Abstract:
PURPOSE:To determine the effect of the nitric oxide donor sodium nitroprusside (SNP) on rat retinas and to see whether detrimental changes could be attenuated by known antiglaucoma drugs. METHODS:SNP was injected into the rat eye and retinas were analyzed by the terminal-deoxynucleotidyl transferase dUTP-linked nick end labeling (TUNEL) procedure and by immunohistochemistry. In some instances, retinal homogenates were analyzed by immunoblot for proteins associated with either photoreceptors or with cell death. Analysis of lipid peroxidation in retinal homogenates was by the thiobarbituric acid reactive species (TBARS) formation METHOD: RESULTS:SNP caused an increase in the number of retinal photoreceptors labeled for DNA breakdown by the TUNEL procedure and for caspase-3 and Bcl-2. After intravitreal injection of SNP, breakdown of poly(ADP-ribose) polymerase and an increase in the level of active forms of caspase-3 and Bcl-2 were detected. Furthermore, photoreceptor-specific rhodopsin kinase was reduced. SNP also stimulated formation of TBARS in retinal homogenates, occurring to a greater extent in retinas from young Royal College of Surgeons rats lacking photoreceptor degeneration. This supports the view that the photoreceptors are the prime target for SNP. Significantly, of several antiglaucoma drugs tested only metipranolol and its active metabolite, desacetylmetipranolol, blunted the SNP-induced retinal changes. CONCLUSIONS:Of all antiglaucoma drugs tested, only metipranolol was able to attenuate SNP-induced lipid peroxidation and activation of apoptosis in photoreceptors. Because oxidative injury has been implicated in the pathogenesis of certain ocular diseases, these findings could prove to be of clinical significance.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Osborne NN,Wood JPdoi
10.1167/iovs.04-0147keywords:
subject
Has Abstractpub_date
2004-10-01 00:00:00pages
3787-95issue
10eissn
0146-0404issn
1552-5783pii
45/10/3787journal_volume
45pub_type
杂志文章abstract:PURPOSE:A human biovar of Chlamydia trachomatis was used to develop a murine model of ocular chlamydial infection. The inbred mouse model will allow detailed immunologic studies during ocular infection, and use of a human biovar for infection may aid in identification of appropriate vaccine strategies against chlamydia...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1995-09-01 00:00:00
abstract:PURPOSE:Amblyopia is the commonest visual disorder of childhood. Yet the contributions of the two principal treatments (spectacle wear and occlusion) to outcome are unknown. This study was undertaken to investigate the dose-response relationship of amblyopia therapy. METHODS:The study comprised three distinct phases: ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.04-0250
更新日期:2004-09-01 00:00:00
abstract::Class II (DR or Ia) alloantigens are potent inducers of cell-mediated immune responses. However, the expression of Class II alloantigens on corneal cells, except for Langerhans cells within the limbal epithelium, has not previously been described. We have induced Ia expression on cultured rabbit corneal endothelial ce...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1985-04-01 00:00:00
abstract:PURPOSE:The retina of the blind mole rat Spalax ehrenbergi was compared with other vertebrate photosensitive organs in an attempt to correlate its histologic organization with a presumptive nonvisual photoreceptor role. METHODS:The eyes of eight adult animals were analyzed by light and electron microscopy, using conve...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2002-07-01 00:00:00
abstract:PURPOSE:Our prospective study was conducted to compare axial length elongation in myopic children receiving long-term overnight orthokeratology (OK) treatment to those wearing spectacles as controls. METHODS:There were 59 subjects enrolled in this study. The OK group comprised 29 subjects who matched the inclusion cri...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-8453
更新日期:2012-06-22 00:00:00
abstract:PURPOSE:The purpose of this study was to investigate the effect of bovine lactoferrin (BLF) on human corneal epithelial wound healing using an in vitro alkali-induced wound model and to understand its role in promoting wound healing. METHODS:Confluent human corneal limbal epithelial (HCLE) cells wounded using 0.5 micr...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-1882
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:Late infantile neuronal ceroid lipofuscinosis (NCL) is an inherited disorder characterized by progressive vision loss. The disease results from mutations in the TPP1 (CLN2) gene. Studies were undertaken to characterize the effects of a TPP1 frameshift mutation on the retina in Dachshunds. METHODS:A litter of f...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-1712
