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Updated: May 6, 2026

Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
Published on: June 21, 2018
[Association between beta2-adrenergic receptor haplotype/polymorphisms and asthma phenotype].
1Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Single nucleotide polymorphisms (SNPs) and haplotypes in the beta2-adrenergic receptor (beta2-AR) gene are associated with bronchodilator response and total serum immunoglobulin E (IgE) levels in asthma patients. These genetic variations may influence asthma disease manifestations.
Area of Science:
- Pharmacogenetics
- Respiratory Medicine
- Molecular Biology
Context:
- Asthma is a chronic respiratory disease influenced by genetic and environmental factors.
- The beta2-adrenergic receptor (beta2-AR) plays a crucial role in bronchodilation.
- Genetic variations in the beta2-AR gene may impact asthma severity and treatment response.
Purpose:
- To investigate the association between single nucleotide polymorphisms (SNPs) and haplotypes of the beta2-adrenergic receptor (beta2-AR) gene and bronchodilator response.
- To analyze the relationship between beta2-AR gene polymorphisms/haplotypes and total serum immunoglobulin E (IgE) levels in asthma patients.
Summary:
- This study analyzed five SNPs and haplotypes of the beta2-AR gene in 201 asthma patients and 276 controls.
- Specific beta2-AR genotypes (Arg16Arg16) and haplotypes (Arg16Gln27/Arg16Gln27) were significantly associated with enhanced bronchodilator response.
- The Gln27Gln27 genotype and certain haplotypes were linked to altered total serum IgE levels.
Impact:
- Identifies specific beta2-AR genetic variants that influence bronchodilator responsiveness in asthma.
- Suggests that beta2-AR gene polymorphisms and haplotypes may serve as biomarkers for predicting treatment outcomes in asthma.
- Highlights the role of pharmacogenetics in personalizing asthma management strategies.
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