Evidence map›Paper›PMID 24084333›Full record

ArticleActa biomaterialia2014

Elastic modulus and collagen organization of the rabbit cornea: epithelium to endothelium.

Sara M Thomasy, Vijay Krishna Raghunathan, Moritz Winkler, Christopher M Reilly, Adeline R Sadeli, Paul Russell, James V Jester, Christopher J Murphy

Open access · greenAbstract read
In one paragraph

Article in Acta biomaterialia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
6.9field-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

58 citing papers in PubMed, 120 citations in OpenAlex.

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  12. Squishy matters - Corneal mechanobiology in health and disease.Progress in retinal and eye research · 2024
    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

8 authors at 2 institutions in 1 country.

Sara M ThomasyDepartment of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA.
Vijay Krishna RaghunathanDepartment of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA.
Moritz WinklerDepartment of Biomedical Engineering, University of California-Irvine, Irvine, CA, USA.
Christopher M ReillyDepartment of Pathology, Immunology and Microbiology, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA.
Adeline R SadeliDepartment of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA.
Paul RussellDepartment of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA.
James V JesterDepartment of Biomedical Engineering, University of California-Irvine, Irvine, CA, USA.
Christopher J MurphyDepartment of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA; Department of Ophthalmology and Vision Science, School of Medicine, University of California-Davis, Davis, CA 95616, USA. Electronic address: cjmurphy@ucdavis.edu.
University of California, Davis · USUniversity of California, Irvine · US

Funding

VISION RESEARCH CORE GRANTP30EY012576 · NEI · UNIVERSITY OF CALIFORNIA DAVIS · PI LISA M OAKES · 1999 to 2026
$18.9M
Modulation of Signal Transduction by Nano-TopographyR01EY016134 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI MURPHY, CHRISTOPHER JOHN, THOMASY, SARA MICHELLE · 2006 to 2023
$5.1M
Biophysical Cues and Corneal Wound HealingR01EY019970 · NEI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI MURPHY, CHRISTOPHER JOHN · 2011 to 2020
$3.5M
SUBSTRATUM TOPOGRAPHY EFFECTS ON CORNEAL EPITHELIUMR01EY012253 · NEI · UNIVERSITY OF WISCONSIN MADISON · PI MURPHY, CHRISTOPHER JOHN · 1998 to 2005
$1.7M
Role of Biophysical Cues in the Pathogenesis of GlaucomaR01EY019475 · NEI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI RUSSELL, PAUL · 2010 to 2013
$1.5M
Engineering the Corneal Wound Bed to Promote HealingK08EY021142 · NEI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI THOMASY, SARA MICHELLE · 2011 to 2015
$879k
NEI NIH HHS K08 EY021142NEI NIH HHS K08EY021142NEI NIH HHS P30 EY012576NEI NIH HHS P30EY12576NEI NIH HHS R01 EY012253NEI NIH HHS R01 EY016134NEI NIH HHS R01EY016134NEI NIH HHS R01 EY019475NEI NIH HHS R01 EY019970NEI NIH HHS R01EY019970
6 · The paper itself

Abstract

The rabbit is commonly used to evaluate new corneal prosthetics and study corneal wound healing. Knowledge of the stiffness of the rabbit cornea would better inform the design and fabrication of keratoprosthetics and substrates with relevant mechanical properties for in vitro investigations of corneal cellular behavior. This study determined the elastic modulus of the rabbit corneal epithelium, anterior basement membrane (ABM), anterior and posterior stroma, Descemet's membrane (DM) and endothelium using atomic force microscopy (AFM). In addition, three-dimensional collagen fiber organization of the rabbit cornea was determined using nonlinear optical high-resolution macroscopy. The elastic modulus as determined by AFM for each corneal layer was: epithelium, 0.57 ± 0.29 kPa (mean ± SD); ABM, 4.5 ± 1.2 kPa, anterior stroma, 1.1 ± 0.6 kPa; posterior stroma, 0.38 ± 0.22 kPa; DM, 11.7 ± 7.4 kPa; and endothelium, 4.1 ± 1.7 kPa. The biophysical properties, including the elastic modulus, are unique for each layer of the rabbit cornea and are dramatically softer in comparison to the corresponding regions of the human cornea. Collagen fiber organization is also dramatically different between the two species, with markedly less intertwining observed in the rabbit vs. human cornea. Given that the substratum stiffness considerably alters the corneal cell behavior, keratoprosthetics that incorporate mechanical properties simulating the native human cornea may not elicit optimal cellular performance in rabbit corneas that have dramatically different elastic moduli. These data should allow for the design of substrates that better mimic the biomechanical properties of the corneal cellular environment.

Indexed as

Elastic ModulusAnimalsBiomechanical PhenomenaCollagenDescemet MembraneEndothelium, CornealEpithelium, CornealFemaleHumansImage Processing, Computer-AssistedNonlinear DynamicsRabbitsCollagenAFMCorneaElastic modulusNonlinear optical high-resolution macroscopyRabbit

Identifiers

PMID24084333
PMCPMC4280096
OpenAlexW1988933621

What OpenQuestion holds

Textmetadata
LicenceTDM
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.