Abstract:
:Recently protease inhibitors were used to treat corneal ulceration and persistent epithelial defect. An organ culture system was used in this study to examine the effect of four protease inhibitors on rat corneal epithelial migration and on incorporation of 3H-leucine into trichloroacetic acid-precipitable material as an indicator of protein synthesis. The effect of the protein synthesis inhibitor, verrucarin A, on both parameters also was examined. These results showed that epithelial migration was dependent linearly on protein synthesis with inhibition ranging from 100% at 10(-5) M to 0% at 10(-8) M. Pepstatin A, an acid protease inhibitor, had no effect on migration at concentrations of 10(-5) M and 10(-6) M. At 0.5 mM, 1,10-phenanthroline, a metalloprotease inhibitor, blocked epithelial migration at 100% in a dose-dependent manner with an equivalent reduction in 3H-leucine incorporation. Aprotinin blocked migration 74% and 71% at 500 U/ml and 50 U/ml, respectively, whereas protein synthesis decreased only 41% and 21%, respectively. At 1.0 mM and 0.5 mM, phenylmethylsulfonyl fluoride (PMSF) blocked migration 92% and 71% and lowered protein synthesis 74% and 55%, both respectively. These data suggest that the serine proteases may be involved directly in epithelial migration because their inhibitors, aprotinin and PMSF, blocked it to such an extent that this finding cannot be explained by inhibition of protein synthesis alone.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Zieske JD,Bukusoglu Gsubject
Has Abstractpub_date
1991-06-01 00:00:00pages
2073-8issue
7eissn
0146-0404issn
1552-5783journal_volume
32pub_type
杂志文章abstract::The metabolism of the polyunsaturated fatty acid, arachidonic acid (20:4, n-6) in rabbit cornea with varying severities of herpes simplex viral infection was investigated. The results indicate an active synthesis of the lipoxygenase and cyclooxygenase reaction products of arachidonic acid in central cornea and corneal...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1986-10-01 00:00:00
abstract:PURPOSE:Disruption of the normally antiangiogenic environment of the retina leads to aberrant angiogenesis, the major cause of vision loss throughout the world. Prolactin (PRL), the hormone originally associated with milk production, can be proteolytically processed to 16K-PRL, a 16 kDa N-terminal PRL fragment with pot...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.05-0173
更新日期:2005-08-01 00:00:00
abstract:PURPOSE:The global or gross response index of visual performance measured from the eye does not necessarily translate to global responses measured from the brain. A better understanding of this relationship would facilitate the monitoring of disease models that affect the visual pathway. We consider whether rod- and co...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-13003
更新日期:2014-02-20 00:00:00
abstract:PURPOSE:To assess the neuroprotective effects of ketorolac administration, in solution or delivered from biodegradable microspheres, on the survival of axotomized retinal ganglion cells (RGCs). METHODS:Retinas were treated intravitreally with a single injection of tromethamine ketorolac solution and/or with ketorolac-...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-18213
更新日期:2016-03-01 00:00:00
abstract::This paper investigates the amplitude of accommodation of early onset myopes, late onset myopes, emmetropes, and hyperopes. Eighty subjects were used, 41 women and 39 men, with an age range of 18-22 yr (mean = 19.82). All subjects wore an optimum refractive correction, giving visual acuities of 20/20 or better. Signif...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1986-07-01 00:00:00
abstract:PURPOSE:To investigate the relationship between percentage of body fat and macular pigment (MP) optical density. METHODS:One hundred healthy subjects of ages between 22 and 60 years volunteered to participate in this study. MP optical density was measured psychophysically, serum lutein and zeaxanthin were quantified b...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.04-0273
更新日期:2004-11-01 00:00:00
abstract:Purpose:To investigate the plasma concentration of nicotinamide in primary open-angle glaucoma (POAG). Methods:Plasma of 34 POAG individuals was compared to that of 30 age- and sex-matched controls using a semiquantitative method based on liquid chromatography coupled to high-resolution mass spectrometry. Subsequently...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.19-27099
更新日期:2019-06-03 00:00:00
abstract:PURPOSE:To determine the prevalence of presbyopia in the state of Andhra Pradesh in south India. METHODS:Comprehensive ocular examinations including logMAR (logarithm of the minimum angle of resolution) distance and near (presenting and best corrected) visual acuity, slit lamp biomicroscopy of the anterior segment, an...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.05-1192
