Abstract：
PURPOSE:Given reports of corneal edema after endothelial exposure to platelet activating factor (PAF), the authors have investigated whether PAF can affect the function of corneal endothelium in vitro. METHODS:The endothelial side of deepithelialized rabbit corneas was perfused with BSS+ and test agents: PAF, its inactive receptor ligand analog Lyso-PAF, and its antagonist BN52021. Stromal thickness was determined by specular microscopy. Translayer-specific electrical resistance (rho) was measured in cultured bovine corneal endothelial cells grown on permeable substrates at 36.5 degrees C. RESULTS:Control corneas perfused with BSS+ or with BSS+ containing Lyso-PAF swelled at a very slow rate (6.2 +/- 0.1, and 7.9 +/- 0.2 microns/hour, respectively). Corneas exposed to PAF swelled appreciably faster and at rates that were a saturable function of PAF (K(m), 2.1 microM); maximal rates of swelling were < 20 microns/hour, indicating no appreciable damage to intercellular junctions. BN52021 prevented PAF-induced swelling (Ki, 1.1 microM). PAF led also to a decrease in rho (from 42.8 +/- 1.4 to 24.5 +/- 0.6 omega cm2 in 1 hour; 46.8 +/- 1.5 to 38.3 +/- 1.4 omega cm2 in control layers; and 43.0 +/- 1.2 to 30.8 +/- 1.6 omega cm2 in layers exposed to PAF+BN52021). Such rho changes are consistent with swelling of intercellular spaces. CONCLUSIONS:Results suggest that PAF inhibits transendothelial fluid transport on binding to an endothelial cell receptor for it; continuous stimulation of a PAF-induced signaling cascade may lead to such inhibition. From these and other results, fluid transport might result from cascades activating sequentially basolateral and apical transporters or channels.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Zhu Z,Kuang K,Kang F,Li J,Fischbarg Jsubject
Has Abstractpub_date
1996-08-01 00:00:00pages
1899-906issue
9eissn
0146-0404issn
1552-5783journal_volume
37pub_type
杂志文章abstract：:Intraocular pressure response to systemically administered osmotic agents was studied in albino rabbits with one optic nerve transected and the fellow optic nerve left intact. There eas a significant increase in intraocular pressure of both eyes following water ingestion but no significant difference in the pressure r...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：PURPOSE:To compare two spectral domain optical coherence tomography (SD-OCT) devices for the identification of angle structures and the presence of angle closure. METHODS:This was a prospective comparative study. Consecutive patients underwent gonioscopy and anterior segment imaging using two SD-OCT devices (iVue and ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-10132
更新日期：2012-08-03 00:00:00
abstract：Purpose:Tumor necrosis factor (TNF)-α is upregulated in eyes following corneal alkali injury and contributes to corneal and also retinal damage. Prompt TNF-α inhibition by systemic infliximab ameliorates retinal damage and improves corneal wound healing. However, systemic administration of TNF-α inhibitors carries risk...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-20339
更新日期：2017-01-01 00:00:00
abstract：PURPOSE:To investigate functional abnormalities in mutations in the peripherin (RDS) gene leading to different clinical types of autosomal dominant retinal disease--macular degeneration and retinitis pigmentosa. METHODS:Patients from two families, one with a mutation in codon 167 (Gly167Asp) leading to macular degener...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1994-07-01 00:00:00
abstract：PURPOSE:To evaluate the performance of an automated retinal image quality assessment system for use in automated diabetic retinopathy grading. METHODS:Algorithmic methods have been developed for assessing the quality of 45 degrees single field retinal images for use in diabetic retinopathy screening. For this purpose,...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.05-1155
更新日期：2006-03-01 00:00:00
abstract：PURPOSE:The purpose of this study was to compare the accommodative performance of the amblyopic eye of children with unilateral amblyopia to that of their nonamblyopic eye, and also to that of children without amblyopia, during both monocular and binocular viewing. METHODS:Modified Nott retinoscopy was used to measure...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-14948
更新日期：2015-01-27 00:00:00
abstract：:Visual thresholds and rhodopsin levels were determined in nine subjects with autosomal dominant retinitis pigmentosa. The subjects fell into two groups, corresponding to two subtypes of the disease revealed by two-color, dark-adapted static perimetry. In the first of these subtypes, rod-mediated function was variably ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1988-08-01 00:00:00
abstract：:Hypothesis-driven science is expected to result in a continuum of studies and findings along a discrete path. By comparison, serendipity can lead to new directions that branch into different paths. Herein, I describe a diverse series of findings that were motivated by hypotheses, but driven by serendipity. I summarize...
