Grass-pollen allergen carried by the smaller micronic aerosol fraction

Spieksma, F. Th. M.; Kramps, J. A.; Plomp, A.; Koerten, H. K.

doi:10.1080/00173139109427779

Cited by 15 publications

(9 citation statements)

References 9 publications

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“…In 2007, airborne Lol p 1 allergens showed a similar dynamic to that described in previous years. However, as suggested by Spieksma et al [9,32], Schäppi et al [33], Spieksma and Nikkels [34] and Cabrera et al [35], our results confirm that pollen and allergenic activity have parallel dynamics during the period of maximum pollination, as reflected in the positive correlations for the 2 variables (table 3). The high values of airborne allergen obtained are similar to those obtained by the other authors with peak values reaching 13,000 ng [12,31,36].…”

Section: Discussionsupporting

confidence: 80%

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Airborne Study of Grass Allergen (Lol p 1) in Different-Sized Particles

Linares

Guardia

Nieto‐Lugilde

et al. 2009

Int Arch Allergy Immunol

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Background: The Poaceae family is considered one of the main causes of pollen allergy in industrialized countries. The aim of this study is to establish the dynamics of the Poaceae allergens and determine their distribution in the different-sized particles in the atmosphere. Methods: The air of Granada (southern Spain) was sampled during the pollination period of Poaceae using a cascade impactor and a Hirst-type volumetric collector simultaneously. The sampled airborne allergens were analyzed by indirect ELISA and field emission scanning electron microscopy. Airborne pollen was evaluated with the Spanish Aerobiological Network methodology. Results:Poaceae pollen and allergenic activity have parallel dynamics during the period of maximum pollination, which is reflected in the positive correlations between the 2 variables. In addition, the highest Lol p 1 concentrations were recorded in particle sizes lower than 3.3 µm (stage 4-F). The Spearman correlation test showed that airborne allergens are not dependent on meteorological factors, such as humidity, wind direction or sunshine, however, Lol p 1 allergen correlated positively with Poaceae pollen. Conclusions: The results of the present study confirm that the Lol p 1 allergen is detected more frequently with pollutants than with coarse particles with similar dynamics and a positive correlation between airborne pollen and aeroallergens. Moreover, Lol p 1 is released in stable weather conditions without large changes in humidity or temperature.

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Section: Discussionsupporting

confidence: 80%

“…Spieksma et al [32] attributed this phenomenon to the collection methods, which may induce high concentrations if the pollen ruptures during collection. However, our analysis is consistent with the findings of Solomon et al [48] and De Linares et al [10], who found no fractured pollen in the filters, based on an MEB analysis.…”

Section: Discussionmentioning

confidence: 99%

Airborne Study of Grass Allergen (Lol p 1) in Different-Sized Particles

Linares

Guardia

Nieto‐Lugilde

et al. 2009

Int Arch Allergy Immunol

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“…The control is easiest in the buildings with mechanical exhaust and supply ventilation, commonly used in Nordic countries. However, some plant allergens (e.g., grass and birch allergen) are present substantially in particles smaller than 1 lm (e.g., Spieksma et al 1990Spieksma et al , 1991Rantio-Lehtimaki et al 1994;Schappi et al 1997).…”

Section: Pollenmentioning

confidence: 99%

Summary of human responses to ventilation

Seppänen¹,

2004

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“…Recording of atmospheric concentrations of pollen from various species is regularly performed at a number of stations in Sweden, for allergy-service purposes. The allergenicity of pollen grains from birch and grasses, being the main sources for the development of pollinosis in Northwest Europe, is related to their properties to generate small proteincontaining particles (Spieksma et al 1990(Spieksma et al , 1991Pehkonen & Rantio-Lehtimä ki 1994, Yli-Panula 1997. These are released from the pollen grains in contact with water under different meteorological conditions and can give very heterogeneous mixtures of submicronic respirable particles (Suphioglu et al 1992, Schä ppi et al 1997.…”

mentioning

confidence: 99%

Airborne birch and oak pollen grains and birch pollen allergens at a common sampling station in Stockholm

Holmquist¹,

Ekebom²,

Kübler³

et al. 2005

Grana

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O. 2005. Airborne birch and oak pollen grains and birch pollen allergens at a common sampling station in Stockholm. -Grana 44: 104-107. ISSN 0017-3134.In the present study, the airborne concentrations of birch and oak pollen grains and birch pollen allergens have been recorded in samples from a common sampling station in Stockholm. The sampling period was between April 22 nd and May 31 st 2003. The objectives were to evaluate if analysis of allergen particles in parallel with pollen grains would be relevant to aid subjects suffering from pollinosis. Days with low birch pollen counts had relatively high nominal allergen concentrations in the beginning of the sampling period. The birch pollen grain concentration peaks, during the dry pollination culmination interval in the middle of the period, were associated with correspondingly lower nominal concentrations of allergens than grains. At the end of the sampling period very high nominal amounts of allergen appeared, as reflected by high concentrations of oak pollen grains. The high allergen concentrations were obtained as a result of inherent cross-reactivity of anti-Bet v 1 antibodies with Que a antigens, which are immunologically analogous with Bet v 1. Allergen concentrations increased and decreased after light and heavy rain, respectively. Results obtained indicate that adding a pollen count forecast with allergen concentration data should aid pollen allergic subjects to avoid particulate allergens which might be expected to penetrate more easily than pollen grains into indoor environments.

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Grass-pollen allergen carried by the smaller micronic aerosol fraction

Cited by 15 publications

References 9 publications

Airborne Study of Grass Allergen (Lol p 1) in Different-Sized Particles

Airborne Study of Grass Allergen (Lol p 1) in Different-Sized Particles

Summary of human responses to ventilation

Airborne birch and oak pollen grains and birch pollen allergens at a common sampling station in Stockholm

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