Abstract：
:In retinal degenerative disease (RD), the diminished light signal from dying photoreceptors has been considered the sole cause of visual impairment. Recent studies show a 10-fold increase in spontaneous activity in the RD network, challenging this paradigm. This aberrant activity forms a new barrier for the light signal, and not only exacerbates the loss of vision, but also may stand in the way of visual restoration. This activity originates in AII amacrine cells and relies on excessive activation of gap junctions. However, it remains unclear whether aberrant activity affects central visual processing and what mechanisms lead to this excessive activation of gap junctions. By combining genetic manipulation with electrophysiological recordings of light-induced activity in both living mice and isolated wholemount retina, we demonstrate that aberrant activity extends along retinotectal projections to alter activity in higher brain centers. Next, to selectively eliminate Cx36-containing gap junctions, which are the primary type expressed by AII amacrine cells, we crossed rd10 mice, a slow-degenerating model of RD, with Cx36 knockout mice. We found that retinal aberrant activity was reduced in the rd10/Cx36KO mice compared to rd10 controls, a direct evidence for involvement of Cx36-containing gap junctions in generating aberrant activity in RD. These data provide an essential support for future experiments to determine if selectively targeting these gap junctions could be a valid strategy for reducing aberrant activity and restoring light responses in RD.
journal_name
Exp Eye Resjournal_title
Experimental eye researchauthors
Ivanova E,Yee CW,Baldoni R Jr,Sagdullaev BTdoi
10.1016/j.exer.2015.05.013subject
Has Abstractpub_date
2016-09-01 00:00:00pages
81-9eissn
0014-4835issn
1096-0007pii
S0014-4835(15)00166-9journal_volume
150pub_type
杂志文章abstract：:Following the identification of potent, orally active inhibitors of aldose reductase, the next challenge comes in demonstrating clinical utility in the treatment of diabetic complications. It is not feasible to conduct pivotal studies in all indications within the same trial and neuropathy evolved as the lead indicati...
journal_title：Experimental eye research
pub_type： 临床试验,杂志文章,评审
doi：10.1016/0014-4835(90)90103-2
更新日期：1990-06-01 00:00:00
abstract：:This lecture summarizes studies on the effects of some of the neuropeptides which seem to be present in somatosensory and autonomic nerves in the uvea. Release of these peptides is likely to explain nerve induced effects in the eye which are not due to classical transmitters. Trigeminal nerve fibres in the eye seem to...
journal_title：Experimental eye research
pub_type： 杂志文章,评审
doi：10.1016/0014-4835(91)90138-5
更新日期：1991-07-01 00:00:00
abstract：:Erythropoietin (EPO) plays a critical role in the vascular system and exhibits angiogenic activity in endothelial cells (ECs) such as stimulation of cell proliferation, migration and tube formation in vitro. EPO is the major regulator of cell proliferation and differentiation of erythroid precursors and there by preve...
journal_title：Experimental eye research
pub_type： 杂志文章,收录出版
doi：10.1016/j.exer.2010.03.005
更新日期：2010-06-01 00:00:00
abstract：:Inadequate cross-linking between collagen lamellae is a characteristic feature of keratoconus corneas. The formation of covalent bonds between collagen and elastin fibrils, which maintain the biomechanical properties of the cornea, is mediated by the cuproenzyme lysyl oxidase and four lysyl oxidase-like enzymes. The a...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2012.09.005
更新日期：2012-11-01 00:00:00
abstract：:Jin H. Kinoshita has had a major role in fostering investigations on the molecular biology of the eye during his tenure as Scientific Director of the National Eye Institute (N.E.I.). His appreciation and support of molecular biology have been the basis for many advances in this area in the N.E.I. and have led to a fer...
