Occupational Asthma Reference

Eire MÁ, Pineda F, Losada SV, de la Cuesta CG, Villalva MM, Occupational Rhinitis and Asthma due to Cedroarana (Cedrelinga catenaeformis Ducke) Wood Dust Allergy, J Inv Allergod Clin Immunol, 2006;16:385-387,
(Plain text: Eire MA, Pineda F, Losada SV, de la Cuesta CG, Villalva MM, Occupational Rhinitis and Asthma due to Cedroarana (Cedrelinga catenaeformis Ducke) Wood Dust Allergy, J Inv Allergod Clin Immunol)

Keywords: New cause, carpenter, spain, wood, cedroarana, (Cedrelinga catenaeformis Ducke), nasal challenge, IgE

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Abstract

We describe a case of occupational rhinitis and asthma in a 46-year-old carpenter who presented nasal and bronchial symptoms after cedrorana (Cedrelinga catenaeformis Ducke) wood dust exposure. Skin prick tests with a battery of common allergens and different kinds of wood, were positive to cedrorana and grass pollen and negative to the other wood extracts. Nasal provocation and exposure challenge tests with Cedrorana wood dust also gave a positive reaction. IgE-immunoblotting showed two bands of 45 and 78 kDa
respectively. This is the first reported case of occupational rhinitis and asthma due to Cedrorana wood dust where an IgE mediated mechanism has been found.

Resumen. Describimos un caso de rinitis y asma ocupacional en un carpintero de 46 años de edad que presentaba síntomas nasales y bronquiales tras la exposición al polvo de madera de Cedrorana (Cedrelinga catenaeformis
Ducke). Las pruebas cutáneas, mediante prick-test, con una batería de alérgenos comunes y distintos extractos de madera,fueron positivas frente al extracto de Cedrorana y al polen de gramíneas, siendo negativas para el resto de las maderas. La provocación nasal y el test de exposición con el polvo de madera de Cedrorana fueron positivos. El Inmunoblotting reveló dos bandas de 45 y 78 kDa respectivamente. Este es el primer caso descrito de rinitis y asma ocupacional debido al polvo de madera de Cedrorana, donde se ha encontrado un mecanismo mediado por IgE.

Plain text: We describe a case of occupational rhinitis and asthma in a 46-year-old carpenter who presented nasal and bronchial symptoms after cedrorana (Cedrelinga catenaeformis Ducke) wood dust exposure. Skin prick tests with a battery of common allergens and different kinds of wood, were positive to cedrorana and grass pollen and negative to the other wood extracts. Nasal provocation and exposure challenge tests with Cedrorana wood dust also gave a positive reaction. IgE-immunoblotting showed two bands of 45 and 78 kDa respectively. This is the first reported case of occupational rhinitis and asthma due to Cedrorana wood dust where an IgE mediated mechanism has been found. Resumen. Describimos un caso de rinitis y asma ocupacional en un carpintero de 46 anos de edad que presentaba sintomas nasales y bronquiales tras la exposicion al polvo de madera de Cedrorana (Cedrelinga catenaeformis Ducke). Las pruebas cutaneas, mediante prick-test, con una bateria de alergenos comunes y distintos extractos de madera,fueron positivas frente al extracto de Cedrorana y al polen de gramineas, siendo negativas para el resto de las maderas. La provocacion nasal y el test de exposicion con el polvo de madera de Cedrorana fueron positivos. El Inmunoblotting revelo dos bandas de 45 y 78 kDa respectivamente. Este es el primer caso descrito de rinitis y asma ocupacional debido al polvo de madera de Cedrorana, donde se ha encontrado un mecanismo mediado por IgE.

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