Abstract：
PURPOSE:A relationship has been reported between the presence of peripheral neuropathy and the density and shape of corneal nerve fibers. Peripheral neuropathy is a debilitating condition that arises from many common health problems, and its presence is often confirmed with an invasive clinical test called intramuscular electromyography (EMG). In this study, the possibility of developing an alternative or adjunct test to EMG based on the appearance of nerve fibers in corneal micrographs was explored. Since corneal imaging is virtually noninvasive compared with EMG, such a test may be administered more liberally and frequently, before neuropathy symptoms occur. METHODS:A software program that automatically traces nerve fibers in corneal micrographs and generates measures based on these traces was implemented. This software was applied to a database of images collected by confocal laser scanning corneal microscopy from diabetic subjects whose levels of neuropathy were measured with EMG and from healthy subjects. RESULTS:Trends in the nerve fiber density and various measures of shape were calculated and observed, to explore the possibility of using these measures as a clinical tool for corroborating symptoms, confirming an evaluation, or evaluating risk factors for developing neuropathy. CONCLUSIONS:Preliminary statistical trends show a potential for measuring and observing neuropathy severity or for providing an objective risk measure for a patient's ensuing condition. More work is needed in the development of the measures and in their testing to prove that the measures can be made repeatable in a clinical environment.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Holmes TJ,Pellegrini M,Miller C,Epplin-Zapf T,Larkin S,Luccarelli S,Staurenghi Gdoi
10.1167/iovs.09-4108subject
Has Abstractpub_date
2010-09-01 00:00:00pages
4480-91issue
9eissn
0146-0404issn
1552-5783pii
51/9/4480journal_volume
51pub_type
杂志文章abstract：PURPOSE:To optimize a nonviral gene transfection system targeting the corneal limbal stem/progenitor cells. METHODS:A plasmid containing LacZ gene coding for beta-galactosidase (beta-gal) was transfected into human corneal epithelial cells (HCECs) and multilineage progenitor cells (MLPCs) with different transfection r...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-1263
更新日期：2008-08-01 00:00:00
abstract：PURPOSE:To study the antineoplastic effect of vitamin D analogues in a xenograft model of human retinoblastoma. METHODS:Athymic mice were injected subcutaneously with Y79 cells and treated 5 days a week with either mineral oil (control group) or the vitamin D analogues calcitriol or 1,25-dihydroxy-16-ene-23-yne vitami...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.02-1198
更新日期：2003-10-01 00:00:00
abstract：Purpose:Vascular endothelial growth factor receptor 2 (VEGFR2) plays a key role in VEGF-induced angiogenesis. The goal of this project was to test the hypothesis that editing genomic VEGFR2 loci using the technology of clustered regularly interspaced palindromic repeats (CRISPR)-associated DNA endonuclease (Cas)9 in St...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-20537
更新日期：2017-02-01 00:00:00
abstract：PURPOSE:Cultured human corneal endothelial cells (cHCECs) are anticipated to become an alternative to donor corneas for the treatment of corneal endothelial dysfunction. However, cHCECs reportedly tend to exhibit chromosomal abnormality during in vitro cell division, thereby hampering their use in the clinical setting....
