Abstract:
:Evidence is presented that alpha-crystallin isolated at 37 degrees C exists as a species, alpha m, which has a minimum molecular weight of about 320000 and a sedimentation coefficient of about 12 S. The amino acid composition, subunit distribution, near- and far-UV CD spectra and immunochemical properties were identical to those of the previously studied, 19 S protein, alpha c-crystallin (minimum molecular weight, 635000). It was demonstrated that only alpha m-crystallin was present in 37 degrees C lens extracts and that cooling of lenses or extracts resulted in a conversion of alpha m- to alpha c-crystallin. This conversion appears to be a general phenomenon, independent of age or species. It was concluded that alpha c-crystallin is an aggregate, produced by cooling, and that alpha m-crystallin is more likely to represent the in vivo form of the protein.
journal_name
Exp Eye Resjournal_title
Experimental eye researchauthors
Thomson JA,Augusteyn RCdoi
10.1016/0014-4835(83)90173-2subject
Has Abstractpub_date
1983-10-01 00:00:00pages
367-77issue
4eissn
0014-4835issn
1096-0007pii
0014-4835(83)90173-2journal_volume
37pub_type
杂志文章abstract::Sex steroids impact regulation of the ocular surface tissues and thus influence dry eye. Most tissues in the human body synthesise and metabolise active sex steroids at levels required by the tissue. This is likely to also be the case for humans in ocular surface tissues. This study investigated the presence and quant...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2018.11.015
更新日期:2019-02-01 00:00:00
abstract::The study aimed to determine the variation in thickness and biomechanical properties between the different regions of the human sclera. Thickness measurements were carried out along eight meridian lines extending from the posterior pole to limbus in 36 human donor scleras aged 52-96 years. Strip specimens were extract...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2010.02.010
更新日期:2010-05-01 00:00:00
abstract::Certain mutations in optineurin (gene OPTN) are associated with primary open angle glaucoma. Optineurin is ubiquitously expressed but it shows high level of expression in certain cells and tissues including retinal ganglion cells. It interacts with many proteins, often acting as an adaptor to link two or more proteins...
journal_title:Experimental eye research
pub_type: 杂志文章,评审
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更新日期:2016-03-01 00:00:00
abstract::RPE65-related Leber's congenital amaurosis (LCA) is a rod-cone dystrophy whose clinical outcome is mainly attributed to the loss of rod photoreceptors followed by cone degeneration. Pathogenesis in Rpe65(-/-) mice is characterized by a slow and progressive degeneration of rods dependent on the constitutive activation ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2011.12.019
更新日期:2012-03-01 00:00:00
abstract::AII amacrine cells are critical interneurons in the rod pathway of mammalian retina, active primarily in dim lighting conditions. Melatonin, a neuromodulator produced at night in the retina, is believed to induce retinal adaptation to dim lighting conditions in most vertebrate species examined to date, including human...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(03)00123-4
更新日期:2003-09-01 00:00:00
abstract::Lack of an optimal in vitro model of human corneal epithelial (HCE) cells is a major limitation in studying normal functions and gene regulations in HCE. Moreover, availability of a multi-layered HCE culture can reduce the usage of animals in the toxicity testing of consumer products. We have developed tetracycline-re...
journal_title:Experimental eye research
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doi:10.1016/s0014-4835(03)00175-1
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journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1994.1151
更新日期:1994-12-01 00:00:00
abstract::The phagocytosis of photoreceptor outer segments (OS) by the retinal pigment epithelium (RPE) is a receptor mediated process. A key component of this process is the receptor tyrosine kinase, Mer. RPE cells from the RCS rat, which lacks a functional mer gene, and do not express Mer protein, are able to bind OS, but are...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(03)00158-1
更新日期:2003-09-01 00:00:00
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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
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journal_title:Experimental eye research
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doi:10.1016/j.exer.2017.04.007
更新日期:2017-07-01 00:00:00
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journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2008.06.002
更新日期:2008-09-01 00:00:00
abstract::Retinal stimulation with high spatial resolution requires close proximity of electrodes to target cells. This study examines the effects of material coatings and 3-dimensional geometries of subretinal prostheses on their integration with the retina. A trans-scleral implantation technique was developed to place microfa...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2008.09.018
更新日期:2009-01-01 00:00:00
abstract::The objective of the study was to investigate the effects of baicalin, baicalein, and wogonin (plant flavonoids) on interleukin-6 (IL-6) and interleukin-8 (IL-8) protein production, mRNA expression, and nuclear factor-kappaB (NF-kappaB) binding activities induced by interleukin-1beta (IL-1beta) in human retinal pigmen...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(03)00116-7
更新日期:2003-08-01 00:00:00
abstract::As a potential drug for the prevention of secondary cataract formation (SCF), we investigated the effect of Aclacinomycin A (ACM) on the growth of cultures of porcine lens epithelial cells in vitro. ACM is an anthracycline that has been used in the treatment of acute myeloid leukemia in the human for many years. It ha...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::Keratoconus is a debilitating corneal thinning disease that principally develops in the second and third decades of life. Our group previously developed a novel approach to studying keratoconus, based on the observation that there is a gradient of damage across the keratoconic cone. We identified a number of cellular ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(03)00148-9
更新日期:2003-10-01 00:00:00
abstract::The shapes of two human lenses of different ages (27 and 46 years old) were altered by applying a stretching force to the ciliary muscle. The force was in the outward radial direction and was produced by an electronically driven stretching instrument which is described. The lenses were photographed for different degre...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1993.1168
更新日期:1993-11-01 00:00:00
abstract::Giant papillae, characteristic lesions of vernal keratoconjunctivitis, are formed as a result of the proliferation of conjunctival fibroblasts, the deposition of extracellular matrix, and the infiltration of inflammatory cells. The concentration of interleukin (IL)-4 is also increased in the tear fluid of individuals ...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/s0014-4835(02)00248-8
更新日期:2003-01-01 00:00:00
abstract::Age-related Macular Degeneration (AMD) is the leading cause of visual impairment and blindness in the elderly in developed countries. Neovascular/exudative (wet) AMD is the aggressive form of AMD and can involve choroidal neovascularization and vascular leakage. Anti-vascular endothelial growth factor (anti-VEGF) medi...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2016.02.010
更新日期:2016-04-01 00:00:00
abstract::The reversible phosphorylation of proteins plays essential roles in regulating various cellular events, and is regulated by the opposing actions of protein kinases and protein phosphatases. Protein kinases in the lens system have been well studied, but very little is known about lens protein phosphatases. Protein phos...
