Evidence map›Paper›PMID 32150984›Full record

ArticleAntioxidants (Basel, Switzerland)2020

Vitamin C Activates the Folate-Mediated One-Carbon Cycle in C2C12 Myoblasts.

Armando Alcazar Magana, Ralph L Reed, Rony Koluda, Cristobal L Miranda, Claudia S Maier, Jan F Stevens

Open access · goldAbstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

19 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
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  7. Journal of Alzheimer's disease reports · 2024
    Article
  8. Article
  9. Vitamin C and folate status in hereditary fructose intolerance.European journal of clinical nutrition · 2022
    Article
  10. Review
  11. Review
  12. Article
  13. Article
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  15. Article
  16. Review
  17. Frontiers in pharmacology · 2021
    Article
  18. Article
  19. Review
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

6 authors at 1 institution in 1 country.

Armando Alcazar MaganaDepartment of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331, USA.
Ralph L ReedLinus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA.
Rony KoludaDepartment of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331, USA.
Cristobal L MirandaLinus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA.
Claudia S MaierDepartment of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331, USA.
Jan F StevensLinus Pauling Institute, Oregon State University, 2900 SW Campus way, Corvallis, OR 97331, USA.ORCID 0000-0002-6348-9347
Oregon State University · US

Funding

Triple Quadrupole/Linear Ion Trap LC-MS/MS for LPIS10RR027878 · NCRR · OREGON STATE UNIVERSITY · PI STEVENS, JAN FREDERIK · 2010 to 2010
$484k
NIH HHS S10RR027878OSU Foundation Buhler-Wang Research Fund Buhler-Wang Research Fund
6 · The paper itself

Abstract

Vitamin C (L-ascorbic acid, AA) is an essential cellular antioxidant and cofactor for several α-ketoglutarate-dependent dioxygenases. As an antioxidant, AA interacts with vitamin E to control oxidative stress. While several reports suggest an interaction of AA with folate (vitamin B9) in animals and humans, little is known about the nature of the interaction and the underlying molecular mechanisms at the cellular level. We used an untargeted metabolomics approach to study the impact of AA on the metabolome of C2C12 myoblast cells. Compared to untreated cells, treatment of C2C12 cells with AA at 100 µM resulted in enhanced concentrations of folic acid (2.5-fold) and 5-methyl-tetrahydrofolate (5-methyl-THF, 10-fold increase) whereas the relative concentrations of 10-formyl-tetrahydrofolate decreased by >90% upon AA pretreatment, indicative of increased utilization for the biosynthesis of active THF metabolites. The impact of AA on the folate-mediated one-carbon cycle further manifested itself as an increase in the levels of methionine, whose formation from homocysteine is 5-methyl-THF dependent, and an increase in thymidine, whose formation from deoxyuridine monophosphate (dUMP) is dependent on 5,10-methylene-THF. These findings shed new light on the interaction of AA with the folate-mediated one-carbon cycle and partially explain clinical findings that AA supplementation enhances erythrocyte folate status and that it may decrease serum levels of homocysteine, which is considered as a biomarker of cardiovascular disease risk.

Indexed as

ascorbic acidC2C12 cellsfolic acidmass spectrometrymetabolomicsone-carbon metabolismvitamin C

Identifiers

PMID32150984
PMCPMC7139526
OpenAlexW3009515342

What OpenQuestion holds

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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.