國家衛生研究院 NHRI:Item 3990099045/2517

NHRI > National Institute of Environmental Health Sciences > Ying-Chin Ko(2003-2009) > Periodical Articles > Item 3990099045/2517

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/2517

Title:	The synergistic effects of the IL-9 gene and environmental exposures on asthmatic Taiwanese families as determined by the transmission/disequilibrium test
Authors:	Wang, TN;Chen, WY;Huang, YF;Shih, NH;Feng, WW;Tseng, HI;Lee, CH;Ko, YC
Contributors:	Division of Environmental Health and Occupational Medicine
Abstract:	Asthma occurs in genetically susceptible individuals in the presence of environmental factors. The interleukin-9 (IL-9) gene, one of the cytokine genes located on chromosome 5q31, plays an important role in the development of asthmatic syndrome by enhancing both T-cell and mast-cell function. This study investigated GT repeat polymorphism of the IL-9 gene and the gene-environment interactions, which may predispose individuals to asthma and atopy pathogenesis. In this study, we used the transmission/disequilibrium test (TDT) to investigate the relationship between asthma and the IL-9 gene by studying 123 parent-offspring trios and 91 siblings. For allele-specific TDT chi-squared test, allele 122 of the IL-9 gene showed significant association with asthmatics with specific IgE against house dust (HD) (P = 0.038). The additions of covariates to TDT to conduct the synergistic effects between the IL-9 gene and environmental factors into account were estimated by conditional logistic regression models. The odds ratio for transmission of allele 122 of the IL-9 gene was 1.23 (P = 0.28) for all asthmatic probands. There was slight increased interaction effect on asthma between transmission of allele 122 of IL-9 gene to offspring and who were exposed to the fur of pets (OR = 3.33, P = 0.047). We also detected elevated odds of transmission of allele 122 to atopic asthmatic probands (OR = 2.08, P = 0.03) and offspring with very high levels of serum IgE (>= 800 IU mL(-1)). In conclusion, this study has found that the IL-9 gene was slightly associated with asthmatics who have positive specific IgE against Der p (or Der f) and house dust, when information on environmental factors was incorporated as effect modifiers.
Keywords:	Genetics & Heredity;Immunology
Date:	2006-04
Relation:	International Journal of Immunogenetics. 2006 Apr;33(2):105-110.
Link to:	http://dx.doi.org/10.1111/j.1744-313X.2006.00578.x
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1744-3121&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000236065500007
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33645131493
Appears in Collections:	[Ying-Chin Ko(2003-2009)] Periodical Articles

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