Abstract:
:Rabbits have circadian rhythms of intraocular pressure (IOP) and aqueous flow. The dark phase increases of IOP and flow are associated with increased aqueous cyclic AMP. If the daily rhythm of aqueous cyclic AMP reflects changes of tissue levels of cyclic AMP which mediate one of the mechanisms which control the rhythms of IOP and aqueous flow, then it must be a circadian rhythm as are the rhythms of IOP and flow. A recent report showed no change in aqueous cyclic AMP from 2 hrs before to 2 hrs after the beginning of subjective dark in animals housed in constant dark. Because the increase of intraocular pressure at the same times did persist in constant dark, the authors concluded that a significant portion of the circadian rhythm of IOP is unrelated to cyclic AMP mediated ocular mechanisms. However, if an inhibitor of cyclic nucleotide phosphodiesterase is added to aqueous samples after harvesting by paracentesis, it is possible to show that most of the increase of aqueous cyclic AMP from mid-light phase to mid-dark phase persists in constant dark and is therefore likely to reflect a circadian rhythm of tissue cyclic AMP.
journal_name
Curr Eye Resjournal_title
Current eye researchauthors
Kiuchi Y,Gregory DSdoi
10.3109/02713689209033491subject
Has Abstractpub_date
1992-09-01 00:00:00pages
935-8issue
9eissn
0271-3683issn
1460-2202journal_volume
11pub_type
杂志文章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::The distribution of a steroid antagonist, RU486, that is known to reduce rabbit intraocular pressure has been examined in the eye. On an equal tissue weight basis, the corneal epithelium is the site of maximal absorption followed by conjunctival tissues (bulbar and palpebral) and the rest of the cornea. Aqueous humor ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688609015138
更新日期:1986-09-01 00:00:00
abstract::Glaucoma is increasingly recognized as a neurodegenerative disorder, characterized by the accelerated loss of retinal ganglion cells (RGCs) and their axons. Impaired axonal transport has been implicated as a pathogenic mechanism in a number of neurodegenerative diseases, including glaucoma. The long RGC axon, with its...
journal_title:Current eye research
pub_type: 杂志文章,评审
doi:10.3109/02713683.2015.1037924
更新日期:2016-01-01 00:00:00
abstract:PURPOSE:To examine the effect of elevated extracellular glucose, thus simulating diabetes, on migration, adhesion and proliferation of SV40 transformed human corneal epithelial (HCE) cells. METHODS:HCE cells were maintained in serum supplemented media containing 5 mM, 17.5 mM or 38 mM D-glucose. Cell migration was det...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.17.9.924.5133
更新日期:1998-09-01 00:00:00
abstract:PURPOSE:To determine the effect of prolonged exposure to high glucose on cellular behavior of normal human corneal epithelial cells (HCEC). METHODS:HCEC were cultured in medium under normal or high glucose conditions for 14 days. Proliferation was evaluated by direct cell counting and [(3)H]thymidine incorporation. Ce...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.27.4.197.16598
更新日期:2003-10-01 00:00:00
abstract::The effects of transforming growth factor-beta (TGF beta) and epidermal growth factor (EGF) on the synthesis of collagen and fibronectin, and on the proliferation of human corneal stromal fibroblasts in vitro, were evaluated. Human corneal stromal fibroblasts in culture were incubated for 48 hours with TGF beta or EGF...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689308995765
更新日期:1993-08-01 00:00:00
abstract:PURPOSE:Form-deprivation myopia (FDM) is believed to result principally from actions of substances that modulate information processing in the retina. We used a chick model to investigate what role nitric oxide (NO), a gaseous neuromodulator, might play in the development of FDM. METHODS:We injected different concentr...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.16.10.992.9021
更新日期:1997-10-01 00:00:00
abstract:PURPOSE:To investigate the effect of topical iganidipine, a new dihydropyridine derivative calcium channel blocker, on impairment of the ocular circulation caused by endothelin-1 (ET-1), we examined modification of the effect of ET-1 on visual-evoked potential (VEP) in albino rabbits. METHODS:To clarify whether VEP co...
