PMID- 10520086 OWN - NLM STAT- MEDLINE DCOM- 19991210 LR - 20190831 IS - 0954-7894 (Print) IS - 0954-7894 (Linking) VI - 29 IP - 11 DP - 1999 Nov TI - Association of FcepsilonR1-beta polymorphisms with asthma and associated traits in Australian asthmatic families. PG - 1555-62 AB - BACKGROUND: Asthma is a genetically complex disease, and is characterized by elevated serum immunoglobulin E (IgE) levels, elevated blood eosinophil counts and increased airway responsiveness. Polymorphisms in the beta subunit of the high affinity receptor for IgE (FcepsilonR1-beta) have been previously associated with these phenotypes and with an increased risk of asthma. OBJECTIVE: To investigate the association of all known bi-allelic polymorphisms in FcepsilonR1-beta to asthma and quantitative traits associated with asthma in a selected sample of Australian asthmatic children and their nuclear families. METHODS: Australian Caucasian nuclear families (n = 134 subjects) were recruited on the basis of a child proband with current, severe, symptomatic asthma. The quantitative traits assessed included serum levels of total IgE and specific IgE to house dust mite and mixed grass, blood eosinophil counts and the dose-response slope of the forced expiratory volume in 1 s to histamine provocation. RESULTS: Neither the Leu181 nor the E237G mutations were detected in this population. Allele B of RsaI intron 2 (RsaI_in2*B) was significantly associated with physician-diagnosed asthma (ever) (P = 0.002). Alleles of both the RsaI_in2 and RsaI exon 7 (RsaI_ex7) polymorphisms were significantly associated with loge total serum IgE levels and the combined RAST index. RsaI_ex7 was also associated with loge blood eosinophil counts. These associations were independent of age, sex and familial correlations. CONCLUSION: This study supports a role for the FcepsilonR1-beta gene or a nearby gene in the pathogenesis of asthma. FAU - Palmer, L J AU - Palmer LJ AD - Department of Paediatrics, University of Western Australia, Perth, Australia. FAU - Rye, P J AU - Rye PJ FAU - Gibson, N A AU - Gibson NA FAU - Moffatt, M F AU - Moffatt MF FAU - Goldblatt, J AU - Goldblatt J FAU - Burton, P R AU - Burton PR FAU - Cookson, W O AU - Cookson WO FAU - Lesouef, P N AU - Lesouef PN LA - eng GR - Wellcome Trust/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Clin Exp Allergy JT - Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology JID - 8906443 RN - 0 (Receptors, IgE) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adolescent MH - Adult MH - Asthma/*genetics/physiopathology MH - Australia MH - Blood Cell Count MH - Bronchial Hyperreactivity MH - Child MH - Eosinophils MH - Humans MH - Immunoglobulin E/blood MH - *Polymorphism, Genetic MH - Radioallergosorbent Test MH - Receptors, IgE/*genetics EDAT- 1999/10/16 00:00 MHDA- 1999/10/16 00:01 CRDT- 1999/10/16 00:00 PHST- 1999/10/16 00:00 [pubmed] PHST- 1999/10/16 00:01 [medline] PHST- 1999/10/16 00:00 [entrez] AID - cea718 [pii] AID - 10.1046/j.1365-2222.1999.00718.x [doi] PST - ppublish SO - Clin Exp Allergy. 1999 Nov;29(11):1555-62. doi: 10.1046/j.1365-2222.1999.00718.x.