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Bronchial hyperresponsiveness in seasonal allergic rhinitis patients is associated with increased IL-18 during natural pollen exposure.
MedLine Citation:
PMID:  22819246     Owner:  NLM     Status:  Publisher    
BACKGROUND: The mechanism of bronchial hyperresponsiveness (BHR) is not certain in seasonal allergic rhinitis (SAR) patients. OBJECTIVE: We aimed to investigate the effects of natural pollen exposure on IL-18 and its relationship with BHR. METHODS: Thirty-two SAR patients with grass pollen sensitivity, 14 nonallergic rhinitis (NAR) patients and 17 normal-controls were included. Sixteen SAR patients had BHR during pollen season and off-season. Serum IL-18 levels were measured in SAR patients during pollen season between May-August and off-season between November-February. IL-18 levels were measured in NAR patients and normal controls once. RESULTS: During pollen season, SAR patients with BHR had significantly increased levels of IL-18 than those without BHR (279.2±161.1 versus 145.3±101.0pg/ml, p=0.012). Serum IL-18 levels were not different between SAR patients with and without BHR during off-season (233.8±139.7 versus 183.2±162.9pg/ml, p=0.16). Serum IL-18 levels in SAR patients during pollen season (212.3±148.8pg/ml) and off-season (208.5±151.5pg/ml) were not different than those NAR patients (224.8±180.1pg/ml, p=0.98 and p=1.0, respectively) and normal controls (174.8±76.0pg/ml, p=0.60 and p=0.76, respectively). CONCLUSION: The results suggested us that BHR in SAR patients is associated with increased IL-18 during natural pollen exposure.
Emel Kurt; Kurtuluş Aksu; Ali Dokumacioglu; Ozkan Alatas
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-20
Journal Detail:
Title:  Cytokine     Volume:  -     ISSN:  1096-0023     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9005353     Medline TA:  Cytokine     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Departments of Allergy, Faculty of Medicine, Eskisehir Osmangazi University, Turkey.
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