Evidence map›Paper›PMID 21911581›Full record

ArticleInvestigative ophthalmology & visual science2011

Perfusion-cultured bovine anterior segments as an ex vivo model for studying glucocorticoid-induced ocular hypertension and glaucoma.

Weiming Mao, Tara Tovar-Vidales, Thomas Yorio, Robert J Wordinger, Abbot F Clark

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 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

44 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Human Corneal Rim Perfusion Culture.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  3. Article
  4. Article
  5. GSK3β Inhibitors Inhibit TGFβ Signaling in the Human Trabecular Meshwork.Investigative ophthalmology & visual science · 2024
    Article
  6. The Factors Affecting the Stability of IOP Homeostasis.Investigative ophthalmology & visual science · 2024
    Article
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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

5 authors at 1 institution in 1 country.

Weiming MaoDepartment of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas 76107, USA. weiming.mao@unthsc.edu
Tara Tovar-Vidales
Thomas Yorio
Robert J Wordinger
Abbot F Clark
Institute of Cell Biology and Neurobiology · IT

Funding

Glucocorticoids, Ocular Hypertension, and GlaucomaR01EY016242 · NEI · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI CLARK, ABBOT FREDERICK · 2005 to 2018
$4.1M
NEI NIH HHS R01 EY016242
6 · The paper itself

Abstract

purposeTo determine whether perfusion-cultured bovine anterior segments would be a suitable model for glaucoma research.

methodsFresh bovine eyes were dissected and sealed on a custom-made acrylic dish with an O-ring. Perfusion medium was infused by a syringe pump at a constant infusion rate of 5 μL/min. After intraocular pressure (IOP) was stable, bovine eyes were perfused with medium containing either a vehicle control (0.1% ethanol [ETH]) or dexamethasone (DEX) for up to 7 days. IOP was recorded by a pressure transducer and a computerized system. Perfusion medium was collected for Western immunoblot analysis of myocilin (MYOC).

resultsThe morphology of the bovine trabecular meshwork after perfusion culture was similar to that of freshly dissected, nonperfused bovine eyes. Treatment with DEX elevated IOP in some bovine eyes, whereas others showed little change. The authors analyzed the data from 18 ETH-treated control eyes and defined 2.82 mm Hg as the threshold of ocular hypertension (OHT), which equals mean pressure change + 2× SD. Approximately 40% (12/29) of the bovine eyes were DEX responders, which is very close to the DEX-responsive rates observed in human and monkey eyes. Western blot data showed that DEX treatment induced the expression of the DEX-inducible gene MYOC only in the perfusion-cultured anterior segments with DEX-induced OHT.

conclusionsOHT can be induced by DEX in perfusion-cultured bovine anterior segments. This is a fast, convenient, affordable, and reliable model for studying DEX-induced OHT and the mechanisms of trabecular outflow.

Indexed as

Disease Models, AnimalAnimalsAnterior Eye SegmentBlotting, WesternCattleCytoskeletal ProteinsDexamethasoneEye ProteinsGene Expression RegulationGlaucoma, Open-AngleGlucocorticoidsGlycoproteinsIntraocular PressureMyocilinOcular HypertensionOrgan Culture TechniquesCytoskeletal ProteinsDexamethasoneEye ProteinsGlucocorticoidsGlycoproteinsMyocilin

Identifiers

PMID21911581
PMCPMC3208005
OpenAlexW2041480582

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.