Evidence map›Paper›PMID 19628743›Full record

ArticleInvestigative ophthalmology & visual science2009

Delivery of antioxidant enzyme genes to protect against ischemia/reperfusion-induced injury to retinal microvasculature.

Baihua Chen, Sergio Caballero, Soojung Seo, Maria B Grant, Alfred S Lewin

Abstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Role of Flavonoids in the Treatment of Iron Overload.Frontiers in cell and developmental biology · 2021
    Review
  5. Article
  6. Article
  7. Article
  8. Timing of Antioxidant Gene Therapy: Implications for Treating Dry AMD.Investigative ophthalmology & visual science · 2017
    Article
  9. The Involvement ofJournal of ophthalmology · 2017
    Article
  10. Article
  11. Article
  12. Effects of antioxidant gene therapy on the development of diabetic retinopathy and the metabolic memory phenomenon.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2015
    Article
  13. Article
  14. Article
  15. Vitreous mediators in retinal hypoxic diseases.Mediators of inflammation · 2013
    Review
  16. Hypoxia-induced oxidative stress in ischemic retinopathy.Oxidative medicine and cellular longevity · 2012
    Review
  17. Article
  18. Targets of Neuroprotection in Glaucoma.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics
    Review
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.

Baihua ChenDepartment of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha Hunan Province, People's Republic of China.
Sergio Caballero
Soojung Seo
Maria B Grant
Alfred S Lewin

Funding

NITRIC OXIDE IN THE PATHOGENESIS OF DIABETIC RETINOPATHYR01EY012601 · NEI · UNIVERSITY OF FLORIDA · PI Julia V Busik, Maria Bartolomeo Grant · 1998 to 2026
$9.6M
Targeting the IGF-1 System in Retinal AngiogenesisR01EY007739 · NEI · UNIVERSITY OF FLORIDA · PI ABCOUWER, STEVEN F, GRANT, MARIA BARTOLOMEO · 1995 to 2015
$5.4M
NO Dysregulation of the Peripheral Clock in Diabetic ComplicationsR01DK090730 · NIDDK · UNIVERSITY OF FLORIDA · PI GRANT, MARIA BARTOLOMEO · 2010 to 2013
$1.3M
CXCR4/SDF-1 Axis in Proliferation Diabetic RetinopathyR21EY014818 · NEI · UNIVERSITY OF FLORIDA · PI GRANT, MARIA BARTOLOMEO · 2002 to 2003
$725k
NEI NIH HHS R01 EY007739NEI NIH HHS R01 EY012601NEI NIH HHS R21 EY014818NIDDK NIH HHS R01 DK090730
6 · The paper itself

Abstract

purposeRetinal ischemia/reperfusion (I/R) injury results in the generation of reactive oxygen species (ROS). The aim of this study was to investigate whether delivery of the manganese superoxide dismutase gene (SOD2) or the catalase gene (CAT) could rescue the retinal vascular damage induced by I/R in mice.

methodsI/R injury to the retina was induced in mice by elevating intraocular pressure for 2 hours, and reperfusion was established immediately afterward. One eye of each mouse was pretreated with plasmids encoding manganese superoxide dismutase or catalase complexed with cationic liposomes and delivered by intravitreous injection 48 hours before initiation of the procedure. Superoxide ion, hydrogen peroxide, and 4-hydroxynonenal (4-HNE) protein modifications were measured by fluorescence staining, immunohistochemistry, and Western blot analysis 1 day after the I/R injury. At 7 days after injury, retinal vascular cell apoptosis and acellular capillaries were quantitated.

resultsSuperoxide ion, hydrogen peroxide, and 4-HNE protein modifications increased at 24 hours after I/R injury. Administration of plasmids encoding SOD2 or CAT significantly reduced levels of superoxide ion, hydrogen peroxide, and 4-HNE. Retinal vascular cell apoptosis and acellular capillary numbers increased greatly by 7 days after the injury. Delivery of SOD2 or CAT inhibited the I/R-induced apoptosis of retinal vascular cell and retinal capillary degeneration.

conclusionsDelivery of antioxidant genes inhibited I/R-induced retinal capillary degeneration, apoptosis of vascular cells, and ROS production, suggesting that antioxidant gene therapy might be a treatment for I/R-related disease.

Indexed as

AldehydesAnimalsBlotting, WesternCapillariesCatalaseFemaleGene Expression Regulation, EnzymologicGene Transfer TechniquesHydrogen PeroxideImmunohistochemistryIn Situ Nick-End LabelingLiposomesMiceMice, Inbred C57BLPlasmidsReactive Oxygen Species4-hydroxy-2-nonenalAldehydesCatalaseHydrogen PeroxideLiposomesReactive Oxygen SpeciesSuperoxide DismutaseSuperoxides

Identifiers

PMID19628743
PMCPMC3756491

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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.