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Genetic admixture and obesity: recent perspectives and future applications
José R Fernández1, Keith E Pearson, Kenneth P Kell
1Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, Ala., USA.
Human Heredity
|October 2, 2013
Summary
Genetic admixture studies reveal ancestral contributions to obesity and body composition. Future research must explore gene-environment interactions in diverse populations.
Area of Science:
- Population genetics
- Human genetics
- Obesity research
Background:
- New World colonization created unique admixed populations with novel genetic combinations.
- Genetic admixture analysis estimates ancestral contributions to individual variation.
- Admixture estimates have been applied to study obesity and body composition in diverse US groups.
Purpose of the Study:
- To investigate the genetic contributions to obesity and body composition.
- To understand the role of genetic ancestry in health disparities.
- To identify areas for future research in gene-environment interactions.
Main Methods:
- Utilizing a genetic admixture approach.
- Identifying and genotyping ancestry informative markers.
- Estimating proportions of ancestral populations in admixed individuals.
Main Results:
- Genetic admixture has been used to understand variations in obesity and body composition.
- Diverse admixed groups in the US show differing obesity prevalence.
- Progress has been made in understanding genetic contributions.
Conclusions:
- Genetic admixture approaches offer insights into obesity and body composition.
- Further research is needed to explore gene-environment interactions.
- Environmental factors require more granular definition, including nutrients, cellular stress, and social contexts.
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