Metabolic changes in rabbit lens induced by treatment with dexamethasone.

Abstract:

:Metabolic changes in the rabbit lens have been studied by means of nuclear magnetic resonance spectroscopy. These changes have been induced by prolonged topical treatment with dexamethasone. Our results demonstrate an increase in sorbitol, sorbitol-3-phosphate, fructose-3-phosphate, glycerol-3-phosphate and glucose-6-phosphate levels and a decrease in glutathione sulphate (GSH) and myo-inositol levels, in agreement with what was observed in lenses from streptozocin-diabetic rats before lens opacity. The hyperglycaemia can only partially explain all these observed biochemical variations. The lack of increase in the intermediates of pentose cycle, such as sedoheptulose-7-phosphate, seems to support the hypothesis of an inhibition of glucose-6-phosphate dehydrogenase by dexamethasone treatment. Finally dexamethasone treatment induces a decrease in GSH. The decreasing or the loss of GSH has been suggested as a possible pathogenic mechanism in the cataract formation.

journal_name

Ophthalmic Res

journal_title

Ophthalmic research

authors

Pescosolido N,Miccheli A,Manetti C,Iannetti GD,Feher J,Cavallotti C

doi

10.1159/000055646

subject

Has Abstract

pub_date

2001-03-01 00:00:00

pages

68-74

issue

2

eissn

0030-3747

issn

1423-0259

pii

55646

journal_volume

33

pub_type

杂志文章
  • Ocular volume change per minute with ocular pneumoplethysmography.

    abstract::Ocular pneumoplethysmography was performed before and after 1,737 carotid endarterectomies, 82% of which were performed for carotid lesions of hemodynamic consequence. Preoperative ocular hypoperfusion without ischemia was associated with at least transient postoperative ocular hyperemia. A difference in ocular volume...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000055558

    authors: Gee W,Reed JF 3rd

    更新日期:1999-01-01 00:00:00

  • Polymorphonuclear leukocytes and bacterial growth of the normal and mildly inflamed conjunctiva.

    abstract::We examined 304 conjunctiva in 152 subjects by clinical, cytologic, and bacteriologic methods. Bacteriologic samples were evaluated after a 48-hour incubation. Bacterial growth was found in 8 (20.5%) of 39 patients with clinically normal conjunctiva and no polymorphonuclear leukocytes (PMNs), and in 8 (61.5%) of 13 su...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267086

    authors: Ugomori S,Hayasaka S,Setogawa T

    更新日期:1991-01-01 00:00:00

  • Protective effect of docosahexaenoic acid against retinal ischemic injury: an electroretinographic study.

    abstract:PURPOSE:To determine whether docosahexaenoic acid (DHA) can reduce the retinal damage induced by transient retinal ischemia. METHODS:Retinal ischemia was induced by increasing intraocular pressure (IOP). Retinal circulation was restored by lowering IOP. An intraperitoneal injection of 1,000 mg/kg of DHA-ester (DHA-E) ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000055669

    authors: Miyauchi O,Mizota A,Adachi-Usami E,Nishikawa M

    更新日期:2001-07-01 00:00:00

  • Low temperature and acrylamide inhibit lens opacification caused by calcium.

    abstract::We studied lens opacification of rabbit lenses in culture. Opacification was produced by maintaining rabbit lenses in medium containing calcium concentrations as high as 10 mmol/l and the opacity was measured using LASER spectroscopy. Increasing calcium caused significant opacification in lens cortex while the transpa...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265380

    authors: Clark JI,Danford ME

    更新日期:1985-01-01 00:00:00

  • Effect of allogeneic limbal mesenchymal stem cell therapy in corneal healing: role of administration route.

    abstract:AIMS:To investigate whether allogeneic limbal mesenchymal stem cell (LMSC) therapy affects corneal healing after a severe chemical burn and whether the route of administration of LMSCs differs in its therapeutic effect in this respect. METHODS:A total of 60 Sprague-Dawley rats with clinically proven alkali injury were...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000368659

    authors: Acar U,Pinarli FA,Acar DE,Beyazyildiz E,Sobaci G,Ozgermen BB,Sonmez AA,Delibasi T

    更新日期:2015-01-01 00:00:00

  • Is the insertional anatomy of rectus extraocular muscles binocularly symmetrical?

