| Olea europaea pollen counts and aeroallergen levels predict clinical symptoms in patients allergic to olive pollen. | |
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MedLine Citation:
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PMID: 21277516 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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BACKGROUND: Allergic symptoms are commonly related to atmospheric pollen counts in sensitized allergic individuals. However, concordance between symptoms, pollen counts, and aeroallergen concentrations is not always good. OBJECTIVES: To determine the correlation between olive pollen counts, aeroallergen levels, and clinical symptoms in patients with allergic asthma or rhinitis in Ciudad Real (Spain). METHODS: Two types of samplers were used to determine pollen exposure: a Burkard spore trap to collect pollen grains and a high-volume air sampler to collect airborne particles. A total of 366 air filters were collected. After extraction, they were analyzed by specific immunoglobulin E enzyme-linked immunosorbent assay inhibition using a serum pool containing high titers of olive-specific immunoglobulin E. Twenty olive-pollen monosensitized patients were asked to record their daily symptoms before, during, and after the olive pollen season. RESULTS: Olive pollen was detected between April 21 and June 30, 2004. Symptoms showed positive and significant correlations with pollen counts (r = 0.700, P < .001) and aeroallergen levels (r = 0.803, P < .001). Using a Poisson regression model, relative changes in aeroallergen concentrations and pollen counts were found to be similar and significant. Threshold levels for the induction of symptoms were 162 olive pollen grains/m(3) and 22.7 ng of olive pollen allergen/m(3) (equivalent to 0.9 ng/m(3) of Ole e 1). CONCLUSIONS: Olive aeroallergen concentrations and pollen counts are positively associated with symptoms of rhinitis and asthma in olive-allergic patients. Both data may be used in the clinical follow-up of these patients. |
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Authors:
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Francisco Feo Brito; Pilar Mur Gimeno; Jerónimo Carnés; Raúl Martín; Enrique Fernández-Caldas; Pilar Lara; Jesús López-Fidalgo; Francisco Guerra |
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Publication Detail:
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Type: Journal Article Date: 2011-01-08 |
Journal Detail:
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Title: Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology Volume: 106 ISSN: 1534-4436 ISO Abbreviation: Ann. Allergy Asthma Immunol. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9503580 Medline TA: Ann Allergy Asthma Immunol Country: United States |
Other Details:
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Languages: eng Pagination: 146-52 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 American College of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Allergy Section, General Hospital, Ciudad Real, Spain. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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