Abstract:
:Extracellular matrix (ECM) turnover and remodeling are initiated, at least in part, by the regulated secretion of members of a family of matrix metalloproteinases. Human and bovine trabecular mesh-work in culture secrete interstitial collagenase, both the 72- and the 92-kD forms of type IV collagenase (gelatinases) and stromelysin, and the tissue inhibitor of metalloproteinases (TIMP). These proteinases and TIMP were identified by immunoblotting western transfers from sodium dodecylsulfate-polyacrylamide gel electrophoresis (SDS-PAGE) using several specific antiprotein and antipeptide polyclonal antibodies. Gelatinase and stromelysin enzymatic activities were also analyzed by substrate SDS-PAGE, in which proteinase substrates were polymerized into the gels before electrophoresis to allow subsequent activity assays. These matrix metalloproteinases and TIMP are secreted at low basal levels into trabecular culture medium; their secretion levels are increased several-fold by treatment of the cultures with the phorbol mitogen. 12-O-tetradecanoylphorbol-13-acetate (TPA). Characteristics of the trabecular matrix metalloproteinases and TIMP are similar to those secreted by numerous other tissues, including the retinal pigment epithelium. These proteinases may serve an important role in the maintenance and regulation of the trabecular extracellular matrix and, subsequently, of the aqueous humor outflow pathway in normal and glaucomatous eyes.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Alexander JP,Samples JR,Van Buskirk EM,Acott TSsubject
Has Abstractpub_date
1991-01-01 00:00:00pages
172-80issue
1eissn
0146-0404issn
1552-5783journal_volume
32pub_type
杂志文章abstract:Purpose:To assess clinical characteristics, foveal structure, mutation spectrum, and prevalence rate of Åland eye disease (AED)/incomplete congenital stationary night blindness (iCSNB). Methods:A retrospective survey included individuals diagnosed with AED at a national low-vision center from 1980 to 2014. A subset of...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.16-19445
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:To investigate the function of connective tissue growth factor (CTGF), a matricellular protein of the CCN (Cyr61/CTGF/Nov) family, in retinal vasculature during development and ischemia. METHODS:CTGF expression was determined using RT-PCR, immunohistochemistry, and transgenic mice carrying CTGF promoter-driven...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-7870
更新日期:2011-11-07 00:00:00
abstract::Substance P (SP)--like immunoreactivity has been localized to distinct retinal cell populations in the primate Macaca nemestrina by means of immunohistochemical techniques with a well-characterized monoclonal antiserum directed to SP. The specificity of the immunoreactive staining was established by absorption of the ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1982-08-01 00:00:00
abstract:Purpose:To determine if variation in anterior lamina cribrosa surface depth (ALCSD) differs between glaucoma patients of African (AD) and European descent (ED). Methods:A total of 178 eyes from 123 glaucoma patients in the African Descent and Glaucoma Evaluation Study (ADAGES) and Diagnostic Innovations in Glaucoma St...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.19-26645
更新日期:2019-10-01 00:00:00
abstract:PURPOSE:To study the spatial distribution of posterior pole choroidal thickness (CT) in healthy eyes using spectral domain optical coherence tomography (SD-OCT). METHODS:Fifty-nine eyes from 30 subjects with no retinal or choroidal disease were examined with high-definition (HD) OCT using macular volume cube scanning ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-8046
更新日期:2011-09-01 00:00:00
abstract::Male albino rats, injected intravenously or intracerebroventricularly with delta 1-tetrahydrocannabinol (THC), develop mudriasis. The median effective dose of the intravenous administration group was 5 mg/kg THC, whereas that for the intracerebroventricular route was 150 microgram/kg THC. Sympathectomy significantly d...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1982-03-01 00:00:00
abstract:PURPOSE:Identification of novel proteins involved in retinal neovascularization may facilitate new and more effective molecular-based treatments for proliferative retinopathy. Tubedown-1 (Tbdn-1) is a novel protein that shows homology to the yeast acetyltransferase subunit NAT1 and copurifies with an acetyltransferase ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.03-1410
更新日期:2004-10-01 00:00:00
abstract:PURPOSE:Liquid perfluorocarbons are used as temporary vitreous substitutes in the surgical management of complicated retinal detachment. The purpose of this study was to determine if physiologic benefits could also be derived from the high oxygen solubility of perfluorochemicals relative to vitreous, especially during ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:To investigate whether oxygen stresses experienced in retinopathy of prematurity (ROP) trigger signaling through reactive oxygen species (ROS) and whether the Janus kinase-signal transducer and activator of transcription (JAK/STAT) pathway lead to intravitreous neovascularization (IVNV) in an oxygen-induced ret...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-3256
更新日期:2009-07-01 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:To evaluate the association between elevated levels of plasma pentraxin 3 (PTX3) and the development and/or progression of diabetic retinopathy (DR). METHODS:In this case-control study, 92 diabetic patients with DR (group 3), 30 diabetic patients without DR (group 2), and 41 normal subjects (group 1) were enro...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-14864
