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- Eriksson, Berne, et al.
(författare)
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Association of heart diseases with COPD and restrictive lung function - Results from a population survey
- 2013
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Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 107:1, s. 98-106
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Few studies have explored the association of COPD, based on GOLD definition, with heart diseases. The relationship between restrictive lung function impairment and heart diseases is still poorly studied on a population level. Objectives: To explore the association of COPD and restrictive lung function impairment, respectively, with heart diseases in the general population. Design: This is a cross-sectional study of 642 randomly selected 22- to 72-year-old subjects in northern Sweden. COPD was defined according to GOLD. Restrictive lung function was defined as pre-bronchodilator FVC <80% of predicted value and FEV1/FVC >= 0.7. Results: The prevalence of ischemic heart disease was 4% in subjects with normal spirometry, 13% in subjects with COPD, and 21% in those with restrictive lung function. The prevalence of heart diseases increased with COPD severity. On the other hand, the prevalence of COPD was particularly high in the group reporting myocardial infarction. In subjects reporting different heart diseases, the prevalence of restrictive lung function was high. In multivariate analyses including age, sex, smoking habits, family history of obstructive airway disease, body mass index, and socio-economic status as independent variables, COPD was associated with ischemic heart disease (odds ratio [OR] 2.61; 95% confidence interval [CI] 1.12-6.08) and ischemic heart disease with COPD (OR 2.40; 95% CI 1.03-5.61). Conclusion: The study shows a strong association between COPD and cardiovascular diseases and indicates a strong association between restrictive lung function and heart diseases. Both obstructive and restrictive lung function impairments were common among subjects with heart diseases and vice versa.
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- Folkersen, Lasse, et al.
(författare)
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Association of genetic risk variants with expression of proximal genes identifies novel susceptibility genes for cardiovascular disease
- 2010
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Ingår i: Circulation. - 1942-325X .- 1942-3268. ; 3:4, s. 365-373
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Population-based genome-wide association studies have identified several single nucleotide polymorphisms (SNPs) associated with cardiovascular disease or its risk factors. Genes in close proximity to these risk-SNPs are often thought to be pathogenetically important based on their location alone. However, the actual connections between SNPs and disease mechanisms remain largely unknown. METHODS AND RESULTS: To identify novel susceptibility genes, we investigated how 166 SNPs previously found to be associated with increased cardiovascular risk and/or predisposing metabolic traits relate to the expression of nearby genes. Gene expression in 577 samples of aorta, liver, mammary artery, and carotid atherosclerotic plaque was measured using expression arrays. For 47 SNPs, the expression levels of proximal genes (located within 200 kb) were affected (P<0.005). More than 20 of these genes had not previously been identified as candidate genes for cardiovascular or related metabolic traits. SNP-associated gene effects were tissue-specific and the tissue specificity was phenotype-dependent. CONCLUSIONS: This study demonstrates several instances of association between risk-SNPs and genes immediately adjacent to them. It also demonstrates instances in which the associated gene is not the immediately proximal and obvious candidate gene for disease. This shows the necessity of careful studies of genetic marker data as a first step toward application of genome-wide association studies findings in a clinical setting.
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- Sabater-Lleal, Maria, et al.
(författare)
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Common genetic determinants of lung function, subclinical atherosclerosis and risk of coronary artery disease.
- 2014
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Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 9:8
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Tidskriftsartikel (refereegranskat)abstract
- Chronic obstructive pulmonary disease (COPD) independently associates with an increased risk of coronary artery disease (CAD), but it has not been fully investigated whether this co-morbidity involves shared pathophysiological mechanisms. To identify potential common pathways across the two diseases, we tested all recently published single nucleotide polymorphisms (SNPs) associated with human lung function (spirometry) for association with carotid intima-media thickness (cIMT) in 3,378 subjects with multiple CAD risk factors, and for association with CAD in a case-control study of 5,775 CAD cases and 7,265 controls. SNPs rs2865531, located in the CFDP1 gene, and rs9978142, located in the KCNE2 gene, were significantly associated with CAD. In addition, SNP rs9978142 and SNP rs3995090 located in the HTR4 gene, were associated with average and maximal cIMT measures. Genetic risk scores combining the most robustly spirometry-associated SNPs from the literature were modestly associated with CAD, (odds ratio (OR) (95% confidence interval (CI95) = 1.06 (1.03, 1.09); P-value = 1.5×10-4, per allele). In conclusion, our study suggests that some genetic loci implicated in determining human lung function also influence cIMT and susceptibility to CAD. The present results should help elucidate the molecular underpinnings of the co-morbidity observed across COPD and CAD.
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