Type 2 & other diabetes

Multi-ancestry polygenic mechanisms of type 2 diabetes

Nat MedPublished Genetic association study

An erratum to this article was published (Nat Med, Jul 2024 ↗)

Authors' conclusion

Thus, these multi-ancestry T2D genetic clusters encompass a broader range of biological mechanisms and provide preliminary insights to explain ancestry-associated differences in T2D risk profiles.

Study context

Population
Diverse populations in 37 published T2D GWAS (>1.4 million individuals); clusters assessed in two independent biobanks of diverse genetic ancestry37 GWAS, >1.4 million
Participants
21,906 / 14,410 / 2,422 / 90,093 / 1,262
Comparison
African vs Admixed American vs East Asian vs European vs South Asian
  • Africann = 21,906
  • Admixed Americann = 14,410
  • East Asiann = 2,422
  • Europeann = 90,093reference
  • South Asiann = 1,262
Outcome
Multi-ancestry T2D genetic clusters
Methodological detailsmulti-ancestry, soft clustering, meta-analysis of 37 published GWAS, validation in two independent biobanks
  • Multi-ancestry
  • Soft clustering
  • Meta-analysis of 37 published GWAS
  • Validation in two independent biobanks

Pooled result

As reported in the abstract

Genetic clusters identified from 650 T2D-associated variants and 110 T2D-related traits
12

Further pooled results

BMI with equivalent T2D risk

Body mass index (BMI) with equivalent T2D risk — East Asian equivalent BMI threshold after adjusting for cluster-specific genetic risk
28.5 (27.1-30.0) kg m-2

Original publication

Multi-ancestry polygenic mechanisms of type 2 diabetes. Nat Med. Published 5 March 2024. doi:10.1038/s41591-024-02865-3

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