Evidence map›Paper›PMID 25322900›Full record

ArticleGenes & nutrition2014

Riboflavin status modifies the effects of methylenetetrahydrofolate reductase (MTHFR) and methionine synthase reductase (MTRR) polymorphisms on homocysteine.

Carlos J García-Minguillán, Joan D Fernandez-Ballart, Santiago Ceruelo, Lídia Ríos, Olalla Bueno, Maria Isabel Berrocal-Zaragoza, Anne M Molloy, Per M Ueland, Klaus Meyer, Michelle M Murphy

Open access · bronzeAbstract read
In one paragraph

Article in Genes & nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 36 citations in OpenAlex.

  1. Trial
  2. The Role of GCH1 Deficiency and Tetrahydrobiopterin in Mental Health.International journal of molecular sciences · 2025
    Article
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  7. Another indication for the use of oral vitamin B-12 supplementation.The American journal of clinical nutrition · 2018
    Article
  8. Review
  9. Dietary Reference Values for riboflavin.EFSA journal. European Food Safety Authority · 2017
    Article
  10. Review
  11. Review
  12. Article
  13. Genotype, B-vitamin status, and androgens affect spaceflight-induced ophthalmic changes.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2016
    Article
  14. 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

10 authors at 6 institutions in 3 countries.

Carlos J García-MinguillánArea of Preventive Medicine and Public Health, Faculty of Medicine and Health Sciences, IISPV, Universitat Rovira i Virgili (URV), C/Sant Llorenç, 21, 43201, Reus, Spain.
Joan D Fernandez-Ballart
Santiago Ceruelo
Lídia Ríos
Olalla Bueno
Maria Isabel Berrocal-Zaragoza
Anne M Molloy
Per M Ueland
Klaus Meyer
Michelle M Murphy
Institut d'Investigació Sanitària Pere Virgili · ESInstituto de Salud Carlos III · ESBevital (Norway) · NOTrinity College Dublin · IEUniversidad Rovira i Virgili · ESUniversity of Bergen · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methylenetetrahydrofolate reductase (MTHFR) and methionine synthase reductase (MTRR), riboflavin-dependent enzymes, participate in homocysteine metabolism. Reported effects of riboflavin status on the association between the MTHFR 677C>T polymorphism and homocysteine vary, and the effects of the MTRR 66A>G or MTRR 524C>T polymorphisms on homocysteine are unclear. We tested the hypothesis that the effects of the MTHFR 677C>T, MTRR 66A>G and MTRR 524C>T polymorphisms on fasting plasma total homocysteine (tHcy) depend on riboflavin status (erythrocyte glutathionine reductase activation coefficient, optimum: <1.2; marginally deficient: 1.2-1.4; deficient: ≥1.4) in 771 adults aged 18-75 years. MTHFR 677T allele carriers with middle or low tertile plasma folate (<14.7 nmol/L) had 8.2 % higher tHcy compared to the 677CC genotype (p < 0.01). This effect was eliminated when riboflavin status was optimal (p for interaction: 0.048). In the lowest cobalamin quartile (≤273 pmol/L), riboflavin status modifies the relationship between the MTRR 66 A>G polymorphism and tHcy (p for interaction: 0.034). tHcy was 6.6 % higher in MTRR 66G allele carriers compared to the 66AA genotype with marginally deficient or optimal riboflavin status, but there was no difference when riboflavin status was deficient (p for interaction: 0.059). tHcy was 13.7 % higher in MTRR 524T allele carriers compared to the 524CC genotype when cobalamin status was low (p < 0.01), but no difference was observed when we stratified by riboflavin status. The effect of the MTHFR 677C>T polymorphism on tHcy depends on riboflavin status, that of the MTRR 66A>G polymorphism on cobalamin and riboflavin status and that of the MTRR 524C>T polymorphism on cobalamin status.

Identifiers

PMID25322900
PMCPMC4235830
OpenAlexW2058753775

What OpenQuestion holds

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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.