Evidence map›Paper›PMID 22523489›Full record

ArticleJournal of toxicology2012

Nutritional manipulation of one-carbon metabolism: effects on arsenic methylation and toxicity.

Megan N Hall, Mary V Gamble

Open access · goldAbstract read
In one paragraph

Article in Journal of toxicology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
7.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 89 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. Article
  8. A State-of-the-Science Review on Metal Biomarkers.Current environmental health reports · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Factors Affecting Arsenic Methylation in Contaminated Italian Areas.International journal of environmental research and public health · 2020
    Article
  14. Article
  15. Review
  16. Article
  17. Evaluation of plasma arsenicals as potential biomarkers of exposure to inorganic arsenic.Journal of exposure science & environmental epidemiology · 2019
    Article
  18. Article
  19. Metabolic Phenotype of Wild-Type andEnvironmental health perspectives · 2018
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Megan N HallDepartment of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, Room T31, New York, NY 10032, USA.
Mary V Gamble
Columbia University · US

Funding

Folic Acid and Creatine as Therapeutic Approaches for Lowering Blood ArenicR01CA133595 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GAMBLE, MARY · 2009 to 2013
$2.3M
Biomarkers for Arsenic Toxicity: Genetics, Epigenetics and FolateR01ES017875 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GAMBLE, MARY · 2010 to 2013
$1.9M
Nutrients involved 1-carbon metabolism and the methylation of arsenic and DNAR00ES018890 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI HALL, MEGAN NINA · 2012 to 2014
$731k
NCI NIH HHS R01 CA133595NIEHS NIH HHS R00 ES018890NIEHS NIH HHS R01 ES017875
6 · The paper itself

Abstract

Exposure to arsenic (As) through drinking water is a substantial problem worldwide. The methylation of As, a reactive metalloid, generates monomethyl- (MMA) and dimethyl-arsenical (DMA) species. The biochemical pathway that catalyzes these reactions, one-carbon metabolism, is regulated by folate and other micronutrients. Arsenic methylation exerts a critical influence on both its urinary elimination and chemical reactivity. Mice having the As methyltransferase null genotype show reduced urinary As excretion, increased As retention, and severe systemic toxicity. The most toxic As metabolite in vitro is MMA(III), an intermediate in the generation of DMA(V), a much less toxic metabolite. These findings have raised the question of whether As methylation is a detoxification or bioactivation pathway. Results of population-based studies suggest that complete methylation of inorganic As to DMA is associated with reduced risk for As-induced health outcomes, and that nutrients involved in one-carbon metabolism, such as folate, can facilitate As methylation and elimination.

Identifiers

PMID22523489
PMCPMC3317163
OpenAlexW1976276425

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.