更新日期:2014-08-26 00:00:00
abstract:PURPOSE:To study the aggregation of bovine gamma-crystallins in aqueous solutions and the effect of gamma(s)-crystallin on the aggregation of other gamma-crystallins. METHODS:Aggregation in aqueous solutions of gamma(s)-, gammaII-, and gammaIVa-crystallin was monitored by quasielastic light scattering. Aggregation in ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1998-08-01 00:00:00
abstract:Purpose:The activation of the urokinase-type plasminogen activator and its receptor system is associated with retinal diseases. Among peptide inhibitors of this system, UPARANT acts by preventing the onset of pathologic signs of neovascular ocular diseases. We investigated whether systemic UPARANT may act in a therapeu...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-21593
更新日期:2017-06-01 00:00:00
abstract:PURPOSE:Although much is now understood about the molecular structure of tight junctions (TJs), little is known about the regulation of their function during neural inflammatory disease processes in vivo. The mechanisms by which leukocytes transmigrate the blood-retina barrier (BRB) without affecting endothelial permea...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.04-1333
更新日期:2005-07-01 00:00:00
abstract:PURPOSE:To study the relationships between the refractive power of the crystalline lens, overall refractive error of the eye, and degree of nuclear cataract. METHODS:All phakic participants of the population-based Central India Eye and Medical Study with an age of 50+ years were included. Calculation of the refractive...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
doi:10.1167/iovs.11-8523
更新日期:2012-02-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10750
更新日期:2012-10-01 00:00:00
abstract:PURPOSE:Several nonsyndromic high-grade myopia loci have been mapped primarily by microsatellite markers and a limited number of pedigrees. In this study, whole-genome linkage scans were performed for high-grade myopia, using single nucleotide polymorphisms (SNPs) in 254 families from five independent sites. METHODS:G...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
doi:10.1167/iovs.08-2781
更新日期:2009-07-01 00:00:00
abstract:PURPOSE:To investigate the association of 25-hydroxyvitamin D with AMD. METHODS:A population-based, cross-sectional study using a nationwide, systemic-stratified, multistage-clustered sampling method involved a total of 17,045 subjects older than 40 years who participated in the Korean National Health and Nutrition Ex...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
doi:10.1167/iovs.14-14763
更新日期:2014-07-11 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract:Purpose:To assess interocular delays in amblyopes with stereopsis and to evaluate the relationship between interocular delays and the clinical characteristics. Methods:Twenty amblyopes with stereopsis (median, 400 arcseconds) and 20 controls with normal or corrected to normal visual acuity (≤0 logMAR) and normal stere...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.61.3.22
更新日期:2020-03-09 00:00:00
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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
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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 compare the mydriatic effect and the short-term corneal endothelial safety of intracamerally injected N-methyl-3,4-dihydroxyphenylamine (epinine) to phenylephrine in a porcine eye model. METHODS:One hundred twelve eyes from newly slaughtered pigs were used in this study. After pretreatment with 20 mg intrac...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.09-3651
更新日期:2009-11-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-3125
更新日期:2009-10-01 00:00:00
abstract:PURPOSE:Adipogenesis contributes to the pathogenesis of thyroid eye disease (TED). Thyrotropin receptor (TSHR) transcripts are present in orbital fat. This study was conducted to determine whether they are expressed as functional protein, and if so, whether this is restricted to TED orbits or to a particular stage in a...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract:PURPOSE:Adipose-derived stem cells (ASCs) have gained importance due to their myriad potential clinical applications. We hypothesize that progenitor cells also exist besides those conventionally isolated from the stromal vascular fraction (SVF). METHOD:Central and medial orbital adipose tissues obtained from patients ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-14441
更新日期:2014-07-03 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-17053
更新日期:2016-03-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.61.12.16
更新日期:2020-10-01 00:00:00
abstract::Determination of intraocular antibody synthesis against certain microorganisms is a diagnostic aid in identifying the causative agent in clinical uveitis. Little is known, however, concerning the kinetics and specificity of antibodies produced during intraocular inflammation. To investigate this subject we induced uve...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1989-02-01 00:00:00
abstract::Secretory component (SC) was studied by indirect immunofluorescence of the ocular surface epithelium. We find that conjunctival epithelium produces this component, and that it is absent in the corneal epithelium. Conjunctival epithelium loses its SC staining within 1 to 2 days as it grows over a denuded corneal stroma...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1981-01-01 00:00:00