Abstract:
:Although intravitreal injection of antibiotics is being used more widely in treatment of bacterial endophthalmitis, the pharmacokinetic principles that underlie such therapy have been derived exclusively from experiments in the rabbit. Therefore, we studied several representative antibiotics in normal eyes of rhesus monkeys. Carbenicillin (1,000 micrograms), cefazolin (1,000 micrograms), or gentamicin (100 micrograms) was injected intravitreally. Vitreous and aqueous humors were aspirated at intervals up to 96 hours after injection. The half-life values in the vitreous humor were: carbenicillin 10 hours, cefazolin 7 hours, and gentamicin 33 hours. Concomitant intraperitoneal administration of probenecid prolonged the vitreal half-life of carbenicillin to 20 hours and of cefazolin to 30 hours. The estimated vitreous volumes in these monkeys were approximately 3.0-4.0 ml. These results are consistent with the hypothesis that, in primates as in rabbits, beta-lactam antibiotics are eliminated via the retinal route and the aminoglycoside via the anterior route. This supports the applicability of the rabbit model to the treatment of endophthalmitis in humans.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Barza M,Kane A,Baum Jsubject
Has Abstractpub_date
1983-12-01 00:00:00pages
1602-6issue
12eissn
0146-0404issn
1552-5783journal_volume
24pub_type
杂志文章abstract::Silicone oil (SiO) and fluorosilicone oil (FSiO) are used as vitreous substitutes during retinal detachment surgery. Emulsification of these oils causes complications in oil-injected eyes. One factor contributing to emulsification is interfacial tension (gamma i) of the oils. In general, the lower the gamma i, the mor...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1990-04-01 00:00:00
abstract:PURPOSE:To examine the behavior of fibroblasts and retinal pigment epithelial cells after attachment to the retinal surface in vitro to elucidate the pathobiology of the early stages of epiretinal membrane formation. METHODS:Human retinal pigment epithelial (HRPE) cells and bovine Tenon's capsule fibroblasts (BTFs) we...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1997-09-01 00:00:00
abstract:PURPOSE:To examine the expression of Angiotensin II (Ang II) and its type I, and type II receptors (AT1R, AT2R) in rabbit Tenon's capsule fibroblasts after trabeculectomy, and to investigate the effects of Ang II on cultured human Tenon's capsule fibroblasts (HTFs) proliferation, migration, phenotype transition, and ex...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-15301
更新日期:2015-01-06 00:00:00
abstract::An objective visual field can be mapped in terms of stimulus-induced eye movement. The authors used the scleral coil technique to record vergence and conjugate eye movements while stimulating different visual field locations with a 3 X 3 deg target whose image vergence was oscillated. For each of three subjects tested...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1986-05-01 00:00:00
abstract:Purpose:To investigate diurnal variation in the length of mouse rod outer segments in vivo. Methods:The lengths of rod inner and outer segments (RIS, ROS) of dark-adapted albino mice maintained on a 12-hour dark:12-hour light cycle with light onset 7 AM were measured at prescribed times (6:30 AM, 11 AM, 3:30 PM) durin...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.61.3.9
更新日期:2020-03-09 00:00:00
abstract:PURPOSE:The adult lacrimal gland (LG) is highly regenerative and is able to repair itself even after substantial damage; however, this ability to regenerate is lost with the development of dry eye conditions in chronically inflamed LGs.This study compares changes in the cell adhesion and cell matrix molecules and stem ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-17477
更新日期:2015-12-01 00:00:00
abstract:PURPOSE:To investigate the effect of hyperbaric oxygen (HBO) chamber treatment in mouse models of retinal ischemia. METHODS:Unilateral central retinal artery occlusion (CRAO) or optic nerve crush (ONC) was induced in 50 mice each, of which 30 were treated with 100% oxygen at 2 atm for 90 minutes immediately after inju...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-7574
更新日期:2011-09-29 00:00:00
abstract::An ultrasonic pachometer was used to measure the central, mid-peripheral, and peripheral thickness in 17 locations across the corneas of 12 adult New Zealand Albino rabbit eyes. The mean thickness at each location was entered into a microcomputer to generate a three-dimensional plot of corneal thickness. The rabbit co...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1983-10-01 00:00:00