journal_title:Current eye research
pub_type: 杂志文章
doi:
更新日期:2000-02-01 00:00:00
abstract:PURPOSE:To study retinal neovascularization (RNV) inhibition by intravitreal injections (IVs) of ranibizumab, sTie2 fusion protein (sTie2-Fc), and a combined therapy in an oxygen-induced retinopathy (OIR) model. MATERIALS AND METHODS:An OIR mouse model was used to simulate RNV in retinopathy of prematurity (ROP); and ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2018.1484144
更新日期:2018-09-01 00:00:00
abstract::Calmodulin has been shown to perform several important functions in the lens including regulation of the plasma membrane Ca(2+)-ATPase. This study investigated the effects of a variety of different CaM antagonists on rat lens membrane potential, membrane resistance, intracellular Na+ and Ca2+ content and transparency,...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689408995780
更新日期:1994-03-01 00:00:00
abstract::Antifibrosis agents have improved the success of glaucoma filtration surgery, although undesired side effects are not readily reversible and may present a major limitation in the use of these agents. Our purpose was to study the efficacy of cytosine arabinoside (Ara-C) as an adjunctive antimetabolite in glaucoma surge...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689409025140
更新日期:1994-11-01 00:00:00
abstract:PURPOSE:To investigate the efficacy of intravitreal piperacillin/tazobactam (250 microg/0.1 ml) in the treatment of experimental Pseudomonas aeruginosa endophthalmitis in rabbits. MATERIALS AND METHODS:Twenty New Zealand White albino rabbits were used in this study. The rabbits were divided into two groups (10 rabbits...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713680490894180
更新日期:2005-01-01 00:00:00
abstract:PURPOSE:To characterize the possible cytotoxic effects of oxysterols (7beta-hydroxycholesterol (7beta-OH), 25-hydroxycholesterol (25-OH)) in human retinal pigment epithelial cells (ARPE-19) and to detail the relationships between some of these effects. METHODS:ARPE-19 cells were treated with 7beta-OH and 25-OH. Cell v...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713680802337397
更新日期:2008-09-01 00:00:00
abstract::This study asks whether retinal adhesiveness is affected by cytochalasin D, a drug that is known to alter the apical morphology of the retinal pigment epithelium (RPE). Cytochalasin D was injected intravitreally in Dutch rabbits and retinal adhesiveness measured 0.5 to 72 h later by two methods: in vitro peeling of th...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689508995817
更新日期:1995-12-01 00:00:00
abstract:PURPOSE:This study was carried out in order to determine the most potent and novel uveitopathogenic sites of recoverin using synthetic peptides. METHODS:Several synthetic peptides containing the recoverin sequence plus adjuvants were injected into Lewis rats, and the uveitopathogenic sequence was defined, clinically, ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.22.4.304.5503
更新日期:2001-04-01 00:00:00
abstract:PURPOSE:To examine the effects of external modulation of epithelial-mesenchymal interaction on conjunctival epithelial cell differentiation characteristics. METHODS:Keratin K4 and laminin beta2 chain protein localization was examined in an organotypic model which facilitates the comparison of differentiation character...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.18.1.28.5394
更新日期:1999-01-01 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 evaluate the toxicity of indocyanine green (ICG) in combination with light. METHODS:Human retinal pigment epithelial cells (ARPE-19) and rat neurosensory retinal cells (R28) were treated with four different concentrations of ICG in combination with light exposure. Cell viability, mitochondrial function, and...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713680590959312
更新日期:2005-06-01 00:00:00
abstract:PURPOSE:The purpose was to investigate the effect of the superoxide dismutase mimetic tempol on decreases in retinal blood flow that are found in diabetic mice. MATERIALS AND METHODS:Streptozotocin (STZ) was injected into male C57BL/6 mice to induce hyperglycemia. One week following the STZ injection, subsets of the m...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2011.556300
更新日期:2011-05-01 00:00:00
