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10:03
A Zebrafish Model of Diabetes Mellitus and Metabolic Memory
Published on: February 28, 2013
Gene-environment interactions in the development of type 2 diabetes: recent progress and continuing challenges
Marilyn C Cornelis1, Frank B Hu
1Department of Nutrition, Harvard School of Public Health, Harvard University, Boston, Massachusetts 02115, USA.
Annual Review of Nutrition
|May 1, 2012
Summary
Genetic and environmental factors significantly influence type 2 diabetes (T2D) risk. Lifestyle interventions like physical activity can mitigate genetic predispositions, but further research is needed to fully understand these complex gene-environment interactions.
Area of Science:
- Genetics and Environmental Health
- Metabolic Disease Research
Background:
- Type 2 diabetes (T2D) development involves intricate genetic and environmental interactions.
- Genome-wide association studies (GWAS) have advanced understanding of T2D genetic loci.
- Lifestyle factors, such as physical activity and diet, may modify the impact of genetic risk for T2D.
Purpose of the Study:
- To review the current understanding of gene-environment interactions in T2D.
- To highlight challenges and future directions in T2D gene-environment research.
Main Methods:
- Review of recent literature on T2D genetics and environmental factors.
- Discussion of statistical power and measurement error limitations in interaction studies.
- Exploration of agnostic approaches for discovering novel gene-environment interactions.
Main Results:
- Physical activity and healthy lifestyles can attenuate genetic T2D risk.
- Western dietary patterns may exacerbate genetic T2D risk.
- Inconsistencies and challenges persist in characterizing gene-environment interactions for T2D.
Conclusions:
- Further research, particularly large collaborative efforts, is crucial for understanding T2D gene-environment interplay.
- Addressing limitations in statistical power and environmental factor measurement is essential.
- Agnostic approaches may uncover additional T2D risk loci missed by current GWAS.
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