Abstract:
:The combined effects of adenosine and acetylcholine on the intracellular free-Ca2+ concentration in nonpigmented epithelial cells of the rabbit ciliary body were investigated using fura-2 fluorescence-ratio imaging. Acetylcholine (10 microM) by itself produced a modest increase in [Ca2+]i. Acetylcholine in combination with adenosine, or with the A1-specific agonists N6-cyclohexyl-adenosine, N6-cyclopentyl-adenosine and (R)-N6-(2-phenyl-1-methylethyl)-adenosine (0.1-1 microM), induced a massive increase in [Ca2+]i, which could be blocked by the A1-specific antagonist 8-cyclopentyl-1,3-dipropylxanthine. However, the A2-specific agonist 2-[(p-2-carboxyethyl)-phenethylamino]-5'-N-ethylcarboxamide-ade nos ine and the antagonist 3,7-dimethyl-1-(2-propynyl)xanthine were without effect. Incubation of the tissue with pertussis toxin did not alter the response to ACh alone but eliminated the synergistic effect of adenosine (or of epinephrine). It was concluded that in the epithelial cells of the rabbit ciliary body, adenosine and epinephrine synergistically potentiate the rise in [Ca2+]i produced by ACh. This potentiation appears to occur via a pertussis-toxin-sensitive pathway, perhaps through G(i).
journal_name
Exp Eye Resjournal_title
Experimental eye researchauthors
Farahbakhsh NA,Cilluffo MCdoi
10.1006/exer.1996.0194subject
Has Abstractpub_date
1997-02-01 00:00:00pages
173-9issue
2eissn
0014-4835issn
1096-0007pii
S0014-4835(96)90194-3journal_volume
64pub_type
杂志文章abstract::Post-translational modifications and/or structural changes induced by modifications are likely causes of the decrease in crystallin solubility associated with aging and the development of cataract. Characterization of human lens crystallins by mass spectrometry has demonstrated that betaB2-crystallin undergoes less mo...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.2001.1023
更新日期:2001-08-01 00:00:00
abstract::Due to the high toxicity of aminoglycoside antibiotics, many authors prefer to use third generation cephalosporines in the prophylaxis and treatment of intraocular infections. The aim of the present study was to determine safe ceftazidime levels in anterior chamber irrigation solution. Twenty-two eyes of 12 white New ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1996.0167
更新日期:1996-12-01 00:00:00
abstract::It has been speculated that the unitary eyes of vertebrates and molluscs, and the compound eyes of insects and crustaceans, evolved separately. On the other hand, the common use of rhodopsin as a photoreceptor molecule, and the conservation of Pax6 as a master control gene for eye development, suggest instead that the...
journal_title:Experimental eye research
pub_type: 杂志文章,评审
doi:10.1016/j.exer.2018.05.007
更新日期:2019-06-01 00:00:00
abstract::Albino mice exposed to 1 X 10(-4) W cm-2 of UV radiation in the range 290-400 nm for 12 hr per day developed anterior lens opacities within 1-2 months after onset of the exposure. Histological changes demonstrated marked derangement of the lens epithelium. When the radiation was filtered with glass, eliminating radiat...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(85)80011-7
更新日期:1985-10-01 00:00:00
abstract::To trace the path taken by the putative postganglionic secretomotor fibres to the lacrimal gland the contents of the orbital and pterygopalatine fossa were removed whole, cut coronally into slabs and embedded in resin. Thin sections were cut at varying intervals to reconstruct the pathway taken. One group of rami orbi...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2003.06.001
更新日期:2004-03-01 00:00:00
abstract::Iron is an essential biometal in the aqueous humor, the principal source of nutrients for the avascular cornea and the lens. Here, we explored whether the ciliary body (CB), the source of aqueous humor, transports iron, and if the prion protein (PrPC) facilitates this process as in the outer retina. Using a combinatio...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2018.05.031
更新日期:2018-10-01 00:00:00
abstract::Several scleral cross-linking (SXL) methods were suggested to increase the biomechanical stiffness of scleral tissue and therefore, to inhibit axial eye elongation in progressive myopia. In addition to scleral cross-linking and biomechanical effects caused by riboflavin and light irradiation such a treatment might ind...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2015.07.005
更新日期:2015-10-01 00:00:00
abstract::We have reported that the aspartyl (Asp)-151 residue in alphaA-crystallin in human eye lens was inverted to the D-isomer and isomerized to beta-Asp residue with age. We report here that ultraviolet (UV)-B irradiation induces the racemization and isomerization of the Asp-151 residue of alphaA-crystallin from lenses of ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1997.0315
