Evidence map›Paper›PMID 31651110›Full record

Observational studyTurkish journal of medical sciences2019

The frequency of Raynaud’s phenomenon in patients with methylenetetrahydrofolate reductase gene mutation and hyperhomocysteinemia

Kadir Serkan Yalçın, Ali Koşar

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Turkish journal of medical sciences, 2019. 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
0.4field-weighted citation impact, top 35% 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, 2 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

2 authors at 1 institution in 1 country.

Kadir Serkan YalçınDepartment of Internal Diseases, Lokman Hekim Ankara Hospital, Ankara, TurkeyORCID 0000-0002-8028-1070
Ali KoşarDepartment of Hematology, Lokman Hekim Ankara Hospital, Ankara, TurkeyORCID 0000-0002-0720-1791
Lokman Hekim Üniversitesi · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background/aim: Raynaud’s phenomenon (RP) is not a rare health problem; global prevalence is about 3%–20%. Etiology and pathophysiology of this pathology has not been clarified. There are many precipitating factors resulting in RP. Hyperhomocysteinemia resulting from methylenetetrahydrofolate reductase (MTHFR) gene mutationmay have a role in its etiology. The aim of this study was to observe the frequency of RP in patients with MTFHR gene mutation and hyperhomocysteinemia. Possible relationships among vitamin B12, folic acid, complete blood count (leukocytes and platelets), and c-reactive protein levels and RP were also analyzed. Materials and methods: A total of 388 patients admitted to the internal medicine, hematology, and obstetric clinics of a university hospital between January 2012 and April 2013 ranging in age from 21 to 83 (mean age 38.16 ± 13.1) were enrolled in the study. Eighty-five (21.9%) of the patients were male and 303 (78.1%) were female. MTHFR gene mutation was analyzed in 388 patients; 52 (13.4%) were homozygous, 275 (70.9%) were heterozygous, and 61 (15.7%) were found to be negative for the MTHFR gene mutation and accepted as a control group. Vitamin B12, folic acid, complete blood count (leukocytes and platelets), and c-reactive protein levels were also analyzed. Results: Homocysteine levels were higher in both heterozygous and homozygous groups (P < 0.05). RP was more frequently observed in patients with elevated homocysteine levels (P < 0.05; X2 = 14.51). There was no significant relationship in other parameters studied. Conclusion: RP was more frequently observed in the groups with the MTHFR mutation and hyperhomocysteinemia. Serum homocysteine levels in patients with RP may be helpful for diagnosis.

Indexed as

MutationAdultAgedAged, 80 and overFemaleHumansHyperhomocysteinemiaMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedProspective StudiesRaynaud DiseaseYoung AdultMethylenetetrahydrofolate Reductase (NADPH2)hyperhomocysteinemiamethylenetetrahydrofolate reductasemutationRaynaud’s phenomenon

Identifiers

PMID31651110
PMCPMC7018243
OpenAlexW2982227481

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.