journal_title：Investigative ophthalmology & visual science
pub_type：
doi：10.1167/iovs.11-8330
更新日期：2011-09-29 00:00:00
abstract：Purpose:To investigate the effects of tear film instability (TFI) induced by sustained tear exposure (STARE) on sensory responses to corneal cold, mechanical, and chemical stimuli. Methods:Fifteen normal subjects were enrolled. TFI was induced during 10 repeated trials of STARE. Pneumatic cold, mechanical, and chemica...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.19-27298
更新日期：2019-07-01 00:00:00
abstract：PURPOSE:Human leukocyte antigen (HLA) polymorphisms have been associated with the development of autoimmune diseases. In uveal melanoma, a high expression of HLA classes I and II, and infiltration with lymphocytes and macrophages are associated with a bad prognosis. Inflammation has an important role in this malignancy...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.11-8901
更新日期：2012-05-04 00:00:00
abstract：:An imaging fundus reflectometer has been used to study the distribution and regeneration of visual pigments in the retina of the adult living cat. Measurements were made over an area of tapetal retina extending 25 degrees nasal and 40 degrees temporal to the area centralis on the horizontal meridian and 5 degrees infe...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1988-07-01 00:00:00
abstract：PURPOSE:Compensatory eye movements (CEM) maintain a stable image on the retina by minimizing retinal slip. The optokinetic reflex (OKR) and vestibulo-ocular reflex (VOR) compensate for low and high velocity stimuli, respectively. The OKR system is known to be highly nonlinear. The VOR is generally modeled as a linear s...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.15-18605
更新日期：2016-07-01 00:00:00
abstract：Purpose:Despite the potential for adaptive optics scanning light ophthalmoscopy (AOSLO) to quantify retinal disease progression at the cellular level, there remain few longitudinal studies investigating changes in cone density as a measure of disease progression. Here, we undertook a prospective, longitudinal study to ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.18-25904
更新日期：2019-04-01 00:00:00
abstract：Purpose:To describe the phenotypic spectrum of retinal disease caused by the c.2991+1655A>G mutation in CEP290 and to compare disease severity between homozygous and compound heterozygous patients. Methods:Medical records were reviewed for best-corrected visual acuity (BCVA), age of onset, fundoscopy descriptions. Fov...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.18-24817
更新日期：2018-09-04 00:00:00
abstract：PURPOSE:To compare the effectiveness of upper punctal occlusion versus that of lower punctal occlusion in dry eye patients. METHODS:One eye's upper punctum and the contralateral eye's lower punctum were occluded with collagen plugs in 20 dry eye patients. The same procedure was performed in 20 normal subjects. The upp...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章,随机对照试验
doi：10.1167/iovs.09-5097
更新日期：2010-11-01 00:00:00
abstract：:Exposure of denuded rabbit corneal stromal carriers for 24 hr at 37 degrees C to suspensions of rabbit corneal epithelial cells grown in tissue culture resulted in the establishment of a cell layer on the carriers. The cell layers persisted for at least 1 week of incubation and were one to three cells thick. They cons...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1982-07-01 00:00:00
abstract：PURPOSE:To investigate how mitomycin C (MMC) modulates corneal fibroblast migration and its molecular mechanisms in the wound healing process. METHODS:After treatment with 0 and 0.2 mg · mL(-1) MMC for 5 minutes, effect of MMC on cell migration of human corneal fibroblasts (HCFs) was examined with a cell migration ass...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.11-9203
更新日期：2012-03-21 00:00:00
abstract：PURPOSE:The expression of the lens fiber cell integral membrane proteins MP20, the alpha 3 gap junction protein (connexin 46), and MP26 (MIP) was determined both during development of the bovine fetal lens and in different animal species. METHODS:The relative levels of the mRNA species coding for these proteins was de...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1993-03-01 00:00:00
