Response of human retinal blood flow to light and dark.

abstract：PURPOSE:Subretinal drusenoid deposits (SDD) have been associated with the progression to late age-related macular degeneration (AMD). To determine whether SDD in eyes in normal macular health increases risk for early AMD, this study examined the association between presence of SDD at baseline in a cohort of older adult...

journal_title：Investigative ophthalmology & visual science

authors： Huisingh C,McGwin G Jr,Neely D,Zarubina A,Clark M,Zhang Y,Curcio CA,Owsley C

更新日期：2016-02-01 00:00:00

abstract：Purpose:Activation of proteolytic enzymes, calpains and caspases, have been observed in many models of retinal disease. We previously demonstrated calpain activation in monkey retinal explants cultured under hypoxia. However, cellular responses are often species-specific. The purpose of the present study was to determi...

journal_title：Investigative ophthalmology & visual science

authors： Kobayashi-Otsugu M,Orihara K,Nakajima E,Shearer TR,Azuma M

更新日期：2020-11-02 00:00:00

abstract：PURPOSE:To investigate the role of the gap junction protein connexin43 (Cx43), which is predominantly expressed in lens epithelial cells in the control of lens development and organization. METHODS:Newborn mice in which the Cx43 gene was disrupted by homologous recombination were used. Lenses from Cx43 (-/-) mice and ...

journal_title：Investigative ophthalmology & visual science

authors： Gao Y,Spray DC

更新日期：1998-06-01 00:00:00

abstract：:Adaptation to steady background lights has been investigated in pcd/pcd mice, a mutant strain with retinal degeneration. The hyperbolic stimulus/response functions of the scotopic b-wave of the electroretinogram show progressive changes. For the dark-adapted eyes the decrease in log sensitivity between ages 1 and 12 m...

journal_title：Investigative ophthalmology & visual science

authors： Fulton AB,Manning KA,Baker BN,Schukar SE,Bailey CJ

更新日期：1982-03-01 00:00:00

abstract：PURPOSE:To characterize the spectrum of mutations in the OPA1 gene in a large international panel of patients with autosomal dominant optic atrophy (adOA), to improve understanding of the range of functional deficits attributable to sequence variants in this gene, and to assess any genotype-phenotype correlations. MET...

journal_title：Investigative ophthalmology & visual science

authors： Thiselton DL,Alexander C,Taanman JW,Brooks S,Rosenberg T,Eiberg H,Andreasson S,Van Regemorter N,Munier FL,Moore AT,Bhattacharya SS,Votruba M

更新日期：2002-06-01 00:00:00

abstract：PURPOSE:To determine the effect of age on the thickness of individual retinal layers, measured with spectral-domain optical coherence tomography (SD-OCT), in a population of healthy Caucasians. METHODS:One hundred and twenty subjects with an age ranging between 18 and 81 years were examined with SD-OCT. Mean layer thi...

journal_title：Investigative ophthalmology & visual science

authors： Demirkaya N,van Dijk HW,van Schuppen SM,Abràmoff MD,Garvin MK,Sonka M,Schlingemann RO,Verbraak FD

更新日期：2013-07-22 00:00:00

abstract：:The retinas of six pigmented rabbits (12 eyes) were irradiated with a cw-Nd:YAG laser using two different pulse forms, in conjunction with a constant pulse duration of 200 msec and a retinal focus diameter of 200 microns. The first pulse form (a) was characterized by an initial transient, lasting 15-20 msec, with a pe...

journal_title：Investigative ophthalmology & visual science

authors： van der Zypen E,Fankhauser F,Kwasniewska S,England C

更新日期：1990-01-01 00:00:00

abstract：PURPOSE:The sense of vision in humans is robust, and visual flickering is rarely experienced. To investigate this mechanism, electrophysiological and molecular biological techniques were used on human cone and rod photoreceptors. METHODS:Voltage-gated currents were recorded using the patch-clamp technique on isolated ...

journal_title：Investigative ophthalmology & visual science

authors： Kawai F,Horiguchi M,Ichinose H,Ohkuma M,Isobe R,Miyachi E

更新日期：2005-01-01 00:00:00

abstract：PURPOSE:Müller glia have multiple functions in the retina, including synthesis of neurotrophic factors, uptake and metabolism of neurotransmitters, spatial buffering of ions, maintenance of the blood-retinal barrier, and response to injury. A population of Müller glia has some stem cell-like characteristics both in viv...

journal_title：Investigative ophthalmology & visual science

authors： Otteson DC,Phillips MJ

更新日期：2010-11-01 00:00:00

abstract：PURPOSE:The betaB2-crystallin gene (Crybb2) is expressed at an increasing level in the postnatal lens cortex. It has been assumed that the gene functions as structural protein, although this has not been directly tested. Here the in vivo functions of betaB2-crystallin are examined via the generation of mice with a targ...

