Abstract:
PURPOSE:Previous studies showed that lutein and zeaxanthin, the major human retinal carotenoids, are concentrated in the macula. In this study, the carotenoids in human macular and peripheral retina and the retinal pigment epithelium (RPE) were analyzed. They were also determined in the rod outer segments (ROS) before and after removal of extrinsic membrane proteins. METHODS:Carotenoids were extracted from the macular and peripheral sections of human retina and RPE with hexane in dim light and analyzed by high performance liquid chromatography (HPLC). ROS samples equivalent to the amount in a single retina were also analyzed. RESULTS:Retinal carotenoid amounts were similar to previous reports, but only low levels were detected in the RPE. Regional ratios of lutein:zeaxanthin were similar in the retina and RPE. Approximately 25% of the total retinal carotenoids were found in the ROS, indicating that a substantial portion of peripheral retinal carotenoids are present in the ROS. However, after removal of the extrinsic membrane proteins and subsequent analysis, carotenoids were not detected. CONCLUSIONS:Most of the carotenoids in the human peripheral retina are present in the ROS. These ROS carotenoids are associated with soluble or salt-dependently bound proteins.
journal_name
Curr Eye Resjournal_title
Current eye researchauthors
Sommerburg OG,Siems WG,Hurst JS,Lewis JW,Kliger DS,van Kuijk FJdoi
10.1076/ceyr.19.6.491.5276subject
Has Abstractpub_date
1999-12-01 00:00:00pages
491-5issue
6eissn
0271-3683issn
1460-2202journal_volume
19pub_type
杂志文章abstract::Corneal acidosis has been shown to reduce corneal hydration control (CHC) as measured by the rate, expressed as the percent recovery per hour (PRPH), at which the thickness of the cornea decreases exponentially after an increased hydration load. Since the effect of pH on corneal function is of scientific interest and ...
journal_title:Current eye research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/02713689508999932
更新日期:1995-05-01 00:00:00
abstract::The effect of monensin on the cytotoxic effect of antitransferrin receptor immunotoxin (IT) was determined on cultured, human retinal pigment epithelial (hRPE) cells. Human RPE cells were treated with 0.1-10,000 ng/ml IT with and without 0.01-0.1 microM monensin, a lysosomotropic reagent that can influence IT activity...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689308999495
更新日期:1993-01-01 00:00:00
abstract:PURPOSE/AIM OF THE STUDY:Polarization-sensitive anterior-segmental optical coherence tomography (PS-OCT) is useful to evaluate the filtering blebs after trabeculectomy. However, the attenuation phenomenon of OCT signal disturbs the visibility of intra-bleb's structure and distribution of birefringence; a specific param...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2020.1825749
更新日期:2020-10-04 00:00:00
abstract:PURPOSE:To study the relationship of oxygen level and glucose concentration on the secretion of vascular endothelial growth factor (VEGF) mRNA and protein in several types of cultured retinal cells. MATERIALS AND METHODS:Several types of human and bovine retinal cells were cultured in medium without glucose, or contai...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2010.521968
更新日期:2011-02-01 00:00:00
abstract:PURPOSE:To develop a standardized method for measuring from iris photographs, light and dark segments of areas and densities of iris color. METHODS:Computerized image analysis was used to measure the iris photographs. The reproducibility of this method was studied in 30 normal eyes with three different colored irides,...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.22.6.412.5490
更新日期:2001-06-01 00:00:00
abstract::We have either introduced into the vitreous space or perfused through the anterior chamber of macaque monkey eyes two anionic tracers, anionic ferritin (AF) and horseradish peroxidase (HRP) and a cationic probe, cationic ferritin (CF). We have observed that the anionic molecules, but not the cationic one, are transpor...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688509025167
更新日期:1985-04-01 00:00:00
abstract::Glucocorticoid-induced ocular hypertension has been demonstrated in both animals and humans. It is possible that glucocorticoid-induced changes in trabecular meshwork (TM) cells are responsible for this hypertension. In order to elaborate further the effect of glucocorticoids on the trabecular meshwork, the ultrastruc...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689309020383
更新日期:1993-09-01 00:00:00
abstract::Ocular aldehyde oxidase was purified for the first time from bovine ciliary body cytosol by ammonium sulfate fractionation and successive HPLC using DEAE anion-exchange and hydroxyapatite columns. The purified enzyme was homogeneous by the criterion of sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The mol...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688909025807
更新日期:1989-07-01 00:00:00
abstract::Although patients with diabetic retinopathy have been reported to have elevated vitreal IGF-I levels, it is not known whether diabetes also affects the levels of vitreal IGF binding proteins (IGFBPs) which control IGF's bioavailability. To address this issue, vitreal IGFBP levels were assayed in human diabetics, rats ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689408999886
