Local Modulation of Retinal Vein Tone.

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

authors： Alder VA,Constable IJ

更新日期：1981-09-01 00:00:00

abstract：PURPOSE:To detect the expression of cell adhesion molecules (CAMs), including beta integrins, intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1, leukocyte-endothelial cell adhesion molecule-2, E-cadherin, and CD44, in cultured lens epithelial cells (LECs) of human cataracts. To show that LEC...

journal_title：Investigative ophthalmology & visual science

authors： Nishi O,Nishi K,Akaishi T,Shirasawa E

更新日期：1997-03-01 00:00:00

abstract：Purpose:To compare cross-sectional choroidal morphology in rhesus macaque and human eyes using enhanced-depth imaging optical coherence tomography (EDI-OCT) and histologic analysis. Methods:Enhanced-depth imaging-OCT images from 25 rhesus macaque and 30 human eyes were evaluated for choriocapillaris and choroidal-scle...

journal_title：Investigative ophthalmology & visual science

authors： Yiu G,Vuong VS,Oltjen S,Cunefare D,Farsiu S,Garzel L,Roberts J,Thomasy SM

更新日期：2016-10-01 00:00:00

abstract：PURPOSE:Polypoidal choroidal vasculopathy (PCV) contains aneurismal morphologic and histopathologic feature and it is considered to be a possible distinct entity from neovascular age-related macular degeneration (AMD). In this study, the association of identified risk variants for intracranial aneurysm on chromosome 9p...

journal_title：Investigative ophthalmology & visual science

authors： Zhang X,Wen F,Zuo C,Li M,Chen H,Wu K

更新日期：2011-10-17 00:00:00

abstract：PURPOSE:The aim of this study was to investigate the repeatability of manual measurements of choroidal thickness in healthy subjects imaged on spectral domain optical coherence tomography (OCT) using the enhanced depth imaging (EDI) technique. METHODS:Fifty consecutive, healthy, young, adult volunteers with no known e...

journal_title：Investigative ophthalmology & visual science

authors： Rahman W,Chen FK,Yeoh J,Patel P,Tufail A,Da Cruz L

更新日期：2011-04-08 00:00:00

abstract：PURPOSE:To determine whether dexamethasone (DEX)-induced ocular hypertension (OHT) in mice mimics the hallmarks of steroid-induced glaucoma (SIG) in humans, including reduced conventional outflow facility (C), increased extracellular matrix (ECM), and myofibroblasts within the outflow pathway. METHODS:Osmotic mini-pum...

journal_title：Investigative ophthalmology & visual science

authors： Overby DR,Bertrand J,Tektas OY,Boussommier-Calleja A,Schicht M,Ethier CR,Woodward DF,Stamer WD,Lütjen-Drecoll E

更新日期：2014-07-15 00:00:00

abstract：PURPOSE:Cardiovascular risk factors such as smoking, hypertension, and atherosclerosis seem to play an important role in the development of choroidal neovascularization (CNV). Recent studies have also provided evidence suggesting that choroidal and retinal blood flow is decreased in patients with AMD. On the basis of t...

journal_title：Investigative ophthalmology & visual science

authors： Boltz A,Luksch A,Wimpissinger B,Maar N,Weigert G,Frantal S,Brannath W,Garhöfer G,Ergun E,Stur M,Schmetterer L

更新日期：2010-08-01 00:00:00

abstract：PURPOSE:The primary purpose of this study was to characterize photoreceptor apoptosis in the rd mouse. Given that apoptosis is the final common pathway in many cases of retinal degeneration, the ability to retard or even arrest this process may ameliorate retinal disorders such as retinitis pigmentosa (RP). The absence...

journal_title：Investigative ophthalmology & visual science

authors： Doonan F,Donovan M,Cotter TG

更新日期：2005-10-01 00:00:00

abstract：PURPOSE:α-Crystallins are small heat shock proteins that regulate cellular damage and cell survival. Expression of the proteins of the crystallin superfamily in the retina and their role in neuronal cell survival were investigated in two animal models of diabetes and retinal neurons in culture. METHODS:Crystallin expr...

journal_title：Investigative ophthalmology & visual science

authors： Losiewicz MK,Fort PE

更新日期：2011-08-24 00:00:00

abstract：PURPOSE:Keratoconus is a progressive disorder of the cornea that can lead to severe visual impairment or blindness. Although several genomic regions have been linked to rare familial forms of keratoconus, no genes have yet been definitively identified for common forms of the disease. METHODS:Two genome-wide associatio...

journal_title：Investigative ophthalmology & visual science

authors： Burdon KP,Macgregor S,Bykhovskaya Y,Javadiyan S,Li X,Laurie KJ,Muszynska D,Lindsay R,Lechner J,Haritunians T,Henders AK,Dash D,Siscovick D,Anand S,Aldave A,Coster DJ,Szczotka-Flynn L,Mills RA,Iyengar SK,Taylor KD,

