Genetic diversity improves the accuracy of predicting blood lipid levels
In short: Researchers who conducted a large meta-analysis of 1.65 million individuals found that including diverse ancestries significantly improves the ability to pinpoint functional genetic variants. By looking beyond European populations, the study showed that genetic diversity is more effective for improving polygenic prediction than simply increasing the number of participants from European backgrounds.
The study used a meta-analysis of approximately 1.65 million people, including 350,000 from non-European ancestries, to evaluate how ancestry affects genetic discoveries. The researchers found that increasing participant diversity enhances the precision of identifying causal variants and the portability of polygenic scores.
However, the study's findings regarding the portability of polygenic prediction were evaluated in a subset of approximately 295,000 individuals across seven ancestry groups.
Why it matters: Expanding genetic research to include diverse populations is essential for developing accurate and equitable precision medicine.
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Sources
- Summary by Intellect · source: Research: Graham et al. (2021). The power of genetic diversity in genome-wide association studies of lipids. Nature.
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