Evidence map›Paper›PMID 25060515›Full record

ArticleZeitschrift fur Rheumatologie2015

The effect of IL-4 and MTHFR gene variants in ankylosing spondylitis.

S Yigit, A Inanir, S Tural, B Filiz, A Tekcan

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In one paragraph

Article in Zeitschrift fur Rheumatologie, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.5field-weighted citation impact, top 29% 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

1 citing paper in PubMed, 5 citations in OpenAlex.

  1. 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

5 authors at 2 institutions in 1 country.

S YigitFaculty of Medicine, Department of Medical Biology, Gaziosmanpaşa University, Tokat, Turkey, serbulent.yigit@gmail.com.
A Inanir
S Tural
B Filiz
A Tekcan
Tokat Gaziosmanpaşa Üniversitesi · TROndokuz Mayıs University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAnkylosing Spondylitis (AS) is a chronic inflammatory rheumatic disease that characteristically affects the sacroiliac joints and the spine. The exact pathogenesis of AS remains poorly understood, but genetic factors play a key role in disease development. Several genes have been consistently associated with susceptibility to AS. This study was conducted in Turkish AS patients to determine the frequency of the methylenetetrahydrofolate reductase (MTHFR) gene C677T and interleukin-4 (IL-4) gene 70 bp variable number of tandem repeats (VNTR) variants, as well as their association with clinical characteristics.

methodsGenomic DNA obtained from 272 persons (122 AS patients and 150 healthy controls) was used in this study. Genomic DNA was isolated and genotyped using a polymerase chain reaction (PCR)-based restriction fragment length polymorphism (RFLP) assay for the MTHFR C677T and IL-4 70 bp VNTR gene variants, which were determined using specific PCR primers.

resultsThere was statistically significant difference between the groups with respect to MTHFR genotype distribution (p = 0.02) and allele frequencies (p < 0.001). When we examined MTHFR and IL-4 genotype frequencies according to clinical characteristics, we found an association between the homozygous MTHFR TT genotype and ocular involvement, although this did not reach statistical significance (p = 0.02). However, we did not find any difference between the groups with respect to IL-4 genotype distribution or allele frequencies and clinical characteristics (p > 0.05).

conclusionOur findings suggest that there is an association of the MTHFR gene C677T polymorphism with the susceptibility of a person for development of AS. However, the IL-4 gene is not associated with AS within the same population.

Indexed as

AdolescentAdultAgedFemaleGenetic MarkersGenetic Predisposition to DiseaseGenetic VariationHumansInterleukin-4MaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedMinisatellite RepeatsPolymorphism, Single NucleotidePrevalenceSpondylitis, AnkylosingGenetic MarkersIL4 protein, humanInterleukin-4Methylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, human

Identifiers

PMID25060515
OpenAlexW2469241558

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.