Evidence map›Paper›PMID 20702815›Full record

ArticleInvestigative ophthalmology & visual science2011

Optic neuropathy due to microbead-induced elevated intraocular pressure in the mouse.

Huihui Chen, Xin Wei, Kin-Sang Cho, Guochun Chen, Rebecca Sappington, David J Calkins, Dong F Chen

Open access · greenAbstract 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 128 papers.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

128 citing papers in PubMed, 192 citations in OpenAlex.

  1. Article
  2. Neuroinflammation in glaucoma: a myriad of cellular pathways and players.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. A Comprehensive Protocol for Microbead-Induced Ocular Hypertension in Mice.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  8. Article
  9. Modeling complex age-related eye disease.Progress in retinal and eye research · 2024
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. ATP-P2XJournal of neuroinflammation · 2023
    Article
  16. Ocular stress enhances contralateral transfer of lenadogene nolparvovec gene therapy through astrocyte networks.Molecular therapy : the journal of the American Society of Gene Therapy · 2023
    Article
  17. Neuronal p58Cells · 2023
    Article
  18. Viral Vector-Induced Ocular Hypertension in Mice.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  19. Article
  20. Article

68 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

7 authors at 3 institutions in 2 countries.

Huihui ChenDepartment of Ophthalmology, Central South University, Changsha, Hunan, People's Republic of China.
Xin Wei
Kin-Sang Cho
Guochun Chen
Rebecca Sappington
David J Calkins
Dong F Chen
Harvard University · USSmith-Kettlewell Eye Research Institute · USCentral South University · CN

Funding

Functional Restoration of the Optic Nerve After Disease or DamageR01EY017641 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI CHEN, DONG FENG · 2008 to 2010
$1.5M
NEI NIH HHS EY017641NEI NIH HHS R01 EY017641
6 · The paper itself

Abstract

purposeTo characterize a glaucoma model of mice, the authors adopted and modified a method of inducing the chronic elevation of intraocular pressure (IOP) by anterior chamber injection of polystyrene microbeads.

methodsChronic elevation of IOP was induced unilaterally in adult C57BL/6J mice by injecting polystyrene microbeads to the anterior chamber. Effectiveness of microbeads of different sizes (small, 10 μm; large, 15 μm) on inducing IOP elevation was compared, and IOP was measured every other day using a tonometer. After maintaining elevated IOP for 2, 4, or 8 weeks, the degree of RGC and axon degeneration was assessed quantitatively using electron microscopy, fluorogold, retrograde labeling, and immunohistochemistry.

resultsEighty-one of 87 mice that received anterior chamber injection of microbeads exhibited consistent IOP elevation above that of control eyes. Injection of small microbeads induced longer and higher peak value of IOP elevation compared with that of the large microbeads. A single injection of small microbeads resulted in a 4-week elevation of IOP that was maintained to an 8-week period after a second injection of microbeads in week 4. As the duration of IOP elevation increased, RGC bodies and their axons degenerated progressively and reached an approximately 50% loss after an 8-week elevation of IOP.

conclusionsAnterior chamber injection of microbeads effectively induced IOP elevation and glaucomatous optic neuropathy in mice. Development of an inducible mouse model of elevated IOP will allow applications of mouse genetic technology to the investigation of the mechanisms and the evaluation of treatment strategies of glaucoma.

Indexed as

Disease Models, AnimalIntraocular PressureMicrospheresAnimalsAnterior ChamberAxonsInjectionsMiceMice, Inbred C57BLMicroscopy, FluorescenceOcular HypertensionOptic Nerve DiseasesPolystyrenesRetinal Ganglion CellsTime FactorsTonometry, OcularPolystyrenesTubulin

Identifiers

PMID20702815
PMCPMC3053285
OpenAlexW2050374811

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.