ArticleDiscover oncology2025
Genetically predicted vitamins supplementation and risk of skin cancers: a Mendelian randomization study.
Article in Discover oncology, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- The Role of Vitamins and Micronutrients in the Prevention of Melanoma: A Review of Current Evidence.International journal of molecular sciences · 2026Review
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Authors and funding
12 authors.
Funding
Abstract
backgroundThe causal relationship between vitamins supplementation and the risk of skin cancers remains unclear. We conducted a Mendelian randomization study to assess the associations between vitamins supplementation and skin cancers in the general population.
objectiveWe aimed to investigate the causal relationship of vitamins (A-E) supplementation with skin cancers using and utilizing the linkage disequilibrium score regression (LDSC) Mendelian randomization (MR). MATERIALS AND
methodsWe selected genome-wide significant single-nucleotide polymorphisms (SNPs) linked to vitamin supplements (A-E). Summary-level data for melanoma, basal cell carcinoma, and squamous cell carcinoma were obtained from large-scale genome-wide association studies. We applied the inverse-variance weighted (IVW) method within a random effects model, alongside weighted median, MR-Egger, simple median, sensitivity analyses, and MRlap methods to ensure robustness. A meta-analysis was conducted to assess the causal relationship between vitamins supplementation and melanoma. The STROBE-MR checklist was followed throughout.
resultsFolate supplementation was associated with a reduced melanoma risk (IVW OR = 0.88; 95% CI 0.80-0.96; P = 0.006). The MR analysis indicated a significant inverse causal relationship. Heterogeneity and sensitivity analyses confirmed minimal impact from individual SNPs. MRlap corrected for potential estimation bias due to sample overlap, which was not significant, reinforcing the IVW findings. The meta-analysis ensured robust and stable results. LDSC regression analysis suggests a weak causal relationship between folate supplementation and melanoma. Yet no association was found between genetically predicted vitamins A, B6, B12, C, D, E, and skin cancers.
conclusionBoth observational meta-analysis and MR analysis based on genetic variation provide robust evidence indicat that folate supplementation decreases the risk of melanoma, suggesting that interventions targeting folate supplementation may contribute to the primary prevention of melanoma. Further studies are needed to explore the potential association between other vitamins supplementation and the risk of skin cancers.
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