Abstract:
:Tendon and cornea of 17-day-old chick embryos primarily synthesize type I collagen as the major collagenous component nd type V collagen as a minor collagenous component. Matrix-free cells isolated from cornea and tendon synthesize and secrete mainly type I procollagen. A short lag period for the secretion of collagenous polypeptides into the medium of cell suspensions is observed. There is no significant difference in the synthesis and secretion of type I procollagen between matrix-free cells from tendon or cornea, except that cornea cells contain more free pro alpha 2(I) chains. The pro alpha 2(I) chain does not contain interchain disulfide linkages and can be separated from type I procollagen by ion exchange chromatography. However, no free pro alpha 2(I) chain can be detected in the medium of cell suspensions, suggesting that free pro alpha 2(I) is probably not secreted normally and may be rapidly degraded intracellularly. These results suggest that proper chain composition of type I procollagen is not regulated at the transcriptional or translational levels. Rather it is determined by the primary structure of the pro alpha chains and/or a posttranslational factor.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Kao WW,Mai SH,Chou KLsubject
Has Abstractpub_date
1982-12-01 00:00:00pages
787-95issue
6eissn
0146-0404issn
1552-5783journal_volume
23pub_type
杂志文章abstract:PURPOSE:To evaluate the immunosuppressive and antiangiogenic activities of an intraocular rapamycin (RAPA) drug delivery system (DDS) in a rabbit model of high-risk penetrating keratoplasty. METHODS:Forty New Zealand White rabbits with corneal neovascularization underwent allograft cornea transplantation and were rand...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.05-1425
更新日期:2006-08-01 00:00:00
abstract:Purpose:The subbasal nerve plexus (SNP) is the densest and most recognizable component of the mammalian corneal innervation; however, the anatomical configuration of the SNP in most animal models remains incompletely described. The purpose of the current study is to describe in detail the SNP architecture in eight diff...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.19-28519
更新日期:2019-12-02 00:00:00
abstract:PURPOSE:To study factors associated with choroidal thickness (CT) and to compare CT in angle closure (AC), open angle (OA), and normal eyes. METHODS:Forty controls, 106 OA, and 79 AC subjects underwent measurements of posterior CT by spectral domain-optical coherence tomography, and of intraocular pressure (IOP), bloo...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10483
更新日期:2012-11-27 00:00:00
abstract:PURPOSE:Neural ectopic rewiring in retinal degeneration such as retinitis pigmentosa (RP) may form functional synapses between cones and rod bipolar cells that cause atypical signal processing. In this study, the multifocal electroretinograms (mfERGs) of a large animal model of RP, the rhodopsin P347L transgenic (Tg) p...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-1159
更新日期:2008-05-01 00:00:00
abstract:PURPOSE:Insulin-like growth factor 2 receptor (IGF2R) associates with ligands that influence wound healing outcomes. However, the expression pattern of IGF2R and its role in the cornea is unknown. METHODS:Human keratocytes were isolated from donor corneas. Fibroblasts (fibroblast growth factor 2 [FGF2]-treated) or myo...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-15179
更新日期:2014-10-30 00:00:00
abstract:PURPOSE:This study was designed to investigate the suppressive effects of antithrombin (AT)III on inflammatory reactions during endotoxin-induced uveitis (EIU) in rats by studying leukocyte-endothelium interactions. METHODS:EIU was induced in Lewis rats by footpad injection of lipopolysaccharide (LPS). ATIII was admin...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2001-06-01 00:00:00