    abstract:PURPOSE:This study was performed to examine the location, width, and insertional shape of rectus extraocular muscles (EOMs), and to elucidate the symmetry of the insertional anatomy of rectus EOMs in the left and right eyes. METHODS:EOMs were dissected from their origin to the insertion point in 100 intact orbits of 5...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000272021

    authors: Cho HK,Shin SY

    更新日期:2010-01-01 00:00:00

  • Targeting of integrin-linked kinase with a small interfering RNA inhibits endothelial cell migration, proliferation and tube formation in vitro.

    abstract:PURPOSE:To investigate the role of integrin-linked kinase (ILK) in endothelial cell migration, proliferation and tube formation in vitro. MATERIALS AND METHODS:Cultured RF/6A cells were knocked down for ILK using small interfering RNA (siRNA). Cellular ILK expression was quantified by real-time quantitative PCR and We...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000232971

    authors: Guo L,Yu W,Li X,Zhao G,He P

    更新日期:2009-01-01 00:00:00

  • Comparison of electro-oculogram recording methods.

    abstract::The purpose of this study was to compare the variability of the amplitude ratios and latencies of the electro-oculogram (EOG) light peak (LP) in three different recording conditions: Arden ratio (dark trough (DT): 12 min), modified Arden ratio (DT: 15 min) and light peak/dark baseline ratio (LP/BL: 35 min of dark adap...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267320

    authors: Lessel MR,Thaler A,Scheiber V,Heilig P

    更新日期:1993-01-01 00:00:00

  • DNA Aptamer Raised against Advanced Glycation End Products Prevents Abnormalities in Electroretinograms of Experimental Diabetic Retinopathy.

    abstract:PURPOSE:Abnormalities in electroretinograms (ERG), such as reduced amplitudes and delayed implicit times of a- and b-wave and oscillatory potentials (OPs), are one of the earliest features of diabetic retinopathy prior to obvious vascular changes in diabetic retinas. We have previously shown that serum levels of advanc...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000440768

    authors: Maeda S,Matsui T,Ojima A,Suematsu M,Kaseda K,Higashimoto Y,Yamakawa R,Yamagishi S

    更新日期:2015-01-01 00:00:00

  • Equine recurrent uveitis--a spontaneous horse model of uveitis.

    abstract::Equine recurrent uveitis (ERU) is an autoimmune disease that occurs with a high prevalence (10%) in horses. ERU represents the only reliable spontaneous model for human autoimmune uveitis. We already identified and characterized novel autoantigens (malate dehydrogenase, recoverin, CRALBP) by analyzing the autoantibody...

    journal_title:Ophthalmic research

    pub_type: 杂志文章,评审

    doi:10.1159/000119867

    authors: Deeg CA,Hauck SM,Amann B,Pompetzki D,Altmann F,Raith A,Schmalzl T,Stangassinger M,Ueffing M

    更新日期:2008-01-01 00:00:00

  • Reproducibility of Microperimeter 3 (MP-3) Microperimetry in Open-Angle Glaucoma Patients.

    abstract:PURPOSE:Primary open-angle glaucoma (POAG) is a chronic progressive optic neuropathy, leading to degeneration of retinal ganglion cells and characteristic morphological changes at the optic disc. In advanced stages of the disease, functional tests, such as standard automated perimetry (SAP), are the main diagnostic too...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000501693

    authors: Leisser C,Palkovits S,Hirnschall N,Georgiev S,Findl O

    更新日期:2020-01-01 00:00:00

  • Down-regulation of MHC class II expression on bovine retinal pigment epithelial cells by cytokines.

    abstract::To determine the effect of interleukin-10 (IL-10) and transforming growth factor-beta (TGF-beta) on the down-regulation of MHC class II antigens, bovine retinal pigment epithelial (RPE) cells were incubated with interferon-gamma (IFN-gamma) in different concentrations. Subsequently, the IFN-gamma pretreated RPE cells ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000055545

    authors: Enzmann V,Stadler M,Wiedemann P,Kohen L

    更新日期:1999-01-01 00:00:00

  • Osthole: A Traditional Chinese Medicine for Ocular Anti-Angiogenic Therapy.

    abstract:PURPOSE:Osthole is an agent isolated from Cnidium monnieri (L.) Cusson and has been used to treat several disorders. Corneal neovascularization is a sight-threatening condition associated with several inflammatory or infectious ocular disorders. In this study, we investigated the anti-angiogenic effects of osthole on c...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000505976

    authors: Zhang QY,Tao SY,Lu C,Li JJ,Li XM,Jiang Q,Yan B

    更新日期:2020-01-01 00:00:00

  • Binding of fluorescein and carboxyfluorescein by normal and glycosylated human serum proteins.

