Evidence map›Paper›PMID 26883567›Full record

ArticleScientific reports2016

Tissue-based multiphoton analysis of actomyosin and structural responses in human trabecular meshwork.

Jose M Gonzalez, Minhee K Ko, Andrew Pouw, James C H Tan

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
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  5. Aqueous outflow regulation - 21st century concepts.Progress in retinal and eye research · 2021
    Review
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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

4 authors at 1 institution in 1 country.

Jose M GonzalezDoheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Minhee K KoDoheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Andrew PouwDoheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA.
James C H TanDoheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Doheny Eye Institute · US

Funding

VISION RESEARCHP30EY003040 · NEI · DOHENY EYE INSTITUTE · PI SUN, DEMING · 1985 to 2013
$7.0M
Role of trabecular meshwork contractility in modulating outflow resistanceK08EY020863 · NEI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI TAN, CHEE HIAN · 2010 to 2013
$981k
MULTI-PHOTON CONFOCAL MICROSCOPE SYSTEMS10RR024754 · NCRR · UNIVERSITY OF SOUTHERN CALIFORNIA · PI PETI-PETERDI, JANOS · 2008 to 2008
$500k
NCRR NIH HHS 1S10RR024754NCRR NIH HHS S10 RR024754NEI NIH HHS EY020863NEI NIH HHS EY03040NEI NIH HHS K08 EY020863NEI NIH HHS P30 EY003040
6 · The paper itself

Abstract

The contractile trabecular meshwork (TM) modulates aqueous humor outflow resistance and intraocular pressure. The primary goal was to visualize and quantify human TM contractile state by analyzing actin polymerization (F-actin) by 2-photon excitation fluorescence imaging (TPEF) in situ. A secondary goal was to ascertain if structural extracellular matrix (ECM) configuration changed with contractility. Viable ex vivo human TM was incubated with latrunculin-A (Lat-A) or vehicle prior to Alexa-568-phalloidin labeling and TPEF. Quantitative image analysis was applied to 2-dimensional (2D) optical sections and 3D image reconstructions. After Lat-A exposure, (a) the F-actin network reorganized as aggregates; (b) F-actin-associated fluorescence intensity was reduced by 48.6% (mean; p = 0.007; n = 8); (c) F-actin 3D distribution was reduced by 68.9% (p = 0.040); (d) ECM pore cross-sectional area and volume were larger by 36% (p = 0.032) and 65% (p = 0.059) respectively and pores appeared more interconnected; (e) expression of type I collagen and elastin, key TM structural ECM proteins, were unaltered (p = 0.54); and (f) tissue viability was unchanged (p = 0.39) relative to vehicle controls. Thus Lat-A-induced reduction of actomyosin contractility was associated with TM porous expansion without evidence of reduced structural ECM protein expression or cellular viability. These important subcellular-level dynamics could be visualized and quantified within human tissue by TPEF.

Indexed as

Microscopy, Fluorescence, MultiphotonActinsActomyosinExtracellular MatrixHumansImaging, Three-DimensionalProtein MultimerizationTrabecular MeshworkActinsActomyosin

Identifiers

PMID26883567
PMCPMC4756353
OpenAlexW2416785243

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.