Abstract:
:The component oxygen fluxes that constitute a single recording of corneal oxygen uptake when a polarographic oxygen sensor (POS) is placed in contact with the cornea were determined in the in vivo rabbit eye by removing the epithelium and injecting an air bubble into the anterior chamber. The relative contribution of epithelial oxygen consumption, stromal oxygen consumption and diffusion were approximately 55, 5 and 40%, respectively. It is demonstrated that differences in corneal oxygen uptake rates recorded with a POS primarily indicate differences in epithelial metabolic activity. Changes in epithelial metabolism can be determined by measuring both corneal oxygen uptake and corneal thickness. For example, if corneal thickness is constant, differences in epithelial oxygen flux (a) between two eyes of one person, or (b) before and after a procedure in the same eye, can be calculated by multiplying the difference in oxygen consumption measured with a POS by a factor of 1.8.
journal_name
Ophthalmic Resjournal_title
Ophthalmic researchauthors
Holden BA,Sulonen J,Vannas A,Sweeney DF,Efron Ndoi
10.1159/000265369subject
Has Abstractpub_date
1985-01-01 00:00:00pages
168-73issue
3eissn
0030-3747issn
1423-0259journal_volume
17pub_type
杂志文章abstract:PURPOSE:The purpose of our study was to investigate the profiles of inflammatory cytokines and the macrophage polarization gene in a choroidal neovascularization (CNV) mouse model before and after intravitreal aflibercept treatment. METHODS:The CNV mouse model was conducted by laser photocoagulation. A total of 58 cyt...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000513588
更新日期:2020-12-04 00:00:00
abstract:PURPOSE:The aim of this study was to investigate the effects of quercetin on vascular endothelial growth factor (VEGF)-induced choroidal and retinal angiogenesis in vitro using a rhesus macaque choroid-retinal endothelial (RF/6A) cell line. METHODS:RF/6A cells were cultured in Dulbecco's modified Eagle's medium contai...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000369824
更新日期:2015-01-01 00:00:00
abstract:AIMS:The purpose of this paper was to determine the lacrimal concentration of IL-1α and MMP-9 in patients with active ocular rosacea before and after systemic treatment with azithromycin or doxycycline. METHODS:After 4 weeks of therapy with azithromycin (500 mg/day, 3 days a week PO) or doxycycline (200 mg/day PO), la...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000489092
更新日期:2018-01-01 00:00:00
abstract::The high-voltage electron microscope (HVEM) permits examination of sections much thicker (up to 1 micron) than those usually used in transmission electron microscopy, which are approximately 70 nm in thickness. Two examples of the utility of the HVEM in research on the ultrastructure of the retinal pigment epithelium ...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000265457
更新日期:1986-01-01 00:00:00
abstract:AIMS:Experimental retinal research has gained great importance due to the ophthalmic pharmacotherapy era. An increasing number of drugs are constantly released into the market for the treatment of retinal diseases. In this review, animal species, animal models and toxicity assays in retinal research are discussed. MET...
journal_title:Ophthalmic research
pub_type: 杂志文章,评审
doi:10.1159/000312817
更新日期:2010-01-01 00:00:00
abstract::We measured prostaglandin E2 (PGE2) and prostacyclin levels in the vitreous bodies of 5 eyes of patients with diabetic retinopathy complicated by rhegmatogenous retinal detachment (RRD) and compared them with the corresponding levels in 9 nondiabetic eyes with the same condition as well as with 10 control eyes of dece...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000266995
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVE:In this study, we used a rat model of retinal detachment (RD) to investigate the effects of transient receptor potential mucolipin 1 (TRPML1) on photoreceptor cells and the underlying mechanism. METHODS:An RD model was established by subretinal injection of sodium hyaluronate, and mucolipin synthetic agonist...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000512104
更新日期:2020-10-07 00:00:00
abstract::Diabetic macular edema is considered the most important factor related to visual impairment in patients with diabetic retinopathy. Together with the use of grid and focal laser photocoagulation, today the intravitreal administration of pharmacotherapies represents the standard of care for the treatment of this complic...
