Exploring causal correlations between inflammatory cytokines and varicose veins: A Mendelian randomization analysis

Area of Science:

• Genetics
• Immunology
• Vascular Biology

Background:

• Varicose veins are a common vascular disorder.
• The role of inflammatory cytokines in varicose vein development is not fully understood.

Purpose of the Study:

• To investigate the causal relationship between inflammatory cytokines and the risk of varicose veins using Mendelian randomization.
• To identify specific inflammatory biomarkers associated with varicose vein risk.

Main Methods:

• Utilized genome-wide association study (GWAS) data from European individuals.
• Applied multiple Mendelian randomization (MR) methods to assess causality.
• Performed MR-Egger intercept and heterogeneity tests to check for pleiotropy and heterogeneity.

Main Results:

• Elevated levels of CASP-8 and Vascular Endothelial Growth Factor A (VEGF-A) were significantly associated with increased varicose vein risk.
• Certain cytokines, such as 4E-binding protein 1 (4EBP1) and Matrix Metalloproteinase-10 (MMP-10), showed a protective effect.
• No significant pleiotropy or heterogeneity was detected, supporting the validity of the findings.

Conclusions:

• Specific inflammatory cytokines are causally linked to the pathogenesis of varicose veins.
• Identifying these cytokines provides novel therapeutic targets for varicose vein treatment and prevention.
• Inflammation plays a crucial role in the development of varicose veins.