journal_title：Investigative ophthalmology & visual science

authors： Zhang J,Li J,Huang C,Xue L,Peng Y,Fu Q,Gao L,Zhang J,Li W

更新日期：2008-12-01 00:00:00

abstract：PURPOSE:To examine gain, speed, and temporal characteristics of initial and closed-loop components of vergence eye movements in young and elderly subjects. METHODS:Vergence eye movements in 13 elderly and 10 young adults were examined. A table with light-emitting diodes was used to elicit vergence starting from near (...

journal_title：Investigative ophthalmology & visual science

authors： Yang Q,Le TT,Kapoula Z

更新日期：2009-03-01 00:00:00

abstract：PURPOSE:Age and advanced disease in the fellow eye are the two most important risk factors for age-related macular degeneration (AMD). In this study, the authors investigated the relationship between these variables and the optical density of macular pigment (MP) in a group of subjects from a northern European populati...

journal_title：Investigative ophthalmology & visual science

authors： Beatty S,Murray IJ,Henson DB,Carden D,Koh H,Boulton ME

更新日期：2001-02-01 00:00:00

abstract：:The metabolism of the polyunsaturated fatty acid, arachidonic acid (20:4, n-6) in rabbit cornea with varying severities of herpes simplex viral infection was investigated. The results indicate an active synthesis of the lipoxygenase and cyclooxygenase reaction products of arachidonic acid in central cornea and corneal...

journal_title：Investigative ophthalmology & visual science

authors： Birkle DL,Sanitato JJ,Kaufman HE,Bazan NG

更新日期：1986-10-01 00:00:00

abstract：PURPOSE:To assess the retinal macrophage response to cannulation of the anterior chamber (AC) and acute elevation of intraocular pressure (IOP) in adult mice. METHODS:Eyes from 12-month-old C57BL/6J WT mice were subject to IOP increase (50 mm Hg for 30 minutes) by direct cannulation of the AC. Fellow eyes were either ...

journal_title：Investigative ophthalmology & visual science

authors： Kezic JM,Chrysostomou V,Trounce IA,McMenamin PG,Crowston JG

更新日期：2013-04-30 00:00:00

abstract：PURPOSE:To investigate the role of N-cadherin and hepatocyte growth factor (HGF) in the invasion of collagen type I by human retinal pigment epithelial (RPE) cells. METHODS:RPE sheets from eight human eyes were used for characterization through Western blot analysis of the expression of cadherin in total lysates or af...

journal_title：Investigative ophthalmology & visual science

authors： Van Aken EH,De Wever O,Van Hoorde L,Bruyneel E,De Laey JJ,Mareel MM

更新日期：2003-02-01 00:00:00

abstract：PURPOSE:Platelet-derived growth factor (PDGF) is an important stimulatory factor for proliferative retinopathies. Expression of PDGF-B in the retinas of transgenic mice (hemizygous rho/PDGF-B mice) results in rapid-onset retinal detachment caused by proliferation of glial cells, endothelial cells, and pericytes, wherea...

journal_title：Investigative ophthalmology & visual science

authors： Saishin Y,Saishin Y,Takahashi K,Seo MS,Melia M,Campochiaro PA

更新日期：2003-08-01 00:00:00

abstract：:Chinese hamster ovarian (CHO) cells in culture were used to evaluate the relative antiproliferative potential of drugs. These agents have been used to improve the clinical response after glaucoma filtering surgery. The following drugs were evaluated: 5-fluorouracil (5-FU) as the benchmark, 5-fluorouridine (FUR), 5-flu...

journal_title：Investigative ophthalmology & visual science

authors： Senderoff RI,Weber PA,Smith DR,Sokoloski TD

更新日期：1990-12-01 00:00:00

abstract：Purpose:A recent proposal for why glaucomatous perimetric sensitivities of approximately 15 to 19 dB or less are unreliable involves the idea that the neural response of normal retinal ganglion cells saturates for intense perimetric stimuli. A predicted consequence of this saturation is that the neural response for two...

journal_title：Investigative ophthalmology & visual science

authors： Anderson AJ,McKendrick AM,Turpin A

更新日期：2016-11-01 00:00:00

abstract：Purpose:To investigate brain white matter pathways using magnetic resonance diffusion tensor imaging (DTI) and correlate the findings with developmental outcomes at 18 months of corrected age in preterm infants with and without retinopathy of prematurity (ROP). Methods:In this prospective cohort study, probabilistic m...

journal_title：Investigative ophthalmology & visual science

authors： Ahn SJ,Lee JY,Lee JY,Lee YJ,Lee JM,Lee BR,Kim J,Lee HJ

更新日期：2021-02-01 00:00:00

abstract：PURPOSE:To elucidate the spatial distribution of inactivation of lactate dehydrogenase (LDH) in ultraviolet-B radiation (UVR-B)-exposed eyes. To determine the in vivo penetration depth of UVR-B in the lens. METHODS:LDH activity in cornea and lens was investigated with an enzyme histochemical technique. Thirty rats wer...

