Abstract:
PURPOSE:We evaluated whether UVA-riboflavin collagen cross-linking (CXL) increases transverse stromal shear moduli ex vivo, whether the shear moduli are greater in the anterior compared to the posterior stroma, and whether the shear moduli are affected by CXL. METHODS:The resistance to unidirectional transverse shear of human (n = 18) and porcine (n = 42) corneas was measured in a custom engineered biaxial biomechanical setup at different hydrations. The corneas were separated into untreated, riboflavin solution-treated, and CXL-treated groups. The depth dependency of shear moduli within groups was assessed in femtosecond laser cut sheets. Dry weights were obtained for solids correction. RESULTS:In porcine full-thickness buttons and 300 μm anterior sheets, a significantly increased unidirectional transverse shear modulus was detected in riboflavin-treated and CXL-treated groups compared to the respective untreated groups. There was no significant difference in shear modulus between riboflavin- and CXL-treated groups. In all groups, the shear moduli were greater in the anterior sheets compared to posterior sheets. Similar results were detected in human corneas. CONCLUSIONS:A method for unidirectional transverse shear resistance measurement was developed. The shear moduli were greater in the anterior compared to the posterior sheets. Increase in shear moduli was observed in the riboflavin and CXL groups compared to the untreated group, indicating that the immediate effects of the riboflavin or CXL treatment may be due partly to ground substance/dextran-5-phosphate interaction.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Søndergaard AP,Ivarsen A,Hjortdal Jdoi
10.1167/iovs.12-10710subject
Has Abstractpub_date
2013-07-26 00:00:00pages
5059-69issue
7eissn
0146-0404issn
1552-5783pii
iovs.12-10710journal_volume
54pub_type
杂志文章abstract::This study used primary cultures of conjunctival and corneal epithelial cells from rabbit, monkey and humans to investigate the infection process and host interactions of chlamydia. The epithelial cells were isolated from bulbar and palpebral conjunctivae and the cornea following incubation with EDTA or dispase and mi...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1988-07-01 00:00:00
abstract:PURPOSE:As in human populations, in which founder mutations have been identified in groups of families, a number of founder mutations have been observed across strains in mice. In this report, we provide a phenotype and genotype survey of three common eye diseases in the collection of JAX mice strains at The Jackson La...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-12289
更新日期:2013-07-24 00:00:00
abstract:PURPOSE:The authors examined the effects of both light and circadian phase on the synthetic activity of the dopamine producing enzyme, tyrosine hydroxylase (TH), in the retina of the Midas cichlid (Cichlasoma citrinellum). METHODS:TH activity was assayed in the retina-retinal pigment epithelium (RPE) complex of fish e...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1993-04-01 00:00:00
abstract:PURPOSE:Metabolism and transport of cysteine are critical for maintenance of the intracellular glutathione (GSH) level. In this study, transport mechanisms of L-cystine and regulation of GSH biosynthesis in the absence or presence of NO-induced oxidant stress were investigated in primary cultured rabbit conjunctival ep...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0409
更新日期:2003-03-01 00:00:00
abstract:Purpose:We investigated the accumulation of amyloid β (Aβ1-40, Aβ1-42, Aβ1-43) in the lens epithelium of patients with opacification of five different types (cortical cataract [COR]; nuclear cataract [NUC]; posterior subcapsular cataract [PSC]; retrodots [RD]; and water clefts [WC]). Methods:Samples were collected fro...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-22065
更新日期:2017-06-01 00:00:00
abstract:Purpose:Ocular neovascularization (NV) is a pathologic process characterized by the proliferation and infiltration of various types of cells such as RPE, glial, and endothelial cells, which interact with proangiogenic factors and inflammatory cytokines. Endocan is known to be enriched in retinal endothelial tip cells u...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-22945
更新日期:2018-02-01 00:00:00
abstract:PURPOSE:To explore changes in iris curvature over a 2-year period. To investigate associations between iris curvature and ocular biometric parameters. To explore relationships between a number of nonocular measurements and ocular biometric parameters. METHODS:Schoolboys enrolled 2 years previously were invited to retu...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-13757
更新日期:2014-06-10 00:00:00
abstract:PURPOSE:The aim of this study was to show the usefulness of three methods for measuring IOP: Goldmann applanation tonometry, rebound tonometry, and Ultra-High-Speed Scheimpflug technology. METHODS:The examined group consisted of 96 patients (192 eyes), including 63 women and 33 men with a mean age of 59.3 ± 19.9 years...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-13172
更新日期:2014-02-04 00:00:00
abstract:Purpose:Primary open angle glaucoma (POAG) is the most prevalent form of glaucoma, accounting for approximately 90% of all cases. The aqueous humor (AH), a biological fluid in the anterior and posterior chambers of the eye, is involved in a multitude of functions including the maintenance of IOP and ocular homeostasis....
