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Chromium(III) release from chromium-tanned leather elicits allergic contact dermatitis: a use test study.
2018 (English)In: Contact Dermatitis, ISSN 0105-1873, E-ISSN 1600-0536, Vol. 78, no 5, p. 307-314Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Chromium (Cr) is a common skin sensitizer. The use of Cr(VI) in leather is restricted in the EU, but that of Cr(III) is not.

OBJECTIVES: To assess whether prolonged exposure to Cr-tanned leather with mainly Cr(III) release may elicit allergic contact dermatitis in Cr-allergic individuals.

METHOD: Ten Cr-allergic subjects and 22 controls were patch tested with serial dilutions of Cr(III) and Cr(VI), and with leather samples. They then conducted a use test with a Cr-tanned and a Cr-free leather bracelet over a period of 3 weeks, for 12 h per day. Cr deposited on the skin from the bracelets was measured in the controls, and the diphenylcarbazide test for Cr(VI) and extraction tests for Cr(III) and Cr(VI) were conducted for the different leathers.

RESULTS: Four of 10 Cr-allergic subjects developed positive reactions to the Cr-tanned bracelet within 7-21 days, whereas only 1 of 10 had a positive patch test reaction to this leather. Cr released from the Cr-tanned leather was most probably entirely Cr(III), with a quantifiable amount being deposited on the skin.

CONCLUSIONS: This study strongly suggests that prolonged and repeated exposure to Cr-tanned leather with mainly Cr(III) release is capable of eliciting allergic contact dermatitis in Cr-allergic individuals.

Place, publisher, year, edition, pages
2018. Vol. 78, no 5, p. 307-314
Keyword [en]
allergic contact dermatitis, chromium, leather, skin exposure assessment, use test
National Category
Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:kth:diva-225955DOI: 10.1111/cod.12946PubMedID: 29322530OAI: oai:DiVA.org:kth-225955DiVA, id: diva2:1196885
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare
Available from: 2018-04-11 Created: 2018-04-11 Last updated: 2018-04-11

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Hedberg, Yolanda

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