Abstract：
:The ability of interphotoreceptor retinoid-binding protein (IRBP) to facilitate the incorporation of retinol into retinyl esters by the retinal pigment epithelium (RPE) was examined in toad (Bufo marinus) eyecup preparations devoid of neural retina (RPE-eyecup). Solutions containing purified bovine IRBP and all-trans[3H]retinol were introduced into the vitreal cavity of the RPE-eyecup. After incubation at 22 degrees C, [3H]retinyl ester was extracted from the RPE cells and isolated by high performance liquid chromatography. All-trans[3H]retinyl ester formed in the RPE increased with time of incubation (up to 2 hr) and with concentration of IRBP (up to 10 microM). The increase with IRBP concentration accompanied, and presumably resulted from, an increased transfer of [3H]retinol to the RPE-eyecup. With higher concentration of IRBP (20-30 microM), both the amount of [3H]retinyl ester formed (relative to the peak value at 10 microM IRBP) and the overall molar content of endogenous retinyl ester were reduced. On the other hand, bovine serum albumin at relatively high concentration (90 microM) was less effective than 3 microM IRBP in supporting the formation of [3H]retinyl ester, and it did not reduce the level of native retinyl ester in the RPE. Using 3 microM IRBP, levels of [3H]retinyl ester formed were comparable to or exceeded those obtained with phosphatidyl choline (0.9 mg ml-1) or serum retinol-binding protein (3 microM). The data are consistent with the hypothesized role of IRBP as a carrier of retinol between the retina and RPE in the operation of the visual cycle.
journal_name
Exp Eye Resjournal_title
Experimental eye researchauthors
Okajima TI,Pepperberg DR,Ripps H,Wiggert B,Chader GJdoi
10.1016/s0014-4835(89)80059-4subject
Has Abstractpub_date
1989-10-01 00:00:00pages
629-44issue
4eissn
0014-4835issn
1096-0007journal_volume
49pub_type
杂志文章abstract：:Tears serve as a viable diagnostic fluid with advantages including less invasive sample to collect and less complex to prepare for analysis. Several water-soluble and fat-soluble vitamins were detected and quantified in human tears and compared with blood serum levels. Samples from 15 family pairs, each pair consistin...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2016.12.007
更新日期：2017-02-01 00:00:00
abstract：:Whole mounts of lens epithelia from rats fed on a galactose-rich diet for one, two, three or seven days were examined for morphological alterations. The meridional rows of epithelia from lenses of animals fed on galactose for seven days were found to be grossly disorganized or abnormally elongated. There was some indi...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(84)90183-0
更新日期：1984-06-01 00:00:00
abstract：:Tear samples were collected from 46 healthy volunteers evenly distributed according to sex and age (mean age 43.5 years). Samples were denatured in a Tris-HCl sample buffer containing 2-mercaptoethanol and SDS, and applied to a gradient SDS-polyacrylamide gel for electrophoresis. The proteinaceous material was transfe...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(91)90160-g
更新日期：1991-10-01 00:00:00
abstract：:The purpose of this study was to determine whether trans-scleral pressure affects scleral solute permeability by altering scleral thickness or hydration, and to investigate the sustained release delivery of dexamethasone. Scleral sections from donor human globes were mounted for in vitro flux studies. Scleral thicknes...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(03)00211-2
更新日期：2004-03-01 00:00:00
abstract：:The effect of kainic acid (KA) on rat retinal morphology was investigated with emphasis on the ganglion cell layer. Two hours after intraocular injection of KA, 70% of the neurones in the ganglion cell layer display morphological alterations. These alterations at the ultrastructural level include the absence of identi...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(83)90014-3
更新日期：1983-02-01 00:00:00
abstract：:Anandamide (arachidonylethanolamide) is an endogenous ligand for cannabinoid receptors, and exerts various cannabimimetic activities. Since cannabinoids and anandamide were pharmacologically active with the eye, we examined metabolism of anandamide in a variety of porcine ocular tissues. In the presence of ethanolamin...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0265
更新日期：1997-05-01 00:00:00
abstract：:An interaction between the C-terminus of aquaporin-0 (AQP0) and lens beaded filament protein filensin has been reported previously; however, the region of filensin that is involved in the interaction has not been determined. This study is designed to identify the region of filensin that interacts with AQP0. Chemical c...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2017.02.012
更新日期：2017-06-01 00:00:00
abstract：:Diabetic retinopathy is a sight-threatening complication of diabetes, characterized by loss of retinal pericytes and abnormal angiogenesis. We previously demonstrated that extracellular vesicles (EVs) derived from mesenchymal stem cells cultured in diabetic-like conditions are able to enter the pericytes, causing thei...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2018.07.003
更新日期：2018-11-01 00:00:00
abstract：:Understanding mechanisms of glaucomatous optic nerve damage is essential for developing effective therapies to augment conventional pressure-lowering treatments. This requires that we understand not only the physical forces in play, but the cellular responses that translate these forces into axonal injury. The former ...
