Methods for investigating gene-environment interactions in candidate pathway and genome-wide association studies.
Methods for investigating gene-environment interactions in candidate pathway and genome-wide association studies.
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DOI:
10.1146/annurev.publhealth.012809.103619
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发表时间:
2010
影响因子:
20.8
通讯作者:
Thomas D
中科院分区:
文献类型:
--
作者:
Thomas D
Despite the considerable enthusiasm about the yield of novel and replicated discoveries of genetic associations from the new generation of genome-wide association studies (GWAS), the proportion of the heritability of most complex diseases that have been studied to date remains small. Some of this “dark matter” could be due to gene-environment (G×E) interactions or more complex pathways involving multiple genes and exposures. We review the basic epidemiologic study design and statistical analysis approaches to studying G×E interactions individually and then consider more comprehensive approaches to studying entire pathways or GWAS data. In addition to the usual issues in genetic association studies, particular care is needed in exposure assessment and very large sample sizes are required. Although hypothesis-driven pathway-based and “agnostic” GWAS approaches are generally viewed as opposite poles, we suggest that the two can be usefully married using hierarchical modeling strategies that exploit external pathway knowledge in mining genome-wide data.
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DOI:
10.1038/nrg2579
发表时间:
2009-06
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
Cordell HJ
通讯作者:
Cordell HJ
影响因子:
1.8
作者:
Conti, DV;Cortessis, V;Thomas, DC
通讯作者:
Thomas, DC
影响因子:
2.1
作者:
Chasman, Daniel I.
通讯作者:
Chasman, Daniel I.
影响因子:
30.8
作者:
通讯作者:
--
影响因子:
2.1
作者:
Chen, Yi-Hau;Lin, Hui-Wen;Liu, Huimei
通讯作者:
Liu, Huimei