更新日期:1997-07-01 00:00:00
abstract::Research in animal models have shown that exposing the eye to positive or negative spectacle lenses can lead to predictable changes in eye growth. Recent research indicates that brief periods (1-2 h) of monocular defocus results in small, but significant changes in axial length and choroidal thickness of human subject...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2019.03.019
更新日期:2019-05-01 00:00:00
abstract::Raman spectra were obtained from fresh, fixed and sliced rabbit lenses and from human lens slices. For all lenses and lens slices the ratio R, defined as the Raman intensity at 3390 cm-1 divided by the Raman intensity at 2935 cm-1, was measured at different locations along the visual and equatorial axis. The ratios R ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/0014-4835(89)90032-8
更新日期:1989-04-01 00:00:00
abstract::The lacrimal glands of male NOD mice exhibit many of the features of the human lacrimal gland in patients afflicted with the autoimmune disease, Sjögren's syndrome, including loss of secretory functions and lymphocytic infiltration into the lacrimal gland. To elucidate the early changes in the secretory pathway associ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2005.04.019
更新日期:2006-01-01 00:00:00
abstract::The retinal pigment epithelium is a transporting epithelium that helps regulate the volume and composition of the subretinal space surrounding photoreceptor outer segments. The capacity of the RPE to actively transport Na+ and K+ between the retina and the blood supply depends on the localization of the Na+, K(+)-ATPa...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1994.1144
更新日期:1994-11-01 00:00:00
abstract::Previous studies suggest that an alpha 2-related isoform of the catalytic subunit is predominant in the lens fiber cells. The alpha 1 isoform is predominant in the lens epithelium (Garner, Horwitz and Enomoto, 1992). Data are presented to show that strophanthidin-sensitive K+ transport is sustained by both of these le...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1994.1068
更新日期:1994-06-01 00:00:00
abstract::A specialized microenvironment or niche, which regulates maintenance, self-renewal, activation, and proliferation of stem cells by external signals, is one of the key prerequisites for stem cell function. However, the parameters determining the limbal stem cell niche are not yet defined. In order to characterize the r...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2007.08.020
更新日期:2007-12-01 00:00:00
abstract::In the neural retina, glial cells control formation of ionic gradients by mediating transmembrane water fluxes through aquaporin (AQP) water channels. Retinal content and immunolocalization of two water channels, AQP1 and AQP4, in the diabetic rat retinas during high-salt loading were examined in this study. Diabetes ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2009.06.020
更新日期:2009-11-01 00:00:00
abstract::Glycoconjugate mucin secretion from conjunctival goblet cells is tightly regulated by nerves and specialized pro-resolving mediators (SPMs) to maintain ocular surface health. Here we investigated the actions of the SPM resolvin E1 (RvE1) on cultured rat conjunctival goblet cell glycoconjugate secretion and intracellul...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2018.04.015
更新日期:2018-08-01 00:00:00
abstract::Arf encodes an important tumor suppressor, p19(Arf), which also plays a critical role to control hyperplasia in the primary vitreous during mouse eye development. In the absence of Arf, mice are born blind and display a phenotype closely mimicking severe forms of the human eye disease, persistent hyperplastic primary ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2016.01.004
更新日期:2016-04-01 00:00:00
abstract::Retinal inflammation is an integral component of many retinal diseases including diabetic retinopathy (DR), age-related macular degeneration (AMD) and retinopathy of prematurity (ROP). Inflammation is commonly initiated and perpetuated by myeloid-derived immune cells. In the retina, microglial cells are resident macro...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2019.05.010
更新日期:2019-08-01 00:00:00
abstract::The heparan sulfate (HS) is a component of proteoglycans in the extracellular matrix and on cell surfaces, modulating developmental processes. The aim of this study is to investigate whether the defect of HS in the periocular mesenchyme impairs ocular morphogenesis. First, using Protein 0-Cre transgenic mice, we ablat...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2009.09.017
