Evidence map›Paper›PMID 24833737›Full record

ArticleInvestigative ophthalmology & visual science2014

The structure of the trabecular meshwork, its connections to the ciliary muscle, and the effect of pilocarpine on outflow facility in mice.

Darryl R Overby, Jacques Bertrand, Martin Schicht, Friedrich Paulsen, W Daniel Stamer, Elke Lütjen-Drecoll

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
9.7field-weighted citation impact, top 1% 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

75 citing papers in PubMed, 116 citations in OpenAlex.

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  15. The Factors Affecting the Stability of IOP Homeostasis.Investigative ophthalmology & visual science · 2024
    Article
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15 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

6 authors at 3 institutions in 3 countries.

Darryl R OverbyDepartment of Bioengineering, Imperial College London, London, United Kingdom.
Jacques BertrandDepartment of Bioengineering, Imperial College London, London, United Kingdom.
Martin SchichtDepartment of Anatomy II, University of Erlangen-Nürnberg, Germany.
Friedrich PaulsenDepartment of Anatomy II, University of Erlangen-Nürnberg, Germany.
W Daniel StamerDepartment of Ophthalmology, Duke University, Durham, North Carolina, United States.
Elke Lütjen-DrecollDepartment of Anatomy II, University of Erlangen-Nürnberg, Germany.
Friedrich-Alexander-Universität Erlangen-Nürnberg · DEImperial College London · GBDuke University · US

Funding

eNOS-Dependent Mechanoregulation of Intraocular PressureR01EY022359 · NEI · DUKE UNIVERSITY · PI STAMER, W DANIEL · 2012 to 2025
$5.6M
NEI NIH HHS EY022359NEI NIH HHS R01 EY022359
6 · The paper itself

Abstract

purposeTo determine the connections between the ciliary muscle (CM), trabecular meshwork (TM), and Schlemm's canal (SC) and their innervations that allows CM contraction (by pilocarpine) to influence conventional outflow in mice.

methodsSequential sections and whole mounts of murine corneoscleral angles were stained for elastin, α-smooth muscle actin (αSMA), vesicular acetylcholine transporter (VAChT), neuronal nitric oxide synthase (nNOS), vasoactive intestinal peptide (VIP), and tyrosine hydroxylase (TH). Elastic (EL) fibers between the CM, TM, and SC were examined in ultrathin, sequential sections from different planes. The effect of pilocarpine (100 μM) on conventional outflow facility was measured by perfusion of enucleated mouse eyes.

resultsThe mouse TM contains a three-dimensional (3D) net of EL fibers connecting the inner wall of SC to the cornea anteriorly, the ciliary body (CB) internally and the choroid and CM posteriorly. The CM bifurcates near the posterior TM, extending outer tendons to the juxtacanalicular tissue and inner wall of SC and internal connections to the lamellated TM and CB. Ciliary muscle and lamellated TM cells stain with αSMA and are innervated by VAChT-containing nerve fibers, without TH, VIP, or nNOS. Pilocarpine doubled outflow facility.

conclusionsMouse eyes resemble primate eyes not only by their well developed SC and TM, but also by their 3D EL net tethering together the TM and SC inner wall and by the tendinous insertion of the CM into this net. The increase in outflow facility following cholinergic stimulation in mice, as in primates, supports using mice for studies of aqueous humor dynamics and glaucoma.

Indexed as

AnimalsAqueous HumorCiliary BodyDisease Models, AnimalGlaucomaImaging, Three-DimensionalImmunohistochemistryMiceMice, Inbred BALB CMice, Inbred C57BLMicroscopy, ElectronMuscarinic AgonistsPilocarpineTrabecular MeshworkMuscarinic AgonistsPilocarpineaqueous humorciliary muscleglaucomapilocarpinetrabecular meshwork

Identifiers

PMID24833737
PMCPMC4059081
OpenAlexW2035684959

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.