Evidence map›Paper›PMID 15300362›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2005

Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is associated with osteoporotic vertebral fractures, but is a weak predictor of BMD.

Morten M Villadsen, Mathias H Bünger, Mette Carstens, Liselotte Stenkjaer, Bente L Langdahl

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Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
4.4field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

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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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 72 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Association of MTHFR C667T polymorphism with bone mineral density and fracture risk: an updated meta-analysis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2012
    Pooled it
  4. Article
  5. Turkish journal of biology = Turk biyoloji dergisi · 2022
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  6. Review
  7. The Effects of Homocysteine on the Skeleton.Current osteoporosis reports · 2018
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  8. Article
  9. A comprehensive overview on osteoporosis and its risk factors.Therapeutics and clinical risk management · 2018
    Review
  10. Article
  11. Article
  12. Article
  13. Genome-wide pleiotropy of osteoporosis-related phenotypes: the Framingham Study.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2010
    Article
  14. Review
  15. The genetics of response to estrogen treatment.Clinical cases in mineral and bone metabolism : the official journal of the Italian Society of Osteoporosis, Mineral Metabolism, and Skeletal Diseases · 2009
    Article
  16. Article
  17. Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is associated with spinal BMD in 9-year-old children.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2009
    Article
  18. Article
  19. Article
  20. Genetics of the musculoskeletal system: a pleiotropic approach.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2008
    Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

5 authors.

Morten M VilladsenDepartment of Endocrinology and Metabolism, Aarhus Amtssygehus, DK 8000, Aarhus C, Denmark.
Mathias H Bünger
Mette Carstens
Liselotte Stenkjaer
Bente L Langdahl

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteoporosis is a common disease with a strong genetic component. Linkage studies have suggested linkage between BMD and loci on chromosome 1. The MTHFR gene is located on chromosome 1. MTHFR catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methylenetetrahydrofolate, which is used for homocysteine methylation to methionine. The rare genotype (TT) of the C677T polymorphism has previously been demonstrated to be associated with increased plasma homocysteine levels in individuals with inadequate plasma folate levels. Recently, the TT genotype has been found to be associated with reduced bone mass. We therefore examined if the C677T polymorphism in the MTHFR gene is associated with changes in bone mass and risk of osteoporotic fractures in 388 osteoporotic patients and 336 normal individuals. The distributions of the genotypes CC, CT and TT in women with osteoporotic vertebral fractures and normal controls were 43.5%, 42.2% and 14.3% and 52.0%, 42.0% and 8.0%, respectively, chi2 = 5.62, P = 0.06. Since studies of the functionality of this polymorphism have revealed that only the TT genotype is associated with biochemical changes, we also compared the prevalence of the TT genotype versus the CT- and CC genotypes in patients and controls and found that the TT genotype is significantly more common in women with vertebral fractures (14.3%) compared with normal controls (8.0%), chi2 = 4.31, P < 0.05. Logistic regression analysis demonstrated that vertebral fractures were significantly associated with BMD (lumbar spine) and height but only marginally with the MTHFR genotype (P = 0.06). Multiple linear regression analysis revealed that weight, age and the MTHFR polymorphism were predictors of lumbar spine BMD in women. However, age- and gender-corrected BMD of the lumbar spine and the hip was not significantly different between MTHFR genotypes. Furthermore, individuals with the TT genotype did not have BMD significantly lower than the combined group of individuals with the CT- or CC genotypes. In conclusion, we have demonstrated that the rare TT genotype of the C677T polymorphism in the MTHFR gene is associated with increased risk of osteoporotic fractures in women and a weak predictor of lumbar spine BMD.

Indexed as

Polymorphism, GeneticAdultAgedAged, 80 and overBone DensityCase-Control StudiesFemaleGenetic Predisposition to DiseaseGenotypeHumansLinear ModelsLumbar VertebraeMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedOsteoporosisMethylenetetrahydrofolate Reductase (NADPH2)

Identifiers

PMID15300362
OpenAlexW2010915311

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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.