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

Bibliographic Details
Title: Exploring the causal associations between diet-derived circulating antioxidants and the risk of endometriosis: a Mendelian randomization study
Authors: Xiaoming Li, Zhen Xie, Hongbing Qiu, Xiaofeng Xie, Lusha Liu
Source: Frontiers in Nutrition, Vol 11 (2024)
Publisher Information: Frontiers Media S.A., 2024.
Publication Year: 2024
Collection: LCC:Nutrition. Foods and food supply
Subject Terms: endometriosis, oxidative stress, circulating antioxidants, Mendelian randomization, causality, Nutrition. Foods and food supply, TX341-641
More Details: BackgroundNumerous 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).MethodsA 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.ResultsNo 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).ConclusionOur study demonstrated that increased levels of diet-derived circulating antioxidants were not significantly associated with a reduced risk of endometriosis.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2296-861X
Relation: https://www.frontiersin.org/articles/10.3389/fnut.2024.1453147/full; https://doaj.org/toc/2296-861X
DOI: 10.3389/fnut.2024.1453147
Access URL: https://doaj.org/article/103a36ecc2b24739b9385d75e5645081
Accession Number: edsdoj.103a36ecc2b24739b9385d75e5645081
Database: Directory of Open Access Journals
More Details
ISSN:2296861X
DOI:10.3389/fnut.2024.1453147
Published in:Frontiers in Nutrition
Language:English