Short communication: An occupational respiratory allergy caused by Sinapis alba pollen in olive farmers
Article first published online: 12 MAR 2007
Volume 62, Issue 4, pages 447–450, April 2007
How to Cite
Anguita, J. L., Palacios, L., Ruiz-Valenzuela, L., Bartolomé, B., López-Urbano, Ma. J., Sáenz de San Pedro, B., Cano, E. and Quiralte, J. (2007), Short communication: An occupational respiratory allergy caused by Sinapis alba pollen in olive farmers. Allergy, 62: 447–450. doi: 10.1111/j.1398-9995.2006.01306.x
- Issue published online: 12 MAR 2007
- Article first published online: 12 MAR 2007
- Accepted for publication 27 November 2006
- bronchial asthma;
- occupational respiratory allergy;
- olive farmers;
- Sinapis alba pollen
Background: Sinapis alba (white mustard) is a entomophilic species included in the Brassicaceae family. To date it has not been related to allergic sensitization or clinical respiratory disease.
Methods: Twelve olive orchard workers had a history of rhinitis and/or bronchial asthma that occurred during control weed management and/or harvest, from January to March. They underwent skin prick tests (SPT) with S. alba pollen extract and a standard battery of aeroallergens. Sinapis alba pollen extract was prepared for performing quantitative skin tests, enzyme allergosorbent test and nasal challenge test (NCT). A portable monitoring station and an urban volumetric Hirst-type spore trap were used for the aerobiological study.
Results: Eleven patients suffered from rhinitis and bronchial asthma and one had only from rhinitis. All patients were sensitized to S. alba pollen extract, and they showed a positive NCT response. In the urban aerobiologic monitoring station the amount of S. alba pollen only exceptionally reached peaks of 21 grains/m3, whereas in the work environment peaks of 1801 grains/m3 were detected between 15 February and 7 April.
Conclusions: We demonstrate the existence of a new occupational allergen for olive farmers: S. alba pollen. We point out the importance of perform aerobiological sampling within the occupational environment for the detection and quantification of the allergenic source.