Abstract:
PURPOSE:Phagocytosis of rod outer segments (ROS) is an important function of retinal pigment epithelial (RPE) cells. Since the details of the process are not fully known, we studied effects of cytokines produced by RPE and photoreceptor cells on phagocytosis of ROS by rat RPE cells. METHODS:RPE cells were isolated and cultivated from two strains of rats: Sprague-Dawley (SD) rats with normal phagocytosis and Royal College of Surgeons (RCS) rats, which have genetic deficiencies in ROS phagocytosis. A double immunofluorescence staining technique was used to study the effects in vitro of several cytokines on phagocytosis of ROS. RESULTS:We found that transforming growth factor beta-1 (TGF-beta 1) had dose-dependent effects on RPE cells of both strains of rat: at a concentration of 10 ng/ml, TGF-beta 1 significantly (p < 0.01) reduced total ROS (to 74% of control in SD rats and to 51% of control in RCS rats), reduced bound ROS (to 56% of control in SD rats and to 48% in RCS rats), and increased the ratio of ingested ROS to total ROS (to 140% in SD rats but not significantly in RCS rats). Treatment of medium with anti-TGF-beta 1 antibody before incubation of RPE cells of SD rats with TGF-beta 1 decreased the magnitude of these effects. The cytokine acidic fibroblast growth factor (aFGF, 10 ng/ml) affected RPE cells of SD rats only, decreasing ROS ingested to 56% of control and the ratio of ingested ROS to total ROS to 64% of control. We also examined effects of basic fibroblast growth factor and insulin-like growth factor. None of the cytokines tested increased ingestion of ROS by RPE cells of RCS rats. CONCLUSIONS:Our results suggest that TGF-beta 1 and aFGF have roles in regulating ROS phagocytosis by normal and dystrophic RPE cells in the rat.
journal_name
Curr Eye Resjournal_title
Current eye researchauthors
Hayashi A,Nakae K,Naka H,Ohji M,Tano Ydoi
10.3109/02713689609000760subject
Has Abstractpub_date
1996-05-01 00:00:00pages
487-99issue
5eissn
0271-3683issn
1460-2202journal_volume
15pub_type
杂志文章abstract::The clinical impression that pre-existing diabetes exacerbates radiation injury to the retinal vasculature was studied in STZ diabetic rats. Half of 2 groups of streptozotocin (STZ)-induced diabetic rats and 1 group of normal animals had their right eyes irradiated with 1000 cGy of 90 KVP x-rays. The prevalence of ace...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689309029227
更新日期:1993-11-01 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::The maximal velocity (Vmax) and the apparent dissociation constant (K0.5) of Na+K+-ATPase have each been estimated with respect to sodium and potassium ion activation. These estimations were made from the enzymatic activity of plasma membrane preparations derived from bovine corneal endothelial cells. The determinatio...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688709034834
更新日期:1987-05-01 00:00:00
abstract::A model system for retinal adhesion, consisting of interacting bovine pigment, epithelium (PE) cells and photoreceptor outer segments, was utilized to examine any adhesive role of the interphotoreceptor matrix. PE cells were dissociated by trypsin treatment of the eyecup, and were allowed to replenish their surface pr...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688109001859
更新日期:1981-01-01 00:00:00
abstract:PURPOSE:The aim of this study was to establish the antioxidant status and oxidative stress in patients with primary open-angle glaucoma (POAG) and pseudoexfoliative glaucoma (PEG). METHODS:Serum levels of total antioxidant capacity (TAC) and superoxide dismutase (SOD) as indicators of antioxidant status; and total oxi...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2011.584370
更新日期:2011-08-01 00:00:00
abstract:PURPOSE:Mechanical stimulation induces intercellular Ca(2 +) waves in the corneal endothelium. The extent of the wave propagation is dependent on the activity of gap junctions, hemichannels, and ectonucleotidases. To further establish the use of a cell culture model to investigate intercellular communication, in this s...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713680902913022
更新日期:2009-06-01 00:00:00
abstract::It has been suggested that the provision of HLA matched tissue for corneal transplantation would be beneficial for graft survival especially in high risk patients. In this study we report the application of a polymerase chain reaction (PCR) based tissue typing procedure to type cadaveric donor material. Using beta-glo...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689209001798
更新日期:1992-05-01 00:00:00