更新日期:2006-06-01 00:00:00
abstract:PURPOSE:Refraction, as measured by spherical equivalent, is the need for an external lens to focus images on the retina. While genetic factors play an important role in the development of refractive errors, few susceptibility genes have been identified. However, several regions of linkage have been reported for myopia ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.10-7096
更新日期:2011-07-13 00:00:00
abstract:PURPOSE:To characterize the cellular expression patterns of antiangiogenic factors differentially regulated in the fetal human macula. METHODS:RNA was extracted from macular, nasal, and surround biopsies of three human fetal retinas at midgestation. Relative levels of expression of pigment epithelium-derived factor (P...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.09-4905
更新日期:2010-08-01 00:00:00
abstract:PURPOSE:To test whether the incidence of long-term drift to timolol can be reduced by a "pulsatile" treatment (6 months timolol-2 months dipivefrin). METHODS:In a randomized clinical trial, 100 consecutive subjects with ocular hypertension or high-tension primary open-angle glaucoma in at least one eye were randomly a...
journal_title:Investigative ophthalmology & visual science
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1996-03-01 00:00:00
abstract::As part of an ophthalmic and anthropometric survey of two free-breeding rhesus monkey (Macaca mulatta) populations, intraocular pressure (IOP) of 114 animals was measured under ketamine catalepsia with the use of a floating-tip pneumatonometer. The mean IOP of the 102 animals included in the main analyses was 14.9 +/-...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1979-08-01 00:00:00
abstract:PURPOSE:To examine the correlation between corneal acoustic impedance and Young's modulus in a canine eye model. METHODS:Twenty canine globes were recovered from healthy animals. Corneal acoustic impedance was measured in the intact globes using two methods: a quantitative ultrasound spectroscopy method and the reflec...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.10-5723
更新日期:2011-02-09 00:00:00
abstract:PURPOSE:To examine the waveform characteristics of 37 subjects with manifest latent nystagmus (MLN) and determine the manner in which visual feedback influences the nature of the waveform. METHODS:Binocular recordings of the eye movements of all subjects were undertaken using an infrared tracking system. Subjects view...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-11-01 00:00:00
abstract:PURPOSE:To investigate the role of WDR36 and P53 sequence variations in POAG susceptibility. METHODS:The authors performed a case-control genetic association study in 268 unrelated Spanish patients (POAG1) and 380 control subjects matched for sex, age, and ethnicity. WDR36 sequence variations were screened by either d...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-7489
更新日期:2011-10-31 00:00:00
abstract:Purpose:Lens epithelial cell (LEC) conversion to myofibroblast is responsible for fibrotic cataract surgery complications including posterior capsular opacification. While transforming growth factor beta (TGFβ) signaling is important, the mechanisms by which the TGFβ pathway is activated post cataract surgery (PCS) are...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-25067
更新日期:2018-10-01 00:00:00
abstract:PURPOSE:To describe refractive status in children and young adults with cerebral palsy (CP) and relate refractive error to standardized measures of type and severity of CP impairment and to ocular dimensions. METHODS:A population-based sample of 118 participants aged 4 to 23 years with CP (mean 11.64 +/- 4.06) and an ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.09-4670
更新日期:2010-06-01 00:00:00
abstract:PURPOSE:RPE65 has been shown to be essential for the production of 11-cis retinal by the retinal pigment epithelium. Mutations in RPE65 are known to be associated with severe forms of early-onset retinal dystrophy. This project was designed to determine the amount of regenerable opsin in Rpe65-/- mice during developmen...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0567
更新日期:2003-01-01 00:00:00
abstract:PURPOSE:To describe the age-, gender-, and cause-specific 5-year incidence of bilateral visual impairment in participants in the Melbourne Visual Impairment Project, Victoria, Australia. METHODS:Participants aged 40 years and older were recruited from Melbourne, Victoria, Australia, by random cluster sampling. The mea...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0457
更新日期:2003-12-01 00:00:00
abstract::The pattern reversal visual evoked response (VER) was recorded under conditions of artificially unbalanced visual input between two eyes, an aniseikonia induced by size lenses that alter the perceived retinal image size without changing refraction. At 3.0% aniseikonia binocular summation started to decrease, and at 5....