journal_title：Experimental eye research
pub_type： 杂志文章,评审
doi：10.1016/j.exer.2010.08.005
更新日期：2011-08-01 00:00:00
abstract：:Familial exudative vitreoretinopathy (FEVR) is a disease exhibits a wide range of clinical signs, ranging mild peripheral retinal vascular anomalies to severe retinal detachments. Individuals with mild FEVR are frequently asymptomatic with good visual function and are often undiagnosed. However, little is known about ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2020.107941
更新日期：2020-03-01 00:00:00
abstract：:Diabetic retinopathy (DR) is the most common cause of blindness in the working age population. Early events of DR are accompanied by neurodegeneration of the inner retina resulting in ganglion cell loss. These findings together with reduced retinal thickness are observed within the first weeks of experimental DR. Besi...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2018.05.013
更新日期：2018-09-01 00:00:00
abstract：:Recently we determined that the Transient Receptor Potential Vanilloid 4 ion channel (TRPV4) has a crucial signaling role in a pathway that regulates various aspects of lens epithelium function. Here, we report on a different TRPV channel, TRPV1, in porcine lens. The presence of TRPV1 in the lens was evident from RT-P...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2018.04.006
更新日期：2018-07-01 00:00:00
abstract：:The chelating agent Na2EDTA was perfused through the anterior chambers of monkeys eyes in an attempt to find a concentration that would cause a rise in outflow facility without harming the cornea or anterior uvea. Na2EDTA (0.5 mM) proved effective in increasing the facility within 60 min. There were marked effects on ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(87)80002-7
更新日期：1987-02-01 00:00:00
abstract：:The purpose of the current study was to localize the lens membrane protein, MIP 26, in nuclear fiber cells from different regions of aged normal and age-related cataractous human lenses. Adult, juvenile, fetal and embryonic nuclear regions in aged normal and age-related nuclear cataractous lenses were morphologically ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1998.0579
更新日期：1999-01-01 00:00:00
abstract：:Tissue kallikrein is a serine proteinase which processes kininogens to release bioactive kinins. Kinins mediate a variety of biological processes through the interaction with kinin receptors. Kinins are involved in the regulation of blood pressure and local blood flow, vasodilation, smooth muscle contraction and relax...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0087
更新日期：1996-07-01 00:00:00
abstract：:Interleukin (IL)-1alpha and beta are important modulators of many functions of corneal epithelial and stromal cells that occur following injury to the cornea, including the influx of bone marrow-derived inflammatory cells into the stroma attracted by chemokines released from the stroma and epithelium. In this study, w...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2008.02.001
更新日期：2008-05-01 00:00:00
abstract：:Dexamethasone is a glucocorticoid that is widely used in the ophthalmic arena. The recent FDA approved dexamethasone implant can provide a three month efficacy but with high rate of drug related cataract and high intraocular pressure (IOP). It seems that higher steroid in aqueous humor and around lens may be associate...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2014.11.002
更新日期：2014-12-01 00:00:00
abstract：:This study tests the hypothesis that choroidal myogenic autoregulation participates in the intraocular pressure (IOP) response to mean arterial pressure (MAP) by minimizing arterial-pressure-dependent changes in choroidal blood volume. To test this hypothesis, the IOP response to MAP was quantified before and after im...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1994.1047
更新日期：1994-05-01 00:00:00
abstract：:In addition to its role as an inhibitor of urokinase plasminogen activator (uPA), plasminogen activator inhibitor-1 (PAI-1) is hypothesized to regulate epithelial cell adhesion and migration. We have previously reported that PAI-1 may be an important regulatory factor of the uPA system in cornea. The purpose of this s...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2004.06.006
更新日期：2005-01-01 00:00:00
