Evidence map›Paper›PMID 21178141›Full record

ArticleInvestigative ophthalmology & visual science2011

Significance of outer blood-retina barrier breakdown in diabetes and ischemia.

Hui-Zhuo Xu, Yun-Zheng Le

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed
5.1field-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

115 citing papers in PubMed, 192 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Piperine alleviates retinal ischemic injury by mediating the APE1 signaling.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Article
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  8. Review
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  11. Article
  12. Review
  13. Article
  14. Melatonin and retinal cell damage: molecular and biological functions.Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Prostaglandin EFrontiers in pharmacology · 2025
    Article
  20. Review

55 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

2 authors at 1 institution in 2 countries.

Hui-Zhuo XuDepartment of Medicine Endocrinology, Universityof Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.
Yun-Zheng Le
University of Oklahoma Health Sciences Center · US

Funding

UNDERSTANDING THE ROLE OF RETINOL DEHYDROGENASES RDH11 AND RDH12 IN VISIONP20RR017703 · NCRR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI MANDAL, NAWAJES · 2002 to 2011
$23.6M
THE ROLE OF COMPLEX 1 IN MITOCHONDRIAL DYSFUNCTION & FREE RADICAL PROD IN TYPE 1P20RR024215 · NCRR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI SHORT, KEVIN R. · 2007 to 2011
$11.7M
CORE--MOLECULAR BIOLOGYP30EY012190 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI ANDERSON, ROBERT E · 1999 to 2009
$5.2M
Study of the RPE barrierR01EY020900 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI LE, YUN ZHENG · 2010 to 2013
$1.4M
NCRR NIH HHS P20 RR017703NCRR NIH HHS P20 RR024215NCRR NIH HHS P20RR024215NCRR NIH HHS P20RR17703NEI NIH HHS P30 EY012190NEI NIH HHS P30EY12190NEI NIH HHS R01 EY020900NEI NIH HHS R01EY20900
6 · The paper itself

Abstract

purposeThe outer blood-retina barrier (BRB) separates the neural retina from the choroidal vasculature, which is responsible for approximately 80% of blood supplies in the eye. To determine the significance of outer BRB breakdown in diabetic retinopathy, the outer BRB-specific leakage of macromolecules in diabetic and ischemic rodents was investigated.

methodsDiabetes and ischemia were induced in rodents by streptozotocin and oxygen-induced retinopathy, respectively. Diabetic and ischemic rodents were injected intravenously with fluorescein isothiocyanate (FITC)-dextran. The outer BRB-specific leakage in diabetic and ischemic rodents was visualized by fluorescent microscopy.

resultsA microscopic imaging assay was developed to examine outer BRB breakdown. The outer BRB-specific leakage of fluorescent macromolecules was visualized in diabetic and ischemic rodents. Substantial leakages of macromolecules through the outer BRB in diabetic and ischemic rodents were detected with this assay. The number of severe outer BRB leakage sites is inversely proportional to the size of macromolecules. Significant depletion of occludin in the RPE of ischemic and diabetic rodents was also observed.

conclusionsFor the first time, a microscopic imaging assay for directly visualizing macromolecules leaked through the outer BRB in rodents was developed. Using this assay, the authors demonstrated the significance of outer BRB breakdown in diabetes and ischemia, which will have implications to the understanding, diagnosis, and treatment of diabetic macular edema and other ocular diseases with outer BRB defects. The microscopic imaging assay established in this study will likely be very useful to the development of drugs for macular edema.

Indexed as

AnimalsAnimals, NewbornBlood-Retinal BarrierCapillary PermeabilityDextransDiabetes Mellitus, ExperimentalDiabetic RetinopathyFluorescein-5-isothiocyanateIschemiaMiceMice, Inbred C57BLMicroscopy, FluorescenceRatsRats, Inbred BNRetinal Pigment EpitheliumRetinal VesselsDextransFluorescein-5-isothiocyanatefluorescein isothiocyanate dextran

Identifiers

PMID21178141
PMCPMC3080181
OpenAlexW2053270619

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.