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Dermal uptake study...
Dermal uptake study with 4,4'-diphenylmethane diisocyanate led to active sensitization
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- Hamada, Haneen (author)
- 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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- Isaksson, Marléne (author)
- 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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- Bruze, Magnus (author)
- Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups
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- Engfeldt, Malin (author)
- Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups
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- Liljelind, Ingrid (author)
- Umeå University,Umeå universitet,Yrkes- och miljömedicin
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- Axelsson, Sara (author)
- Örebro University
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- Jönsson, Bo A (author)
- Lund University,Lunds universitet,Avdelningen för arbets- och miljömedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Occupational and Environmental Medicine, Lund University,Department of Laboratory Medicine,Faculty of Medicine
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- Tinnerberg, Håkan (author)
- Lund University,Lunds universitet,Avdelningen för arbets- och miljömedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Occupational and Environmental Medicine, Lund University,Department of Laboratory Medicine,Faculty of Medicine
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- Zimerson, Erik (author)
- Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups
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(creator_code:org_t)
- 2011-11-15
- 2012
- English.
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In: Contact Dermatitis. - : John Wiley & Sons. - 0105-1873 .- 1600-0536. ; 66:2, s. 101-105
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Abstract
Subject headings
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- Background. To investigate the dermal uptake of 4,4'-diphenylmethane diisocyanate (4,4'-MDI), a study was performed in which 2 female volunteers were exposed to 10 and 25 mg, respectively, of 4,4'-MDI by applying 2.0% 4,4'-MDI in petrolatum over areas where the surface concentration corresponded to 800 µg/cm(2) . Ten days later, they developed eczematous dermatitis at the area of application. Objectives. To investigate whether the dermal application caused active sensitization to 4,4'-MDI. Methods. Chemical analysis of the 4,4'-MDI preparation used in the application and the amount of 4,4'-MDI not absorbed by the skin was performed with liquid chromatography-mass spectrometry. The volunteers were tested with serial dilutions of 4,4'-MDI and the potentially cross-reacting substances 4,4'-diaminodiphenylmethane (4,4'-MDA), p-phenylenediamine (PPD), and dicyclohexylmethane-4,4'-diisocyanate (DMDI). Results. Patch test results suggested that the volunteers were actively sensitized to 4,4'-MDI following the dermal uptake study, as they reacted positively to 4,4'-MDA, a marker for 4,4'-MDI allergy. No positive reactions were seen to PPD or DMDI. Chemical investigation confirmed that the correct concentration had been used for the dermal uptake study, and showed that about 70% of the applied 4,4'-MDI was not absorbed. Conclusions. A dermal uptake study with 4,4'-MDI in 2.0% pet. with an occlusion time of 8 hr induced active sensitization to 4,4'-MDI and subsequently to 4,4'-MDA.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Arbetsmedicin och miljömedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Occupational Health and Environmental Health (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Dermatologi och venereologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dermatology and Venereal Diseases (hsv//eng)
Keyword
- 4
- 4′-diaminodiphenylmethane
- 4
- 4′-MDI
- dicyclohexylmethane-4
- 4′-diisocyanate
- DMDI
- MDA
- patch test
- polyurethane
- PPD
- p-phenylenediamine
- 4
- 4 '-MDI
- 4 '-diaminodiphenylmethane
- dicyclohexylmethane-4
- '-diisocyanate
- DMDI
- MDA
- patch test
- polyurethane
- PPD
- p-phenylenediamine
Publication and Content Type
- ref (subject category)
- art (subject category)
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