Osteoporosis, bone & mineral

Genetic predisposition to bone mineral density and their health conditions in East Asians

J Bone Miner ResPublished Genome-wide association study

Authors' conclusion

This study identified key genetic factors for bone health in Taiwan, and revealed significant health conditions in EAS, particularly highlighting the genetic interplay between bone health and metabolic traits like T2D and BMI.

Study context

Population
Individuals from the Taiwan Biobank, East AsiansTaiwan Biobank
Participants
86,716 individuals
Outcome
Genetic loci for BMD
Methodological detailsgene-based genome-wide association study (GWAS), polygenic risk score assessments, cross-trait linkage disequilibrium score regression, bidirectional Mendelian randomization
  • Gene-based GWAS
  • Polygenic risk score assessments
  • Cross-trait linkage disequilibrium score regression
  • Bidirectional Mendelian randomization

Performance

As reported in the abstract

Significant SNPs related to BMD

78

Genes related to BMD

75

Further findings

Genetic correlations (cross-trait LD score regression)

BMD and osteoporosis consistently genetically correlated with BMI and T2D in East Asians (EAS)

Observational associations

Higher BMD linked to lower osteoporosis risk but increased BMI and T2D
Osteoporosis linked to lower BMI, waist circumference, HbA1c and reduced T2D risk

Bidirectional Mendelian randomization

Higher BMI causally increases BMD in EAS
No direct causal relationship between BMD and T2D, or between osteoporosis and BMI or T2D

Original publication

Genetic predisposition to bone mineral density and their health conditions in East Asians. J Bone Miner Res. Published 16 May 2024. doi:10.1093/jbmr/zjae078

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