Abstract：
PURPOSE:The inner vasculature of the retina develops as a spreading network, which is preceded by spindle-shaped cells. These cells are alleged to be vascular precursor cells (angioblasts). This study was designed to test whether such angioblasts exist in neonatal mouse retina. METHODS:In situ hybridization and immunohistochemistry on mouse retinal wholemount preparations were used to visualize specific vascular cell types. RESULTS:In situ hybridization with an RNA probe against vascular endothelial growth factor receptor (VEGFR)-2 (a marker for endothelial cells and angioblasts) labeled the vascular network but failed to label the spindle-shaped cells in front of it. A probe against VEGFR1, a marker for endothelial cells only, revealed the same staining pattern. Pericytes, visualized with a probe against platelet-derived growth receptor (PDGFR)-beta, were spread over the entire vessel network, but not beyond it. However, in situ hybridization with a probe against PDGFRalpha (a marker for retinal astrocytes) labeled spindle-shaped cells preceding the vessel network. CONCLUSIONS:These observations imply that in the mouse retina the spindle-shaped cells preceding the forming vasculature are immature retinal astrocytes and not vascular precursor cells and that the primary vascular network in the retina develops by angiogenesis (budding from existing vessels) and not vasculogenesis (assembly of dispersed angioblasts).
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Fruttiger Mkeywords:
subject
Has Abstractpub_date
2002-02-01 00:00:00pages
522-7issue
2eissn
0146-0404issn
1552-5783journal_volume
43pub_type
杂志文章abstract：:A single injection of 20 mumol sodium selenite/kg body weight in 10-day-old rats caused severe nuclear cataract within 4 days. By 4 days postselenite injection, nuclear calcium levels increased from 0.4 to 6.8 mmol/kg lens dry weight. The purpose of these experiments was to determine if this calcium increase was assoc...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：PURPOSE:Accommodative effort during nearwork is thought to be a causative factor in the development of myopia. It has been proposed that an anomaly in autonomic control may be a precursor to the development of myopia. In the present study the closed-loop accommodation response after variations in fixation period was in...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1999-08-01 00:00:00
abstract：Purpose:The cone-rod homeobox (CRX) transcription factor is essential for photoreceptor gene expression, differentiation, and survival. Human CRX mutations can cause dominant retinopathies of varying onset and phenotype severity. In animal models, dominant frameshift Crx mutations introduce a premature termination codo...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.17-22075
更新日期：2017-09-01 00:00:00
abstract：PURPOSE:Noise field campimetry, performed according to Aulhorn and Köst, confronts patients with a large field of irregularly flickering dots, and many patients immediately perceive their visual field defects. The original method had a somewhat low specificity and sensitivity, especially for patients with visual field ...
journal_title：Investigative ophthalmology & visual science
pub_type： 临床试验,杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:The metabolic disorder in diabetics often results in progressive retinopathy with severe visual impairment. Changes in metabolism can influence corneal autofluorescence. This has led to speculation that diabetic retinopathy might be associated with changes in corneal autofluorescence. Corneal autofluorescence of both ...
