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Cross-sensitizations between azo dyes and para-amino compound
- Source :
- Contact Dermatitis. 36:91-96
- Publication Year :
- 1997
- Publisher :
- Wiley, 1997.
-
Abstract
- Combined sensitizations to different azo dyes, probably based both on true cross-sensitization and on simultaneous positive reactions, have frequently been described. However, since azo dyes are included in the standard series in a minority of countries, the case studies considered comprise, with few exceptions, a small number of subjects. The aim of our study was to investigate cross-reactions between different azo dyes and para-amino compounds in azo-dye-sensitive subjects, to study the clinical aspects of azo dye dermatitis, to assess the relevance of sensitization to azo dyes, and to relate the pattern of cross-sensitizations to the chemical structure of the different dyes. Out of 6203 consecutively tested patients, 236 were sensitized to at least 1 of 6 azo compounds employed as textile dyes, included in our standard series. 107 subjects reacted to Disperse Orange 3 (DO3), 104 to Disperse Blue 124 (DB124), 76 to p-aminoazobenzene (PAB), 67 to Disperse Red 1 (DR1), 42 to Disperse Yellow 3 (DY3), and 31 to p-dimethylaminoazobenzene (PDAAB). Co-sensitizations to para-phenylenediamine were present in most subjects sensitized to DO3 (66%) and PAAB (75%), in 27% and 36% of DR1 and DY3-sensitive subjects, and only in 16% of subjects sensitized to DB124. Apart from the hands and the face, the neck and the axillae were the most frequently involved skin sites. Whereas the involvement of flexural areas was mainly connected with sensitization to DB124, in patients with hand dermatitis and in those working as hairdressers, sensitization to DO3 and PAAB was more frequent. Moreover, in the former patient group, a history of textile dye allergy was most frequently obtained. Out of 33 patients tested with an additional textile dye series, only 5 subjects reacted to anthraquinone dyes. Cross-sensitizations between azo dyes and para-amino compounds can partially be explained on the basis of structural affinities.
- Subjects :
- azo dyes
Compound a
Tertiary amine
azo-dye-sensitive subjects
Dermatology
Cross Reactions
Anthraquinone
Medicinal chemistry
p-Dimethylaminoazobenzene
chemistry.chemical_compound
medicine
Humans
Immunology and Allergy
Organic chemistry
Coloring Agents
Allergic contact dermatitis
Sensitization
Azo compound
Textiles
Patch Tests
medicine.disease
Cross-sensitization
para-amino compound
medicine.anatomical_structure
Dermatitis, Occupational
chemistry
P-Aminoazobenzene
p-Aminoazobenzene
Dermatitis, Allergic Contact
Azo Compounds
Contact dermatitis
Subjects
Details
- ISSN :
- 01051873
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- Contact Dermatitis
- Accession number :
- edsair.doi.dedup.....27c0e98cf159a4b4dc753708ecc3a3f9