Evidence map›Paper›PMID 23513062›Full record

ArticleInvestigative ophthalmology & visual science2013

Pigment epithelium-derived factor is retinal ganglion cell neuroprotective and axogenic after optic nerve crush injury.

Vasanthy Vigneswara, Martin Berry, Ann Logan, Zubair Ahmed

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Investigative ophthalmology & visual science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 59 citations in OpenAlex.

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  9. Roles of growth factors in eye development and ophthalmic diseases.Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2022
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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.

Vasanthy VigneswaraNeurotrauma and Neurodegeneration Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom.
Martin Berry
Ann Logan
Zubair Ahmed
University of Birmingham · GB

Funding

Wellcome TrustWellcome Trust 092539/Z/10/Z
6 · The paper itself

Abstract

purposeTo investigate neuroprotective and axogenic properties of pigment epithelium-derived factor (PEDF) in retinal ganglion cells (RGC) in vitro and in vivo.

methodsAdult rat retinal cultures were treated with combinations of PBS and PEDF with or without a cell permeable analogue of cAMP, and RGC survival and neurite lengths quantified. The optic nerves of anesthetised rats were also crushed intraorbitally to transect all RGC axons followed by intravitreal injections of either PBS, PEDF, or cAMP+PEDF every 7 days. RGC were back filled with FluoroGold to quantify RGC survival and longitudinal optic nerve sections were stained with GAP43 antibodies to detect regenerating RGC axons.

resultsAn optimal dose of 2.5 × 10(-5) μg/μL, promoted 65% more RGC survival than controls in vitro, increasing by 4.4- and 5-fold the number of RGC with neurites and the mean neurite length, respectively. Addition of cAMP with or without PEDF did not potentiate RGC survival or the mean number of RGC with neurites, but enhanced RGC neurite length by 1.4-fold, compared with PEDF alone. After optic nerve crush (ONC), PEDF protected RGC from apoptosis and increased the numbers of regenerating RGC axons in the optic nerve by 4.6- and 3.4-fold, respectively when compared with controls. cAMP did not enhance PEDF-induced RGC neuroprotection, but potentiated its neuroregenerative effects by 2- to 3-fold, increasing the number of RGC axons regenerating at 500 and 1000 μm from the lesions site.

conclusionsThis study is the first to demonstrate that PEDF enhances both RGC survival and axon regeneration in vitro and in vivo.

Indexed as

AnimalsAxonsCell SurvivalDisease Models, AnimalEye ProteinsFemaleNerve CrushNerve Growth FactorsNerve RegenerationOptic NerveOptic Nerve InjuriesPigment Epithelium-Derived FactorProtease InhibitorsRatsRats, Sprague-DawleyRetinal Ganglion CellsEye ProteinsNerve Growth FactorsPigment Epithelium-Derived FactorProtease InhibitorsSerpins

Identifiers

PMID23513062
PMCPMC3630817
OpenAlexW2076771890

What OpenQuestion 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 OpenQuestion graph.