    abstract::The binding of fluorescein and 6-carboxyfluorescein by normal, diabetic and in vitro glycosylated human serum proteins was analyzed by absorption and fluorescence spectroscopy, gel filtration and equilibrium dialysis. The absorption spectra of bound fluorochromes showed red shifts and hypochromic changes, and fluoroch...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265219

    authors: Rockey JH,Li W

    更新日期:1982-01-01 00:00:00

  • Accuracy of constant C for ray tracing-assisted intraocular lens power calculation in normal ocular axial eyes.

    abstract:OBJECTIVE:To evaluate the effect of C constant for ray tracing-assisted intraocular lens (IOL) power calculation in the patients with different refractive power, we compared the refractive outcome of ray-tracing method based on C constant and conventional IOL calculation formula. METHODS:215 eyes which underwent phaco...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000507963

    authors: Chang P,Zhang F,Wang J,Zhao Y

    更新日期:2020-04-20 00:00:00

  • Comparison between Topcon SL-45 and SL-45B with different correction methods for factors influencing Scheimpflug examination.

    abstract::Topcon Tokyo manufactured the first series of SL-45 in 1980 and a second in 1982/83, which were completed in Bonn with all technical improvements developed so far. In 1987, the SL-45B was manufactured which included all previously added improvements. To compare both camera types, we carried out a test with 10 voluntee...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267057

    authors: Laser H,Berndt W,Leyendecker M,Kojima M,Hockwin O,Cheyne A

    更新日期:1990-01-01 00:00:00

  • Age-Related Dry Eye Lactoferrin and Lactobionic Acid.

    abstract::Dry eye is the most prominent pathology among those involving the ocular surface: a decrease of the aqueous (less frequent) or the lipid (more frequent) component of the tear film is the cause of the diminished stability of tears that is observed in this pathology. Dry eye shows a clear distribution linked to both sex...

    journal_title:Ophthalmic research

    pub_type: 杂志文章,评审

    doi:10.1159/000489093

    authors: Rusciano D,Pezzino S,Olivieri M,Cristaldi M,Gagliano C,Lupo G,Anfuso CD

    更新日期:2018-01-01 00:00:00

  • Clinical study of therapeutic ocular surface medium for persistent epithelial defect.

    abstract:PURPOSE:To investigate therapeutic ocular surface medium (TOSM), a potential physiological tear replacement therapy, for persistent epithelial defect (PED). METHODS:11 eyes of 10 patients with PED for ≥ 2 weeks without improvement despite conventional treatment were enrolled in a prospective pilot study of TOSM over 1...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000355065

    authors: Watson SL,Geerling G,Dart JK

    更新日期:2014-01-01 00:00:00

  • Ocular melanogenesis: the role of antioxidants.

    abstract::Given the propensity of a large number of melanogenic pathways that can be modulated by cellular redox status, a causal role of the deficiency of ocular pigments such as melanin in the pathogenesis of age-related macular degeneration and evidence that melanin production does occur in the adult eye, it seems not improb...

    journal_title:Ophthalmic research

    pub_type: 杂志文章,评审

    doi:10.1159/000081632

    authors: Sarangarajan R,Apte SP

    更新日期:2004-11-01 00:00:00

  • TRPML1 inhibited photoreceptor apoptosis and protected the retina by activation of autophagy in experimental retinal detachment.

    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

    authors: Yan Y,Wang Y,Ding J,Lu L,Ke G,Dong K

    更新日期:2020-10-07 00:00:00

  • Effects of a nitric oxide synthase inhibitor on prostaglandin-induced aqueous flare elevation in pigmented rabbits.

