{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T05:18:54Z","timestamp":1791955134020,"version":"4.3.4"},"reference-count":7,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2007,7,11]],"date-time":"2007-07-11T00:00:00Z","timestamp":1184112000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2007,8]]},"abstract":"<jats:p>Para\u2010phenylenediamine (PPD), a constituent of permanent hair dyes, may cause contact allergy in exposed individuals. It has previously been questioned whether a patch testing with PPD in population\u2010based epidemiological studies is entirely safe. The Glostrup allergy studies patch tested the same cohort twice. In 1990, 567 persons were patch\u2010tested and only one person had a (+) positive reaction to PPD. In 1998, 540 persons were re\u2010invited to a new patch test and 365 (participation rate 68%) were re\u2010tested. There were no positive reactions to PPD. These studies indicate that patch testing with PPD in individuals with no previous positive reactions to PPD or with only one previous positive reaction does not cause active sensitization and can be performed with minimal risk.<\/jats:p>","DOI":"10.1111\/j.1600-0536.2007.01093.x","type":"journal-article","created":{"date-parts":[[2007,7,11]],"date-time":"2007-07-11T19:40:51Z","timestamp":1184182851000},"page":"133-134","source":"Crossref","is-referenced-by-count":17,"title":["Is there a risk of active sensitization to PPD by patch testing the general population?"],"prefix":"10.1111","volume":"57","author":[{"given":"Jacob Pontoppidan","family":"Thyssen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Torkil","family":"Menn\u00e9","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niels Henrik","family":"Nielsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allan","family":"Linneberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,7,11]]},"reference":[{"key":"e_1_2_5_2_2","first-page":"376","article-title":"Der klinische Wert der ekzempropen, an der nickeldiosynkrasie erl\u00e4utert","volume":"17","author":"Bonnevie P","year":"1936","journal-title":"Acta Derm Venereol"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2133.2006.07159.x"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.0105-1873.2005.00610.x"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0536.2002.470107.x"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2133.2002.04668.x"},{"key":"e_1_2_5_7_2","doi-asserted-by":"crossref","first-page":"456","DOI":"10.2340\/0001555572456460","article-title":"Allergic contact sensitization in an unselected Danish population. The Glostrup Allergy Study, Denmark","volume":"72","author":"Nielsen N H","year":"1992","journal-title":"Acta Derm Venereol"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0536.2002.470203.x"}],"container-title":["Contact Dermatitis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1600-0536.2007.01093.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1600-0536.2007.01093.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,31]],"date-time":"2023-10-31T02:53:38Z","timestamp":1698720818000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1600-0536.2007.01093.x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,7,11]]},"references-count":7,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2007,8]]}},"alternative-id":["10.1111\/j.1600-0536.2007.01093.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1600-0536.2007.01093.x","archive":["Portico"],"relation":{},"ISSN":["0105-1873","1600-0536"],"issn-type":[{"value":"0105-1873","type":"print"},{"value":"1600-0536","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,7,11]]}}}