abstract：PURPOSE:To compare spectral-domain optical coherence tomography (SD-OCT) standard structural measures and a new three-dimensional (3D) volume optic nerve head (ONH) change detection method for detecting change over time in severely advanced-glaucoma (open-angle glaucoma [OAG]) patients. METHODS:Thirty-five eyes of 35 ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章,多中心研究
doi：10.1167/iovs.15-18929
更新日期：2016-07-01 00:00:00
abstract：:Electroretinographic studies of myctalopic Appaloosa horses demonstrated photopic and scotopic abnormalities similar to those in humans with congenital stationary night blindness (CSNB) of the Schubert-Bornschein type. The phototopic abnormalities consisted of reduced b-wave amplitudes and slower than normal b-wave im...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1978-08-01 00:00:00
abstract：:Exposure of adult male and female albino rats to high-intensity illumination for 17.5 hr results in a marked, transient exophthalmos, which persists for approximately 48 hr after the light exposure. Upon examination of the Harderian glands in these rats, a significant glandular weight increase was observed up to 2 day...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1979-12-01 00:00:00
abstract：PURPOSE:To evaluate the efficacy of a computerized optokinetic nystagmus (OKN) test in detecting visual acuity (VA) of >20/200. METHODS:This was a combined retrospective and prospective, noninterventional study. In phase I of the study, data from 168 eyes of 154 subjects who underwent the computerized objective VA tes...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.11-7663
更新日期：2011-09-27 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：:An animal model of chronic cicatrizing trachoma has been produced by repeated ocular inoculation with Chlamydia trachomatis serotype E, a genitally transmitted strain. We have now produced a chronic follicular conjunctivitis on cynomolgus monkeys by repeated inoculation with C. trachomatis serotype A, which has been i...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1982-10-01 00:00:00
abstract：:The color matches of 46 retinitis pigmentosa (RP) patients were found to differ significantly from those of 55 unaffected observers. The color matches of group I (trichromatic) RP observers were more protanomalous (i.e., required a greater red/green mixture ratio) than those of unaffected observers. The matches of gro...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1980-08-01 00:00:00
abstract：PURPOSE:Intraocular pressure (IOP) is dynamic and can be influenced by the use of tonometers. The authors developed a technique to implant a telemetric pressure transducer to measure IOP continuously in unrestrained rabbits. METHODS:A commercial telemetric pressure transducer was implanted subcutaneously on the dorsal...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：PURPOSE:To map the gene for autosomal dominant cataracts (ADC) in an American white family of European descent. METHODS:Ophthalmic examinations and linkage analyses using a variety of polymorphisms were performed; two-point lod scores calculated. RESULTS:Affected individuals (14 studied) exhibited variable expressivi...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2000-08-01 00:00:00
abstract：PURPOSE:To biochemically characterize the receptor for connective tissue growth factor (CTGF) of human corneal fibroblasts (HCF). METHODS:Radiolabeled recombinant human CTGF was used to determine the specificity and time course of binding to low-passage cultures of HCF. The affinity and number of receptors present wer...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-9425
更新日期：2012-06-05 00:00:00
abstract：PURPOSE:Bayesian estimators allow the frequency of visual field progression rates in the population (the prior distribution) to constrain rate estimates for individuals. We examined the benefits of a prior distribution accounting for one of progression's major risk factors--whether intraocular pressure is treated--to g...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-11668
更新日期：2013-03-01 00:00:00
abstract：PURPOSE:We recently presented a transfemoral endovascular coiling technique for inducing experimental retinal ischemia in pigs. Substantial variation was seen in the degree of ischemia. It was hypothesized that the blood supply to the retina may originate from both the ipsilateral and contralateral ophthalmic arteries ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-12376
更新日期：2013-09-09 00:00:00