abstract:PURPOSE:To measure the cell size and cell density in five layers of the central cornea in the widely used inbred C57BL/6 mouse strain using in vivo three-dimensional (3D) two-photon (2PH) imaging. METHODS:Corneas were scanned using a 2PH laser scanning fluorescence microscope after staining with plasma membrane stain ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2015.1031253
更新日期:2016-04-01 00:00:00
abstract::From knowledge of the optical parameters of experimental animal eyes and radiometric parameters of the light source, it is possible to provide accurate retinal irradiances (dose rates). Examples are given for the rat, cat, monkey and other animals of interest. Fluorescent lamps and incandescent lamp radiances are prov...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688408997199
更新日期:1984-01-01 00:00:00
abstract::The basement membrane of the crystalline lens of the diabetic rat was found to have a similar elasticity modulus at high stress to that of normal membrane. However, at low stress and extension Young's modulus of elasticity was 0.36 (Mean) +/- 0.15 (SD) X 10(6) Nm-2 and about 30 per cent lower than that of normal membr...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688108998358
更新日期:1981-01-01 00:00:00
abstract::The distribution of vasoactive intestinal polypeptide (VIP)- and neurotensin (NT)-like immunoreactivities in the chicken retina was investigated by immunohistochemistry. VIP- and NT-positive cells were found throughout the chicken retina. The majority of them were located in the proximal portion of the inner nuclear l...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688109001736
更新日期:1981-01-01 00:00:00
abstract::A model for endothelial transport is updated to include recent evidence. We discuss electrolyte movements based on a Na+-K+ ATPase, a Na+-H+ exchanger, a Na+-HCO3 coupler, a Cl- -HCO-3 exchanger, a K+-Cl-coupler, and K+ and anion channels. We discuss near-isotonic transport of fluid on the basis of recent findings of ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713688509025148
更新日期:1985-04-01 00:00:00
abstract::An experimental model of optic nerve ischemia was designed in the rabbit to determine early biochemical alterations, i.e.--changes of high energy phosphate metabolites (ATP and phosphocreatine)--in occlusive and peri-occlusive areas. Vascular occlusion provoked a rapid fall of ATP and phosphocreatine in the optic nerv...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689209001779
更新日期:1992-03-01 00:00:00
abstract::Interleukin 4 (IL-4) may play a role in the development of allergic disease. We questioned whether IL-4 related phenomenon occurred on the surface of the conjunctiva during allergic conjunctivitis. Ten patients with cedar pollen-allergic conjunctivitis and 10 patients with postsurgical conjunctivitis were enrolled in ...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689608997415
更新日期:1996-02-01 00:00:00
abstract::Prorenin (PR) was localized by electron microscopic (EM) immunostaining of cryo-ultramicrotomy sections of human ciliary body and correlated with light microscopic immunostaining. Both layers of the ciliary epithelium contained the prohormone. However, density was much higher in the adjacent extracellular spaces, part...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713689309020401
更新日期:1993-10-01 00:00:00
abstract:PURPOSE:This study identifies the prevalence and risk factors of sensorineural hearing loss and primary open-angle glaucoma (POAG). MATERIALS AND METHODS:Patients aged 19 years or older who had undergone both ophthalmologic examination and audiometry as part of the Korea National Health and Nutrition Examination Surve...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1080/02713683.2020.1712424
更新日期:2020-08-01 00:00:00
abstract:PURPOSE:To investigate whether retinal impairment was affected by age of rats in acute glaucoma model. METHODS:Young adult and aged rats were randomly divided into normal control, 45 mmHg, 60 mmHg and 90 mmHg groups. Intraocular pressures (IOP) of rats were acutely elevated to 45 mmHg, 60 mmHg and 90 mmHg, respectivel...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.3109/02713683.2014.922194
更新日期:2015-03-01 00:00:00
abstract:PURPOSE:Corneal autofluorescence is related to advanced glycation end products formed by glucose that reaches the cornea via the aqueous humour. The aim of the study was to examine the influence on autofluorescence of changes in permeability of the blood aqueous barrier. METHODS:Corneal autofluorescence was measured i...
journal_title:Current eye research
pub_type: 杂志文章
doi:10.1076/ceyr.26.4.307.15433
更新日期:2003-05-01 00:00:00