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Allergic rhinitis and polymorphisms of the interleukin 1 gene complex.

Authors: Joki-Erkkila, VP  Karjalainen, J  Hulkkonen, J  Pessi, T  Nieminen, MM  Aromaa, A  Klaukka, T  Hurme, M 
Citation: Joki-Erkkila VP, etal., Ann Allergy Asthma Immunol. 2003 Sep;91(3):275-9.
Pubmed: (View Article at PubMed) PMID:14533660
DOI: Full-text: DOI:10.1016/S1081-1206(10)63530-2

BACKGROUND: Allergic rhinitis is a chronic inflammatory disease with a genetic background. Inflammatory reactions are regulated by cytokines. Cytokine genes are polymorphic and have been implicated as candidate genes in allergy. OBJECTIVES: To study the significance of the interleukin 1 (IL-1) gene complex in allergic rhinitis. METHODS: Population-based, cross-sectional study. We studied the polymorphisms of 3 IL-1 gene complex genes, IL1A (+4845G>T), IL1B (-511 degrees C>T), and IL1RN (variable number of tandem repeats; IVS2, 86 bp, duplicates 2 to 5), in patients with allergic rhinitis. The study group consisted of 405 nonasthmatic individuals of whom 56 had allergic rhinitis. RESULTS: The genotype distribution differed significantly in all cytokine genes studied between subjects with and without allergic rhinitis. The difference was mainly due to an increased number of IL1A allele G homozygotes (67.9% vs 43.2%; odds ratio [OR], 2.8; 95% confidence interval [CI], 1.5-5.1), IL1B heterozygotes (72.2% vs 47.4%; OR, 2.8; 95% CI, 1.5-5.3), and IL1RN allele 2 homozygotes (18.5% vs 7.5%; OR, 2.8; 95% CI, 1.3-6.2) in allergic rhinitis. Haplotype analysis revealed a significant difference in the distribution of IL-1 gene complex haplotypes between subjects with and without allergic rhinitis (P = 0.005, 10 df). CONCLUSIONS: The IL-1 gene complex polymorphism is strongly associated with allergic rhinitis in nonasthmatic individuals.

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CRRD Object Information
CRRD ID: 4142859
Created: 2010-09-14
Species: All species
Last Modified: 2010-09-14
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.