journal_title：Experimental eye research
pub_type： 杂志文章,评审
doi：10.1016/0014-4835(90)90121-a
更新日期：1990-06-01 00:00:00
abstract：:In keratitis, keratocytes play a vital role by releasing inflammatory cytokines and expressing intercellular cell adhesion molecule-1(ICAM-1). GC31 is a peptide derived from thrombomodulin, an endogenous protein with potential anti-inflammation properties. We evaluated the protective effect of GC31 in LPS- or poly(I:C...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2017.07.017
更新日期：2017-11-01 00:00:00
abstract：:Axonal cytoskeleton proteins are intrinsically related to retinal ganglion cell (RGC) health and disease. This study quantifies and documents the sectoral distribution of axonal cytoskeleton proteins in the different laminar compartments of the normal human optic nerve head (ONH). Nine human eyes were used (mean age o...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2014.10.006
更新日期：2014-11-01 00:00:00
abstract：:Transport of circulating sulfur amino acids (SAA) into the lens epithelium and de novo glutathione (GSH) synthesis were studied in the perfused guinea-pig eye. Plasma-to-aqueous transfer of SAA was in their intact form (> or = 98%) and comparable with sucrose (an extracellular marker) within 30 min. The unidirectional...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0260
更新日期：1997-04-01 00:00:00
abstract：:This study describes the phosphatic metabolite contribution of the porcine corneal stroma [by phosphorus-31 nuclear magnetic resonance (P-31 NMR)] and the corneal epithelium (by difference calculation) to the total phosphatic metabolic profile of the intact (i.e. whole, undissected) cornea. In order to provide such a ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(85)90147-2
更新日期：1985-03-01 00:00:00
abstract：:Homocysteine is an amino acid required for the metabolism of methionine. Excess homocysteine is implicated in cardiovascular and neurological disease and new data suggest a role in various retinopathies. Mice lacking cystathionine-beta-synthase (cbs(-/-)) have an excess of retinal homocysteine and develop anatomical a...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2011.12.011
更新日期：2012-03-01 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：:It has long been assumed that unstimulated tears are more thoroughly equilibrated with epithelial secretions than stimulated tears, since they are in contact with tarsal, bulbar and corneal surfaces for longer. It was also believed from results with model solutions that soluble mucin is responsible for the observed su...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1998.0600
更新日期：1999-02-01 00:00:00
abstract：:It has been suggested that human iris pigment epithelial (IPE) cells isolated from iridectomized tissue could be used as autologous cells for transplantation into the subretinal space in diseases with dysfunctional retinal pigment epithelium (RPE). RPE cells synthesize a number of cytokines and their receptors which a...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1998.0517
更新日期：1998-08-01 00:00:00
abstract：:Previous studies have suggested that abnormal corneal wound healing in patients after photorefractive keratectomy (PRK) is associated with the appearance of myofibroblasts in the stroma between two and four weeks after surgery. The purpose of this study was to examine potential myofibroblast progenitor cells that migh...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2009.02.022
更新日期：2009-08-01 00:00:00
abstract：:Human tear fluid was collected with blunted glass capillaries before and after performing the Schirmer test (ST). The test caused an increase in the tear fluid (TF) plasmin concentration (from 0.40 +/- 0.29 microgram ml-1 (mean +/- S.E.M.) to 1.14 +/- 0.26 microgram ml-1; Mann-Whitney test P less than 0.001) and a dec...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(90)90223-h
更新日期：1990-02-01 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 purpose of this study was to examine the localization and relative levels of vascular endothelial growth factor (VEGF; an angiogenic factor) and pigment epithelium-derived factor (PEDF; an antiangiogenic factor) in aged human choroid and to determine if the localization or their relative levels changed in age-rela...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2005.05.007
更新日期：2006-01-01 00:00:00
abstract：:The aim of this study was to optimize non-viral gene transfer conditions and investigate the effect of fibroblast growth factor-1 (FGF-1) gene transfer on human corneal endothelial cell (HCEC) proliferation. Five non-viral vectors (Lipofectin, DMRIE-C, DAC-30, Effectene, FuGene6) were used to transfect HCEC with plasm...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2004.08.024
