Shared genetic links between cardiometabolic diseases and aortic valve calcification

KaiJian Zhang1, Yi Zhang2, JingHan Chu3

  • 1Department of Cardiology, Ma'anshan People's Hospital, Wannan Medical College, Ma'anshan, 243099 Anhui China.

Insights

Cardiometabolic disorders are linked to calcific aortic valve stenosis (CAVS) through shared genetic factors. This study confirms a causal association, offering insights into disease mechanisms and potential therapies.

Area of Science:

  • Cardiovascular Genetics
  • Metabolic Diseases
  • Valvular Heart Disease

Background:

  • Cardiometabolic disorders are increasingly recognized as risk factors for calcific aortic valve stenosis (CAVS).
  • The precise biological mechanisms linking these conditions remain incompletely understood.
  • Understanding this relationship is crucial for developing effective prevention and treatment strategies.

Purpose of the Study:

  • To investigate the causal association between cardiometabolic diseases and CAVS.
  • To identify shared genetic underpinnings between these conditions.
  • To leverage genetic correlation and Mendelian randomization analyses for robust evidence.

Main Methods:

  • Utilized genome-wide association study (GWAS) data from the FinnGen consortium for seven cardiometabolic disorders and CAVS.
  • Employed linkage disequilibrium score regression (LDSC) and high-definition likelihood (HDL) for genetic correlation analysis.
  • Performed bidirectional two-sample Mendelian randomization (MR) analysis, primarily using inverse-variance weighted (IVW) regression, with sensitivity analyses.

Main Results:

  • Identified 12 shared genes implicated in both cardiometabolic disorders and CAVS.
  • Functional enrichment analysis highlighted the involvement of these genes in cholesterol homeostasis, vascular remodeling, smooth muscle proliferation, and lipid accumulation.
  • Mendelian randomization analysis provided evidence supporting a causal relationship between cardiometabolic disorders and CAVS.

Conclusions:

  • Demonstrated a significant genetic overlap between cardiometabolic disorders and CAVS.
  • These findings elucidate potential mechanisms driving the co-occurrence of these conditions.
  • The results have implications for future therapeutic interventions targeting shared pathways.
Abstract

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