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:To assess the agreement between structural (optical coherence tomography [OCT]) and functional (visual field [VF]) glaucomatous damage with an automated method and deviation/probability maps, and to compare this method to a metric method. Methods:Wide-field spectral-domain OCT scans, including the disc and mac...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.19-27920
更新日期：2019-10-01 00:00:00
abstract：Purpose:To investigate the roles and pathways of microRNAs 143 and 145 in transforming growth factor (TGF)-β1-induced human subconjunctival fibrosis. Methods:Human tenon's capsule fibroblasts (HTFs) were obtained from a healthy eye. After treating cultured HTFs with TGF-β1, the expression of microRNAs 143 and 145 was ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.19-26797
更新日期：2019-05-01 00:00:00
abstract：PURPOSE:Endothelin (ET)-1 is known to inhibit active NaK transport by as much as 50% in kidney tubule and other tissues. The presence of low levels of ET-1 in aqueous humor combined with the potential for release of ET-1 from ciliary processes suggests that the lens could be exposed to ET-1 in vivo. In this study, expe...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2001-04-01 00:00:00
abstract：PURPOSE:To understand the involvement of the CYP1B1 gene in cases of primary open-angle (POAG) and primary angle-closure (PACG) glaucomas and obtain the haplotype background of these mutations. METHODS:The entire coding region of CYP1B1 was screened by resequencing in 224 unrelated cases of POAG (n = 134) and PACG (n ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-0629
更新日期：2007-12-01 00:00:00
abstract：PURPOSE:To our knowledge, studies comparing binocular eye movements during reading task in strabismic children are scarce. The goal of our study was to examine binocular coordination of saccades during reading in strabismic children. METHODS:Binocular eye movements were recorded by an infrared system (mobile EBT) in 1...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-10526
更新日期：2013-01-21 00:00:00
abstract：PURPOSE:To study the antineoplastic effect of vitamin D analogues in a xenograft model of human retinoblastoma. METHODS:Athymic mice were injected subcutaneously with Y79 cells and treated 5 days a week with either mineral oil (control group) or the vitamin D analogues calcitriol or 1,25-dihydroxy-16-ene-23-yne vitami...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.02-1198
更新日期：2003-10-01 00:00:00
abstract：PURPOSE:We examined changes of the central nervous system in patients with advanced primary open-angle glaucoma (POAG). METHODS:The clinical observational study included 15 patients with bilateral advanced POAG and 15 healthy normal control subjects, matched for age and sex with the study group. Retinal nerve fiber l...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-9893
更新日期：2013-01-17 00:00:00
abstract：PURPOSE:To systematically assess the changes in retinal morphology during the healing of retinal photocoagulation lesions of various clinical grades. METHODS:Rabbits were irradiated with a 532-nm Nd:YAG laser with a beam diameter of 330 microm at the retinal surface, a power of 175 mW, and pulse durations between 5 an...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.08-1928
更新日期：2008-12-01 00:00:00
abstract：PURPOSE:To investigate the accuracy and precision of threshold estimates returned by two Bayesian perimetric strategies, staircase-QUEST or SQ (a Swedish interactive threshold algorithm [SITA]-like strategy) and ZEST (zippy estimation by sequential testing), and to compare these measures with those of the full-threshol...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.03-0023
更新日期：2003-11-01 00:00:00
abstract：:PURPOSE. To evaluate the shape of the posterior corneal surface in eyes with normal myopia or myopic astigmatism and the changes after LASIK and epi-LASIK. METHODS. A total of 152 eyes were included in the study. The posterior corneal elevation was measured with Scheimpflug imaging (Pentacam; Oculus, Wetzlar, Germany)...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.09-4811
更新日期：2010-07-01 00:00:00
abstract：PURPOSE:Levels of some cytokines are significantly higher in the vitreous fluid of patients with acute uveitis than in normal vitreous fluid. The authors sought to determine which proinflammatory cytokines were upregulated in the vitreous fluid of patients with ocular sarcoidosis. METHODS:Samples of vitreous fluid wer...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.11-9244
更新日期：2012-06-20 00:00:00
abstract：:Topically applied dipivalyl epinephrine (DPE) and related compounds have been found to inhibit passive anaphylactic reaction in rat conjunctiva. The order of activity is as follows: isoproterenol greater than DPE greater than epinephrine greater than norepinephrine. The antianaphylactic effect of DPE was antagonized b...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1980-07-01 00:00:00
abstract：PURPOSE:The increase in intraocular pressure in primary open-angle glaucoma (POAG) may involve transforming growth factor (TGF)-beta2 signaling, as TGF-beta2 is found in higher amounts than normal in the aqueous humor of patients with POAG. In vitro, TGF-beta2 causes an accumulation of extracellular matrix (ECM) in the...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-0226
更新日期：2007-02-01 00:00:00
abstract：PURPOSE:To characterize the static blood flow autoregulation in the optic nerve head (ONH), and to investigate its role in hemodynamic changes in experimental glaucoma (EG). METHODS:Unilateral elevation of intraocular pressure (IOP) was induced in 15 adult rhesus macaques by laser treatment to the trabecular meshwork....