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.17-23434
更新日期:2018-05-01 00:00:00
abstract:PURPOSE:To examine the in vitro properties of gap junctions on the isolated rabbit ciliary epithelium. METHODS:Intracellular potential was measured and lucifer yellow (5% in 1 M LiCl) was iontophoretically injected into a ciliary epithelial cell. Fixated tissue was examined with a laser confocal microscope. RESULTS:D...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract:PURPOSE:The purpose of this study was to determine the optimal conditions for prolonging corneal allograft survival by inducing anergy with the superantigen staphylococcal enterotoxin B (SEB). METHODS:A rat model of penetrating keratoplasty, whereby Fisher344 donor corneas are implanted into Lewis recipients, was used...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.02-0845
更新日期:2003-08-01 00:00:00
abstract:PURPOSE:To investigate the role of WDR36 and P53 sequence variations in POAG susceptibility. METHODS:The authors performed a case-control genetic association study in 268 unrelated Spanish patients (POAG1) and 380 control subjects matched for sex, age, and ethnicity. WDR36 sequence variations were screened by either d...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-7489
更新日期:2011-10-31 00:00:00
abstract:PURPOSE:To determine the efficacy of the M1-selective muscarinic antagonist, pirenzepine, in preventing experimentally induced myopia in a mammalian model, the tree shrew. METHODS:Tree shrews were monocularly deprived (MD) using translucent goggles or negative lenses for a period of 12 days. In two of the MD groups, t...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract::The expression of receptors for Fc portion (FcR) of immunoglobulin G (IgG) and for a C3b component of complement (C3bR) by herpes simplex virus (HSV) was studied in primary cultures of rabbit corneal cells. Monolayer cultures of epithelial, stromal and endothelial cells of the rabbit cornea were infected with three st...
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:A pilot study of human neural retinal transplantation was undertaken to investigate three major issues: whether a safe surgical procedure could be devised for transplantation of neural retinal tissue into the subretinal space, whether the transplant would be accepted in the subretinal space, and whether an impr...