abstract:Purpose:To investigate whether rapamycin protects tear production and the ocular surface during endoplasmic reticulum (ER) stress-induced dry eye syndrome in mice. Methods:Tunicamycin was injected intraperitoneally in BALB/c mice without or with rapamycin (TM or RM5 group). Peritoneal injection of PBS performed in veh...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-25583
更新日期:2019-03-01 00:00:00
abstract:PURPOSE:The purpose of this study was to characterize a Krt12-Cre knock-in mouse line for corneal epithelium-specific gene ablation and to analyze the allelic selection of the keratin 12 (Krt12) gene during corneal type-epithelium differentiation. METHODS:Knock-in mice were generated by gene targeting. The authors exa...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.10-5331
更新日期:2010-09-01 00:00:00
abstract:PURPOSE:To test the association between TCF4, a gene recently found to confer susceptibility to Fuchs' corneal dystrophy (FCD) in Caucasian populations, and Chinese patients with FCD. METHODS:Fifty-seven Chinese subjects with clinically diagnosed FCD and 121 normal control subjects were recruited. Genomic DNA was extr...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-7568
更新日期:2011-07-29 00:00:00
abstract::The effect of prostaglandin (PG) F2 alpha-isopropyl ester (IE), PGA2, or PGA2-IE on intraocular pressure (IOP) was tested in eight cynomolgus monkey eyes with argon laser-induced glaucoma. Dose-response testing and baseline IOP measurements were done. For multiple dose testing, 5 micrograms in 25 microliters (0.02%) o...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1990-11-01 00:00:00
abstract:PURPOSE:To evaluate the consequences of altering retinal sterol metabolism and composition on the development, histologic organization, and electrophysiological function of the retina, under conditions that mimic the biochemical hallmarks of the Smith-Lemli-Opitz (SLO) syndrome. METHODS:Pregnant Sprague-Dawley rats we...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1999-07-01 00:00:00
abstract:Purpose:To investigate transepidermal water loss (TEWL) from the ocular area in dry eye disease (DED) and evaluate the correlation between ocular TEWL and other DED parameters. Methods:Transepidermal water loss from the ocular area in 56 eyes with DED and 38 healthy eyes was measured using a Tewameter TM300 that was e...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.16-20109
更新日期:2016-09-01 00:00:00
abstract:PURPOSE:The goal was to establish an accurate method for measuring intraocular pressure (IOP) in living adult zebrafish and to determine the average IOPs of genetically different strains and mutants. The overall purpose was to develop the zebrafish system for studies of IOP and glaucoma. Elevated IOP and anterior segme...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.04-0557
更新日期:2004-12-01 00:00:00
abstract:PURPOSE:The incidence of blindness is increasing, in part, because of abnormal ocular neovascularization. Anti-VEGF therapies have yielded impressive results; however, they are not a cure for blindness. Recently, metallothioneins (MTs) 1 and 2 have been implicated in the process of angiogenesis. Therefore, we investiga...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-14545
更新日期:2014-09-23 00:00:00
abstract:PURPOSE:To examine the distribution of human heat shock proteins (HSPs) HSP90, inducible HSP70 (iHSP70), constitutive and inducible HSP70 (cHSP70), HSP65, and human HSP27 in conjunctival biopsy specimens of ocular cicatricial pemphigoid (OCP), atopic keratoconjunctivitis, and healthy persons with cataract. METHODS:Usi...