journal_title：Investigative ophthalmology & visual science

authors： Löfgren S,Söderberg PG

更新日期：2001-07-01 00:00:00

abstract：PURPOSE:Early visual defects in degenerative diseases such as retinitis pigmentosa (RP) may arise from phased remodeling of the neural retina. The authors sought to explore the functional expression of ionotropic (iGluR) and group 3, type 6 metabotropic (mGluR6) glutamate receptors in late-stage photoreceptor degenerat...

journal_title：Investigative ophthalmology & visual science

authors： Marc RE,Jones BW,Anderson JR,Kinard K,Marshak DW,Wilson JH,Wensel T,Lucas RJ

更新日期：2007-07-01 00:00:00

abstract：:The relationship between intraocular and systemic blood pressures was investigated in a prospective study of 572 middle-aged men. There was no consistent relationship between intraocular pressure at first visit and age. Subjects with an intraocular pressure greater than 20 mm Hg had a significantly higher systolic blo...

journal_title：Investigative ophthalmology & visual science

authors： McLeod SD,West SK,Quigley HA,Fozard JL

更新日期：1990-11-01 00:00:00

abstract：PURPOSE:Leber congenital amaurosis (LCA) is an inherited retinal disease that causes early-onset severe visual impairment. To evaluate the mutation spectrum in the Chinese population, we performed a mutation screen in 145 Chinese LCA families. METHODS:First, we performed direct Sanger sequencing of 7 LCA disease genes...

journal_title：Investigative ophthalmology & visual science

authors： Wang H,Wang X,Zou X,Xu S,Li H,Soens ZT,Wang K,Li Y,Dong F,Chen R,Sui R

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:The aim of the present study was to use an in vivo model of retinal excitotoxicity to investigate the neuroprotective effect of somatostatin (SRIF)-ergic agents. METHODS:Adult Sprague-Dawley rats (weight range, 250-300 g) intravitreally received (RS)-alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid hyd...

journal_title：Investigative ophthalmology & visual science

authors： Kiagiadaki F,Thermos K

更新日期：2008-07-01 00:00:00

abstract：:Cell membranes from the human lens contain two major polypeptides with molecular weights near 26,000 and 22,000. These two species have been isolated in a highly purified state and purified by means of an antiserum against the 26,000 dalton membrane polypeptide from bovine lens. Immunochemical data are presented that ...

journal_title：Investigative ophthalmology & visual science

authors： Zigler JS Jr,Horwitz J

更新日期：1981-07-01 00:00:00

abstract：:Male albino rats, injected intravenously or intracerebroventricularly with delta 1-tetrahydrocannabinol (THC), develop mudriasis. The median effective dose of the intravenous administration group was 5 mg/kg THC, whereas that for the intracerebroventricular route was 150 microgram/kg THC. Sympathectomy significantly d...

journal_title：Investigative ophthalmology & visual science

authors： Korczyn AD,Eshel Y

更新日期：1982-03-01 00:00:00

abstract：PURPOSE:To image and analyze anatomical differences at the temporal raphe between normal and glaucomatous eyes using adaptive optics scanning laser ophthalmoscopy (AOSLO) and optical coherence tomography (OCT), and to relate these differences to visual field measurements. METHODS:Nine glaucomatous eyes of 9 patients (...

journal_title：Investigative ophthalmology & visual science

authors： Huang G,Luo T,Gast TJ,Burns SA,Malinovsky VE,Swanson WH

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:To examine the expression pattern and roles of Sonic hedgehog (Shh) in healing corneal epithelium. METHODS:Immunofluorescent staining and Western blot analysis were used to detect Shh, patched 1 (Ptc 1) receptors, and Gli transcription factors in corneal epithelium of Wistar rats (n = 44) at various intervals ...

journal_title：Investigative ophthalmology & visual science

authors： Saika S,Muragaki Y,Okada Y,Miyamoto T,Ohnishi Y,Ooshima A,Kao WW

更新日期：2004-08-01 00:00:00

abstract：PURPOSE:The purpose of this study was to demonstrate the efficacy of the digital fluoroscopy system (DFS) for the in vivo assessment of pharmacologically induced posterior vitreous detachment (PVD) and vitreous liquefaction in a rabbit model. METHODS:Twenty eyes from 10 New Zealand white rabbits were divided into 5 gr...

journal_title：Investigative ophthalmology & visual science

authors： Bae JH,Park HS,Kim JM,Lee BR,Lee SC,Tandogan T,Auffarth GU,Koss MJ,Choi CY

更新日期：2015-07-01 00:00:00

abstract：Purpose:Pathologic myopia described as myopia accompanied by severe deformation of the eye besides excessive elongation of eye, is usually a genetic heterogeneous disorder characterized by extreme, familial, early-onset vision loss. However, the exact pathogenesis of pathologic myopia remains unclear. In this study, we...

journal_title：Investigative ophthalmology & visual science

authors： Wang B,Liu Y,Chen S,Wu Y,Lin S,Duan Y,Zheng K,Zhang L,Gu X,Hong W,Shao H,Zeng X,Sun B,Duan S

更新日期：2017-08-01 00:00:00