abstract:PURPOSE:To investigate the spectral content of intraocular pressure (IOP) pulse wave by advanced spectral signal processing of continuous IOP readings obtained by dynamic contour tonometry. PATIENTS AND METHODS:A non-interventional case-control study included 20 healthy subjects, 20 previously untreated primary open a...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2012.700755
更新日期:2012-11-01 00:00:00
abstract::Purified Pseudomonas aeruginosa elastase cleaved a 65 kDa gelatinase [inactive proenzyme form of matrix metalloproteinase (MMP-2)] from human corneal fibroblasts into a biologically active fragment with an approximate molecular mass of 58 kDa. However, purified pseudomonal alkaline protease did not cleave MMP-2 apprec...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689209015082
更新日期:1992-11-01 00:00:00
abstract:PURPOSE:The aim of the present study was to evaluate the efficacy of the inverted internal limiting membrane (ILM) flap technique that involved the use of a perfluorocarbon liquid (PFCL) bubble for the selective prevention of indocyanine green (ICG) staining of the parts of the inverted flap in contact with the retinal...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2018.1524014
更新日期:2019-01-01 00:00:00
abstract:SIGNIFICANCE:Adopting a risk stratification system and appropriate listing of cases reduces the rates of intraoperative complications during phacoemulsification. Such listing would allow both safe surgery and enhance training, by ensuring an appropriately experienced surgeon is available to operate on a case or supervi...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2020.1801759
更新日期:2020-07-30 00:00:00
abstract:PURPOSE:There is limited information on region-specific gene expression in the human corneal stroma. In this study, we aimed to investigate the expression profile of the extracellular matrix and adhesion molecules in the normal corneal stroma using laser capture microdissection (LCM) and molecular techniques. METHODS:...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2016.1200099
更新日期:2017-04-01 00:00:00
abstract::A prototype automated flicker perimeter was used to investigate flicker luminance thresholds in glaucoma patients (n = 11), ocular hypertensives (high risk n = 10, low and intermediate risk n = 21) and normal controls (n = 10). Differential light sensitivity was measured for one eye of each subject using a flickering ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689409047005
更新日期:1994-10-01 00:00:00
abstract:PURPOSE:To compare the antiviral effect of a peptide derived from human apolipoprotein E (1% apoEdp) with 1% trifluorothymidine against HSV-1 thymidine kinase (TK)-positive (HSV-1 McKrae) and with 3% foscarnet against HSV-1 TK-negative (KOS background) in the rabbit eye model of acute HSV-1 epithelial keratitis. MATER...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713680802647662
更新日期:2009-02-01 00:00:00
abstract::The present study was aimed to demonstrate that cytochrome P-450 was induced by drug administration in particular tissues in the eye. Phenobarbital was used as an inducer. We showed immunohistochemically that cytochrome P-450 was induced in the cornea, conjunctiva and ciliary epithelium of rabbits after four days of i...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688709034854
更新日期:1987-07-01 00:00:00
abstract:AIM:To compare patient satisfaction and experience after external dacryocystorhinostomy (EX-DCR) versus transcanalicular DCR (TC-DCR) with a diode laser and to evaluate the change in quality of life following simultaneous bilateral DCR. METHODS:Prospective evaluation of 38 eyes of 19 patients with bilateral nasolacrim...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2012.658488
更新日期:2012-04-01 00:00:00
abstract:PURPOSE:Several previous studies have shown that glycoconjugates of extracellular matrix, cell membrane and nucleus play an important role in the mediation of cell proliferation, migration and differentiation. Lens epithelial cells and lens fiber cells show regional differences with regard to these parameters. If glyco...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.16.6.527.5083
更新日期:1997-06-01 00:00:00
abstract:PURPOSE:To investigate the effects of rapamycin on the TNF-α-induced secretion of interleukin-6 (IL-6) and IL-8 in orbital fibroblasts and its possible mechanism. MATERIALS AND METHODS:Orbital fibroblasts were obtained from patients with thyroid-associated ophthalmopathy. IL-6 and IL-8 levels were measured by enzyme-l...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2012.750368
更新日期:2013-06-01 00:00:00
abstract::Thrombospondins are a family of large multi-domain glycoproteins described as matricelluar proteins based on their ability to interact with a broad range of receptors, matrix molecules, growth factors or proteases, and to modulate array of cellular functions including intracellular signaling, proliferation and migrati...