更新日期:1994-07-01 00:00:00
abstract:PURPOSE:Membrane-associated mucins (MAMs) play important roles in barrier function and tear stability, and their expression on the ocular surface is altered in dry eye disease. Rebamipide is a mucin secretagogue that promotes the production of mucin-like glycoproteins in human corneal epithelial (HCE) cells. However, t...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2013.834939
更新日期:2014-02-01 00:00:00
abstract::Focused ultrasound concentrates a large amount of ultrasonic energy into a small focal zone. We have used new techniques to develop a transducer that creates intracorneal, thermally induced lesions in rabbit eyes in vitro. Histologic study shows that these lesions are confined to the stroma and that the procedure caus...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688209000777
更新日期:1982-01-01 00:00:00
abstract::Spontaneous ocular shedding and adrenergic induction of ocular shedding were examined in rabbits infected with ten strains of herpes simplex virus type 1 (HSV-1): McKrae, KOS, F, Rodanus, 17 Syn+, RE, E-43, SC-16, MacIntyre, and CGA-3. All ocular inoculations were with 50 microliter of HSV-1 with titers between 1-10 X...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688709020074
更新日期:1987-01-01 00:00:00
abstract:PURPOSE:To study whether there exists a relationship between retinal nerve fiber layer thickness and oxygen saturation and to identify whether perivascular thickness (pRNFL) or quadrant thickness (qRNFL) has a stronger correlation. METHODS:Patients without any detectable ocular abnormality on complete ophthalmic evalu...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2015.1104361
更新日期:2016-09-01 00:00:00
abstract:PURPOSE:Accumulation of lipoprotein-derived lipids including esterified and unesterified cholesterol in Bruch's membrane of human eyes is a major age-related change involved in initiating and sustaining soft drusen in age-related macular degeneration (AMD). The apolipoprotein (apo) A-I mimetic peptide 4F is a small ant...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2017.1370118
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:The pneumococcal capsule is required for pathogenesis in systemic infections, yet reports show most conjunctivitis outbreaks are caused by nonencapsulated pneumococci, while keratitis infections are caused by encapsulated strains. This study aims to determine the effect of capsule in pneumococcal keratitis and ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2010.492462
更新日期:2010-09-01 00:00:00
abstract:PURPOSE:Several procedures in cataract surgery carry the risk of high temperature increases in the capsular bag. The present study was undertaken to determine the shrinkage temperature of the human lens capsule and to investigate the effect of temperature on the mechanical behavior of the lens capsule. METHOD:Thermal-...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.17.5.470.5198
更新日期:1998-05-01 00:00:00
abstract:PURPOSE:To determine whether substance P is present in human tears. METHODS:Tear samples (1-2 microliters) were collected from one eye of each of 12 subjects. Two of the eyes had dry eye syndrome, two wore contact lenses and had dry eye syndrome, and eight were normal. Five of the eight normal eyes were scheduled to u...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.16.9.960.5040
更新日期:1997-09-01 00:00:00
abstract:PURPOSE:To determine the relative expression of metallothionein isoforms and their differential induction by oxidative stress in cultured RPE cells and to localize the isoforms in the human chorioretinal complex. METHODS:Total RNA was isolated from cultured human retinal pigment epithelial cells using TRI-Reagent. An ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.24.1.12.5426
更新日期:2002-01-01 00:00:00
abstract:PURPOSE:To assess the rate of achieving optimal metabolic control among subjects with type 2 diabetes, to elucidate the influence of suboptimal control on diabetic retinopathy (DR) and to analyze the risk factors associated with DR in the subjects with suboptimal control. MATERIAL AND METHODS:A population-based, cross...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2012.669005
更新日期:2012-06-01 00:00:00
abstract::We assessed the role of platelet-activating factor (PAF) in corneal allograft rejection and evaluated the effects of a PAF antagonist on corneal inflammation, cellular infiltration, vascularization, and edema. Rabbits with vascularized corneas served as recipients of allogeneic cornea grafts. Rabbits with normal corne...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689409042408
更新日期:1994-02-01 00:00:00
abstract::Forty-five patients with virologically confirmed dendritic keratitis were treated in a randomized, double-blind controlled study with a basic therapy of trifluorothymidine (TFT) eye drops. In addition they received different human recombinant interferon (rHu IFN) eye drops. The following results were obtained for aver...
