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Joint effect of obesity and TNFA variability on asthma: Two international cohort studies.
Eur. Respir. J. 33, 1003-1009 (2009)
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 (Cl) 1.7-3.2; OR for TNFA -308 polymorphism 1.3, 95% Cl 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 GIG genotype, particularly among nonatopics (OR for G/A and A/A genotypes 6.1, 95% Cl 2.5-14.4; OR for GIG genotype 1.7, 95% Cl 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.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
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5.545
2.800
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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Asthma; atopy; genetic polymorphism; obesity; tumour necrosis factor-alpha; necrosis-factor-alpha; body-mass index; respiratory-health-survey; waist circumference; association; risk; polymorphism; metaanalysis; symptoms; children
Sprache
englisch
Veröffentlichungsjahr
2009
HGF-Berichtsjahr
2009
ISSN (print) / ISBN
0903-1936
e-ISSN
1399-3003
Zeitschrift
European Respiratory Journal
Quellenangaben
Band: 33,
Heft: 5,
Seiten: 1003-1009
Verlag
European Respiratory Society
Verlagsort
Sheffield
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Lung Health and Immunity (LHI)
Institute of Epidemiology (EPI)
Institute of Epidemiology (EPI)
POF Topic(s)
30202 - Environmental Health
Forschungsfeld(er)
Lung Research
PSP-Element(e)
G-505000-003
G-503900-002
G-503900-002
Scopus ID
66749175772
PubMed ID
19196817
Erfassungsdatum
2009-07-09