abstract:Purpose:To determine the relationship between the sensitivity of the retina in the central 10° and the thickness of the retinal layers in patients with retinitis pigmentosa (RP). Methods:Fifty-two RP patients were studied. All of the patients had been examined by the Humphrey Field Analyzer 10-2 program (HFA10-2) and ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-24635
更新日期:2018-07-02 00:00:00
abstract:Purpose:Epithelial to mesenchymal transition (EMT) is a cause of anterior and posterior subcapsular cataracts. Central to EMT is the formation of actin stress fibers. Selective targeting of actin stress fiber-associated tropomyosin (Tpm) in epithelial cells may be a means to prevent stress fiber formation and repress l...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.61.6.2
更新日期:2020-06-03 00:00:00
abstract:Purpose:To identify potentially pathogenic variants (PPVs) in Chinese familial exudative vitreoretinopathy (FEVR) patients in FZD4, LRP5, NDP, TSPAN12, ZNF408, and KIF11 genes. Methods:Blood samples were collected from probands and their parent(s). Genomic DNA was analyzed by next-generation sequencing, and the sequen...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-23541
更新日期:2018-11-01 00:00:00
abstract:PURPOSE:To investigate the induction of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) gene expression by prostaglandin E2 (PGE2) in cultured rat Müller cells and to study the mechanism of the induction. METHODS:Müller cells were obtained from neonatal Sprague-Dawley rat retinas an...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1998-03-01 00:00:00
abstract:PURPOSE:The purpose of this study was to elucidate the differentiated expression patterns and phagocytic activities of two subtypes of microglia. METHODS:A rat optic nerve crush model was used to identify the expression patterns of two subtypes of microglia. Primary microglia were isolated from rat mixed glial culture...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-18509
更新日期:2016-05-01 00:00:00
abstract:PURPOSE:To investigate the effect of corneal trauma on gene expression in the lacrimal gland and to assess how many genes and what specific genes are regulated in response to corneal trauma. METHODS:A mouse model with acute corneal trauma was created with a chemical burn to the cornea with silver nitrate. Sixty-four f...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.04-0677
更新日期:2005-02-01 00:00:00
abstract:PURPOSE:Retinal injury induces Müller cell dedifferentiation by activating extracellular signal-regulated kinase (ERK) signaling. Stimulation of α2-adrenergic receptors protects against injury but also activates ERK in Müller cells. The purpose of this work was to study the effect of α2-adrenergic signaling on injury-i...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-16816
更新日期:2015-09-01 00:00:00
abstract:PURPOSE:To determine the concentration of group II phospholipase (PL) A(2), an antimicrobial molecule, in tears of normal subjects in different age and sex groups. METHODS:PLA(2) content of tears was measured in 122 healthy volunteers with ages ranging from 20 to 89 years (mean, 49.5 years) by a time-resolved fluoroim...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2001-02-01 00:00:00
abstract::Previous studies have used Badal laser optometry to demonstrate significant variance in the distribution of tonic (or "dark-focus") resting positions of accommodation (TA) for groups of observers. This study investigates whether individual differences in TA are due to individual differences in autonomic tone of the ci...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1985-07-01 00:00:00
abstract:PURPOSE:Activity in regions of the visual cortex corresponding to central scotomas in subjects with macular degeneration (MD) is considered evidence for functional reorganization in the brain. Three unresolved issues related to cortical activity in subjects with MD were addressed: Is the cortical response to stimuli pr...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.09-4926
更新日期:2010-12-01 00:00:00
abstract:Purpose:We assessed changes in age-specific prevalence of refractive error at the time of starting school, by comparing preschool and school age cohorts in Shanghai, China. Methods:A cross-sectional study was done in Jiading District, Shanghai during November and December 2013. We randomly selected 7 kindergartens and...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
doi:10.1167/iovs.16-20243