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:PURPOSE:To assess photoreceptor structure in macular microholes by using adaptive optics scanning laser ophthalmoscopy (AO-SLO) and spectral-domain optical coherence tomography (SD-OCT) and compare with visual acuity. METHODS:Fourteen eyes from 12 patients with macular microholes underwent a full ophthalmologic examin...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.13-13792
更新日期:2014-08-21 00:00:00
abstract:PURPOSE:Orbital magnetic resonance imaging (MRI) was used to investigate the structural basis of motility abnormalities in congenital fibrosis of the extraocular muscles type 3 (CFEOM3), a disorder resulting from missense mutations in TUBB3, which encodes neuron-specific beta-tubulin isotype III. METHODS:Ophthalmic ex...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.10-5438
更新日期:2010-09-01 00:00:00
abstract::Vasoactive intestinal peptide (VIP) and d-ala2-methionine enkephalinamide (DALA, a long-lasting enkephalin analogue) were used to investigate the peptidergic control of lacrimal gland function. To characterize the mechanism by which VIP stimulates and DALA inhibits lacrimal peroxidase secretion, the effect of these pe...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1990-10-01 00:00:00
abstract:PURPOSE:To improve the 30-year-old "trypsin digestion" procedure for isolation of the complete retinal vasculature, which, in its time, was a revolutionary advance that allowed important discoveries about diabetic retinopathy; to provide a method that will yield more consistent results when applied to retinas represent...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1993-05-01 00:00:00
abstract::Newborn stump-tail monkeys were continuously exposed to 400 f-c of cool, white, fluorescent light for periods varying from 12 hr to 7 days. The right eye of each monkey was occluded by a patch of black velour material to serve as a control. The protected eyes retained normal ultrastructure; the exposed eyes showed pro...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1978-02-01 00:00:00
abstract:PURPOSE:To evaluate the occurrence and time course of hem- and lymphangiogenesis after normal-risk corneal transplantation in the mouse model and to test whether pharmacologic strategies inhibiting both processes improve long-term graft survival. METHODS:Normal-risk allogeneic (C57BL/6 to BALB/c) and syngeneic (BALB/c...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.03-1380
更新日期:2004-08-01 00:00:00
abstract:Purpose:To assess clinical characteristics, foveal structure, mutation spectrum, and prevalence rate of Åland eye disease (AED)/incomplete congenital stationary night blindness (iCSNB). Methods:A retrospective survey included individuals diagnosed with AED at a national low-vision center from 1980 to 2014. A subset of...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.16-19445
更新日期:2016-12-01 00:00:00
abstract::This paper investigates the amplitude of accommodation of early onset myopes, late onset myopes, emmetropes, and hyperopes. Eighty subjects were used, 41 women and 39 men, with an age range of 18-22 yr (mean = 19.82). All subjects wore an optimum refractive correction, giving visual acuities of 20/20 or better. Signif...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1986-07-01 00:00:00
abstract:Purpose:To validate the Liverpool Uveal Melanoma Prognosticator Online (LUMPO) in a cohort of patients treated at the University of California-San Francisco (UCSF). Methods:A retrospective chart review was performed of 390 patients treated between 2002 and 2007 for choroidal melanoma at UCSF. Similar patients (n = 117...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.16-19654
更新日期:2016-11-01 00:00:00
abstract::Analysis of cell populations in the cornea may be performed rapidly and accurately employing the technique of enzymatic disaggregation. To illustrate this method normal rat corneas and corneas infected 24 and 48 hours previously with Staphylococcus aureus were disaggregated in a solution containing pancreatin and coll...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1983-02-01 00:00:00
abstract:PURPOSE:To investigate macular changes in acute retinopathy of prematurity (ROP). METHODS:Fifty-four premature infants with ROP and 20 controls underwent routine ROP screening with indirect ophthalmoscopy and imaging. A tabletop spectral domain optical coherence tomography (SD-OCT) scanner (Spectralis; Heidelberg Engi...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.10-7155
更新日期:2011-07-15 00:00:00
abstract:PURPOSE:To investigate thickness profile changes of the corneal epithelium and Bowman's layer at the vertical and horizontal meridians with overnight myopia orthokeratology (OK) lenses. METHODS:Twenty subjects (age range: 19-33 years) wore reverse-geometry rigid gas-permeable OK lenses in both eyes for 30 days. Before...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.12-10263
更新日期:2013-01-23 00:00:00
abstract:Purpose:To investigate whether rapamycin protects tear production and the ocular surface during endoplasmic reticulum (ER) stress-induced dry eye syndrome in mice. Methods:Tunicamycin was injected intraperitoneally in BALB/c mice without or with rapamycin (TM or RM5 group). Peritoneal injection of PBS performed in veh...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.18-25583
更新日期:2019-03-01 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::Ultrastructural cytochemistry was used to localize a previously undescribed retinal enzyme activity, ie, "manganese-dependent pyrimidine 5'-nucleotidase" (MDPNase) activity in retinas from rats raised in cyclic light and killed at various times in the lighting cycle. In retinas fixed during the last 3 hr of darkness, ...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00