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Evidence for gene-environment interaction in a genome wide study of nonsyndromic cleft palate.

Authors
 Terri H. Beaty ; Ingo Ruczinski ; Alan F. Scott ; Hua Ling ; Elizabeth W. Pugh ; Kimberley F. Doheny ; Kaare Christensen ; Sun Ha Jee ; Rolv T. Lie1 ; Allen J. Wilcox ; Bing Shi1 ; Ethylin W. Jabs ; Shangzhi Huang ; Hong Wang ; Xiaoqian Ye ; Vincent Yeow ; Felicia Cheah ; Samuel S Chong ; Philip K Chen ; Yah Huei Wu-Chou ; Holger Schwender ; Tian Xiao Zhang ; Sheng C. Jin ; Poorav J. Patel ; Tao Wu ; Kung Yee Liang ; M. Daniele Fallin ; Richard J. Redett ; Tanda Murray ; Jacqueline B. Hetmanski ; Ronald G. Munger ; Mary L. Marazita ; Jeffrey C. Murray 
Citation
 Genetic Epidemiology, Vol.35(6) : 469~478, 2011 
Journal Title
 Genetic Epidemiology 
ISSN
 0741-0395 
Issue Date
2011
Abstract
Nonsyndromic cleft palate (CP) is a common birth defect with a complex and heterogeneous etiology involving both genetic and environmental risk factors. We conducted a genome-wide association study (GWAS) using 550 case-parent trios, ascertained through a CP case collected in an international consortium. Family-based association tests of single nucleotide polymorphisms (SNP) and three common maternal exposures (maternal smoking, alcohol consumption, and multivitamin supplementation) were used in a combined 2 df test for gene (G) and gene-environment (G × E) interaction simultaneously, plus a separate 1 df test for G × E interaction alone. Conditional logistic regression models were used to estimate effects on risk to exposed and unexposed children. While no SNP achieved genome-wide significance when considered alone, markers in several genes attained or approached genome-wide significance when G × E interaction was included. Among these, MLLT3 and SMC2 on chromosome 9 showed multiple SNPs resulting in an increased risk if the mother consumed alcohol during the peri-conceptual period (3 months prior to conception through the first trimester). TBK1 on chr. 12 and ZNF236 on chr. 18 showed multiple SNPs associated with higher risk of CP in the presence of maternal smoking. Additional evidence of reduced risk due to G × E interaction in the presence of multivitamin supplementation was observed for SNPs in BAALC on chr. 8. These results emphasize the need to consider G × E interaction when searching for genes influencing risk to complex and heterogeneous disorders, such as nonsyndromic CP.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/94838
DOI
10.1002/gepi.20595
Appears in Collections:
1. 연구논문 > 4. Graduate School of Public Health > Graduate School of Public Health
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