A model of gene-gene and gene-environment interactions and its implications for targeting environmental interventions by genotype |
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Authors: | Helen M Wallace |
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Affiliation: | (1) GeneWatch UK, The Mill House, Tideswell, SK17 8LN Buxton, Derbyshire, UK |
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Abstract: | Background The potential public health benefits of targeting environmental interventions by genotype depend on the environmental and genetic contributions to the variance of common diseases, and the magnitude of any gene-environment interaction. In the absence of prior knowledge of all risk factors, twin, family and environmental data may help to define the potential limits of these benefits in a given population. However, a general methodology to analyze twin data is required because of the potential importance of gene-gene interactions (epistasis), gene-environment interactions, and conditions that break the 'equal environments' assumption for monozygotic and dizygotic twins. |
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