journal_title:Current eye research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/02713688709020104
更新日期:1987-01-01 00:00:00
abstract:PURPOSE:Due to a possible link in humans between atherosclerosis, a high-fat diet, and the development of age-related retinal degenerations, we investigated retinal changes with age and diet in high-fat-fed C57BL/6 mice, a mouse model of human atherosclerosis. METHODS:We fed C57BL/6J mice either a normal chow diet or ...
journal_title:Current eye research
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:To develop an improved diagnostic test for rod-cone dysplasia type 1 (rcd1). The rcd1 phenotype is an early onset, autosomal recessive disease caused by a mutation in the canine rod cyclic GMP phosphodiesterase beta-subunit (PDE6B) gene. A G to A transition in codon 807 at nucleotide position 2420 results in a ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689609000770
更新日期:1996-05-01 00:00:00
abstract:PURPOSE:The expression of human leukocyte antigen (HLA) class II molecules on the cell surface is necessary for the presentation of peptide antigens to helper CD4 T lymphocytes of the immune system. We studied the immunoexpression of HLA class II antigen in conjunctival precursor lesions and conjunctival squamous cell ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.27.3.151.16052
更新日期:2003-09-01 00:00:00
abstract:PURPOSE/AIM:To quantitatively analyse the evolution of TUNEL-labeling, after in vivo exposure to UVB. METHODS:Altogether, 16 Sprague Dawley rats were unilaterally exposed in vivo for 15 min to close to threshold dose, 5 kJ/m(2), of ultraviolet radiation in the 300 nm wavelength region. Animals were sacrificed in group...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2013.783079
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:Endothelin-1 (ET-1) is a potent vasoconstrictive and neural peptide that has been demonstrated to be present and functionally active and important in the eye. This study was undertaken to examine for the first time the cellular distribution of ET-1 in the whole human eye. METHODS:Twelve human eyes were examine...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.17.5.541.5187
更新日期:1998-05-01 00:00:00
abstract:PURPOSE:NiCl(2) (15 microM) enhances the ERG b-wave amplitude of vertebrate retina, up to 1.5-fold by blocking E/R-type voltage-gated Ca(2+) channels, which is mediated by blocking the release of GABA onto ionotropic GABA-A and GABA-C receptors. In vivo, it is likely that zinc, rather than nickel ions, may be involved ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713680903509410
更新日期:2010-04-01 00:00:00
abstract::Approximately 90% of all ophthalmic drug formulations are now applied as eyedrops. Although eyedrops are convenient and well accepted by patients, about 95% of the drug contained in the drops is lost due to absorption through the conjunctiva or through the tear drainage. A major fraction of the drug eventually enters ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713680500346633
更新日期:2005-12-01 00:00:00
abstract:OBJECTIVES:To evaluate the suitablity of commercially available moisture retention eyewear for treating evaporative dry eye. METHODS:Eleven patients with evaporative dry eyes were prescibed moisture retention eyewear for 3 months in addition to regular lubricant eye drops. Frequency and severity of dry eye symptoms, c...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2014.932389
更新日期:2015-05-01 00:00:00
abstract::The acyclic nucleoside phosphonate analogue PMEA [9-(2-phosphonylmethoxyethyl)adenine] is a broad spectrum antiviral agent effective against DNA viruses and retroviruses. It is particularly active against the human immunodeficiency virus and, like other phosphonylmethoxyalkyl derivatives, it also inhibits HSV-1, TK- H...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689109020370
更新日期:1991-01-01 00:00:00