ArticleThe American journal of clinical nutrition2021
Genetically predicted circulating concentrations of micronutrients and risk of colorectal cancer among individuals of European descent: a Mendelian randomization study.
Article in The American journal of clinical nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT02328677 (ColoCare Transdisciplinary Research in Colorectal Cancer Prognosis), which is not on this map. Cited by 24 papers, 1 of them a synthesis that pooled it.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
ColoCare Transdisciplinary Research in Colorectal Cancer Prognosis
Who cites it
24 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.
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- IBS May Have a Causal Effect on Increased Tryptophan Metabolites Levels: Insights from a Bidirectional Two-Sample Mendelian Randomization Study.International journal of tryptophan research : IJTR · 2025Article
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- Zinc Deficiency as a General Feature of Cancer: a Review of the Literature.Biological trace element research · 2024Review
- Mendelian randomisation analysis for intestinal disease: achievement and future.eGastroenterology · 2024Review
- Study of Serum Copper and Zinc Levels and Serum Cu/Zn Ratio among Polish Women with Endometrial Cancer.Nutrients · 2023Article
- Diet-Wide Association, Genetic Susceptibility and Colorectal Cancer Risk: A Prospective Cohort Study.Nutrients · 2023Article
- Scientific opinion on the tolerable upper intake level for folate.EFSA journal. European Food Safety Authority · 2023Article
- An atlas of associations between 14 micronutrients and 22 cancer outcomes: Mendelian randomization analyses.BMC medicine · 2023Article
- The causal effect of serum micronutrients on malignant kidney neoplasm in European descent.Frontiers in oncology · 2023Article
- Oxidative imbalance increases the risk for colonic polyp and colorectal cancer development.World journal of gastrointestinal oncology · 2022Article
- High Plasma Vitamin B12 and Cancer in Human Studies: A Scoping Review to Judge Causality and Alternative Explanations.Nutrients · 2022Article
- Let food be thy medicine: the role of diet in colorectal cancer: a narrative review.Journal of gastrointestinal oncology · 2022Review
- Selenium and cancer risk: Wide-angled Mendelian randomization analysis.International journal of cancer · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
88 authors at 20 institutions in 17 countries.
Funding
Abstract
backgroundThe literature on associations of circulating concentrations of minerals and vitamins with risk of colorectal cancer is limited and inconsistent. Evidence from randomized controlled trials (RCTs) to support the efficacy of dietary modification or nutrient supplementation for colorectal cancer prevention is also limited.
objectivesTo complement observational and RCT findings, we investigated associations of genetically predicted concentrations of 11 micronutrients (β-carotene, calcium, copper, folate, iron, magnesium, phosphorus, selenium, vitamin B-6, vitamin B-12, and zinc) with colorectal cancer risk using Mendelian randomization (MR).
methodsTwo-sample MR was conducted using 58,221 individuals with colorectal cancer and 67,694 controls from the Genetics and Epidemiology of Colorectal Cancer Consortium, Colorectal Cancer Transdisciplinary Study, and Colon Cancer Family Registry. Inverse variance-weighted MR analyses were performed with sensitivity analyses to assess the impact of potential violations of MR assumptions.
resultsNominally significant associations were noted for genetically predicted iron concentration and higher risk of colon cancer [ORs per SD (ORSD): 1.08; 95% CI: 1.00, 1.17; P value = 0.05] and similarly for proximal colon cancer, and for vitamin B-12 concentration and higher risk of colorectal cancer (ORSD: 1.12; 95% CI: 1.03, 1.21; P value = 0.01) and similarly for colon cancer. A nominally significant association was also noted for genetically predicted selenium concentration and lower risk of colon cancer (ORSD: 0.98; 95% CI: 0.96, 1.00; P value = 0.05) and similarly for distal colon cancer. These associations were robust to sensitivity analyses. Nominally significant inverse associations were observed for zinc and risk of colorectal and distal colon cancers, but sensitivity analyses could not be performed. None of these findings survived correction for multiple testing. Genetically predicted concentrations of β-carotene, calcium, copper, folate, magnesium, phosphorus, and vitamin B-6 were not associated with disease risk.
conclusionsThese results suggest possible causal associations of circulating iron and vitamin B-12 (positively) and selenium (inversely) with risk of colon cancer.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.