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:7-Ketocholesterol is a highly toxic oxysterol found in abundance in atherosclerotic plaques and is believed to play a critical role in atherosclerosis. The purpose of this study was to identify and localize 7-ketocholesterol (7kCh) in the primate retina and to examine the potential consequences of its presence ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-2373
更新日期:2009-02-01 00:00:00
abstract:PURPOSE:To evaluate the possible correlation between the visual field defects in patients with primary open-angle glaucoma (POAG) and the expression and enzymatic activity of nitric oxide synthase (NOS) isoenzymes and nitrotyrosine in trabecular meshwork (TM) samples. METHODS:TM specimens were collected from 146 patie...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-1363
更新日期:2008-06-01 00:00:00
abstract:PURPOSE:To determine the impact of substratum compliance and latrunculin-B (Lat-B), both alone and together, on fundamental human trabecular meshwork (HTM) cell behavior. Lat-B is a reversible actin cytoskeleton disruptor that decreases resistance to aqueous humor outflow and decreases intraocular pressure. METHODS:HT...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-7857
更新日期:2011-12-02 00:00:00
abstract:PURPOSE:The authors compared the efficacy of two different forms of flicker perimetry: temporal modulation perimetry (TMP), which measures contrast thresholds for a fixed temporal frequency, and critical flicker frequency (CFF), which measures the highest frequency for which flicker is detected at a fixed contrast. ME...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1997-10-01 00:00:00
abstract:PURPOSE:To compare the optical coherence tomographic (OCT) correlates of two previously described angiographic subtypes of occult choroidal neovascularization (CNV). METHODS:We retrospectively analyzed 17 consecutive patients with previously untreated occult CNV who underwent both fluorescein angiography (FA) and volu...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,随机对照试验
doi:10.1167/iovs.13-12302
更新日期:2013-12-09 00:00:00
abstract:PURPOSE:To link psychophysical thresholds for blind spot awareness and filling-in with early neural components that underpin these perceptions. METHODS:Blind spot dimensions were quantified, after which an intrinsic stimulus (i.e., a rectangular bar of varying length centered within the blind spot) was used to determi...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.10-5910
更新日期:2011-01-25 00:00:00
abstract:PURPOSE:To identify risk factors for the development of high-risk proliferative diabetic retinopathy (PDR) and for the development of severe visual loss or vitrectomy (SVLV) in eyes assigned to deferral of photocoagulation in the Early Treatment Diabetic Retinopathy Study (ETDRS). METHODS:Multivariable Cox models were...
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:1998-02-01 00:00:00
abstract:PURPOSE:To improve the 30-year-old "trypsin digestion" procedure for isolation of the complete retinal vasculature, which, in its time, was a revolutionary advance that allowed important discoveries about diabetic retinopathy; to provide a method that will yield more consistent results when applied to retinas represent...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1993-05-01 00:00:00
abstract::The profound visual deficits associated with early monocular form deprivation (MD) are caused largely by competitive binocular interactions in the visual cortex. We tested the hypothesis that disrupting normal cortical binocularity prior to the onset of MD would reduce the degree of form deprivation amblyopia compared...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1992-04-01 00:00:00
abstract:PURPOSE:To determine the usefulness of polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in the identification and speciation of bacteria causing endophthalmitis. METHODS:PCR-RFLP was performed on 53 strains of 14 bacterial species (eight Gram positive and five Gram negative) collected from...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract:Purpose:Purpose The role of endothelial Yes-associated protein 1 (YAP) in the pathogenesis of retinal angiogenesis and the astrocyte network in the mouse oxygen-induced retinopathy (OIR) model is unknown. Methods:For in vivo studies, OIR was induced in conditional endothelial YAP knockout mice and their wild-type litt...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.61.4.1
更新日期:2020-04-09 00:00:00
abstract:Purpose:This study quantified the thickness and depth of the lamina cribrosa (LC) and peripapillary scleral thickness in high-resolution three-dimensional (3D) fluorescent reconstructions of the optic nerve head (ONH) in eyes from donors of African (AD) and European descent (ED). Methods:A total of 64 eyes (45 ED, 19 ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-21842
更新日期:2017-07-01 00:00:00
abstract::Accurate assessment of ocular alignment in monkeys is difficult because typical clinical methods require extensive cooperation by the subject or provide only a rough estimate of the misalignment. Recently, Brodie derived a geometrical model for determining the Hirschberg ratio in humans, and validated it photographica...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1989-06-01 00:00:00
abstract:PURPOSE:To evaluate by vector analysis the corneal astigmatic changes occurring in keratoconic corneas during a 3-year follow-up and to determine the relationship between these changes and other clinical changes. METHODS:Keratoconic eyes (n = 114) of 75 patients ranging in age from 14 to 70 years were retrospectively ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
doi:10.1167/iovs.10-6856
更新日期:2011-06-08 00:00:00
abstract:Purpose:To assess the agreement between structural (optical coherence tomography [OCT]) and functional (visual field [VF]) glaucomatous damage with an automated method and deviation/probability maps, and to compare this method to a metric method. Methods:Wide-field spectral-domain OCT scans, including the disc and mac...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.19-27920
更新日期:2019-10-01 00:00:00