Genetic Analysis of Depression and Blood Clot Risk Across Five Ancestries

A 2026 study by Qian Liu investigates the causal relationship between major depressive disorder (MDD) and venous thromboembolism (VTE) using trans-ethnic Mendelian randomization. The analysis uses genetic data from five ancestries sourced from the Psychiatric Genomics Consortium and the Global Biobank Meta-analysis Initiative. It reports bidirectional causal associations, with specific odds ratios provided for African, East Asian, South Asian, and Hispanic ancestries.

Use Cases

• Conducting cross-ancestry Mendelian randomization analyses based on the described TEMR framework.
• Investigating genetic pleiotropy and heterogeneity between psychiatric and cardiovascular traits based on the sensitivity analyses mentioned.
• Validating causal inference methods like BFGS, CG, L-BFGS-B, and SANN based on the validation techniques described.
• Studying ancestry-specific disease risk using genetic instrumental variables from five population groups.

Strengths

• Analysis includes five distinct genetic ancestries: European, African, Hispanic, East Asian, and South Asian.
• Uses multiple validation algorithms (BFGS, CG, L-BFGS-B, SANN) and sensitivity tests (MRLap, Steiger test).
• Reports specific odds ratios and confidence intervals, such as OR: 1.241 for MDD increasing VTE risk in AFR ancestry.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is a 548.3 KB DOCX file, suggesting it is likely a document describing the study rather than a primary data table.
• Row count is unknown, which may limit suitability assessment for direct computational analysis.

Provenance

Source

Psychiatric Genomics Consortium (PGC), Global Biobank Meta-analysis Initiative, Million Veteran Program.

Collection Method

Trans-ethnic Mendelian randomization (TEMR) using independent genome-wide significant variants as instrumental variables.

Freshness

Last updated 2026-05-21 03:56:53; freshness should be verified.

Geography

Genetic data from European, African, Hispanic, East Asian, and South Asian ancestries.