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 age-matched control retinas. Accelerated AMD-like maculopathy develops in patients with retinal iron overload from the hereditary disease aceruloplasminemia. Mice with retinal iron overload resulting from knockout of ceruloplasmin and its homologue hephaestin exhibit retinal degeneration with some features of AMD, including subretinal neovascularization, accumulation of RPE lipofuscin and sub-RPE deposits, and RPE/photoreceptor death. Increased understanding of the mechanisms of retinal iron homeostasis may help in the development of therapies to prevent iron overload. For example, herein it is shown that one regulator of systemic iron homeostasis, HFE, is expressed in the RPE. Thus, patients with the common disease hereditary hemochromatosis, which is often caused by an HFE mutation, may have retinal iron overload predisposing to AMD. Preliminary data suggest that iron chelation can reduce RPE iron overload in mice and protect them from degeneration, suggesting that iron-binding drugs may one day prove useful in reducing RPE oxidative stress and decreasing the risk of AMD progression.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Dunaief JLdoi
10.1167/iovs.06-0568subject
Has Abstractpub_date
2006-11-01 00:00:00pages
4660-4issue
11eissn
0146-0404issn
1552-5783pii
47/11/4660journal_volume
47pub_type
abstract：PURPOSE:To investigate immediate and long-term changes in static ocular alignment with acute acquired superior oblique palsy (SOP) in monkeys. METHODS:The trochlear nerve was severed intracranially in two rhesus monkeys. After the surgery, the paretic eye was patched for 6 to 9 days, and then binocular viewing was all...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-1316
更新日期：2007-06-01 00:00:00
abstract：Purpose:Endophthalmitis models have reported the virulent role of Panton-Valentine leucocidin (PVL) secreted by Staphylococcus aureus on the retina. PVL targets retinal ganglion cells (RGCs), expressing PVL membrane receptor C5aR. Interactions between PVL and retinal cells lead to glial activation, retinal inflammation...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.62.1.4
更新日期：2021-01-04 00:00:00
abstract：PURPOSE:Corneas with scars and certain chronic pathologic conditions contain highly sulfated dermatan sulfate, but little is known of the core proteins that carry these atypical glycosaminoglycans. In this study the proteoglycan proteins attached to dermatan sulfate in normal and pathologic human corneas were examined ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1998-09-01 00:00:00
abstract：PURPOSE:Retinal ischemia/reperfusion (IR) is common in eye disorders. Pattern-recognition receptors (PRRs) are reported to initiate sterile inflammatory response. The role of PRRs in retinal IR injury is currently unknown. Thus, we investigated the expression and function of membrane and cytoplasmic PRRs during retinal...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-14380
更新日期：2014-08-05 00:00:00
abstract：PURPOSE:To determine the effect of taxol and etoposide, hydrophobic drugs with antifibrosis activity, on the outcome of filtration surgery in glaucomatous monkeys. METHODS:Elevated intraocular pressure was produced bilaterally in eight cynomolgus monkeys by laser treatment of the trabecular meshwork. Four animals subc...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1993-10-01 00:00:00
abstract：:Gross correlation coefficient between light-scattering intensity and the optical parameters obtained for 48 sections of eight lenses with nuclear cataracts were evaluated. On the basis of these and other data in the literature, the structural elements, within the lens fiber are identified. These give rise to the optic...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1981-03-01 00:00:00
abstract：PURPOSE:We identified a topographic relation of localized reticular pseudodrusen (RPD) to choroidal watershed zones (CWZ) and to changes in choroidal volumes (CV). METHODS:We included 30 eyes of 30 patients with RPD in an area <10 mm(2) and no other retinal alteration (76.7 ± 6.9 years). Patients underwent spectral-do...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-11923
更新日期：2013-05-07 00:00:00
abstract：PURPOSE:There is no consensus as how to calculate orbital soft tissue volume based on CT or MRI scans. The authors sought to validate their technique and to assess the intraobserver and interobserver variability of their calculations of bony orbital volume (OV), orbital fat volume (FV), and extraocular muscle volume (M...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-1030
更新日期：2008-05-01 00:00:00
abstract：PURPOSE:Ibuprofen and indomethacin are nonselective prostaglandin synthetase inhibitors that have been shown to improve oxygen-induced retinopathy in mice. Vascular endothelial growth factor (VEGF), insulin-like growth factor (IGF)-I, and growth hormone (GH) are potent growth factors involved in retinal development. Th...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-0057
更新日期：2006-07-01 00:00:00
abstract：PURPOSE:To determine the distribution of invasive and cytotoxic genotypes among ocular isolates of P. aeruginosa and investigate the influence of the type III secretion system (T3SS) on adhesion to conventional, cosmetic, and silicone hydrogel contact lenses (CL). METHODS:Clinical isolates from 2001 to 2010 were analy...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.11-8184
更新日期：2012-09-21 00:00:00
abstract：PURPOSE:To identify the underlying mechanisms by which lipid mediator lysophosphatidic acid (LPA) acts as a growth factor in stimulating extracellular signal-regulated kinase (ERK) and phosphatidylinositol 3'-kinase (PI3K) during corneal epithelial wound healing. METHODS:Epithelial debridement wounds in cultured porci...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-0203
更新日期：2007-02-01 00:00:00
abstract：PURPOSE:The aim of this study was to analyze lymphocyte infiltration using immunohistochemistry in proliferative diabetic retinopathy (PDR) membranes. METHODS:Sixteen patients, 13 with PDR and 3 without diabetes, underwent pars plana vitrectomy, and the epiretinal membrane was peeled. Formalin-fixed, paraffin-embedded...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.09-3767
更新日期：2009-12-01 00:00:00
