Details
- Autor(en) / Beteiligte
- Titel
- Genome-wide association study of smoking behaviours in patients with COPD
- Ist Teil von
- Thorax, 2011-10, Vol.66 (10), p.894-902
- Ort / Verlag
- London: BMJ Publishing Group
- Erscheinungsjahr
- 2011
- Link zum Volltext
- Quelle
- EZB-NALGM-00452 BMJ Journals Archive NL
- Beschreibungen/Notizen
- BackgroundCigarette smoking is a major risk factor for chronic obstructive pulmonary disease (COPD) and COPD severity. Previous genome-wide association studies (GWAS) have identified numerous single nucleotide polymorphisms (SNPs) associated with the number of cigarettes smoked per day (CPD) and a dopamine beta-hydroxylase (DBH) locus associated with smoking cessation in multiple populations.ObjectiveTo identify SNPs associated with lifetime average and current CPD, age at smoking initiation, and smoking cessation in patients with COPD.MethodsGWAS were conducted in four independent cohorts encompassing 3441 ever-smoking patients with COPD (Global Initiative for Obstructive Lung Disease stage II or higher). Untyped SNPs were imputed using the HapMap (phase II) panel. Results from all cohorts were meta-analysed.ResultsSeveral SNPs near the HLA region on chromosome 6p21 and in an intergenic region on chromosome 2q21 showed associations with age at smoking initiation, both with the lowest p=2×10−7. No SNPs were associated with lifetime average CPD, current CPD or smoking cessation with p<10−6. Nominally significant associations with candidate SNPs within cholinergic receptors, nicotinic, alpha 3/5 (CHRNA3/CHRNA5; eg, p=0.00011 for SNP rs1051730) and cytochrome P450, family 2, subfamily A, polypeptide 6 (CYP2A6; eg, p=2.78×10−5 for a non-synonymous SNP rs1801272) regions were observed for lifetime average CPD, however only CYP2A6 showed evidence of significant association with current CPD. A candidate SNP (rs3025343) in DBH was significantly (p=0.015) associated with smoking cessation.ConclusionThe authors identified two candidate regions associated with age at smoking initiation in patients with COPD. Associations of CHRNA3/CHRNA5 and CYP2A6 loci with CPD and DBH with smoking cessation are also likely of importance in the smoking behaviours of patients with COPD.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0040-6376eISSN: 1468-3296DOI: 10.1136/thoraxjnl-2011-200154Titel-ID: cdi_proquest_miscellaneous_900774744
- Format
- –
- Schlagworte
- Acetylcholine receptors, Age, Age Factors, Aged, Aryl Hydrocarbon Hydroxylases - genetics, Aryl Hydrocarbon Hydroxylases - metabolism, Behavior, Biological and medical sciences, Cardiology. Vascular system, chromosome 2, chromosome 6, Chromosomes, Chronic obstructive pulmonary disease, Chronic obstructive pulmonary disease, asthma, Cigarette smoking, Cytochrome P-450 CYP2A6, Cytochrome P450, Disease, DNA - genetics, Dopamine beta -monooxygenase, Dopamine beta-Hydroxylase - genetics, Dopamine beta-Hydroxylase - metabolism, Drug addiction, Female, Genetic Predisposition to Disease, Genome-Wide Association Study - methods, Genomes, Genotype, Genotype & phenotype, Health risk assessment, Histocompatibility antigen HLA, Humans, Incidence, Male, Medical sciences, Middle Aged, Mortality, Nicotine, Obstructive lung disease, Pneumology, Polymorphism, Single Nucleotide, Pulmonary Disease, Chronic Obstructive - epidemiology, Pulmonary Disease, Chronic Obstructive - genetics, Pulmonary Disease, Chronic Obstructive - metabolism, Risk factors, Single-nucleotide polymorphism, Smoking, Smoking - epidemiology, Smoking - genetics, Smoking - metabolism, Smoking Cessation, Tobacco, tobacco smoking, Toxicology, United States - epidemiology