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1986-04-01 00:00:00
abstract:PURPOSE:The goal of this study was to functionally evaluate three previously uncharacterized heat shock factor protein 4 (HSF4) mutations (c.595_599delGGGCC, c.1213C>T, c.1327+4A>G) encoding mutant HSF4 proteins (G199EfsX15, R405X, and M419GfsX29) with missing C-terminal ends. These HSF4 mutations were previously ident...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-12283
更新日期:2013-10-11 00:00:00
abstract::Flow cytometry (FCM) was used to investigate antigenic expression and modulation during the cell cycle of Y-79 and WERI-Rb1 tissue cultured retinoblastoma cell lines using a polyclonal anti-Y-79 antibody and fluorescein conjugated lectins. Several Y-79 resting cell populations were identified by FCM analysis of antibo...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1985-09-01 00:00:00
abstract:PURPOSE:To evaluate changes of levels of erythropoietin (EPO) and VEGF in aqueous humor before and after an intravitreal injection of bevacizumab (IVB) and determine the underlying correlation between them. METHODS:This prospective study involved 21 eyes of 21 patients with surgery-required advanced neovascular glauco...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-11507
更新日期:2013-06-04 00:00:00
abstract::Experimental detachments were made in Dutch rabbit eyes by injecting autologous serum or Hanks' solution into the subretinal space through a glass micropipette. The serum was resorbed at a rate of 0.064 +/- 0.023 microliter/mm2/hr, which is approximately half as fast as Hanks' solution. Both cyclic GMP and dibutyryl c...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1988-08-01 00:00:00
abstract:PURPOSE:To determine whether blood pressure and subclinical atherosclerosis are associated with incident age-related maculopathy (ARM). METHODS:The study was performed within the Rotterdam Study, a population-based, prospective cohort study in Rotterdam, The Netherlands. A total of 4822 subjects who at baseline were a...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.03-0121
更新日期:2003-09-01 00:00:00
abstract:PURPOSE:To test the hypothesis that retinal hypoxia is present during vascular development in normal rat pups and in a newborn rat model of retinopathy of prematurity (ROP). METHODS:Preretinal vitreous PO(2) measurements were made during room air breathing using (19)F magnetic resonance spectroscopy (MRS) and a perflu...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-1122
更新日期:2003-07-01 00:00:00
abstract:PURPOSE:To compare conventional pattern-reversal visual evoked potentials (cVEPs) with multifocal VEPs (mfVEPs). METHODS:mfVEPs and cVEPs were recorded during the same session in 12 normal subjects with an active electrode at Oz referenced to the inion (Oz-In) or to a midfrontal position, Fz (Oz-Fz). The mfVEP stimulu...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0441
更新日期:2003-03-01 00:00:00
abstract:PURPOSE:Using transient ischemia followed by reperfusion (IR) to model ischemic retinal disease, this study compares the effects of ischemic preconditioning (IPC) and therapies targeting vascular endothelial growth factor (VEGF) and tumor necrosis factor (TNF)-α on retinal apoptosis, vascular permeability, and mRNA exp...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.10-5264
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:To determine the roles of glial fibrillary acidic protein (GFAP) and vimentin in Müller cell reactivity. METHODS:Retinal detachments were created in mice deficient for GFAP and vimentin (GFAP(-/-)vim(-/-)) and age-matched wild-type (wt) mice. The reactivity of the retina was studied by immunofluorescence and e...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-1474
更新日期:2008-08-01 00:00:00
abstract::The relative importance of the anterior ciliary arteries to blood flow to the anterior segment and the quadrant distribution of blood to the iris, ciliary body, and ciliary processes were determined in canines with the use of 15 +/- 3 mum 103Ru microspheres with the reference blood flow method. Recti muscles were isol...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1980-11-01 00:00:00