Evidence map›Paper›PMID 29916259›Full record

ArticleClinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis

Polymorphisms C677T and A1298C of MTHFR Gene: Homocysteine Levels and Prothrombotic Biomarkers in Coronary and Pulmonary Thromboembolic Disease.

Eulo Lupi-Herrera, María Elena Soto-López, Antonio de Jesús Lugo-Dimas, Marcela Elizabeth Núñez-Martínez, Ricardo Gamboa, Claudia Huesca-Gómez, Lilia Mercedes Sierra-Galán, Verónica Guarner-Lans

Open access · hybridAbstract read
In one paragraph

Article in Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Homocysteinylation of Fibrinogen: A Post-Translational Link to Thrombosis.International journal of molecular sciences · 2025
    Review
  4. Article
  5. Review
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  8. Article
  9. Article
  10. Review
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  12. Article
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  14. Article
  15. Comment on an article: "Coagulopathy in COVID-19".Journal of thrombosis and haemostasis : JTH · 2020
    Article
  16. Article
  17. Article
  18. 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

8 authors at 2 institutions in 1 country.

Eulo Lupi-Herrera1 Cardiology Department, ABC Hospital Observatorio, CDMX, Mexico.
María Elena Soto-López2 Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez and Research Coordination, ABC Hospital Observatorio, CDMX, Mexico.ORCID http://orcid.org/0000-0003-1332-2888
Antonio de Jesús Lugo-Dimas1 Cardiology Department, ABC Hospital Observatorio, CDMX, Mexico.
Marcela Elizabeth Núñez-Martínez3 Central Laboratory Department, ABC Hospital Observatorio, CDMX, Mexico.
Ricardo Gamboa4 Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, CDMX, Mexico.
Claudia Huesca-Gómez4 Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, CDMX, Mexico.
Lilia Mercedes Sierra-Galán5 Cardiology Department ABC Hospital, Santa Fe, CDMX, Mexico.
Verónica Guarner-Lans4 Physiology Department, Instituto Nacional de Cardiología Ignacio Chávez, CDMX, Mexico.
Centro Médico ABC · MXInstituto Nacional de Cardiología · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The activity of the enzyme methylenetetrahydrofolate reductase (MTHFR) determines homocysteine (Hcy) levels, and polymorphisms in its gene affect the activity of the enzyme. Changes in the enzyme's activity may lead to a higher susceptibility to develop arterial and venous thromboembolic disease. The aim was to analyze the relationship between the C677T and A1298C polymorphisms of MTHFR, Hcy levels, and prothrombotic biomarkers in pulmonary embolism (PE) and acute myocardial ischemia (AMI). Clinical files of patients with thromboembolic diseases having complete data and whose doctor had requested an assay to determine the polymorphisms of the MTHFR gene, Hcy levels, and prothrombotic biomarkers were studied to search for the correlation between mutations of the MTHFR gene and Hcy levels in the different diseases. We included 334 files: 158 were from women and 176 from men (51 [19 SD] years). Sixty-three percent have had thrombosis, 8% AMI, and 31% PE. Patients with thrombosis had elevated frequency of the C677T polymorphism. The CC genotype was higher than the TT genotype ( P = .003) and CT versus the TT ( P = .009). In patients with PE, the CC genotype was higher than the TT genotype ( P = .038). Pulmonary embolism with massive and submassive events had predominant genotypes 677 TT ( P = .003) and the AA 1298 ( P = .017). Elevated Hcy levels in the presence of the T allele in the C677T gene and of the A allele in the A1298C gene are associated with AMI and massive and submassive PE.

Indexed as

BiomarkersCoronary Artery DiseaseFemaleGenetic Predisposition to DiseaseHomocysteineHumansMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedPolymorphism, Single NucleotidePulmonary EmbolismRetrospective StudiesBiomarkersHomocysteineMethylenetetrahydrofolate Reductase (NADPH2)coronary diseaseMTHFRpolymorphisms C677T and A1298Cpulmonary thromboembolism

Identifiers

PMID29916259
PMCPMC6714945
OpenAlexW2809517595

What OpenQuestion holds

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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.