abstract：:Corneal endothelial wound healing following scrape injury in the rabbit and cat is characterized by cell spreading and maintenance of a normal endothelial phenotype consisting of apically-localized, circumferential microfilament bands and cell border-associated ZO-1, a tight junction protein and marker for endothelial...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0211
更新日期：1997-02-01 00:00:00
abstract：:The lysosomal proteases cathepsin B and dipeptidyl peptidase II (DPP II) were identified biochemically in the supernatant fraction of rat and guinea-pig lens homogenates, using as substrates CBZ-Arg-Arg-4-methylcoumarin-7-amide (AMC) (5 microM, pH 6.0, 37 degrees C for cathepsin B, and Lys-Ala-AMC or Lys-Pro-AMC (5 mi...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(87)80038-6
更新日期：1987-06-01 00:00:00
abstract：:Myocilin is a 55-57kDa secreted glycoprotein and member of the olfactomedin family, which is mutated in some forms of primary open-angle glaucoma. To assess the effects of elevated amounts of myocilin on aqueous humor outflow dynamics in an in vivo system, transgenic betaB1-crystallin-MYOC mice have been developed tha...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2008.06.006
更新日期：2008-09-01 00:00:00
abstract：:The Royal College of Surgeons (RCS) rat is an established animal model of retinitis pigmentosa, a family of inherited retinal diseases which starts with loss of peripheral vision and progresses to eventual blindness. Blood flow (BF), an important physiological parameter, is intricately coupled to metabolic function un...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2012.06.006
更新日期：2012-08-01 00:00:00
abstract：:Recent evidence suggests that mucosal epithelial cells are capable of actively participating in immune reactions via expression of surface antigens, such as adhesion molecules, and synthesis of cytokines. This appears to be important in the pathophysiology of non-ocular allergic disorders. The objectives of the experi...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1998.0528
更新日期：1998-11-01 00:00:00
abstract：:This study was performed to further characterize expression and function of the Fas/Fas ligand system in the cornea. Specifically, these experiments examined (1) the effect of genetic inactivation of Fas or Fas ligand genes on keratocyte apoptosis in response to corneal epithelial wounding, (2) whether cultured human ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1997.0371
更新日期：1997-10-01 00:00:00
abstract：:The proliferation, migration and transdifferentiation of the remaining lens epithelial cells (LECs) after cataract surgery are a major cause of posterior capsular opacification (PCO). It has previously been reported that salmosin, a novel disintegrin, significantly inhibits solid tumor growth in mice by perturbation o...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.2001.1150
更新日期：2002-05-01 00:00:00
abstract：:Lens epithelial cells undergo a dramatic transformation during the process of differentiation into elongated fiber cells. The membrane-associated actin cytoskeleton is likely to play a critical role in the stabilization and maintenance of the highly elongated fiber cell shape. Tropomodulin is a tropomyosin-binding pro...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0111
更新日期：1996-08-01 00:00:00
abstract：:Transmural electrical properties of the isolated rabbit iris-ciliary body (I-CB) were measured in Ussing-Zerahn-type chambers. Control p.d. across the preparation was -1.2 +/- 0.1 mV, with the ciliary process (aqueous)-side consistently negative with respect to the ciliary body (blood)-side and the short-circuit curre...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(84)90096-4
更新日期：1984-02-01 00:00:00
abstract：:Functional atrophy and accompanying lymphocytic infiltration and destruction of the lacrimal gland (LG) are characteristics of Sjögren's Syndrome (SjS). The male NOD mouse is an experimental model for the autoimmune exocrinopathy that develops in the LG of SjS patients. Acinar cells in LG of male NOD mice aged 3-4 mon...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2009.03.020
更新日期：2009-09-01 00:00:00
abstract：:The aim of the study was to investigate the molecular genetics of uveal melanoma (UM) metastases and correlate it with disease progression. Twelve pathologically confirmed UM metastases from 11 patients were included. Molecular genetic alterations in chromosomes 3 (including the BAP1 region), 8q, 6p, and 1p were inves...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2012.04.010
更新日期：2012-07-01 00:00:00
