Evidence map›Paper›PMID 23671874›Full record

ArticleJournal of diabetes research2013

Angiogenic and vasculogenic factors in the vitreous from patients with proliferative diabetic retinopathy.

Ahmed M Abu El-Asrar, Mohd Imtiaz Nawaz, Dustan Kangave, Mohammed Mairaj Siddiquei, Karel Geboes

Open access · goldAbstract read
In one paragraph

Article in Journal of diabetes research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
5.2field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 49 citations in OpenAlex.

  1. Inflammatory Biomarkers in Diabetic Macular Edema.Journal of clinical medicine · 2026
    Review
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Endothelial Dysfunction in Diabetic Retinopathy.Frontiers in endocrinology · 2020
    Review
  8. Article
  9. Article
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  11. Article
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  15. Article
  16. 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

5 authors at 3 institutions in 2 countries.

Ahmed M Abu El-AsrarDepartment of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia ; Department of Ophthalmology, King Abdulaziz University Hospital, Old Airport Road, P.O. Box 245, Riyadh 11411, Saudi Arabia.
Mohd Imtiaz Nawaz
Dustan Kangave
Mohammed Mairaj Siddiquei
Karel Geboes
King Abdulaziz University · SAKing Saud University · SAKU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was conducted to determine levels of angiogenic and endothelial progenitor cell mobilizing (vasculogenic) factors in vitreous fluid from proliferative diabetic retinopathy (PDR) patients and correlate their levels with clinical disease activity. Vascular endothelial growth factor (VEGF), soluble vascular endothelial growth factor receptor-2 (sVEGFR-2), stem cell factor (SCF), soluble c-kit (s-kit), endothelial nitric oxide synthase (eNOS), and prostaglandin E2 (PGE2) levels were measured by ELISA in vitreous samples from 34 PDR and 15 nondiabetic patients. eNOS was not detected. VEGF, sVEGFR-2, SCF, and s-kit levels were significantly higher in PDR with active neovascularization compared with quiescent PDR and nondiabetic patients (P < 0.001; 0.007; 0.001; <0.001, resp.). In contrast, PGE2 levels were significantly higher in nondiabetic patients compared with PDR patients (P < 0.001). There were significant correlations between levels of sVEGFR-2 versus SCF (r = 0.950, P < 0.001), sVEGFR-2 versus s-kit (r = 0.941, P < 0.001), and SCF versus s-kit (r = 0.970, P < 0.001). Our findings suggest that upregulation of VEGF, sVEGFR-2, SCF, and s-kit supports the contributions of angiogenesis and vasculogenesis in pathogenesis of PDR.

Identifiers

PMID23671874
PMCPMC3647558
OpenAlexW2015038489

What OpenQuestion holds

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LicenceCC BY
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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.