Evidence map›Paper›PMID 27846231›Full record

ArticlePloS one2016

Analysis of VEGFA Variants and Changes in VEGF Levels Underscores the Contribution of VEGF to Polycystic Ovary Syndrome.

Wassim Y Almawi, Emily Gammoh, Zainab H Malalla, Safa A Al-Madhi

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
3.1field-weighted citation impact, top 9% 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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 37 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Wassim Y AlmawiDepartment of Medical Biochemistry, Arabian Gulf University, Manama, Bahrain.
Emily GammohDepartment of Medical Biochemistry, Arabian Gulf University, Manama, Bahrain.
Zainab H MalallaDepartment of Medical Biochemistry, Arabian Gulf University, Manama, Bahrain.
Safa A Al-MadhiDepartment of Medical Biochemistry, Arabian Gulf University, Manama, Bahrain.
Arabian Gulf University · BH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVascular endothelial growth factor (VEGF) contributes to the pathogenesis of polycystic ovary syndrome (PCOS), and genetic variations in VEGFA gene were suggested to contribute to VEGF secretion and PCOS.

aimTo evaluate the association of altered VEGF levels, stemming from the presence of specific VEGFA variants, with altered risk of PCOS. SUBJECTS AND

methodsRetrospective case-control study, performed between 2012-2015. Study subjects comprised 382 women with PCOS, and 393 control subjects. ELISA measured VEGF levels; genotyping of VEGFA variants was done by allelic exclusion.

resultsAmong the 12 tested VEGFA SNPs, minor allele frequency of only rs3025020 was significantly higher in PCOS cases than control women. Increased and reduced PCOS risk was seen with rs3025020 and rs2010963 genotypes, respectively. Increases and reduction in VEGF levels were associated with rs3025020 and rs2010963, respectively. Increased fasting insulin and HOMA-IR, and bioactive testosterone were linked with rs3025020, while carriage of rs2010963 was linked with reduction in fasting insulin, and free and bioactive testosterone. Of the 12 VEGFA variants, 9 were in LD, thus allowing construction of 9-locus haplotypes. Increased frequency of CAACAGCGA haplotype was seen in PCOS cases, after controlling for BMI, free and bioactive testosterone, SHBG, free insulin and HOMA-IR.

conclusionThis study confirms the contribution of altered VEGF secretion, resulting from genetic variation in VEGFA gene into the pathogenesis of PCOS. This supports a role for VEGF as PCOS candidate locus.

Indexed as

Genetic Predisposition to DiseaseAdultBiomarkersCase-Control StudiesFemaleHaplotypesHumansLinkage DisequilibriumPolycystic Ovary SyndromePolymorphism, Single NucleotideVascular Endothelial Growth Factor ABiomarkersVascular Endothelial Growth Factor A

Identifiers

PMID27846231
PMCPMC5112863
OpenAlexW2552277948

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.