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Exploring the causal associations between diet-derived circulating antioxidants and the risk of endometriosis: a Mendelian randomization study

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机构: [1]Department of Gynecology, Xingtai People's Hospital, Xingtai, China. [2]Department of Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
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关键词: endometriosis oxidative stress circulating antioxidants Mendelian randomization causality

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Numerous observational studies and randomized controlled trials have recently revealed the associations between circulating antioxidants and the risk of endometriosis, while the underlying causal relationship remains unclear. This study aimed to investigate the causal association between genetically determined circulating antioxidants and the risk of endometriosis using Mendelian randomization (MR).A two-sample MR analysis was conducted using publicly available summary data from genome-wide association studies (GWAS) to investigate the causal impact of genetically determined absolute circulating antioxidants (such as ascorbate, retinol, β-carotene, and lycopene) and their metabolites (including α-and γ-tocopherol, ascorbate, and retinol) on the risk of endometriosis. The study used inverse variance weighted (IVW) or Wald ratio analyses as the primary estimation method and also conducted sensitivity analyses to assess heterogeneity and pleiotropy.No significant causality was observed for genetically determined circulating antioxidants and the risk of endometriosis. The pooled odds ratios (ORs) for absolute circulating antioxidants were 0.62 (95% CI: 0.32-1.18, retinol), 0.95 (95% CI: 0.79-1.15, β-carotene), 1.01 (95% CI: 0.95-1.08, lycopene), and 1.00 (95% CI: 0.99-1.02, ascorbate, expressed as a Wald ratio). The pooled ORs indicating the EM risk per unit increase in circulating antioxidant metabolites were 1.04 (95% CI: 0.82-1.33, γ-tocopherol), 0.91 (95% CI: 0.57-1.46, α-tocopherol), 1.03 (95% CI: 0.99-1.07, retinol), and 0.96 (95% CI: 0.87-1.06, ascorbate).Our study demonstrated that increased levels of diet-derived circulating antioxidants were not significantly associated with a reduced risk of endometriosis.Copyright © 2024 Li, Xie, Qiu, Xie and Liu.

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出版当年[2025]版:
大类 | 2 区 农林科学
小类 | 3 区 营养学
最新[2025]版:
大类 | 2 区 农林科学
小类 | 3 区 营养学
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第一作者机构: [1]Department of Gynecology, Xingtai People's Hospital, Xingtai, China.
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