更新日期：2011-10-31 00:00:00

abstract：:To assess whether prostaglandins contribute to the control of basal retinal and choroidal hemodynamics, retinal (RBF) and choroidal blood flow (ChBF) were measured by a microsphere technique in 1- to 4-day-old pigs before and after (at 20 and 60 min) administration of indomethacin (0.3 mg/kg, n = 6 or 10 mg/kg, n = 5)...

journal_title：Investigative ophthalmology & visual science

authors： Parys-Van Ginderdeuren R,Malcolm D,Varma DR,Aranda JV,Chemtob S

更新日期：1992-11-01 00:00:00

abstract：:The irides of albino guinea pigs were photographed, and the iris arteriolar diameters were measured with the animal breathing room air, 10% O2/90% N2, or 100% O2. The iris arterioles constrict significantly in hyperoxia and dilate in hypoxia. The average constriction in 100% O2 was 27% +/- 8%, and the average dilatati...

journal_title：Investigative ophthalmology & visual science

authors： Stefansson E,Shelton RA,Landers MB 3rd,Walsh AW,Wolbarsht ML

更新日期：1983-06-01 00:00:00

abstract：PURPOSE:The purpose of the present study was to investigate metabolic changes in different compartments of the rat lens (anterior, nuclear, posterior, and equatorial) after exposure to an acute double threshold dose of ultraviolet-B radiation (UVR-B) by using high-resolution magic angle spinning (HR-MAS) (1)H nuclear m...

journal_title：Investigative ophthalmology & visual science

authors： Tessem MB,Bathen TF,Löfgren S,Saether O,Mody V,Meyer L,Dong X,Söderberg PG,Midelfart A

更新日期：2006-12-01 00:00:00

abstract：PURPOSE:To determine if limited proteolysis of beta-crystallins is associated with insolubilization of proteins in rats lens during maturation and to test if the protease, calpain II, is involved. METHODS:Soluble and insoluble lens proteins from 4-day-old to 4-month-old rat lens cortexes and nuclei were separated by t...

journal_title：Investigative ophthalmology & visual science

authors： David LL,Azuma M,Shearer TR

更新日期：1994-03-01 00:00:00

abstract：:The entoptic phenomenon by which one can observe leukocytes flowing in one's own parafoveal capillaries has been used to study the effect of changes in perfusion pressure on blood flow. Our measurements in humans with normal ocular fundi indicate that the retinal circulation of the parafovea is autoregulated in relati...

journal_title：Investigative ophthalmology & visual science

authors： Riva CE,Loebl M

更新日期：1977-06-01 00:00:00

abstract：:Bovine corneal endothelial (BCE) cells in culture demonstrated 86Rb+ uptake which was mostly ouabain-sensitive with some (15 to 50%) ouabain-insensitive uptake that was dependent on the presence of bicarbonate in the incubation medium. Bovine smooth muscle (SM) cells demonstrated ouabain-sensitive 86Rb+ uptake but the...

journal_title：Investigative ophthalmology & visual science

authors： Savion N,Farzame N,Berlin HB

更新日期：1989-04-01 00:00:00

abstract：PURPOSE:The corneal epithelium provides a barrier that is both important for corneal homeostasis and dependent on tight junctions (TJs) between adjacent epithelial cells. The authors examined the effects of tumor necrosis factor-alpha (TNF-alpha), a proinflammatory cytokine, on barrier function and the expression of TJ...

journal_title：Investigative ophthalmology & visual science

authors： Kimura K,Teranishi S,Fukuda K,Kawamoto K,Nishida T

更新日期：2008-02-01 00:00:00

abstract：:A method of analysing fluorescein angiograms that yields a parameter of intraocular blood flow designated as the fluorescein appearance rate is presented. The appearance rate was decreased in those eyes in which intraocular pressure (Pi) was found to be increased. The appearance rate was also decreased in the two case...

journal_title：Investigative ophthalmology & visual science

authors： Moses RA

更新日期：1983-03-01 00:00:00

abstract：Purpose:Patients with diabetes mellitus are reported to have ocular surface defects, impaired ocular surface barrier function, and a higher incidence of corneal and conjunctival infections. Tight junctions are critical for ocular surface barrier function. The present study was designed to investigate the effect of high...

journal_title：Investigative ophthalmology & visual science

authors： Alfuraih S,Barbarino A,Ross C,Shamloo K,Jhanji V,Zhang M,Sharma A

更新日期：2020-09-01 00:00:00

abstract：:Visual fixation of a small, stationary target was measured in 12 young observers (mean age = 22 yr) and in 12 older observers (mean age = 70 yr). The two groups' fixation behavior did not differ on various dimensions of fixation stability: mean fixation area, intra-subject variability, or changes in fixation over succ...

