Abstract:
:An automated Minigel electrophoresis system (PhastSystem, Pharmacia, Uppsala, Sweden) was tested for human tear protein analysis. Tear samples were treated under nonreducing or reducing conditions before sodium dodecyl sulphate polyacryl amide gel electrophoresis (SDS-PAGE). Micro-amounts of tears (2 microliters) were sufficient for analysis and separation and visualization of proteins were completed within 2 hr. Tear proteins were identified using purified control proteins and immunoblotting techniques, using antisera against immunoglobulin (Ig) A (alpha) heavy chains, Ig heavy and light chains, secretory components and lactoferrin. In nonreduced tears, lactoferrin (seen as a double band), serum albumin, tear-specific prealbumin (TSPA), and lysozyme were clearly separated. Secretory IgA (sIgA) was seen as a smear on top of the gel. Immunostaining also showed a major Ig light chain containing protein. After reduction, the protein profiles showed marked changes. In reduced tears, immunoglobulin heavy and light chains (molecular weight [MW]: 64 and 28 kD, respectively) were detected on the SDS-PAGE profile after immunostaining, and represented disulfide cleavage fragments, which originated from sIgA. Reduction resulted in the liberation of the secretory component piece (MW: 85 kD), which was found to co-migrate with the tear lactoferrin bands. Both lactoferrin and serum albumin acted as larger proteins on SDS-PAGE after reduction. The authors found that the two methods of sample treatment, before electrophoresis, resulted in marked differences on the electropherograms.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Kuizenga A,van Haeringen NJ,Kijlstra Asubject
Has Abstractpub_date
1991-02-01 00:00:00pages
381-6issue
2eissn
0146-0404issn
1552-5783journal_volume
32pub_type
杂志文章abstract:PURPOSE:This study focuses on the identification of regulatory elements that contribute to lens-specific expression of the human CP49 gene within the 5'-flanking DNA sequences. METHODS:The DNA sequence upstream of the human CP49 coding region was subcloned as a set of 5' and 3' deletion series. The constructs were tra...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0162
更新日期:2003-01-01 00:00:00
abstract:PURPOSE:Classically, acute and chronic inflammations are characterized by fibrin deposition and a dynamic influx of leukocytes. This leukocyte recruitment, and associated activation, is thought to be dependent on the generation of leukocyte chemotactic factors (LCF). Although the functional existence of LCF in ocular t...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1994-11-01 00:00:00
abstract:PURPOSE:To investigate, using multifocal electroretinography (mfERG) and optical coherence tomography (OCT), potential spatial associations between local neuroretinal function and local retinal thickness in patients with diabetes. METHODS:Forty-five patients without retinopathy (10 with Type 1 diabetes; 35 with Type 2...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10293
更新日期:2012-09-12 00:00:00
abstract:PURPOSE:Diabetic retinopathy (DR) is a leading cause of blindness, yet pertinent animal models are uncommon. The sand rat (Psammomys obesus), exhibiting diet-induced metabolic syndrome, might constitute a relevant model. METHODS:Adult P. obesus (n = 39) were maintained in captivity for 4 to 7 months and fed either veg...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-8423
更新日期:2011-11-21 00:00:00
abstract:PURPOSE:To determine whether a novel peroxynitrite-based photosensitizer S-nitrosoglutathione (GSNO) can produce specific in vitro light-induced cell death of both standard animal lung and human Tenon's capsule (TC) fibroblasts and to compare this effect with that produced by the established photodynamic porphyrin prec...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract:PURPOSE:To determine the relationship between optical coherence tomography (OCT) images of the retina and retinal substructure in vitro and in vivo. METHODS:In vitro, OCT images of human and bovine retina were acquired after sequential excimer laser ablation of the inner retinal layers. Measurements of bands in the OC...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1999-09-01 00:00:00
abstract:PURPOSE:Bevacizumab eyedrops inhibit corneal neovascularization. The purpose of this study was to analyze the safety profile of VEGF-A neutralization at the ocular surface. METHODS:Bevacizumab eyedrops (5 mg/mL) and an antimurine VEGF-A antibody (250 microg/mL) were applied to normal murine corneas five times a day fo...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-1129
更新日期:2009-05-01 00:00:00
abstract::The Early Treatment Diabetic Retinopathy Study (ETDRS) and other standardized classification schemes have laid a foundation for tremendous advances in the understanding and management of diabetic retinopathy (DR). However, technological advances in optics and image analysis, especially optical coherence tomography (OC...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-21873
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:To evaluate the glaucoma progression in patients with a history of refractive corneal surgery (RCS). METHODS:A total of 313 eyes of 313 glaucoma patients (RCS group, 34 eyes; non-RCS group, 279 eyes) with a mean follow-up period of 2.7 years were included. Glaucoma progression was determined either by experts'...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-9862
更新日期:2012-07-03 00:00:00
abstract:PURPOSE:To evaluate a fully automated local fractal dimension method to quantify vessel density and foveal avascular zone (FAZ) area in optical coherence tomography angiography (OCTA) images. METHODS:Fifty-two healthy Asian Indian eyes underwent imaging prospectively with OCTA system. Superficial and deep retinal vasc...