journal_title:Ophthalmic research
pub_type: 杂志文章,评审
doi:10.1159/000362764
更新日期:2014-01-01 00:00:00
abstract::The effect of topical neutral formaldehyde on the blood-aqueous barrier of the rat was studied. Thirty minutes after irritation, the protein concentration of the aqueous humour had increased from the control value of 1.95 +/- 0.25 to 2.95 +/- 0.45 mg/ml (p less than 0.05). Extravasation of Evans blue dye from the iris...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000265442
更新日期:1986-01-01 00:00:00
abstract::Previous research from this laboratory showed that human lacrimal fluid peroxidase has cyclic variations during the menstrual cycle, correlated with plasma levels of 17beta-oestradiol. In the present investigation, variations of enzyme activity and total protein content during the oestrous cycle of young adult female ...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000055666
更新日期:2001-05-01 00:00:00
abstract::In order to investigate the combined influence of age and light, the b-wave and oscillatory potentials (OPs) of the electroretinogram (ERG) were recorded in 1.5-, 7- and 12-month-old WAG/Rij rats, reared under homogenous low-intensity cyclic light exposure. Wistar albino rats of the same ages, reared under the same co...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267282
更新日期:1993-01-01 00:00:00
abstract::We investigated the effects of hyperthermia on the healing process of experimental Pseudomonas corneal ulceration (PCU). Hartley guinea pigs were used to develop animal models of PCU. As a heat source, disposable chemical pocket warmers were applied. The healing process of PCU was compared between the heat-treated cor...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000078780
更新日期:2004-07-01 00:00:00
abstract::The aqueous humors of 100 freshly enucleated rabbit eyes were assessed within 10 min postmortem by taking samples in the last stage of corneal dissection following the Dikstein-Maurice procedure. Aqueous levels of partial pressure of carbon dioxide (pCO2) averaged 58.2 +/- 8.5 mm Hg to give calculated tCO2 and bicarbo...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267269
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:The pathogenesis of Behçet's disease (BD) may be related to excessive production of reactive oxygen species, activated neutrophils, and T lymphocytes. The goal of this prospective study was to investigate whether there is any relationship among the oxidant/antioxidant system and nitric oxide (NO) and malondia...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000077332
更新日期:2004-05-01 00:00:00
abstract::The refractive indices in various rat retinal layers, based on the total dry mass concentration, ranged from 1.369 to 1.385. The ratios of the refractive indices of neighboring retinal layers were near unity. This finding suggests that light passes through the rat retina without much refraction. ...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267223
更新日期:1993-01-01 00:00:00
abstract::VEGF is considered as an important factor in the pathogenesis of macular edema. VEGF induces the rupture of the blood retinal barrier and may also influence the retinal pigment epithelial (RPE) outer retinal barrier. The aim of this work was to analyze the influence of the VEGF receptor pathways in the modulation of t...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000119877
更新日期:2008-01-01 00:00:00
abstract::The tear levels of cholesterol of 17 patients with chronic blepharitis and 17 healthy subjects were determined by the photometric method. The mean cholesterol level of the patients was determined to be 56.1 +/- 8.9 (SEM) mg/dl. No statistically significant difference between the tear cholesterol levels of the two grou...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267034
更新日期:1990-01-01 00:00:00
abstract::Cataract is the leading cause of blindness worldwide. It is a multifactorial disease primarily associated with oxidative stress produced by free radicals. The protection offered by various antioxidants in cataract development is well established. Polyphenolic compounds present in green tea (Camellia sinensis) are repo...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000063881
更新日期:2002-07-01 00:00:00
abstract:PURPOSE:To investigate the effect of propolis, a natural resin produced by honeybees, in the treatment of alkali-injured rabbit eyes. METHOD:A corneal alkali burn was induced by applying filter paper immersed in 1 N NaOH on the central axis of the right corneas of 24 rabbits for 30 s. The animals were divided into thr...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000055581
