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2-adrenergic receptor polymorphisms are associated with asthma and COPD in adults


Matheson, MC and Ellis, JA and Raven, J and Johns, DP and Walters, EH and Abramson, MJ, a2-adrenergic receptor polymorphisms are associated with asthma and COPD in adults, Journal of Human Genetics, 51, (11) pp. 943-951. ISSN 1434-5161 (2006) [Refereed Article]

DOI: doi:10.1007/s10038-006-0043-z


The β 2-adrenergic receptor (β 2AR) is a transmembrane protein expressed by airway smooth muscle cells. In vitro studies have shown that polymorphisms at amino acid positions 16 and 27 alter receptor function. The aim of this study was to examine the associations between the β 2AR polymorphisms and risks of asthma, chronic obstructive pulmonary disease (COPD) and respiratory symptoms in a sample of adults. Participants were part of a cross-sectional population-based study of risk factors for respiratory disease. A total of 1,090 Caucasian participants completed a detailed respiratory questionnaire, spirometry, methacholine challenge and measurement of gas transfer. Genotyping for β 2AR polymorphisms at positions 16 and 27 was performed using the tetra-primer amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) method. Haplotype frequencies for the two polymorphisms were estimated using the E-M algorithm. We found the Arg16 homozygotes had an increased risk of COPD (OR 5.13; 95% CI 1.40,18.8), asthma (2.44; 1.12,5.31) and symptoms of wheeze (1.84; 1.02,3.35). The Gln27 homozygotes had an increased risk of asthma (2.08; 1.05,4.13) and bronchial hyperreactivity (BHR) (1.92; 1.07,3.46). The Arg16/Gln27 haplotype was associated with asthma (1.63; 1.12,2.38) and COPD (2.91; 1.42,5.94). The Arg16/Gln27 β 2AR haplotype is important in COPD, asthma and BHR, and may be associated with more severe respiratory symptoms in middle-aged and older adults. © 2006 The Japan Society of Human Genetics and Springer-Verlag.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Cardiovascular medicine and haematology
Research Field:Respiratory diseases
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Johns, DP (Associate Professor David Johns)
UTAS Author:Walters, EH (Professor Haydn Walters)
ID Code:41568
Year Published:2006
Web of Science® Times Cited:40
Deposited By:Medicine
Deposited On:2006-08-01
Last Modified:2007-03-21

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