Evidence map›Paper›PMID 34387724›Full record

SynthesisArchives of gynecology and obstetrics2021

A meta-analysis for association of eNOS VNTR 4b/a,  - 786 T > C and + 894G > T polymorphisms with risk of recurrent pregnancy loss.

Hossein Golestanpour, Reza Bahrami, Seyed Alireza Dastgheib, Razieh Sadat Tabatabaei, Atiyeh Javaheri, Mojgan Karimi-Zarchi, Seyed Reza Mirjalili, Hossein Neamatzadeh

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In one paragraph

Synthesis in Archives of gynecology and obstetrics, 2021. 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 32% 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, 3 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

8 authors at 3 institutions in 1 country.

Hossein GolestanpourDepartment of Genetics, Marvdasht Branch, Azad University, Marvdasht, Iran.
Reza BahramiNeonatal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Seyed Alireza DastgheibDepartment of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. dastgheibsa@gmail.com.ORCID 0000-0003-4781-301X
Razieh Sadat TabatabaeiDepartment of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Atiyeh JavaheriDepartment of Obstetrics and Gynecology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Mojgan Karimi-ZarchiDepartment of Obstetrics and Gynecology, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran.
Seyed Reza MirjaliliMother and Newborn Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Hossein NeamatzadehMother and Newborn Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Shahid Sadoughi University of Medical Sciences and Health Services · IRShiraz University of Medical Sciences · IRIran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe association of polymorphisms at nitric oxide synthases (eNOS) gene with recurrent pregnancy loss (RPL) susceptibility has been the focus of attention in several studies. However, the conclusions have been divergent and controversial. Therefore, we performed this study to precisely evaluate the association of eNOS polymorphisms with the risk of RPL.

methodsA universal search in PubMed, Web of Knowledge, SciELO, MedRxiv, Scopus and web of Science was performed to identify relevant studies up to January 25, 2020.

resultsA total of 39 eligible studies including 15 studies with 2274 cases and 1933 controls on VNTR 4b/a, nine studies with 1640 cases and 1268 controls on -786C > T, and 15 studies with 2660 cases and 2557 controls on + 894G > T polymorphism were selected. Pooled data revealed that eNOS VNTR 4b/a (dominant model: OR = 1.174, 95% CI 1.021-1.350, p = 0.025) and + 894G > T (allele model: OR = 1.278, 95% CI 1.024-1.595, p = 0.030; homozygote model: OR = 1.442, 95% CI 1.084-1.917, p = 0.012; dominant model: OR = 1.305, 95% CI 1.006-1.693, p = 0.045; and recessive model: OR = 1.378, 95% CI 1.045-1.817, p = 0.023) polymorphisms were significantly associated with an increased risk of RPL, but not  - 786 T > C. Stratified analysis by ethnicity revealed that the eNOS + 894G > T was associated with RPL risk in Asians.

conclusionsTo sum up, our results indicated that the eNOS VNTR 4b/a and + 894G > T polymorphisms might be contributing to RPL development, but not the  - 786C > T polymorphism.

Indexed as

Genetic Predisposition to DiseaseAbortion, HabitualAllelesCase-Control StudiesFemaleHumansNitric Oxide Synthase Type IIIPolymorphism, GeneticPolymorphism, Single NucleotidePregnancyNitric Oxide Synthase Type IIINOS3 protein, humaneNOSMiscarriageNitric oxidePolymorphismRecurrent pregnancy loss

Identifiers

PMID34387724
OpenAlexW3189295852

What Socratic holds

Textmetadata
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 Socratic graph.