更新日期:2016-11-01 00:00:00
abstract::Purpose. Experimental autoimmune uveoretinitis (EAU), a Th1/Th17 cell-mediated autoimmune disease induced in mice, serves as a model of human endogenous uveitis. In this model, proinflammatory cytokines and various stimuli activate the transcriptional factor, nuclear factor-kappaB (NF-kappaB), in the retina. The thera...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.09-4030
更新日期:2010-04-01 00:00:00
abstract:PURPOSE:Environmental tobacco smoke (ETS) is widely regarded as a major modifiable risk factor for age-related macular degeneration (AMD). Yet, precisely how it exerts its pathologic effects is poorly understood. Since early-stage AMD is characterized by choroidal capillary loss, this study examined the effect of sides...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-13659
更新日期:2014-04-08 00:00:00
abstract:Purpose:To compare the capability of the lamina cribrosa depth (LCD) and lamina cribrosa (LC) curvature in discriminating between eyes with primary open-angle glaucoma (POAG) and healthy eyes. Methods:Seventy-seven eyes of 77 patients with POAG and 77 eyes of 77 healthy subjects who were matched for age, sex, and axia...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.16-20802
更新日期:2017-02-01 00:00:00
abstract:PURPOSE:Tendency-oriented perimetry (TOP) is a new strategy designed to estimate the sensitivity of the visual field quickly, by using linear interpolation between test locations. This study determined the spatial resolution characteristics of TOP. METHODS:A Monte-Carlo technique was used to simulate visual fields, an...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0828
更新日期:2003-05-01 00:00:00
abstract:PURPOSE:To explore the role of autocrine interleukin-1 alpha (IL-1 alpha) as a central regulator of the repair phenotype in corneal fibroblasts. METHODS:Disruption of the actin cytoskeleton with cytochalasin B (CB), which mimics changes in shape that occur in repair tissues, was used to stimulate repair gene expressio...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1997-06-01 00:00:00
abstract:PURPOSE:To determine the efficacy and safety of naked plasmid gene therapy to the corneal stroma and epithelium. METHODS:Naked plasmid DNA was injected under pressure into the cornea of mice. The expression of genes coding for beta galactosidase (beta-gal), enhanced green fluorescent protein (EGFP), vascular endotheli...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2001-08-01 00:00:00
abstract:PURPOSE:To identify if whole-body hydration plays an important role in dry eye (DE). We hypothesized that individuals classified as DE have higher plasma osmolality (Posm), indicating suboptimal hydration, compared with those classified as non-DE. METHODS:Using a hospital-based observational cross-sectional design, as...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10175
更新日期:2012-09-25 00:00:00
abstract:PURPOSE:To compare anterior segment parameters, assessed by anterior segment optical coherence tomography (ASOCT), in subjects categorized as primary angle closure suspect (PACS), primary angle closure (PAC), primary angle closure glaucoma (PACG), and previous acute PAC (APAC); and to identify factors associated with A...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-12285
更新日期:2013-08-07 00:00:00
abstract:PURPOSE:The purpose of the present study was to investigate the roles of caspase 1 and extracellular signal-regulated kinase (ERK) in inflammation-induced inhibition of lacrimal gland secretion. METHODS:Lacrimal gland inflammation was induced by injection of lipopolysaccharide (LPS; to study the role of caspase 1) or ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.08-1830
更新日期:2008-10-01 00:00:00
abstract:PURPOSE:Dry eye disease (DED) produces ocular pain and irritation, yet a detailed characterization of ocular sensitivity in a preclinical model of DED is lacking. The aim of the present study was to assess nociceptive behaviors in an aqueous tear deficiency model of DED in the rat. METHODS:Spontaneous blinking, cornea...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.15-16717
更新日期:2015-05-01 00:00:00
abstract:PURPOSE:To investigate the topographic relationship between ganglion cell-inner plexiform layer (GCIPL) and peripapillary retinal nerve fiber layer (pRNFL) defects in open-angle glaucoma patients with localized RNFL defects, using spectral-domain optical coherence tomography (SD-OCT). METHODS:We analyzed 140 eyes of 1...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.14-13925
更新日期:2014-05-06 00:00:00