Abstract:
PURPOSE:Lens epithelial tissue does not normally express major histocompatibility complex (MHC) class I molecules. In addition, the mechanism of self-tolerance to intraocular antigens is unknown. To study the effect of class I expression in the lens, transgenic mice were produced that express an allo-MHC class I molecule under the alpha A-crystallin proximal promoter. METHODS:p alpha Dd was generated by fusion of the H-2Dd structural gene to the alpha A-crystallin proximal promoter. Transgenic mice were produced, and founder lines were identified by Southern blot hybridization. Eyes from transgenic mice were cryostat sectioned and stained for Dd expression or fixed in paraformaldehyde and stained for histologic analysis. Lens RNA was isolated by acid phenol extraction, and transgene expression was analyzed by nuclease protection. RESULTS:The transgenic mice demonstrated dose-dependent, nonimmunologic lens defects consistent within a given line. In the highest expressing lines, ocular defects, including microphthalmia and cataract formation, were observed. Many adult mice from these lines demonstrated lens capsule rupture and a Dd-specific inflammatory response. Inflammation did not occur in mice with intact lens capsules. CONCLUSIONS:Overexpression of H-2Dd in the lens had serious nonimmunologic consequences on lens development and cataract formation. In addition, the high copy number mice revealed at least a partial loss of immunologic tolerance on lens capsule rupture. The lack of an inflammatory response in transgenic mice with intact lens capsules suggests that the physical barrier of the lens capsule is one mechanism of maintaining immune privilege.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Martin WD,Egan RM,Stevens JL,Woodward JGsubject
Has Abstractpub_date
1995-05-01 00:00:00pages
1144-54issue
6eissn
0146-0404issn
1552-5783journal_volume
36pub_type
杂志文章abstract:PURPOSE:To determine the mechanism that leads to the UVA light-dependent loss of glutathione reductase (GR) activity in human lens (HL). METHODS:Both the HL water-soluble (WS) fraction and yeast GR were irradiated with UVA light (200 mW/(cm(2). h) for 1 hour at +20 degrees C, and the specific activity (SA) was observe...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.03-0390
更新日期:2003-09-01 00:00:00
abstract:PURPOSE:To investigate the foveal changes after repair of macula-off rhegmatogenous retinal detachment (RRD). METHODS:Prospective comparative case series. Twenty-four eyes of 24 patients with macula-off/fovea-on detachment (n = 9) and fovea-off detachment (n = 15) were studied. Serial optical coherence tomography (OCT...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-15633
更新日期:2015-01-22 00:00:00
abstract:PURPOSE:To determine directional changes in peripheral corneal thickness and corneal astigmatism over a range of severity of Fuchs' endothelial corneal dystrophy (FECD). METHODS:Eyes with FECD were categorized as mild, moderate, or advanced according to the area and confluence of guttae and the presence of clinical ed...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-17311
更新日期:2015-09-01 00:00:00
abstract:Purpose:During development, the corneal epithelium (CE) and the conjunctiva are derived from the surface ectoderm. Here we have examined how, during development, the cells of these two issues become isolated from each other. Methods:Epithelia from the anterior eyes of chicken embryos were labeled with the fluorescent,...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.16-20737
更新日期:2017-03-01 00:00:00
abstract:Purpose:To validate the prediction accuracy of variational Bayes linear regression (VBLR) with two datasets external to the training dataset. Method:The training dataset consisted of 7268 eyes of 4278 subjects from the University of Tokyo Hospital. The Japanese Archive of Multicentral Databases in Glaucoma (JAMDIG) da...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-22907