    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

    authors: Hiraki S,Zhang XY,Hayasaka S

    更新日期:1996-01-01 00:00:00

  • In vitro prevention of vaccinia and herpesvirus infection spread in explanted human corneas by N-chlorotaurine.

    abstract:OBJECTIVE:Weak oxidants produced by activated human leukocytes are proven antimicrobial substances. We tested whether N-chlorotaurine (NCT, taurine chloramine), the chlorinated metabolite of the amino acid taurine, in addition to direct virucidal effects on viral suspensions, has the capability to prevent cell-to-cell ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000253846

    authors: Huemer HP,Nagl M,Irschick EU

    更新日期:2010-01-01 00:00:00

  • Calf lens alpha-crystallin, a molecular chaperone, builds stable complexes with beta s- and gamma-crystallins.

    abstract::Calf water-soluble (WS) crystallins consist of high-molecular weight (HM), alpha-, beta H-, beta L-, beta s- and gamma-crystallins. alpha-Crystallin as a molecular chaperone forms a structure with a central hole, known as Carver's model. The only crystallins fitting into this central cavity are beta s- and gamma-cryst...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267939

    authors: Bours J

    更新日期:1996-01-01 00:00:00

  • In vivo color analysis of human crystalline lenses.

    abstract::Indirect measurement in vivo of nuclear color of 64 cataractous eyes was made using a method of image analysis of photographed lenses developed by the authors. The grade of yellow of lens color was characterized by its dominant wavelength and excitation purity in the CIE chromaticity diagram. The differences were smal...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265345

    authors: Sasaki K,Hiiragi M,Sakamoto Y,Shibata T

    更新日期:1985-01-01 00:00:00

  • Biological compatibility of polymethyl methacrylate, hydrophilic acrylic and hydrophobic acrylic intraocular lenses.

    abstract:PURPOSE:Extensive clinical investigations of the biocompatibility of different intraocular lenses (IOLs) have been made in an effort to optimize the outcome of modern cataract surgery. The aim of this study was to add animal eye experimental implantation data regarding cellular reaction on the anterior surface of IOLs....

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000087100

    authors: Barbour W,Saika S,Miyamoto T,Ohnishi Y

    更新日期:2005-09-01 00:00:00

  • Effects of antiglaucoma drugs on the blood flow in rabbit eyes.

    abstract::Although it is essential that intraocular pressure (IOP) be reduced in glaucoma treatment, it is also vitally important to provide sufficient blood flow to eye tissues so that healthy visual field is maintained. It is possible for an agent to reduce IOP and blood supply to the eye. In that case, glaucoma appears to be...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265445

    authors: Chiou GC,Yan HY

    更新日期:1986-01-01 00:00:00

  • Distribution of glycosyltransferase in bovine eyes.

    abstract::The activities of sialyl-, fucosyl- and galactosyltransferase were measured in membrane preparations from bovine eyes. Radioactive sugars from CMP-N-neuraminic acid, GDP-fucose and UDP-galactose were incorporated into the endogenous and exogenous acceptors. The enzymatic activities of all three glycosyltransferases we...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267045

    authors: Unoki K,Uehara F,Muramatsu T

    更新日期:1990-01-01 00:00:00

  • Acute corneal epithelial change after instillation of benzalkonium chloride evaluated using a newly developed in vivo corneal transepithelial electric resistance measurement method.

    abstract:OBJECTIVE:Acute corneal permeability change after instillation of benzalkonium chloride (BAC) was evaluated using a newly developed in vivo corneal transepithelial electric resistance (TER) measurement method. METHOD:Corneal TER was measured by Ag/AgCl electrodes placed in the anterior aqueous chamber and on the corne...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000109986

    authors: Uematsu M,Kumagami T,Kusano M,Yamada K,Mishima K,Fujimura K,Sasaki H,Kitaoka T

    更新日期:2007-01-01 00:00:00

  • Shared decision-making, control preferences and psychological well-being in patients with RPE65 deficiency awaiting experimental gene therapy.

    abstract:PURPOSE:Retinal gene therapy trials are currently ongoing in a small number of inherited retinal disorders and this number is expected to rise significantly. The aim of this study was to analyze the psychological aspects of patients with RPE65 deficiency awaiting potential enrollment in gene therapy trials. METHODS:Fi...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000435887

    authors: Nelles M,Stieger K,Preising MN,Kruse J,Lorenz B

    更新日期:2015-01-01 00:00:00

  • Ocular toxoplasmosis: recent aspects of pathophysiology and clinical implications.

    abstract::Toxoplasma gondii is an extremely successful opportunistic parasite which infects approximately one third of the human population worldwide. The impact of this parasite on human health becomes particularly manifest in congenital damage with infection and subsequent inflammation of neuronal tissues including the retina...

    journal_title:Ophthalmic research

    pub_type: 杂志文章,评审

    doi:10.1159/000363141

    authors: Pleyer U,Schlüter D,Mänz M

    更新日期:2014-01-01 00:00:00