Evidence map›Paper›PMID 24458267›Full record

ArticleEuropean journal of nutrition2014

MTHFR C677T genotype and cardiovascular risk in a general population without mandatory folic acid fortification.

Lise Lotte N Husemoen, Tea Skaaby, Torben Jørgensen, Betina H Thuesen, Mogens Fenger, Niels Grarup, Camilla H Sandholt, Torben Hansen, Oluf Pedersen, Allan Linneberg

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In one paragraph

Article in European journal of nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 3 pooled it
2.6field-weighted citation impact, top 12% 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

23 citing papers in PubMed, 3 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Pooled it
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  4. Trial
  5. Review
  6. Article
  7. Article
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  14. International journal of hypertension · 2022
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  15. Association BetweenFrontiers in genetics · 2021
    Review
  16. Article
  17. Biomarker insights · 2019
    Article
  18. Article
  19. 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

10 authors at 6 institutions in 1 country.

Lise Lotte N HusemoenResearch Centre for Prevention and Health, Glostrup University Hospital, The Capital Region of Denmark, Nordre Ringvej 57, 2600, Glostrup, Denmark, lloh@regionh.dk.
Tea Skaaby
Torben Jørgensen
Betina H Thuesen
Mogens Fenger
Niels Grarup
Camilla H Sandholt
Torben Hansen
Oluf Pedersen
Allan Linneberg
Glostrup Hospital · DKCapital Region of Denmark · DKNovo Nordisk Foundation · DKHvidovre Hospital · DKUniversity of Copenhagen · DKUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMeta-analyses have suggested an effect of MTHFR C677T genotype (rs1801133), a proxy for blood total homocysteine, on cardiovascular disease (CVD) in populations with low population dietary folate. The aim was to examine the association and effect modification by serum folate and vitamin B12 levels between MTHFR and CVD-related outcomes in a general population with no mandatory folic acid fortification policy.

methodsThe study population included 13,748 adults retrieved from pooling of four population-based studies conducted in Denmark. MTHFR genotype, serum folate (measured in approximately 9,356 individuals), and serum vitamin B12 (9,215 individuals), hypertension, and dyslipidemia were measured at baseline, and participants were followed for a mean of 10.5-11.7 years in central registries for diagnoses of stroke (623 incidents), ischaemic heart disease (IHD) (835 incidents), and all-cause mortality (1,272 incidents).

resultsThe MTHFR genotype (TT vs. CC/CT) was not associated with hypertension [OR (95% CI) 1.09 (0.95-1.25)], dyslipidemia [OR (95% CI) 0.97 (0.84-1.11)], stroke [HR (95% CI) 0.92 (0.69-1.23)], and all-cause mortality [HR (95% CI) 0.94 (0.77-1.14)], either overall, or in participants with low serum folate or B12 status (P values for interactions 0.15-0.94). Individuals with the MTHFR TT genotype had a higher risk of IHD (HR (95% CI) 1.38 (1.11-1.71)), but this association was not modified by folate status (P value for interaction 0.45).

conclusionsOur results do not support a causal relationship between homocysteine and CVD. However, we cannot exclude a direct causal effect of MTHFR C677T genotype on IHD.

Indexed as

AdolescentAdultAgedCardiovascular DiseasesCholesterol, HDLCholesterol, LDLCohort StudiesDenmarkDyslipidemiasFemaleFolic AcidFollow-Up StudiesGenotypeGenotyping TechniquesHomocysteineHumansCholesterol, HDLCholesterol, LDLFolic AcidHomocysteineMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, humanTriglyceridesVitamin B 12

Identifiers

PMID24458267
OpenAlexW1983174663

What OpenQuestion holds

Textmetadata
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.