journal_title：Investigative ophthalmology & visual science

authors： Kosnik W,Fikre J,Sekuler R

更新日期：1986-12-01 00:00:00

abstract：PURPOSE:To investigate lateral geniculate nucleus (LGN) volume of primary open-angle glaucoma (POAG) patients compared with age- and sex-matched controls using ultra-high field 7.0-T magnetic resonance imaging (MRI). METHODS:The study included 18 patients with POAG and 18 age- and sex-matched healthy volunteers. All s...

journal_title：Investigative ophthalmology & visual science

authors： Lee JY,Jeong HJ,Lee JH,Kim YJ,Kim EY,Kim YY,Ryu T,Cho ZH,Kim YB

更新日期：2014-04-10 00:00:00

abstract：:As part of an ophthalmic and anthropometric survey of two free-breeding rhesus monkey (Macaca mulatta) populations, intraocular pressure (IOP) of 114 animals was measured under ketamine catalepsia with the use of a floating-tip pneumatonometer. The mean IOP of the 102 animals included in the main analyses was 14.9 +/-...

journal_title：Investigative ophthalmology & visual science

authors： Bito LZ,Merritt SQ,DeRousseau CJ

更新日期：1979-08-01 00:00:00

abstract：PURPOSE:To localize and identify the gene and mutations causing autosomal recessive retinitis pigmentosa in three consanguineous Pakistani families. METHODS:Blood samples were collected and DNA was extracted. A genome-wide scan was performed by using 382 polymorphic microsatellite markers on genomic DNA from affected ...

journal_title：Investigative ophthalmology & visual science

authors： Riazuddin SA,Zulfiqar F,Zhang Q,Sergeev YV,Qazi ZA,Husnain T,Caruso R,Riazuddin S,Sieving PA,Hejtmancik JF

更新日期：2005-07-01 00:00:00

abstract：PURPOSE:Sorsby fundus dystrophy (SFD) is a rare, late-onset macular dystrophy caused by mutations in the tissue inhibitor of metalloproteinases-3 (TIMP3) gene. The known mutations introduce potentially unpaired cysteine residues in the C terminus of the protein and result in the formation of higher-molecular-weight pro...

journal_title：Investigative ophthalmology & visual science

authors： Weber BH,Lin B,White K,Kohler K,Soboleva G,Herterich S,Seeliger MW,Jaissle GB,Grimm C,Reme C,Wenzel A,Asan E,Schrewe H

更新日期：2002-08-01 00:00:00

abstract：Purpose:IFT81, a core component of the IFT-B complex, involved in the bidirectional transport of ciliary proteins, has been recently implicated in syndromic ciliopathies. However, none of the IFT-B core complex proteins have been associated with nonsyndromic retinal dystrophies. Given the importance of ciliary transpor...

journal_title：Investigative ophthalmology & visual science

authors： Dharmat R,Liu W,Ge Z,Sun Z,Yang L,Li Y,Wang K,Thomas K,Sui R,Chen R

更新日期：2017-05-01 00:00:00

abstract：PURPOSE:To determine how the different stages of retinal processing change after photoreceptor degeneration in rabbits carrying the Pro347Leu rhodopsin mutation (Tg rabbits). METHODS:Cone electroretinograms (ERGs) were elicited by 150-ms duration stimuli from 13 Tg rabbits at 12 and 24 weeks of age. The ERG recordings...

journal_title：Investigative ophthalmology & visual science

authors： Nishimura T,Machida S,Kondo M,Terasaki H,Yokoyama D,Kurosaka D

更新日期：2011-09-29 00:00:00

abstract：PURPOSE:To measure interspecies thickness differences in the central anterior and posterior capsules of postmortem crystalline lenses, by a technique that maintains the anatomic integrity of the lens. METHODS:Central capsule thickness was measured with a custom-built, noncontact optical system, using a focus detection...

journal_title：Investigative ophthalmology & visual science

authors： Ziebarth NM,Manns F,Uhlhorn SR,Venkatraman AS,Parel JM

更新日期：2005-05-01 00:00:00

abstract：PURPOSE:To test the effect of valacyclovir alone and with aspirin on the asymptomatic shedding of HSV-1 DNA in tears and saliva of healthy individuals. METHOD. The subjects (n = 45) were randomized into three groups without regard to age, sex, or race. Group 1 (n = 14) received the placebo, group 2 (n = 15) received a ...

journal_title：Investigative ophthalmology & visual science

authors： Kumar M,Hill JM,Clement C,Varnell ED,Thompson HW,Kaufman HE

更新日期：2009-12-01 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

authors： Chan T,Payor S,Holden BA

更新日期：1983-10-01 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

authors： Khu PM,Kashiwagi T

更新日期：1993-01-01 00:00:00