Evidence map›Paper›PMID 28481466›Full record

ArticleJournal of clinical laboratory analysis2018

Investigation of MTHFR gene C677T polymorphism in cardiac syndrome X patients.

Cemre Kandaz, Burak Önal, Deniz Özen, Bülent Demir, A Gökhan Akkan, Sibel Özyazgan

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2018. 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, top 93% 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

2 citing papers in PubMed, 1 citations in OpenAlex.

  1. Single Nucleotide Polymorphisms in Coronary Microvascular Dysfunction.Journal of the American Heart Association · 2024
    Review
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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

6 authors at 3 institutions in 1 country.

Cemre KandazDepartment of Medical Pharmacology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Burak ÖnalDepartment of Pharmacology and Clinical Pharmacology, Faculty of Medicine, Istinye University, Istanbul, Turkey.ORCID http://orcid.org/0000-0002-6392-0889
Deniz ÖzenDepartment of Medical Pharmacology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Bülent DemirDepartment of Cardiology, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey.
A Gökhan AkkanDepartment of Medical Pharmacology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Sibel ÖzyazganDepartment of Medical Pharmacology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey.
Istanbul University · TRBakırköy Dr.Sadi Konuk Eğitim ve Araştırma Hastanesi · TRIstinye University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDefinition of Cardiac Syndrome X (CSX) refers to groups of patients with positive exercise stress test and normal epicardial coronary arteries on coronary angiography accompanied by chest pain. Although the etiology of CSX is not completely understood, there is a common consensus that its pathophysiology may be associated with endothelial dysfunction resulting in impaired coronary flow. Some polymorphisms observed on the MTHFR gene cause inactivation of the MTHFR enzyme, leading to hyperhomocysteinemia and homocysteinuria, which are prominent risk factors of cardiovascular and cerebrovascular diseases. It was aimed to explain the association of the endothelial dysfunction, which is thought to play a role in the pathophysiology of CSX, with C677T polymorphism on MTHFR gene based on genetic basis.

methodsA total of 176 CSX patients and 196 healthy subjects with similar age and clinical features were compared in terms of C677T polymorphism of the MTHFR gene. RESULTS AND

conclusionThere was no significant difference in terms of MTHFR gene C677T polymorphism between CSX patients and controls. When genotypic distribution was compared based on gender in both patients and controls, no significant difference was found between male and female subjects (P>.05). As fasting blood sugar and urea values were significantly higher, alanine aminotransferase and gamma-glutamyl transferase levels were significantly lower in the patients than the controls (P<.05). Described family story of the patients was significantly higher than the controls (P<.05). These suggest that homocysteine metabolism in CSX is not directly related to the endothelial dysfunction and thus the effect on the microvascular circulation.

Indexed as

AdultCase-Control StudiesFemaleGenetic Predisposition to DiseaseHumansMaleMethylenetetrahydrofolate Reductase (NADPH2)Microvascular AnginaMiddle AgedPolymorphism, GeneticMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, humanC677Tcardiac syndrome Xmicrovascular dysfunctionMTHFRpolymorphism

Identifiers

PMID28481466
PMCPMC6817037
OpenAlexW2612602963

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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.