更新日期:2018-04-01 00:00:00
abstract:PURPOSE:To establish mouse models for RPGR-associated diseases by generating and characterizing an Rpgr mutation (in-frame deletion of exon 4) in two different genetic backgrounds (BL/6 and BALB/c). METHODS:Gene targeting in embryonic stem (ES) cells was performed to introduce a in-frame deletion of exon 4 in the Rpgr...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-2742
更新日期:2010-02-01 00:00:00
abstract:PURPOSE:Growth factors act through high-affinity cell surface receptors expressed by target cells and are critical modulators of cell function. Because aqueous humor is known to contain growth factors, these molecules may play a key role in maintaining the normal function of the human trabecular meshwork (HTM). Alterna...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:The retrograde transport of wheat germ agglutinin-horseradish peroxidase (WGA/HRP) was used to study the localization of the neurons that innervate the superior tarsal muscle in the cynomolgus monkey. METHODS:A 5-10% WGA-HRP solution was applied to the medial part of the superior tarsal muscle. Seventy-two hou...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1993-06-01 00:00:00
abstract::Transmembrane electrical measurements were performed on the isolated rabbit iris-ciliary body (I-CB) to study the direct effects of halogenated inhalation anesthetic agents on the ciliary epithelium. Addition of either halothane, enflurane, or isoflurane to the control 95% O2:5% CO2 gas mixture resulted in a dose-depe...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1991-05-01 00:00:00
abstract:PURPOSE:Elevated levels of C-reactive protein (CRP), a proinflammatory marker, are associated with systemic vascular disorders. In addition, clinical studies have implicated that elevated CRP is an independent risk factor for diabetic retinopathy and age-related macular degeneration. However, the direct effect of CRP o...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-1387
更新日期:2008-05-01 00:00:00
abstract:PURPOSE:To investigate the capacity for rapid saccade adaptation in Williams-Beuren Syndrome (WBS), a genetic neurodevelopmental disorder, in which it has been observed that saccadic accuracy is severely reduced. METHODS:Saccade amplitude modification was elicited by backward steps (30% of target eccentricity) during ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.05-0617
更新日期:2006-04-01 00:00:00
abstract:PURPOSE:To test the validity of the color component subtraction method, a new objective technique of measuring nuclear cataract, and to correlate the tangent values of the different degrees of nuclear opacities to their corresponding subjective nuclear cataract grading using the Lens Opacities Classification System II ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:PURPOSE:Conjunctiva-associated lymphoid tissue (CALT) is assumed to be a key location for the generation of adaptive immune mechanisms of the ocular surface, but functional studies of CALT are still lacking. The purpose of this study was to establish an animal model that enables functional analysis of immune mechanisms...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-0809
更新日期:2008-04-01 00:00:00
abstract:PURPOSE:To assess the strength of the association between retinal nerve fiber layer (RNFL) thickness and optic disc topography measured with confocal retinal tomography (HRT II; Heidelberg Engineering, Dossenheim, Germany), optical coherence tomography (StratusOCT; Carl Zeiss Meditec, Inc., Dublin, CA), and scanning la...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.05-1489
更新日期:2006-07-01 00:00:00
abstract:PURPOSE:To assess the impact of vitamin A supplementation at 4-month intervals on the prevalence and incidence of xerophthalmia among preschool-age children. METHODS:A stratified, random sample of 40 wards with 4766 children in Sarlahi district of Nepal was selected to participate in a randomized, controlled, communit...