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-19771
更新日期：2016-08-01 00:00:00
abstract：PURPOSE:The aim of this study was to determine the function of the tight junction protein occludin in the control of permeability, under diffusive and hydrostatic pressures, and its contribution to the control of cell division in retinal pigment epithelium. METHODS:Occludin expression was inhibited in the human retina...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-1204
更新日期：2008-06-01 00:00:00
abstract：PURPOSE:This study describes the expression and distribution of arrestin, phosducin, and recoverin in the cone-dominant retina of the ground squirrel Spermophilus tridecemlineatus. METHODS:mRNA expression was studied by blot hybridization of ground squirrel retinal RNA, with human and murine RNA as controls. The distr...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1994-10-01 00:00:00
abstract：:Total outflow facility was determined by two-level constant pressure perfusion of the anterior chamber in surgically virgin, aniridic, and ciliary muscle disinserted cynomolgus monkey eyes 6 to 13 times at 1- to 2-month intervals over periods of 8 to 24 months. Facility decreased approximately 15 to 20% between consec...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1983-02-01 00:00:00
abstract：:The morphology of the apical surface of rabbit retinal pigment epithelium was studied by scanning electron microscopy from the first minute to several hours after making small nonrhegmatogenous retinal detachments (blebs). From 0 to 5 min, there were only slight changes in the homogeneous, dense mat of filamentous mic...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1986-12-01 00:00:00
abstract：PURPOSE:To evaluate symptoms, signs, and the levels of 16 tears inflammatory mediators of dry eye (DE) patients exposed to an environment simulating an in-flight air cabin in an environmental chamber. METHODS:Twenty DE patients were exposed to controlled environment simulating an in-flight airplane cabin (simulated in...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-11361
更新日期：2013-03-01 00:00:00
abstract：PURPOSE:To assess the impact of zinc finger E-box binding homeobox 1 (ZEB1) gene mutations associated with posterior polymorphous corneal dystrophy 3 (PPCD3) and Fuchs' endothelial corneal dystrophy (FECD). METHODS:Thirteen of the 27 previously reported ZEB1 truncating mutations associated with PPCD3 and the six previ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-15247
更新日期：2014-09-04 00:00:00
abstract：:The ciliary bodies of five monkey eyes and one human eye were subdivided into five zones. The ciliary epithelium with its bordering stroma was investigated electron microscopically. The number of cell organelles of the nonpigmented (NPE) and pigmented (PE) epithelium (mitochondria, rough endoplasmic reticulum, Golgi c...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1979-07-01 00:00:00
abstract：:Silicone oil (SiO) and fluorosilicone oil (FSiO) are used as vitreous substitutes during retinal detachment surgery. Emulsification of these oils causes complications in oil-injected eyes. One factor contributing to emulsification is interfacial tension (gamma i) of the oils. In general, the lower the gamma i, the mor...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1990-04-01 00:00:00
abstract：PURPOSE:To compare intraocular pressure (IOP) measurements obtained using the Topocon noncontact tonometer (NCT), the Goldmann applanation tonometer (GAT), and the Corvis ST (CST), a newly developed tonometer with features of visualization and measurement of the corneal deformation response to an air impulse. A seconda...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-10984
更新日期：2013-01-23 00:00:00
abstract：PURPOSE:Elevated intraocular pressure (IOP), sensed as mechanical stretching by trabecular meshwork (TM) cells, triggers extracellular matrix (ECM) remodeling. In addition to changes in gene expression, alternative mRNA splicing may alter ECM protein isoforms. Changes in mRNA expression and alternative splicing of four...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-0875
更新日期：2007-03-01 00:00:00
abstract：PURPOSE:Migration of retinal pigment epithelial (RPE) cells can be triggered by disruption of the RPE monolayer or injury to the neural retina. Migrating cells may re-establish a confluent monolayer, or they may invade the neural retina and disrupt visual function. The purpose of this study was to examine the role of e...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2002-04-01 00:00:00
abstract：PURPOSE:To examine the in vitro properties of gap junctions on the isolated rabbit ciliary epithelium. METHODS:Intracellular potential was measured and lucifer yellow (5% in 1 M LiCl) was iontophoretically injected into a ciliary epithelial cell. Fixated tissue was examined with a laser confocal microscope. RESULTS:D...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1994-04-01 00:00:00
abstract：PURPOSE:Our study aimed to explore the heritability of retinal vascular caliber among Singapore Chinese families. METHODS:In the Strabismus, Amblyopia, and Refractive Error Study in Singaporean Chinese Preschoolers (STARS) family study conducted from 2008 to 2010, a total of 727 participants (304 parent-child pairs, 8...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-12418
