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Causal relationship between immune cells and venous thromboembolism: a bidirectional two-sample Mendelian
Wen Xiao1,2, Danfeng Gu3, Mingqi Zhang2
1Affiliated Hospital of Jiangnan University, Wuxi, 214122, China.
Specific immune cells are causally linked to venous thromboembolism (VTE), including pulmonary embolism (PE) and deep vein thrombosis (DVT). This research clarifies immune cell roles in VTE development.
Area of Science:
- Immunology
- Vascular Biology
- Genetics
Background:
- Venous thromboembolism (VTE), encompassing pulmonary embolism (PE) and deep vein thrombosis (DVT), is a complex vascular condition with unclear pathological mechanisms.
- Emerging evidence suggests immune cell involvement in VTE pathogenesis, but causal links are unproven.
Purpose of the Study:
- To systematically investigate causal relationships between immune phenotypic traits and VTE, PE, and DVT.
- To utilize a bidirectional, two-sample Mendelian randomization (MR) approach to assess these associations.
Main Methods:
- Employed bidirectional two-sample Mendelian randomization (MR) analysis.
- Immune traits as exposures and VTE, PE, DVT as outcomes (forward MR).
- VTE, PE, DVT as exposures and immune traits as outcomes (reverse MR), with sensitivity analyses and False Discovery Rate (FDR) correction.
Main Results:
- Identified potential causal links between specific immune cell types and VTE, PE, and DVT after FDR correction.
- Found associations between four immune cell types and VTE.
- Reported six immune cell types linked to PE and three to DVT.
Conclusions:
- Specific immune cell types are causally associated with VTE, PE, and DVT.
- These findings offer critical insights for future clinical research and therapeutic strategies targeting VTE.
- Establishes a clearer understanding of the immune system's role in thromboembolic disorders.
Related Concept Videos
Venous Thrombosis I: Introduction
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Venous Thrombosis III: Interprofessional Care
Bias in Epidemiological Studies
Causality in Epidemiology
Confounding in Epidemiological Studies