更新日期:2000-01-01 00:00:00
abstract::In an experimental study using freshly enucleated pig's eyes, we investigated the endothelial cell loss on the cut edge. Remote-control rotating trephine was found to be the least injuring when it was applied to fresh and preserved human corneas. Corneal culture does not seem to enhance endothelial cell damage due to ...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000265224
更新日期:1982-01-01 00:00:00
abstract::Soluble dextran polymer derivatives (CMDBSs) are originally synthesized as heparin-like plasma substitutes. Some of them mimic heparin in its interactions and stabilize, protect and facilitate actions of heparin binding growth factors. The wound healing activity of one specific CMDBS was studied in a model of corneal ...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267497
更新日期:1994-01-01 00:00:00
abstract::HY-1 genotype chick lenses display epithelial hyperplasia and associated lens opacities. Membrane proteins from HY-1 and normal chick lenses were separated by isoelectric focusing, and 45Ca2+ binding capacities were determined. Markedly higher (congruent to 900-fold) binding of 45Ca2+ was observed in high molecular we...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000265397
更新日期:1985-01-01 00:00:00
abstract::To ascertain the effectiveness of topical antioxidant therapy on acute corneal inflammation, we have studied the effectiveness of topical treatment with a saline solution and with antioxidants such as 0.2% superoxide dismutase and 0.5% dimethylthiourea (DMTU) in a controlled experimental study. The evolution of the in...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267648
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:To examine melanocortin receptor (from MC-1 to MC-5) mRNA and the effect of alpha-melanocyte-stimulating hormone (alpha-MSH) on interleukin 8 (IL-8) and monocyte chemotactic protein 1 (MCP-1) expression in a human retinal pigment epithelial cell line (ARPE-19) stimulated with IL-1beta or tumor necrosis factor a...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000087699
更新日期:2005-09-01 00:00:00
abstract:PURPOSE:To evaluate the role of initial visual acuity (VA) as a potential prognostic factor for final VA in patients with branch retinal vein occlusion (BRVO). METHODS:A retrospective data analysis involving 163 patients with macular edema secondary to BRVO treated according to the recommendations of the Branch Vein O...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000321701
更新日期:2011-01-01 00:00:00
abstract:PURPOSE:To determine the effect of placing a pneumatic suction ring on intraocular pressure (IOP) in the cat and to design an improved method to generate a stable elevation of IOP. METHODS:A pneumatic suction ring was applied to the eye in cats while the IOP was monitored. Three groups of animals (10 per group) were u...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000055680
更新日期:2001-09-01 00:00:00
abstract::To evaluate the possible role of nitric oxide in the pathogenesis of exogenous prostaglandin (PG) induced aqueous flare elevation, we examined the effect of NG-nitro-L-arginine methyl ester (L-NAME), an L-arginine analogue acting as a specific inhibitor of nitric oxide synthase, on the elevation of aqueous flare in pi...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000267912
更新日期:1996-01-01 00:00:00
abstract:PURPOSE:To study the ability to appreciate qualitative features that indicate disease activity in patients with neovascular age-related macular degeneration (AMD) and to analyze the differences in automated retinal thickness measurement, using 1 time domain optical coherence tomography (TD-OCT) and 2 different spectral...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000325027
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:The aim of this work was to describe the optical coherence tomography (OCT) angiography (OCTA) features in paediatric Leber-Coats disease. METHODS:Three children presenting with unilateral, clinically active Leber-Coats disease were evaluated using spectral domain OCT and OCTA. OCT angiograms were analyse...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000478783
更新日期:2017-01-01 00:00:00
abstract:AIM:Ultraviolet (UV) B irradiation induces gene expression that leads to skin cancer. Among the transcription factors induced by UVB radiation exposure, the cyclic AMP response element-binding protein (CREB) is significant. Since several factors downstream of CREB signaling are known to be involved in pterygium pathoge...
journal_title:Ophthalmic research
pub_type: 杂志文章
doi:10.1159/000347124
更新日期:2013-01-01 00:00:00