更新日期:2010-01-01 00:00:00
abstract::Eosinophil infiltration is one of the aspects of the inflammatory response to an allergen. The aim of this study was to establish T-helper type-2 (Th2)-induced conjunctival eosinophilia in mice to evaluate the effect of anti-allergic drugs. Th2 clone, D10.G4.1. (D10) with its specific antigen, conalbumin was co-inject...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1999.0677
更新日期:1999-07-01 00:00:00
abstract::The presence of the alpha(1)-adrenoceptor subtypes in various parts of the pig and rabbit eyes was investigated using [(3)H]-prazosin radioligand binding. The characterization of the subtypes was achieved by performing competition experiments with various subtype selective drugs. In the pig retina, both alpha(1A)- and...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1999.0753
更新日期:2000-01-01 00:00:00
abstract::Rifampicin, an antibacterial drug widely used in the treatment of tuberculosis and leprosy, has recently been reported to have anti-oxidative and anti-apoptotic effects. However, its anti-angiogenic effect has not been investigated. We examined its anti-angiogenic effect on tube formation and proliferation by human um...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2007.10.003
更新日期:2008-01-01 00:00:00
abstract::Excised bovine and rhesus monkey vitreous samples were subjected to different hydrostatic pressures (0.03, 1 and 2 atm) for 12 hr. At the end of the experiment the samples were frozen in a -70 degrees C dry ice-acetone bath and thereafter maintained in frozen conditions. Differential scanning calorimetry (DSC) was use...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.2001.1021
更新日期:2001-07-01 00:00:00
abstract::We sought to characterize the ocular pharmacology, tolerability and intraocular pressure (IOP)-lowering efficacy of FR-190997, a non-peptidic bradykinin (BK) B2-receptor agonist. FR-190997 possessed a relatively high receptor binding affinity (Ki = 27 nM) and a high in vitro potency (EC50 = 18.3 ± 4.4 nM) for inositol...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2014.10.008
更新日期:2014-11-01 00:00:00
abstract::This study of lens protein composition found that some cytoskeletal proteins were degraded during the earliest stages of cataract formation. Cataract was induced in 13-14 day old rats by a single subcutaneous injection of sodium selenite (19 mumol kg-1). By 24 hr after the injection of selenite, the ratio of insoluble...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1996.0220
更新日期:1997-03-01 00:00:00
abstract::The signal transduction pathways initiated by Ca(2+)-mobilizing agonists, such as prostaglandin F(2alpha)(PGF(2alpha)) and carbachol (CCh), leading to activation of cytosolic phospholipase A(2)(cPLA(2)) and arachidonic acid (AA) release in a wide variety of tissues remain obscure. To further define the role of protein...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.2001.0991
更新日期:2001-05-01 00:00:00
abstract::The pre-retinal vitreous space of the eye of albino rabbits was perfused in vivo via a dialysis probe in order to measure the concentration of endogenous amino acids. Studies of isotope concentrations in the vitreal effluent following intracarotid injections of 3HOH and [14C]mannitol demonstrated that entrance of 3HOH...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(87)80008-8
更新日期:1987-02-01 00:00:00
abstract::By means of X-ray diffraction analysis, structural conversions of crystallins in human lens were detected in senile cataract and upon artificial dehydration of lens tissue. In senile cataract certain characteristics of the native three-dimensional structure of gamma- and beta-crystallins are completely lost, whereas d...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(89)80044-2
更新日期:1989-11-01 00:00:00
abstract::This review summarizes the Ernst H. Bárány Prize Lecture given at the meeting of the International Society of Eye Research in Geneva 2002. In the paper the path from the author's early studies on neurogenic inflammation in the eye to the search for a suitable prostaglandin analogue for glaucoma treatment, and the deve...
journal_title:Experimental eye research
pub_type: 杂志文章,评审
doi:10.1016/j.exer.2003.11.016
更新日期:2004-04-01 00:00:00
abstract::The objective of this study was to determine the cellular localization of P2Y(2) receptor gene expression in rabbit and primate ocular tissues using the technique of non-isotopic in situ hybridization. Fresh frozen whole eye from a New Zealand White rabbit and whole eye and eyelid from a rhesus macaque were cut into 5...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(03)00068-x
更新日期:2003-07-01 00:00:00