journal_title:Investigative ophthalmology & visual science
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1995-12-01 00:00:00
abstract:PURPOSE:To estimate gender- and age-specific prevalence of myopia and identify risk indicators for myopia in a population-based sample of Latino adults aged 40 years and older in La Puente, California. METHODS:Noncycloplegic automated refraction with supplemental standardized subjective refraction was performed for pr...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.05-1153
更新日期:2006-05-01 00:00:00
abstract:PURPOSE:To explore the association of AMD with long-term average blood pressure (BP) parameters, including pulse pressure (PP). METHODS:The ALIENOR study is a population-based study on age-related eye diseases in 963 residents of Bordeaux, France, aged 73 years or older. AMD was graded from nonmydriatic color retinal ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10192
更新日期:2013-03-28 00:00:00
abstract:PURPOSE:To visualize and quantify the three-dimensional (3D) spatial relationships of the structures of the aqueous outflow system (AOS) within intact enucleated mouse eyes using spectral two-photon microscopy (TPM) techniques. METHODS:Spectral TPM, including two-photon autofluorescence (TPAF) and second-harmonic gene...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-18491
更新日期:2016-06-01 00:00:00
abstract:PURPOSE:To characterize the molecular properties, cellular distribution, and subcellular distribution of bovine rom-1 and its interaction with peripherin/rds in photoreceptor cells as an important step toward elucidating the role of rom-1 in photoreceptor outer segment structure-function relationships and in inherited ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1996-02-01 00:00:00
abstract::Purpose. To understand the barriers facing primary care providers (PCPs), including nurse practitioners (NPs) and physician assistants (PAs), in the current referral-to-eye-care process and to solicit suggestions from PCPs on how to improve the current referral system. Methods. Four focus groups were conducted with a ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.09-4512
更新日期:2010-04-01 00:00:00
abstract:PURPOSE:Elevated levels of extracellular glutamate have been implicated in the pathophysiology of neuronal loss in both central nervous system and ophthalmic disorders, including glaucoma. This increase in glutamate may result from a failure of glutamate transporters, which are molecules that ordinarily regulate extrac...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract:PURPOSE:There is no consensus as how to calculate orbital soft tissue volume based on CT or MRI scans. The authors sought to validate their technique and to assess the intraobserver and interobserver variability of their calculations of bony orbital volume (OV), orbital fat volume (FV), and extraocular muscle volume (M...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-1030
更新日期:2008-05-01 00:00:00
abstract::Experimental detachments were made in Dutch rabbit eyes by injecting autologous serum or Hanks' solution into the subretinal space through a glass micropipette. The serum was resorbed at a rate of 0.064 +/- 0.023 microliter/mm2/hr, which is approximately half as fast as Hanks' solution. Both cyclic GMP and dibutyryl c...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1988-08-01 00:00:00
abstract:PURPOSE:To determine the potential efficacy and anatomic sites of action of prophylactic oral acyclovir using a murine model of ultraviolet-B-induced reactivation of herpes simplex 1 keratitis. METHODS:Latent infection with herpes simplex 1 (McKrae) was established in 80 National Institutes of Health inbred strain of ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1993-11-01 00:00:00
abstract:PURPOSE:Human brain generates miniature eye movements, such as microsaccades, to counteract image fading due to visual adaptation. Generation of microsaccade relies on the amount of retinal error or acuity demand for a desired visual task. The goal of this study was to assess the influence of visual blur, induced by un...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-15882
更新日期:2015-04-01 00:00:00
abstract:PURPOSE:Macular pigment (MP) may protect against age-related macular degeneration. This study was conducted to determine the extent of changes in the macular pigment density as a consequence of oral supplementation with lutein. A second purpose was to compare two objective measurement techniques. METHODS:In the first ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract:PURPOSE:Leber congenital amaurosis (LCA) and early-onset severe retinal dystrophy (EOSRD) are genetically heterogeneous, with 11 genes currently implicated. The LCA chip may be used to interrogate many variants in one hybridization reaction. The purpose of this study was to assess the utility of this technology. METHO...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.07-0207
更新日期:2007-12-01 00:00:00
abstract:Purpose:To quantify the effect of induced stray light on halo size, luminance threshold, and contrast sensitivity. Methods:Retinal stray light was induced in five healthy subjects using different photographic filters. The stray light induced ranged from levels observed in intraocular lenses (IOLs) with glistenings (lo...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-18514
更新日期:2016-10-01 00:00:00
abstract::The evidence-basis based on existing myopia control trials along with the supporting academic literature were reviewed; this informed recommendations on the outcomes suggested from clinical trials aimed at slowing myopia progression to show the effectiveness of treatments and the impact on patients. These outcomes wer...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,评审
doi:10.1167/iovs.18-25955
更新日期:2019-02-28 00:00:00
abstract:PURPOSE:To assess the range of macular pigment optical density (MPOD) in a healthy group of young adults of South Asian origin; to investigate whether any dietary factors or personal characteristics were related to intersubject variations in MPOD; and to compare the mean MPOD of the South Asian group with the mean MPOD...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10957
更新日期:2013-04-17 00:00:00