更新日期：2013-08-19 00:00:00
abstract：PURPOSE:To determine the mechanism of reattachment of harvested human retinal pigment epithelium (RPE) to RPE-derived extracellular matrix and Bruch's membrane. METHODS:Confluent first-to third-passage human RPE were harvested from tissue culture and plated onto RPE-derived extracellular matrix or human Bruch's membra...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：PURPOSE:To examine the retinotoxic effect of naphthalene, a powerful oxidative agent and a well-known cataractogenic agent. METHODS:A 10% solution of naphthalene dissolved in paraffin oil was given every other day by gavage to 31 pigmented rabbits for 5 weeks, at a dose of 1 g/kg body weight. Four rabbits who received...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1994-02-01 00:00:00
abstract：PURPOSE:Persistent hyperplastic primary vitreous (PHPV) is an idiopathic developmental eye disease associated with failed involution of the hyaloid vasculature. The present work addressed the pathogenesis of PHPV in a mouse model that replicates many aspects of the human disease. METHODS:Ophthalmoscopic and histologic...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.04-0349
更新日期：2004-10-01 00:00:00
abstract：:We have investigated suprathreshold contrast sensitivity and binocular interactions in strabismic and anisometropic amblyopes using a reaction time paradigm. For every spatial frequency, reaction time increased as the grating contrast decreased. At all spatial frequencies and contrast values the reaction times using t...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1979-07-01 00:00:00
abstract：Purpose:IFT81, a core component of the IFT-B complex, involved in the bidirectional transport of ciliary proteins, has been recently implicated in syndromic ciliopathies. However, none of the IFT-B core complex proteins have been associated with nonsyndromic retinal dystrophies. Given the importance of ciliary transpor...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-19133
更新日期：2017-05-01 00:00:00
abstract：PURPOSE:To explore the roles of ZO-1 in corneal fibroblasts and myofibroblasts in a model of wounding. METHODS:Antibodies were used to identify ZO-1 in cultured rabbit corneal fibroblasts by immunocytochemistry, Western blot analysis, and immunoprecipitation. For colocalization studies, antibodies to beta-catenin, cad...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.04-0145
更新日期：2005-01-01 00:00:00
abstract：PURPOSE:To study Bardet-Biedl syndrome (BBS) in the Tunisian population and determine the presence of triallelism in the eight identified BBS genes. METHODS:DNA samples were collected from 19 consanguineous Tunisian families with BBS. Genome-wide scans were performed with microsatellite markers in 12 families, and two...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.05-1334
更新日期：2006-08-01 00:00:00
abstract：PURPOSE:Sildenafil (Viagra), a cGMP-specific phosphodiesterase type 5 inhibitor, is widely used for the treatment of erectile dysfunction and pulmonary hypertension. Clinical studies have reported transient visual impairments in patients after single-dose sildenafil use, suggesting neural involvement in several retinal...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-15964
更新日期：2015-04-01 00:00:00
abstract：:The efficacy of intravitreally administered amphotericin B was evaluated. Experimental fungal infections were produced by inoculation of Candida albicans organisms into the vitreous cavities of 46 rabbit eyes. After 72 hr, eight eyes received intravitreal injections of 10 micrograms of free amphotericin B; and ten eye...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1989-07-01 00:00:00
abstract：:A method to quantify different glaucomatous visual field defects is presented. Three visual field indices are calculated: the short-term fluctuation, the mean defect, and the corrected loss variation. The method was applied to visual fields tested with program JO on the Octopus automated perimeter. The indices of 130 ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1985-02-01 00:00:00
abstract：PURPOSE:To localize and identify the gene and mutations causing autosomal recessive retinitis pigmentosa in three consanguineous Pakistani families. METHODS:Blood samples were collected and DNA was extracted. A genome-wide scan was performed by using 382 polymorphic microsatellite markers on genomic DNA from affected ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.04-1280
更新日期：2005-07-01 00:00:00
abstract：PURPOSE:BM88 is a cell-cycle exit and neuronal differentiation protein that has been used as a marker of surviving retinal ganglion cells (RGCs) after optic nerve injury. Thy1.1 has also been used as a marker for RGC loss, but after optic nerve crush (ONC) a decrease in Thy1.1 expression precedes the loss of RGCs. The ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-12986
更新日期：2014-03-28 00:00:00
abstract：:The monoclonal antibody GRC1 was obtained by immunizing BALB/c mice with human cornea. Screening was performed by indirect immunofluorescence in cryostatic sections of several tissues: cornea, skin, placenta, hyaline cartilage, blood vessels, and nerves. GRC1 was seen to recognize fibrillar structures in all of these ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1990-02-01 00:00:00
