,5,12]],"date-time":"2022-05-12T05:10:32Z","timestamp":1652332232000},"page":"715","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Preservative Contact Hypersensitivity among Adult Atopic Dermatitis Patients"],"prefix":"10.3390","volume":"12","author":[{"given":"Dominik","family":"N\u00e9meth","sequence":"first","affiliation":[{"name":"Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 41 M\u00e1ria Street, 1085 Budapest, Hungary"},{"name":"K\u00e1roly R\u00e1cz Doctoral School of Clinical Medicine, Semmelweis University, 26 \u00dcll\u0151i Street, 1085 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erzs\u00e9bet","family":"Temesv\u00e1ri","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 41 M\u00e1ria Street, 1085 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P\u00e9ter","family":"Holl\u00f3","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 41 M\u00e1ria Street, 1085 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gy\u00f6rgyi","family":"P\u00f3nyai","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, 41 M\u00e1ria Street, 1085 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"S58","DOI":"10.1016\/j.jaci.2017.01.008","article-title":"Clinical phenotypes and endophenotypes of atopic dermatitis: Where are we, and where should we go?","volume":"139","author":"Bieber","year":"2017","journal-title":"J. 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