abstract：PURPOSE:Local first-order multifocal electroretinogram (mfERG) implicit time (K1-IT) delays have proved to be important and predictive indicators of retinal function in diabetes. To better understand the nature of these delays, the authors examined the spatial association between K1-IT and second-order amplitudes (K2-S...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-0180
更新日期：2007-11-01 00:00:00
abstract：:A method for assessing the inward permeability of the blood-retinal barrier by fluorophotometry is presented. The permeability value is calculated with the fluorophotometer computer from fluorophotometric scan values in vitreous and non-protein-bound fluorescein concentration values in plasma. No diffusion coefficient...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1987-04-01 00:00:00
abstract：PURPOSE:To determine whether human retinal pigment epithelial (hRPE) cells produce activin, a growth factor in the transforming growth factor beta family, and to characterize growth regulatory effects of activin on retinal pigment epithelium. METHODS:mRNA expression was examined using polymerase chain reaction with pr...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1994-06-01 00:00:00
abstract：PURPOSE:Human blood contains low levels of protoporphyrin IX (PP IX), a photoactive compound that produces reactive oxygen species when exposed to light. It has been proposed that photoactivation of PP IX and subsequent generation of potentially tissue-damaging reactive oxygen may be a mechanism of retinal injury in re...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1993-09-01 00:00:00
abstract：Purpose:Vision decline with healthy aging is a major public health concern with the unceasing growth of the aged population. In order to prevent or remedy the age-related visual loss, a better understanding of the underlying causes is needed. The current psychophysical study used a novel noise paradigm to investigate t...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.18-25598
更新日期：2019-02-01 00:00:00
abstract：PURPOSE:High intraocular pressure (IOP) is a major risk factor for glaucoma, one of the leading causes of blindness worldwide. Because it has been demonstrated that African populations are at increased risk for glaucoma, the authors investigated the genetic basis of IOP in a sample of West Africans with type 2 diabetes...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.05-1537
更新日期：2006-08-01 00:00:00
abstract：:The role of heterozygous galactokinase deficiency in the development of presenile cataracts is presently undetermined. Erythrocyte galactokinase activity was measured from 95 normal Caucasian subjects and from 39 Caucasian patients who had developed idiopathic bilateral cataracts between ages 20 and 55. The diagnosis ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1986-03-01 00:00:00
abstract：PURPOSE:Vitreous degeneration contributes to several age-related eye diseases, including retinal detachment, macular hole, macular traction syndrome, and nuclear cataracts. Remarkably little is understood about the molecular interactions responsible for maintaining vitreous structure. The purpose of this study was to m...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-13026
更新日期：2014-01-03 00:00:00
abstract：Purpose:To validate widefield autofluorescence (AF) in vivo imaging of the retina in mice expressing green fluorescent protein (gfp) in microglia, and to monitor retinal microglia reconstitution in vivo after lethal irradiation and bone marrow transplantation. Methods:Transgenic Cx3cr1gfp/gfp and wildtype Balb/c mice ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-20916
更新日期：2017-04-01 00:00:00
abstract：PURPOSE:Macrophages are thought to be the first line of defense in many infectious diseases and are present in high numbers in corneas with Acanthamoeba keratitis. Conjunctival macrophage depletion was performed in an animal model of Acanthamoeba infection to determine the importance of macrophages in this disease. ME...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1996-06-01 00:00:00
abstract：PURPOSE:The outcome of glaucoma filtration surgery is affected by subconjunctival wound healing. The effects of the antiglaucoma drug latanoprost on the contractility of human Tenon fibroblasts (HTFs) cultured in a three-dimensional collagen gel were investigated. METHODS:HTFs were cultured in a type I collagen gel wi...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-0451
更新日期：2008-04-01 00:00:00
abstract：PURPOSE:To assess the reactive changes of the corneal epithelial thickness (ET) profile induced by small incision lenticule extraction (SMILE) for treatment of myopia. METHODS:This prospective observational study included 46 eyes of 23 patients that were scheduled for myopic SMILE. High-resolution spectral-domain opti...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.15-18879
更新日期：2016-07-01 00:00:00
abstract：:Various noninvasive test procedures were used to evaluate retinal function in a patient who had become night blind following vincristine chemotherapy. The results obtained were strikingly similar to those reported previously in subjects with recessively inherited stationary night blindness; the dark-adaptation curve w...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1984-07-01 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:To study in an infant rat model of retinopathy of prematurity, the rod photoreceptors, which are known to have attenuated photoresponses. METHODS:Rhodopsin was extracted from whole retinas, the thickness of the rod outer segment (ROS) layer was measured, large phagosomes were counted, and the ROS ultrastructur...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：PURPOSE:To demonstrate the presence of corneal stromal precursors that express neural markers in vitro. METHODS:To isolate sphere-forming cells, human corneal stromal cells were subjected to a reaggregation-free neurosphere assay in medium containing methylcellulose gel matrix. To promote differentiation, the isolated...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.04-0288
更新日期：2005-05-01 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:To compare accommodative facility in eyes with myopia to that in eyes with emmetropia or hyperopia and to determine whether accommodative facility can be used to predict an association with myopia. METHODS:In the Sydney Myopia Study, year-1 school children (6.7 +/- 0.4 years) were assessed for accommodative fa...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章,多中心研究
doi：10.1167/iovs.05-1078
更新日期：2006-11-01 00:00:00
