期刊
DIABETES
卷 70, 期 8, 页码 1843-1856出版社
AMER DIABETES ASSOC
DOI: 10.2337/db21-0129
关键词
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资金
- Diabetes UK RD Lawrence fellowship [17/0005594]
- Academy of Medical Sciences (AMS) Springboard Award - AMS
- Wellcome Trust
- Global Challenges Research Fund
- U.K. Government Department of Business, Energy & Industrial Strategy
- British Heart Foundation
- Diabetes UK [SBF004\1079]
- Medical Research Council
This study identified two clusters of adiposity genetic variants: one with adverse metabolic effects (UFA) and the other with favorable metabolic effects (FA). Adiposity-increasing alleles were associated with different metabolic profiles and risks of diseases for UFA and FA variants. Understanding the difference between FA and UFA may provide new insights for preventing, predicting, and treating cardiometabolic diseases.
To understand the causal role of adiposity and ectopic fat in type 2 diabetes and cardiometabolic diseases, we aimed to identify two clusters of adiposity genetic variants: one with adverse metabolic effects (UFA) and the other with, paradoxically, favorable metabolic effects (FA). We performed a multivariate genome-wide association study using body fat percentage and metabolic biomarkers from UK Biobank and identified 38 UFA and 36 FA variants. Adiposity-increasing alleles were associated with an adverse metabolic profile, higher risk of disease, higher CRP, and higher fat in subcutaneous and visceral adipose tissue, liver, and pancreas for UFA and a favorable metabolic profile, lower risk of disease, higher CRP and higher subcutaneous adipose tissue but lower liver fat for FA. We detected no sexual dimorphism. The Mendelian randomization studies provided evidence for a risk-increasing effect of UFA and protective effect of FA for type 2 diabetes, heart disease, hypertension, stroke, nonalcoholic fatty liver disease, and polycystic ovary syndrome. FA is distinct from UFA by its association with lower liver fat and protection from cardiometabolic diseases; it was not associated with visceral or pancreatic fat. Understanding the difference in FA and UFA may lead to new insights in preventing, predicting, and treating cardiometabolic diseases.
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