Summary
This genome-wide association study investigated the inherited genetic basis of fat distribution across three major adipose depots in a large UK population cohort, independent of overall adiposity. The authors identified 250 genetic variants with depot-specific effects and demonstrated that polygenic scores derived from these variants have divergent associations with cardiometabolic disease outcomes, suggesting that fat location—not just total adiposity—reflects distinct heritable biology with important health implications.
Regional applicability
This study was conducted using UK Biobank data and is directly applicable to understanding the genetic architecture of fat distribution in the United Kingdom population. The findings are relevant to British clinical practice and public health policy regarding cardiometabolic risk stratification, though the applicability to other populations may vary based on genetic ancestry differences.
Key measures
MRI-derived visceral adipose tissue (VAT), abdominal subcutaneous adipose tissue (ASAT), and gluteofemoral adipose tissue (GFAT) volumes; BMI-adjusted local adiposity traits (VATadj, ASATadj, GFATadj); fat depot ratios (VAT/ASAT, VAT/GFAT, ASAT/GFAT); genome-wide association study (GWAS) variants; polygenic scores; associations with type 2 diabetes and coronary artery disease
Outcomes reported
The study identified 250 independent common genetic variants associated with visceral, abdominal subcutaneous, and gluteofemoral fat depot volumes and their ratios in 38,965 UK Biobank participants using MRI-derived measures adjusted for BMI. Depot-specific polygenic scores were constructed and shown to have divergent associations with type 2 diabetes and coronary artery disease risk.
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