Document Detail

Occupational allergy to wheat flour. Nasal response to specific inhalative challenge in asthma and rhinitis vs. isolated rhinitis: a comparative study.
MedLine Citation:
PMID:  15852757     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: The purpose of the study was to compare cytological and biochemical changes in nasal lavage fluid induced by wheat flour inhalatory challenge in bakers with allergic rhinitis and with asthma accompanied by rhinitis. MATERIALS AND METHODS: A single-blind, placebo controlled study was conducted in 64 bakers with allergic rhinitis (n = 17), bronchial asthma and rhinitis (n = 24) and without occupational allergy (n = 23). Nasal washings were examined before, 30 min, 4 and 24 h after the specific provocation, wheras non-specific bronchial hyperreactivity (PC20) before and after 24 h. RESULTS: A significant decrease in PC20 after the challenge test was observed only in patients with asthma and rhinitis. Eosinophil count and percentage, basophil count and the permeability index induced by specific provocation were significantly increased in both rhinitis patients and asthmatics. Moreover, the increase especially in total count and proportion of eosinophils as well as in the permeability index was more pronounced in subjects suffering from asthma and rhinitis than in those with rhinitis alone, although the changes were not statistically significant. CONCLUSIONS: The results indicate the applicability of the "nasal pool" technique as a simple diagnostic procedure in flour-induced airway allergy. However, the evaluation of nasal lavage fluid, although a very sensitive and specific method of diagnosing respiratory allergic disease, cannot be used to distinguish patients with upper and lower airway allergy.
Jolanta Walusiak; Marta Wiszniewska; Patrycja Krawczyk-Adamus; Cezary Pałczyński
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of occupational medicine and environmental health     Volume:  17     ISSN:  1232-1087     ISO Abbreviation:  Int J Occup Med Environ Health     Publication Date:  2004  
Date Detail:
Created Date:  2005-04-27     Completed Date:  2005-06-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9437093     Medline TA:  Int J Occup Med Environ Health     Country:  Poland    
Other Details:
Languages:  eng     Pagination:  433-40     Citation Subset:  IM    
Department of Occupational Diseases and Occupational and Environmental Allergy Centre, Nofer Institute of Occupational Medicine, Lódź, Poland.
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MeSH Terms
Air Pollutants, Occupational / adverse effects*
Asthma / diagnosis*,  etiology
Flour / adverse effects*
Immunoglobulin E / blood
Middle Aged
Nasal Lavage Fluid / immunology*
Nasal Provocation Tests
Occupational Exposure / adverse effects*
Rhinitis, Allergic, Perennial / diagnosis*,  etiology
Single-Blind Method
Triticum / adverse effects*
Reg. No./Substance:
0/Air Pollutants, Occupational; 37341-29-0/Immunoglobulin E

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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