Airborne olive pollen counts are not representative of exposure to the major olive allergen Ole e 1
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Date
2013-06
Authors
Galan, Carmen
Antunes, Celia M.
Brandao, R.
Serrato, Carmen Torres
Mozo, Hermínia García
Caeiro, Elsa
Ferro, Raquel
Prank, Marje
Sofiev, Mikhail
Albertini, Roberto
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Abstract
Pollen is routinely monitored, but it is unknown whether pollen counts represent allergen exposure. We therefore simultaneously determined olive pollen and Ole e 1 in ambient air in Cordoba, Spain, and Evora, Portugal, using Hirst-type traps for pollen and high-volume cascade impactors for allergen. Pollen from different days released 12-fold different amounts of Ole e 1 per pollen (both locations P<0.001). Average allergen release from pollen (pollen potency) was much higher in Cordoba (3.9pg Ole e 1/pollen) than in Evora (0.8pg Ole e 1/pollen, P=0.004). Indeed, yearly olive pollen counts in Cordoba were 2.4 times higher than in Evora, but Ole e 1 concentrations were 7.6 times higher. When modeling the origin of the pollen, >40% of Ole e 1 exposure in Evora was explained by high-potency pollen originating from the south of Spain. Thus, olive pollen can vary substantially in allergen release, even though they are morphologically identical.
Description
Keywords
Allergy, Immunology, Enzyme-linked immunosorbent assay, Hialine, Model, Europaea pollen, Birch pollen, Ole-e-1
Citation
Galan, C. vd. (2011). "Airborne olive pollen counts are not representative of exposure to the major olive allergen Ole e 1". Allergy, 68(6), 809-812.