更新日期:2008-06-01 00:00:00
abstract::After a careful dissection of trabecular tissue from recent postmortem specimens, human trabecular cells were established in tissue culture with 250 ng/ml fibroblast growth factor (FGF), Dulbecco's modified Eagle's medium (DME), and 10% human serum. These conditions have allowed propagation of human trabecular cells f...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1979-10-01 00:00:00
abstract:PURPOSE:We previously showed that pre-exposure of the cornea to Toll-like receptor (TLR)5 ligand flagellin induces strong protective innate defense against microbial pathogens and hypothesized that flagellin modulates gene expression at the transcriptional levels. Thus, we sought to determine the role of one transcript...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-12453
更新日期:2013-11-15 00:00:00
abstract:PURPOSE:The presence of eosinophilic granulocytes in ocular tissue is a hallmark of the host response to environmental and parasite allergens. Using a mouse model of Onchocerca volvulus-mediated keratitis (river blindness), the present study examined the role of the cytokines interleukin (IL)-4 and IL-13 in regulating ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract:PURPOSE:Age-related cataract (ARC) is one of the most common causes of severe visual impairment among the elderly worldwide with four subtypes, such as cortical, nuclear, subcapsular, and mixed types. DNA damage and malfunction of DNA repair are believed to contribute to the pathogenesis of ARC. This study examined the...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10940
更新日期:2013-02-01 00:00:00
abstract:Purpose:To develop deep learning (DL) models for the automatic detection of optical coherence tomography (OCT) measures of diabetic macular thickening (MT) from color fundus photographs (CFPs). Methods:Retrospective analysis on 17,997 CFPs and their associated OCT measurements from the phase 3 RIDE/RISE diabetic macul...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-25634
更新日期:2019-03-01 00:00:00
abstract:PURPOSE:Amino-amide or amino-ester local anesthetics, which are currently used for topical ocular anesthesia, are short acting and may delay corneal healing with long-term use. In contrast, site 1 sodium channel blockers (S1SCBs) are potent local anesthetics with minimal adverse tissue reaction. In this study, we exami...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-16591
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:Lectin studies have shown that in the rabbit corneal epithelium, alpha-2,3 sialylation of O-linked glycans differentiates limbal and corneal epithelial cell phenotypes. Because sialic acid can be regulated at the level of the expression of sialyltransferases (STs), the purpose of the present study was to analyz...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1998-05-01 00:00:00
abstract:PURPOSE:Previous studies have demonstrated that in 129alpha3Cx46-/- mice, age-related nuclear cataract is formed. In the present study, a more in vivo-relevant model was generated to test the hypothesis that the calpain 3 gene is involved in age-related nuclear cataractogenesis in alpha3Cx46 knockout mice. METHODS:To ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.06-0926
更新日期:2007-06-01 00:00:00
abstract:PURPOSE:Current understanding of the genetic risk factors for age-related macular degeneration (AMD) is not sufficiently predictive of the clinical course. The VEGF pathway is a key therapeutic target for treatment of neovascular AMD; however, risk attributable to genetic variation within pathway genes is unclear. We s...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-14047
更新日期:2014-05-08 00:00:00
abstract:Purpose:To determine if there is structural and functional recovery of the retina from light induced retinal degeneration, and to evaluate the role of the oxidative stress response elements Nrf2, SOD1, DJ-1, and Parkin in such a recovery process. Methods:Eyes from C57BL/6J (B6J) mice and from oxidative stress response...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-25751
更新日期:2019-03-01 00:00:00
abstract:PURPOSE:To characterize the effect of postural IOP elevation and pharmacological IOP lowering on retinal ganglion cell (RGC) function in the DBA/2J mouse model of glaucoma. METHODS:Four groups of DBA/2J mice (3 months old, n = 7; 5 months old, n = 7; 10 months old, n = 7; and 11 months old, n = 8) were anesthetized by...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-0582
更新日期:2007-10-01 00:00:00
abstract::Iron is a potent generator of oxidative damage whose levels increase with age, potentially exacerbating age-related diseases. Several lines of evidence suggest that iron accumulation may be a factor in age-related macular degeneration (AMD). AMD retinas have more iron within the photoreceptors, RPE, and drusen than do...