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-13716
更新日期：2014-02-10 00:00:00
abstract：PURPOSE:Evidence suggests that altered metabolism of amyloid precursor protein (APP) may play a role in the pathophysiology of retinal ganglion cell (RGC) death in the etiology of glaucoma. The authors sought to determine the distribution of APP and amyloid-beta (Abeta) in DBA/2J glaucomatous mouse retinas. METHODS:Th...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-1249
更新日期：2007-11-01 00:00:00
abstract：PURPOSE:To investigate mechanical properties of the human posterior lens capsule. METHODS:Twenty-five human donor eyes were obtained from an eye bank. The age of the donors ranged from 1 to 94 years. Test specimens were prepared as tissue rings from posterior lens capsules by means of excimer laser. Capsular thickness...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.02-0096
更新日期：2003-02-01 00:00:00
abstract：PURPOSE:To study retinal microstructure in Usher Syndrome type 1B (USH1B) caused by MYO7A mutations as a prelude to treatment initiatives. METHODS:Patients with MYO7A-USH1B (n=17; ages 5-61) were studied with optical coherence tomography. Retinal laminae across horizontal and vertical meridians were measured. Colocali...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.08-3122
更新日期：2009-04-01 00:00:00
abstract：PURPOSE:Fluorescein and rose bengal are dyes used routinely in the examination of the ocular surface. As part of an ongoing search for a superior ophthalmic dye with optimal specificity and sensitivity and a lack of interference with subsequent viral cultures, and as part of studies that use chemical dyes to understand...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：PURPOSE:To investigate the effects of mitomycin C (MMC) on the number of keratocytes and the proliferation of fibroblasts after photorefractive keratectomy (PRK) and exposure to ultraviolet B (UV-B) irradiation. METHODS:The right eyes of New Zealand White rabbits in Groups 1, 2, and 3 (n = 18 each) underwent PRK to co...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.04-0070
更新日期：2004-09-01 00:00:00
abstract：:The autofluorescence of reduced pyridine nucleotides (NADH and NADPH) and oxidized flavoproteins within the rabbit cornea were noninvasively measured as a function of depth. This was accomplished by combining a corneal specular microscope with a time-shared spectrofluorometer. When either 8 mM sodium pentobarbital or ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
abstract：PURPOSE:Given reports of corneal edema after endothelial exposure to platelet activating factor (PAF), the authors have investigated whether PAF can affect the function of corneal endothelium in vitro. METHODS:The endothelial side of deepithelialized rabbit corneas was perfused with BSS+ and test agents: PAF, its inac...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1996-08-01 00:00:00
abstract：PURPOSE:To investigate the relationship between long-term glycemic control and photopic negative response (PhNR) changes in the blue flash ERG in adolescents with type 1 diabetes (T1D) without diabetic retinopathy (DR). METHODS:After light adaptation, ERG responses to 1.60 cd·s/m(2) blue (420 nm) flashes (blue flash E...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.11-8263
更新日期：2012-02-13 00:00:00
abstract：PURPOSE:Rabbits are used commonly for the evaluation of drugs and surgery to lower intraocular pressure (IOP). The authors compared the accuracy and variability of three tonometers for measuring IOP in rabbits. METHODS:The anterior chamber of adult rabbits was cannulated with a 25-gauge needle connected to an elevated...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1996-04-01 00:00:00
abstract：:The effect of systemic hypoxia on the maintained firing rate (MFR) of single retinal ganglion cells has been measured in the cat at a constant luminance level. Systemic hypoxia was produced by reducing the percentage of oxygen in the respiratory mixture under forced ventilation so that arterial PCO2 and pH were consta...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1981-09-01 00:00:00
abstract：:Lateral heterophoria at distance often is cited as an index of tonic vergence, yet recent research has shown that vergence in darkness is more convergent than most measures of phoria. Two experiments were conducted to investigate the possible role of accommodation in this discrepancy. Experiment I compared measures of...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1992-08-01 00:00:00
