ArticleFrontiers in microbiology2021
Fecal Methylmercury Correlates With Gut Microbiota Taxa in Pacific Walruses (
Article in Frontiers in microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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.
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Who cites it
5 citing papers in PubMed, 13 citations in OpenAlex.
- Article
- Comparative gut microbiome research through the lens of ecology: theoretical considerations and best practices.Biological reviews of the Cambridge Philosophical Society · 2025Review
- Intestinal microbiota protects against methylmercury-induced neurotoxicity.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2024Review
- Fecal and skin microbiota of two rescued Mediterranean monk seal pups during rehabilitation.Microbiology spectrum · 2024Article
- Heavy metal contamination in pristine environments: lessons from the Juan Fernandez fur seal (Royal Society open science · 2023Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesMethylmercury metabolism was investigated in Pacific walruses (
methodsTotal mercury and methylmercury concentrations were measured in fecal samples and paired colon samples (
resultsIn fecal samples, the median values for total mercury, methylmercury, and %methylmercury (of total mercury) were 200 ng/g, 4.7 ng/g, and 2.5%, respectively, while in colon samples, the median values for the same parameters were 28 ng/g, 7.8 ng/g, and 26%, respectively. In fecal samples, methylmercury was negatively correlated with one
conclusionsMedian %methylmercury (of total mercury) was 10 times higher in the colon compared to the fecal samples, suggesting that methylmercury was able to pass through the colon into systemic circulation. Fecal total mercury and/or methylmercury concentrations in walruses were comparable to some human studies despite differences in seafood consumption rates, suggesting that walruses excreted less mercury. There are no members (at this time) of the Oscillospirales order which are known to contain the genes to methylate mercury, suggesting the source of methylmercury in the gut was from diet and not
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Registered trials
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