ArticleArchives of medical science : AMS2025
The causal effects of placental weight on atherosclerotic cardiovascular disease: a Mendelian randomization and mediation analysis.
Article in Archives of medical science : AMS, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Association of ophthalmic diseases with stroke: cohort study and Mendelian randomization analysis.Archives of medical science : AMS · 2026Article
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8 authors.
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Abstract
Introduction: Previous studies have linked placental weight (PW) to cardiovascular diseases, but the causality and potential mediators underlying this relationship are still unknown. Material and methods: We conducted Mendelian randomization (MR) analysis via summary statistics from genome-wide association studies (GWAS), including PW adjusted for sex, 21 candidate mediators and atherosclerotic cardiovascular disease (ASCVD), which includes coronary heart disease (CHD) and ischemic stroke (IS). Two-step MR was employed to identify and assess the mediation and proportion of potential mediators in the association between PW and ASCVD. Additionally, we conducted a repeated analysis using PW adjusted for gestational age and sex. Results: Univariable MR (UVMR) analysis revealed that for each 1-SD decrease in fetal genotype-determined PW adjusted for sex only, the risk of CHD increased by 24% (95% CI: 1.05-1.46) and the risk of large artery stroke (LAS) increased by 46% (95% CI: 1.13-1.89). Similar results were obtained in repeated analyses. The mediation MR analysis revealed that the causal relationship between fetal genotype-determined PW and CHD risk was primarily mediated by birthweight, type 2 diabetes, and education, each mediating 3.66% to 40.80% of the total effect. The causal relationship between fetal genotype-determined PW and LAS risk was mediated mainly by type 2 diabetes, which accounted for 22.11% of the total effect. Conclusions: This study identified a unidirectional causal relationship between lower PW and a greater ASCVD risk, with factors such as birthweight, type 2 diabetes, and education mediating the association between PW and ASCVD.
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