journal_title:Current eye research
pub_type: 杂志文章,评审
doi:10.3109/02713683.2013.877936
更新日期:2014-08-01 00:00:00
abstract::A major glycoprotein of relative molecular weight of 130,000 daltons of chick lens cell membranes was identified by Concanavalin-A staining and enriched for by Con A-Sepharose chromatography. Using both Con A binding and immunological analyses with a specific polyclonal antibody, the glycoprotein was detected in chick...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688608995176
更新日期:1986-12-01 00:00:00
abstract::Purpose/Aim: To determine the associations among socioeconomic factors, delay in management, and high-risk histopathologic features in eyes primarily enucleated for retinoblastoma. Materials and Methods: A single-site survey was conducted from January 2016 through January 2018. Eyes primarily enucleated for unilateral...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2019.1623898
更新日期:2019-10-01 00:00:00
abstract::Using experimental model of uveitis, the inflammation-associated chemiluminescence was measured by luminol amplification method. The induction of uveitis in Lewis rats was carried out by immunizing bovine S-antigen in complete Freund's adjuvant on hind foot-pad. The chemiluminescence activity from six sets of retina a...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689109020326
更新日期:1991-10-01 00:00:00
abstract::Samples of aqueous humor from rabbits and humans were examined for growth effects on subconfluent monolayer fibroblast cultures from ocular and extraocular tissues. At a concentration of 20% aqueous by medium volume, both homologous and heterologous aqueous stimulated DNA synthesis in fibroblasts from both species. Th...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688209020019
更新日期:1982-01-01 00:00:00
abstract:PURPOSE:Pseudoexfoliation (PXF) is a microfibrillopathy involving disordered elastogenesis. Abnormal extracellular matrix (ECM) production underlies the pathophysiology of PXF. The enzyme Lysyl oxidase (LOX) and its isoforms are known to cross-link the elastin and collagen. Though the etiopathogensis of PXF is not well...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2015.1125505
更新日期:2016-10-01 00:00:00
abstract:PURPOSE:Diabetic maculopathy (DM) treated with photocoagulation may subsequently progress to proliferative diabetic retinopathy (PDR). However, there is insufficient knowledge about the incidence and risk factors for the development of PDR in patients previously treated for DM. MATERIALS AND METHODS:Survival data was ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2020.1712729
更新日期:2020-08-01 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::The compound 2-mercaptoacetyl-L-phenylalanyl-L-leucine (HS-Ac-Phe-Leu) is a potent and specific inhibitor of Pseudomonas aeruginosa elastase, effectively inhibiting the elastase activity both, in vitro and within the rabbit cornea. This inhibitor was therefore evaluated as an adjunct to antibiotics (gentamicin) treatm...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688409003066
更新日期:1984-04-01 00:00:00
abstract:PURPOSE:To study the efficacy and outcomes of short-term postoperative vitreoretinal tamponade with perfluorocarbon heavy liquid in patients with giant retinal tear. MATERIALS AND METHODS:The study group consisted of 13 consecutive patients (13 eyes) who presented with giant retinal tear at a tertiary medical center i...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2016.1266664
更新日期:2017-07-01 00:00:00
abstract::Human endothelial morphologic changes were quantitated by specular microscopy and computer-assisted morphometry to establish normal baselines of various morphologic parameters. Cellular polymegethism and cellular pleomorphism increases with age, and normal baseline parameters are detailed. Furthermore, no significant ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688509017661
更新日期:1985-06-01 00:00:00
abstract:PURPOSE:Compare the efficacy of treatment of pneumococcal keratitis with cholesterol, moxifloxacin, or a mixture of the two (moxifloxacin/cholesterol). MATERIALS AND METHODS:New Zealand white rabbits were injected intrastromally with 10(6) colony-forming units (CFU) of a clinical keratitis strain of Streptococcus pneu...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2010.512114
更新日期:2010-12-01 00:00:00