Evidence map›Paper›PMID 11993593›Full record

ArticleIrish journal of medical science

Thermolabile methylenetetrahydrofolate reductase (C677T): frequency in the Irish population.

L A Mynett-Johnson, C Keenan, I L Black, W J Livingstone, M Lawler, H M Roche, B White, M J Gibney, P McKeon, O P Smith

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Article in Irish journal of medical science. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

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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

2 citing papers in PubMed.

  1. Distribution ofIndian journal of clinical biochemistry : IJCB · 2017
    Article
  2. Article
4 · The record

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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.

L A Mynett-JohnsonDepartment of Genetics, Smurfit Institute, Trinity College, Dublin, Ireland.
C Keenan
I L Black
W J Livingstone
M Lawler
H M Roche
B White
M J Gibney
P McKeon
O P Smith

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe genetic variation which underlies the thermolability and low enzyme activity of 5,10-methylenetetrahydrofolate reductase (MTHFR; C677T) has been extensively studied in many populations, including the Irish population.

aimTo describe the examination of the C677T substitution in two new control samples drawn from the Irish population.

methodsA collection of 487 serum samples was obtained through the blood transfusion services of both the Republic of Ireland and Northern Ireland and a further 115 samples from volunteers.

resultsIn both samples, the frequency of the thermolabile/low enzyme activity allele (T) was higher than that previously reported for the Irish population.

conclusionThis finding thus supports the need for a greater use of internal control/family-based association studies, as opposed to the classic case control study design, when assessing the contribution of the MTHFR T allele to disease processes.

Indexed as

AdultAllelesFemaleGene FrequencyGenetic VariationHumansIrelandMaleMethylenetetrahydrofolate Reductase (NADPH2)Northern IrelandOxidoreductases Acting on CH-NH Group DonorsMethylenetetrahydrofolate Reductase (NADPH2)Oxidoreductases Acting on CH-NH Group Donors

Identifiers

PMID11993593

What OpenQuestion holds

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Registered trials

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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.