journal_title:Experimental eye research
pub_type: 更正并重新发布的文章,杂志文章
doi:
更新日期:2004-12-01 00:00:00
abstract::Endostatin is an endogenous angiogenesis inhibitor which requires E-selectin for its antiangiogenic activity. The aim of this study was to investigate the expression of endostatin in human choroidal neovascular membranes (CNV) secondary to age-related macular degeneration (AMD) with regard to vascularization and proli...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2005.12.017
更新日期:2006-08-01 00:00:00
abstract::Form-deprivation of chicks during early postnatal development results in ocular enlargement and great myopic refractive error (form-deprivation myopia). Previous studies have indicated that the retina, RPE and choroid play important roles in ocular enlargement in form-deprivation myopia. We aimed to isolate genes up-r...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1999.0765
更新日期:2000-02-01 00:00:00
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journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/0014-4835(92)90164-n
更新日期:1992-06-01 00:00:00
abstract::A key model for examining the activity-dependent development of primary visual cortex (V1) involves the imbalance in activity between the two eyes induced by monocular deprivation (MD). MD early in life causes dramatic changes in the functional and structural organization of mammalian visual cortex. The molecular sign...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2012.12.016
更新日期:2013-04-01 00:00:00
abstract::The suitability of the rat derived SV-40T immortalized RPE-J cell line for identifying proteome changes associated with RPE differentiation was evaluated by surveying changes in protein expression levels. Rat RPE-J cells were induced to undergo differentiation in culture by growth at the nonpermissive temperature of 4...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.2001.1058
更新日期:2001-10-01 00:00:00
abstract::The evaluation of morphological changes of the acini in the meibomian glands is important for the diagnosis and management of dry eye related to meibomian gland dysfunction. While several tools have been developed to detect meibomian gland structure, infrared imaging is generally used in clinical settings. Unlike the ...
journal_title:Experimental eye research
pub_type: 杂志文章,评审
doi:10.1016/j.exer.2017.07.005
更新日期:2017-10-01 00:00:00
abstract::Basic fibroblast growth factor (bFGF) has been shown to rescue dying photoreceptor cells in the RCS rat, a model with a genetic defect of the RPE that impairs outer segment phagocytosis. The purpose of the present study was to determine whether intravitreal injection of bFGF would have a similar effect on photorecepto...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1996.0147
更新日期:1996-11-01 00:00:00
abstract::Lens epithelial cells undergo a dramatic transformation during the process of differentiation into elongated fiber cells. The membrane-associated actin cytoskeleton is likely to play a critical role in the stabilization and maintenance of the highly elongated fiber cell shape. Tropomodulin is a tropomyosin-binding pro...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1006/exer.1996.0111
更新日期:1996-08-01 00:00:00
abstract::Extracts of bovine corneal stroma have been shown to activate keratocytes in culture to proliferate. We fractionated stromal extract on a column of Sephacryl S-300 and tested the fractions for mitogenic activity using cell culture and for the presence of IGF-II and its binding protein IGFBP-2 by Western blot. We found...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2007.12.004
更新日期:2008-03-01 00:00:00
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journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2006.02.012
更新日期:2006-09-01 00:00:00
abstract::Ocular rigidity (OR) is thought to play a role in the pathogenesis of glaucoma, but the lack of reliable non-invasive measurements has been a major technical challenge. We recently developed a clinical method using optical coherence tomography time-lapse imaging and automated choroidal segmentation to measure the puls...
journal_title:Experimental eye research
pub_type: 杂志文章
doi:10.1016/j.exer.2019.107831
更新日期:2020-01-01 00:00:00