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Joint effect of obesity and TNFA variability on asthma : two international cohort studies

Castro-Giner F., and Kogevinas, M. and Imboden, M. and de Cid R., and Jarvis, D. and Machler, M. and Berger, W. and Burney, P. and Franklin, K. A. and Gonzalez, J. R. and Heinrich, J. and Janson, C. and Omenaas, E. and Pin, I. and Rochat, T. and Sunyer, J. and Wjst, M. and Anto, J. M. and Estivill, X. and Probst-Hensch N. M., . (2009) Joint effect of obesity and TNFA variability on asthma : two international cohort studies. The European respiratory journal, 33 (5). pp. 1003-1009.

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Official URL: http://edoc.unibas.ch/dok/A5843249

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Abstract

Obesity is a risk factor for asthma. Adipose tissue expresses pro-inflammatory molecules including tumour necrosis factor (TNF), and levels of TNF are also related to polymorphisms in the TNF-alpha (TNFA) gene. The current authors examined the joint effect of obesity and TNFA variability on asthma in adults by combining two population-based studies. The European Community Respiratory Health Survey and the Swiss Cohort Study on Air Pollution and Lung and Heart Disease in Adults used comparable protocols, questionnaires and measures of lung function and atopy. DNA samples from 9,167 participants were genotyped for TNFA -308 and lymphotoxin-alpha (LTA) +252 gene variants. Obesity and TNFA were associated with asthma when mutually adjusting for their independent effects (odds ratio (OR) for obesity 2.4, 95% confidence interval (CI) 1.7-3.2; OR for TNFA -308 polymorphism 1.3, 95% CI 1.1-1.6). The association of obesity with asthma was stronger for subjects carrying the G/A and A/A TNFA -308 genotypes compared with the more common G/G genotype, particularly among nonatopics (OR for G/A and A/A genotypes 6.1, 95% CI 2.5-14.4; OR for G/G genotype 1.7, 95% CI 0.8-3.3). The present findings provide, for the first time, evidence for a complex pattern of interaction between obesity, a pro-inflammatory genetic factor and asthma
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Chronic Disease Epidemiology > Exposome Science (Probst-Hensch)
03 Faculty of Medicine > Departement Public Health > Sozial- und Präventivmedizin > Exposome Science (Probst-Hensch)
UniBasel Contributors:Probst Hensch, Nicole
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Munksgaard
ISSN:0903-1936
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:03 May 2018 09:36
Deposited On:24 May 2013 09:02

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