Occupational Asthma Reference

Alday E, Gómez M, Ojeda P, Caballero ML, Moneo I, IgE-mediated asthma associated with a unique allergen from Angelim pedra (Hymenolobium petraeum) wood, J Allergy Clin Immunol, 2005;115:624-635,
(Plain text: Alday E, Gomez M, Ojeda P, Caballero ML, Moneo I, IgE-mediated asthma associated with a unique allergen from Angelim pedra (Hymenolobium petraeum) wood, J Allergy Clin Immunol)

Keywords: new cause, wood, carpenter, angelim, spain

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Abstract

Exposure to sawdust from a variety of woods has been shown to cause occupational asthma and contact urticaria, according to published scientific reports.2, 3

The following is a description of a case of occupational asthma caused by Angelim pedra in a 38-year-old male carpenter who was asymptomatic when harvesting Angelim pedra wood in Brazil for 20 years. He has lived in Spain since 1998. In 2000, he began to have cough, rhinorrhea, wheezing, dyspnea, and ocular itching within a few minutes of each new exposure on initating new work with this imported wood in Spain in 1999. He reported no symptoms with other woods.

Skin prick tests were performed by using the extracts of a variety of wood sawdust (iroko, mansonia, oak, cedar, pine, teak, obeche), which were extracted (10% wt/vol) in PBS and shaken for 24 hours at room temperature. The suspension was centrifuged at 8000 rpm for 30 minutes, the pellet was discarded, and the remaining solution was filtered through a 0.22-µm pore size membrane. All skin tests with extracts of various kinds of woods were tested in 3 atopic and nonatopic unexposed carpenters.

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