Differences in atmospheric emissions of Poaceae pollen and Lol p 1 allergen

  • Delia Fernández-González /
  • F. Javier Rodriguez Rajo /
  • Zulima González Parrado /
  • Rosa M Valencia Barrera /
  • Victoria Jato /
  • Stella Moreno Grau
Journal ar
  • Volumen: 27
  • Número: 4
  • Fecha: 01 December 2011
  • Páginas: 301-309
  • ISSN: 03935965 15733025
  • Source Type: Journal
  • DOI: 10.1007/s10453-011-9199-x
  • Document Type: Article
The allergens of different grass species share similar physicochemical and immunological features that account for the high incidence of allergenic cross-reactivity. We aimed to gain more information on the correlation between Poaceae airborne pollen and allergen concentration and hence make a reliable assessment of true pollen exposure in different bioclimatic areas. The release of Lol p 1 allergen from grass pollen differs between years and areas depending on variables like meteorological factors, biological sources, and cross-reactions with homologous allergens. This study monitored airborne pollen concentrations of grasses and Lol p 1 aeroallergen in León and Ourense, two cities with different climatic conditions located in northwestern Spain. Lol p 1 content in aerosol samples was quantified using specific ELISA antibody plates. Some our results show that Lol p 1 concentration increases when the atmospheric relative humidity is below 70%. This could explain the appearance of protein peaks at times when little or no grass pollen is present, especially after a short and heavy storm. © 2011 Springer Science+Business Media B.V.

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