journal_title:Investigative ophthalmology & visual science
pub_type: 信件
doi:10.1167/iovs.15-18287
更新日期:2016-01-01 00:00:00
abstract:Purpose:Lens epithelial cell (LEC) conversion to myofibroblast is responsible for fibrotic cataract surgery complications including posterior capsular opacification. While transforming growth factor beta (TGFβ) signaling is important, the mechanisms by which the TGFβ pathway is activated post cataract surgery (PCS) are...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-25067
更新日期:2018-10-01 00:00:00
abstract:Purpose:To use laser speckle flowgraphy (LSFG) to assess blood flow (BF) in the optic nerve head (ONH) tissue and choroid during elevated intraocular pressure (IOP). Methods:This prospective study included 20 eyes of 20 healthy volunteers. The testing protocol had a baseline phase, two elevated IOP phases (+10 and +20...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-23872
更新日期:2018-07-02 00:00:00
abstract:PURPOSE:To determine the earliest changes that occur in the retina after the onset of ectopic expression of vascular endothelial growth factor (VEGF) by photoreceptors in transgenic mice, to characterize the development of neovascularization (NV), and to determine the feasibility of using these mice to test the efficac...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::Inoculation of the neurotropic coronavirus mouse hepatitis virus strain JHM intravitreally or into the anterior chamber causes acute infection of the retinal pigment epithelium (RPE) and neural retina. Weeks later, many retinas have foci of moderate to severe atrophy. The effect of coronavirus infection (after intravi...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract:PURPOSE:Adipose-derived stem cells (ASCs) have gained importance due to their myriad potential clinical applications. We hypothesize that progenitor cells also exist besides those conventionally isolated from the stromal vascular fraction (SVF). METHOD:Central and medial orbital adipose tissues obtained from patients ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-14441
更新日期:2014-07-03 00:00:00
abstract:PURPOSE:Transgenic mice were developed that express tetracycline-controlled transactivator 1 (tTA1) specifically in photoreceptor cells. In these mice the transcription of the gene of interest can be easily inactivated in the retina in a short time frame. METHODS:A construct was prepared containing tTA1 under control ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0340
更新日期:2003-02-01 00:00:00
abstract::Recombinant human interferon alpha subtype D (RIFN alpha D) was effective in reducing the shedding of herpes simplex virus type-1 (HSV-1) induced by 6-hydroxydopamine iontophoresis followed by topical epinephrine application in previously infected rabbit corneas. A treatment schedule of RIFN alpha D, two drops QID was...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1985-02-01 00:00:00
abstract:PURPOSE:Retinopathy of prematurity (ROP) is a major problem among very preterm survivors of neonatal intensive care. Neovascularization of the retina is prominent in the proliferative stages of ROP and is under the control of several factors such as vascular endothelial growth factor (VEGF). This study was undertaken o...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.03-1303
更新日期:2004-06-01 00:00:00
abstract:PURPOSE:In an earlier study it was reported that thrombin significantly reduces the rate of Na,K-adenosine triphosphatase (ATPase)-mediated ion transport by porcine lens. Because thrombin stimulates the release of endogenous endothelin (ET)-1 stores from some tissues, and because ET-1 can cause Na,K-ATPase inhibition, ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2002-03-01 00:00:00
abstract:PURPOSE:To determine whether people with central visual field loss (CFL) show a smaller visual contribution to posture stabilization than people with normal vision and to determine the visual factors that predict the magnitude of visual stabilization in people with central visual field loss. METHODS:Posture informatio...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1996-07-01 00:00:00
