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Twenty-eight-day fo...
Twenty-eight-day follow-up of patch test reactions to p-phenylenediamine and p-phenylenediamine dihydrochloride : A multicentre study on behalf of the European Environmental and Contact Dermatitis Research Group
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- Young, Ewa (författare)
- Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups,Skåne University Hospital
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- Andersen, Klaus E. (författare)
- University of Southern Denmark,Odense University Hospital
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- Bruze, Magnus (författare)
- Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups,Skåne University Hospital
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- Giménez-Arnau, Ana (författare)
- Autonomous University of Barcelona,Hospital del Mar Medical Research Institute
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- Ross-Hansen, Katrine (författare)
- University of Copenhagen,Gentofte Hospital
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- Johansen, Jeanne D. (författare)
- Gentofte Hospital,University of Copenhagen
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- Madsen, Jakob Torp (författare)
- University of Southern Denmark,Odense University Hospital
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- Zimerson, Erik (författare)
- Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups,Skåne University Hospital
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- Svedman, Cecilia (författare)
- Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups,Skåne University Hospital
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(creator_code:org_t)
- 2019-03-14
- 2019
- Engelska.
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Ingår i: Contact Dermatitis. - : Wiley. - 0105-1873 .- 1600-0536. ; 81:1, s. 1-8
- Relaterad länk:
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http://dx.doi.org/10...
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Abstract
Ämnesord
Stäng
- Background: There is an ongoing discussion on whether routinely patch testing with p-phenylenediamine (PPD) 1.0% pet. is safe, owing to the risk of patch test sensitization. Late-appearing patch test reactions may reflect patch test sensitization, but may also be attributable to a low degree of pre-existing sensitization. Objectives: To follow the positive patch test reactions to PPD and its salt PPD dihydrochloride (PPD-DHC) in order to characterize reaction patterns concerning time and dose in PPD-sensitized individuals. Methods: Volunteers with previous reactions to PPD 1.0% were included and patch tested with PPD and PPD-DHC in equimolar dilution series. There were then seven follow-up visits over a period of 28 days. Results: Twenty-six volunteers completed the study, of whom 23 of 26 (88%) reacted to PPD 1.0%, and 69% reacted to PPD 0.32%. Altogether, 42% and 27% reacted to the corresponding equimolar concentrations of PPD-DHC. After day 7, no new reactions were observed to any concentration tested, either of PPD or of PPD-DHC. Conclusion: No late-appearing reactions to PPD or PPD-DHC were observed at any dose. There is a risk of missing contact allergy when the dose is decreased.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Dermatologi och venereologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dermatology and Venereal Diseases (hsv//eng)
Nyckelord
- active sensitization
- allergic contact dermatitis
- contact allergy
- delayed
- dilution series
- false-negative reactions
- hypersensitivity
- late-appearing patch test reactions
- PPD
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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