Evidence map›Paper›PMID 22289291›Full record

ArticleThe British journal of ophthalmology2012

A shift in the balance of vascular endothelial growth factor and connective tissue growth factor by bevacizumab causes the angiofibrotic switch in proliferative diabetic retinopathy.

Rob J Van Geest, Sarit Y Lesnik-Oberstein, H Stevie Tan, Marco Mura, Roel Goldschmeding, Cornelis J F Van Noorden, Ingeborg Klaassen, Reinier O Schlingemann

Open access · hybridAbstract readComparative Study
In one paragraph

Article in The British journal of ophthalmology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 1 pooled it
9.4field-weighted citation impact, top 2% 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

88 citing papers in PubMed, 1 synthesis or guideline pooled it, 141 citations in OpenAlex.

  1. Pooled it
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  7. Review
  8. A literature review of macular holes in age-related macular degeneration: insights into the pathogenesis, prognosis and surgical outcomes.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
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  14. Management of fibrosis in neovascular age-related macular degeneration.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Review
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28 more citing papers are in PubMed but not listed here.

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.

Rob J Van GeestDepartment of Ophthalmology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Sarit Y Lesnik-Oberstein
H Stevie Tan
Marco Mura
Roel Goldschmeding
Cornelis J F Van Noorden
Ingeborg Klaassen
Reinier O Schlingemann
University of Amsterdam · NLAcademic Medical Center · NLUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn proliferative diabetic retinopathy (PDR), vascular endothelial growth factor (VEGF) and connective tissue growth factor (CTGF) may cause blindness by neovascularisation followed by fibrosis of the retina. It has previously been shown that a shift in the balance between levels of CTGF and VEGF in the eye is associated with this angiofibrotic switch. This study investigated whether anti-VEGF agents induce accelerated fibrosis in patients with PDR, as predicted by this model.

methodsCTGF and VEGF levels were measured by ELISA in 52 vitreous samples of PDR patients, of which 24 patients had received intravitreal bevacizumab 1 week to 3 months before vitrectomy, and were correlated with the degree of vitreoretinal fibrosis as determined clinically and intra-operatively.

resultsCTGF correlated positively, and VEGF correlated negatively with the degree of fibrosis. The CTGF/VEGF ratio was the strongest predictor of fibrosis. Clinically, increased fibrosis was observed after intravitreal bevacizumab.

conclusionsThese results confirm that the CTGF/VEGF ratio is a strong predictor of vitreoretinal fibrosis in PDR, and show that intravitreal anti-VEGF treatment causes increased fibrosis in PDR patients. These findings provide strong support for the model that the balance of CTGF and VEGF determines the angiofibrotic switch, and identify CTGF as a possible therapeutic target in the clinical management of PDR.

Indexed as

Angiogenesis InhibitorsAntibodies, Monoclonal, HumanizedBevacizumabConnective Tissue Growth FactorDiabetic RetinopathyDisease ProgressionEnzyme-Linked Immunosorbent AssayFemaleFollow-Up StudiesHumansIntravitreal InjectionsMaleMiddle AgedRetinal NeovascularizationVascular Endothelial Growth Factor AVitrectomyAngiogenesis InhibitorsAntibodies, Monoclonal, HumanizedBevacizumabConnective Tissue Growth FactorVascular Endothelial Growth Factor A

Identifiers

PMID22289291
PMCPMC3308470
OpenAlexW2132899855

What OpenQuestion holds

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LicenceCC BY-NC
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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.