journal_title:Investigative ophthalmology & visual science
pub_type:
doi:10.1167/iovs.06-0568
更新日期:2006-11-01 00:00:00
abstract:Purpose:To evaluate the potential of lactoferrin (Lf) as a diagnostic biomarker for ocular diseases using a meta-analytic approach. Methods:All original studies reporting an estimate of the average Lf concentration in healthy subjects and those affected by ocular diseases were searched up to March 2020. The DerSimonia...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.61.12.9
更新日期:2020-10-01 00:00:00
abstract:PURPOSE:Mucosa-associated lymphoid tissue (MALT) represents a part of the immune system located at mucosal surfaces. Its presence in the human eye is the point in question in the current study. Its occurrence, components, topography, and probable functional significance in the human conjunctiva and lacrimal drainage sy...
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:Bevacizumab eyedrops inhibit corneal neovascularization. The purpose of this study was to analyze the safety profile of VEGF-A neutralization at the ocular surface. METHODS:Bevacizumab eyedrops (5 mg/mL) and an antimurine VEGF-A antibody (250 microg/mL) were applied to normal murine corneas five times a day fo...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-1129
更新日期:2009-05-01 00:00:00
abstract::The unscarified corneas of rabbits were inoculated with 50 microliter of 2-4 X 10(6) PFU/ml of herpes simplex virus, type 1 (HSV-1), McKrae strain in 10 separate experiments over a 12-month period. Sixty of 104 (57.7%) rabbits survived to postinoculation (PI) day 20. These sixty rabbits were swabbed with dacron-tipped...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1985-04-01 00:00:00
abstract:PURPOSE:As efforts to noninvasively measure intracranial pressure (ICP) increase, we thought it important to investigate the timing of retinal venous pulsation in relation to the intraocular and intracranial pressure pulses. METHODS:Neurosurgical patients undergoing continuous direct ICP monitoring had video recording...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-9837
更新日期:2012-07-10 00:00:00
abstract:PURPOSE:To validate velocity measurements produced by spectral domain optical coherence tomography (SD-OCT) in an in vitro laminar flow model. METHODS:A 30-mL syringe filled with skim milk was inserted into a syringe pump. Intravenous (i.v.) tubing connected the syringe within the pump to a glass capillary tube (inter...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-2305
更新日期:2009-02-01 00:00:00
abstract::Vitamin E is used to ameliorate retinopathy of prematurity, but little is known about baseline vitamin E levels in retinas of premature infants or the effect of vitamin E supplementation on these levels. Vitamin E and C levels were measured in mature retinas (1 month to 73 years) and in retinas of premature infants (2...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract:PURPOSE:To examine human corneal morphology and nerve recovery 5 years after photorefractive keratectomy (PRK). METHODS:Fourteen eyes of 14 patients (ages, 27-53 years) who underwent 6-mm diameter PRK for low to moderate myopia (spherical equivalent [SE] -2.5 to -8.0 D) were examined once 5 years after surgery. Nine h...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0247
更新日期:2003-03-01 00:00:00
abstract:PURPOSE:We explored the role of myeloid-related protein 8 and 14 (MRP8/14) in Pseudomonas aeruginosa (PA) keratitis. METHODS:MRP8/14 mRNA levels in human corneal scrapes and mouse corneas infected by PA were tested using real-time PCR. MRP8/14 protein expression in C57BL/6 (B6) corneas was confirmed using Western blot...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10172
更新日期:2013-02-01 00:00:00
abstract:PURPOSE:Glaucoma is an optic neuropathy commonly associated with elevated intraocular pressure (IOP), leading to optic nerve head (ONH) cupping, axon loss, and apoptosis of retinal ganglion cells (RGCs), which could ultimately result in blindness. Brn3b is a class-4 POU domain transcription factor that plays a key role...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-15008
更新日期:2015-01-13 00:00:00
abstract:PURPOSE:To investigate the role of N-cadherin and hepatocyte growth factor (HGF) in the invasion of collagen type I by human retinal pigment epithelial (RPE) cells. METHODS:RPE sheets from eight human eyes were used for characterization through Western blot analysis of the expression of cadherin in total lysates or af...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.01-1096
更新日期:2003-02-01 00:00:00