更新日期：2005-01-01 00:00:00
abstract：:The P23H-1 rat strain carries a rhodopsin mutation frequently found in retinitis pigmentosa patients. We investigated the progressive degeneration of the inner retina in this strain, focussing on retinal ganglion cells (RGCs) fate. Our data show that photoreceptor death commences in the ventral retina, spreading to th...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2010.10.003
更新日期：2010-12-01 00:00:00
abstract：:The mechanical, histological and pharmacological properties of the isolated cat ophthalmociliary artery are reported and compared for passively stretched ring segments from three locations on the artery. Ring segments were mounted in a modified myograph system after the method of Hogestatt, Andersson and Edvinsson (19...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(92)90047-v
更新日期：1992-03-01 00:00:00
abstract：:Oxyradicals probably play a major role in a number of specific pathological conditions of intraocular tissues, such as cataract formation and retinal degeneration. This paper reviews some of the mechanistic concepts relating to tissue damage by highly reactive oxidants derived from endogenous precursors, hydrogen pero...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(84)90075-7
更新日期：1984-12-01 00:00:00
abstract：:Calf lens alpha-crystallin was isolated and the lysine residues were extensively modified with a variety of chemical agents. The effect of these modifications on elastase inhibitor activity, apparent molecular size, antibody reactivity and solubility were determined. The addition of either a methyl group or a threose ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1993.1015
更新日期：1993-01-01 00:00:00
abstract：:Stroboscopic luminance flicker has been found to prevent the increase in eye growth normally associated with form deprivation through the release of retinal dopamine. In this study, we sought to investigate whether dopamine plays a role in the decreased growth observed with 2 Hz sine-wave luminance flicker and increas...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2019.107822
更新日期：2019-12-01 00:00:00
abstract：:Anatomic and physiological barriers limit drug delivery to the posterior segment of the eye via topical or systemic administration. Intravitreal administration has proven to be a safe and effective means of treating various posterior segment diseases. Elimination of a compound from the vitreous chamber may depend on l...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/s0014-4835(02)00311-1
更新日期：2003-03-01 00:00:00
abstract：:We have used a polyclonal antiserum to bovine ciliary epithelium, a secretory tissue involved in the formation of aqueous humor, to immunoscreen a directional lambda gt11 Sfi-Not cDNA expression library prepared from bovine ciliary epithelium poly(A)+ RNA. After immunoscreening 6 x 10(5) independent clones, 41 cDNA cl...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/0014-4835(92)90175-r
更新日期：1992-11-01 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：:cDNA clones encoding S-antigen (arrestin) were isolated from the expression library constructed from porcine retina and sequenced. The 1490 base pair fragment contained a 1215 base pair open reading frame. From the nucleotide sequence, an amino acid sequence consisting of 405 residues was deduced and a molecular mass ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.1996.0036
更新日期：1996-03-01 00:00:00
abstract：:Non-invasive imaging is an invaluable diagnostic tool in ophthalmology. Two imaging devices, the scanning laser ophthalmoscope (SLO) and spectral domain optical coherence tomography (SDOCT), emerged from the clinical realm to provide research scientists with a real-time view of ocular morphology in living animals. We ...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2016.10.001
更新日期：2016-12-01 00:00:00
abstract：:Fibroblast growth factors (FGF) are multipotent cytokines with demonstrated mitogenic, neurotrophic and angiogenic properties. There is evidence that they have multiple functions during and after development of the vertebrate eye. Amongst these, the role of FGF receptor mediated signaling in the retinal pigmented epit...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1006/exer.2000.0892
更新日期：2000-10-01 00:00:00
abstract：:The cornea is a self-renewing tissue located at the front of the eye. Its transparency is essential for allowing light to focus onto the retina for visual perception. The continuous renewal of corneal epithelium is supported by limbal stem cells (LSCs) which are located in the border region between conjunctiva and cor...
journal_title：Experimental eye research
pub_type： 杂志文章
doi：10.1016/j.exer.2016.09.008
更新日期：2016-11-01 00:00:00