abstract::The earlier reports from this laboratory that the renewal of rat photoreceptor membranes was dependent on essential fatty acids have not been confirmed in more recent studies. ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1978-11-01 00:00:00
abstract:PURPOSE:To localize and identify the gene and mutations causing autosomal dominant retinitis pigmentosa in a Chinese Family. METHODS:Families were ascertained and patients underwent complete ophthalmic examinations. Blood samples were collected and DNA was extracted. A linkage scan of genomic regions containing known ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.09-3725
更新日期:2010-02-01 00:00:00
abstract:PURPOSE:Aquaporin (AQP) is a hexahelical integral membrane protein that functions as a constitutive channel for water and regulated channel for cations in fluid transporting tissues, including many in the eye. Although AQP1 has been cloned from a cDNA library prepared from cultures of retinal pigment epithelial (RPE) c...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.03-0001
更新日期:2003-06-01 00:00:00
abstract:PURPOSE:During mammalian embryonic eyelid closure ADAM17 has been proposed to play a role as a transactivator of epidermal growth factor receptor (EGFR) signaling by shedding membrane bound EGFR ligands. However, ADAM17 also sheds numerous other ligands, thus implicating ADAM17 in additional molecular pathways. The goa...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-11130
更新日期:2013-01-07 00:00:00
abstract:PURPOSE:To examine the involvement of p27(KIP1) in the regulation of the proliferation of the developing corneal endothelium. METHODS:Central and peripheral corneas in C57Bl6 mice at postnatal day (P)1, P11, and 12 weeks after birth were analyzed by immunocytochemistry with anti-p27(KIP1), -p57(KIP2), and -proliferati...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.03-1238
更新日期:2004-07-01 00:00:00
abstract::The authors have put quantitation of human lens fluorescence on a rational basis by using the accompanying Raman signal from lens protein as a normalization factor. The intensity ratio, Fluorescence/Raman (F/R), may be used to compare lenses of different ages when the exciting wavelength is long enough to give a measu...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract:PURPOSE:To investigate the nature and reversibility of biochemical and functional changes in the retina encountered over a single generation of dietary n-3 polyunsaturated fatty acid deficiency in guinea pigs. METHODS:Dunkin-Hartley guinea pigs were fed for 16 weeks after weaning with diets supplemented with safflower...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1999-02-01 00:00:00
abstract:PURPOSE:To determine whether a new cyclic GMP analog, 2'-O-(4-benzoyl)benzoylguanosine 3',5' cyclic monophosphate (BB-cGMP), significantly reduces intraocular pressure in either normotensive or hypertensive eyes of rabbits. METHODS:Intraocular pressure of normal adult rabbits and/or rabbits with alpha-chymotrypsin-ind...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1994-05-01 00:00:00
abstract:PURPOSE:The hypothesis in the study was that androgens control meibomian gland function, regulate the quality and/or quantity of lipids produced by this tissue, and promote the formation of the tear film's lipid layer. To test this hypothesis, a study was conducted to determine whether androgen receptor protein exists ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-11-01 00:00:00
abstract:PURPOSE:To determine whether the lipid peroxidation inhibitor tirilazad mesylate can block the death of retinal ganglion cells induced by the inhibition of oxidative phosphorylation and glycolysis. METHODS:Rat retinal ganglion cells were labeled retrogradely with the fluorescent tracer DiI, and mixed cultures were pre...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1996-12-01 00:00:00