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macular degeneration/proline
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Leucine 7-proline 7 polymorphism in the signal peptide of neuropeptide Y is not a risk factor for exudative age-related macular degeneration.
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OBJECTIVE
Because of the regulatory role of neuropeptide Y (NPY) in angiogenesis, we set out to determine the presence of the leucine 7-proline 7 (Leu7Pro) polymorphism in exudative age-related macular degeneration (AMD) patients and to analyse its implications.
METHODS
Genotype analysis of the
Clinical features of a previously undescribed codon 216 (proline to serine) mutation in the peripherin/retinal degeneration slow gene in autosomal dominant retinitis pigmentosa.
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BACKGROUND
Mutations in the human peripherin/retinal degeneration slow (rds) gene have been found in patients with macular dystrophies as well as in those with autosomal dominant retinitis pigmentosa. The authors studied the clinical features in members of two families with autosomal dominant
Silibinin inhibits VEGF secretion and age-related macular degeneration in a hypoxia-dependent manner through the PI-3 kinase/Akt/mTOR pathway.
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OBJECTIVE
Hypoxia-mediated neovascularization plays an important role in age-related macular degeneration (AMD). There are few animal models or effective treatments for AMD. Here, we investigated the effects of the flavonoid silibinin on hypoxia-induced angiogenesis in a rat AMD
Genetic identification and molecular modeling characterization reveal a novel PROM1 mutation in Stargardt4-like macular dystrophy.
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Stargardt disease-4 (STGD4) is an autosomal dominant complex, genetically heterogeneous macular degeneration/dystrophy (MD) disorder. In this paper, we used targeted next generation sequencing and multiple molecular dynamics analyses to identify and characterize a disease-causing genetic variant in
A Plasma Metabolomic Profiling of Exudative Age-Related Macular Degeneration Showing Carnosine and Mitochondrial Deficiencies.
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To determine the plasma metabolomic profile of exudative age-related macular degeneration (AMD), we performed a targeted metabolomics study on the plasma from patients (n = 40, mean age = 81.1) compared to an age- and sex-matched control group (n = 40, mean age = 81.8). All included
Proline mediates metabolic communication between retinal pigment epithelial cells and the retina.
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The retinal pigment epithelium (RPE) is a monolayer of pigmented cells between the choroid and the retina. RPE dysfunction underlies many retinal degenerative diseases, including age-related macular degeneration, the leading cause of age-related blindness. To perform its various functions in
Effects of an antioxidant protective topical formulation on eye exposed to ultraviolet-irradiation: a study in rabbit animal model.
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Ultraviolet-radiation exerts a well-known role in the development of various ocular diseases and may contribute to the progress of age-related macular degeneration. Therefore, the use of compounds able to protect the eyes from UV-induced cellular damage is challenging. The aim of this study has been
Biochemical and ultrastructural changes in rabbit sclera after treatment with 7-methylxanthine, theobromine, acetazolamide, or L-ornithine.
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OBJECTIVE
To examine a possible effect of 7-methylxanthine, theobromine, acetazolamide, or L-ornithine on the ultrastructure and biochemical composition of rabbit sclera.
METHODS
Groups of pigmented rabbits, six in each group, were dosed during 10 weeks with one of the substances under
A peripherin/retinal degeneration slow mutation (Pro-210-Arg) associated with macular and peripheral retinal degeneration.
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BACKGROUND
Mutations in the peripherin/retinal degeneration slow (RDS) gene have been identified in patients with retinitis pigmentosa and pattern macular dystrophy. The authors initially examined a large family affected with both peripheral and macular degeneration, inherited as an autosomal
[The study of RDS gene mutation and clinical phenotype in a family with primary retinitis pigmentosa].
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OBJECTIVE
To investigate retinal degeneration slow (RDS) gene mutation in a Chinese family with primary retinitis pigmentosa (RP) and the association of the mutation with clinical phenotypes and to explore the pathogenesis of RP.
METHODS
Blood DNA from 2 patients in the same family with RP and 2
Autoradiographic studies of aged primate macular retinal pigment epithelium.
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The authors used 35S-sulfate and 3H-proline to trace labeled molecules in autoradiograms of aged monkey and human macular retina to detect the synthesis of extracellular matrix (ECM) components by retinal pigment epithelial (RPE) cells. Quantitative analysis of silver grains 6 hr and 3 d after
Quantification of the vascular endothelial growth factor with a bioluminescence resonance energy transfer (BRET) based single molecule biosensor.
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Neovascular pathologies in the eye like age-related macular degeneration (AMD), the diabetic retinopathie (DR), retinopathie of prematurity (ROP) or the retinal vein occlusion (RVO) are caused through a hypoxia induced upregulation of the vascular endothelial growth factor (VEGF). So far a
Effect of high glucose concentration on corneal collagen biosynthesis.
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The effect of high glucose concentration (3 g/l) on bovine corneal total protein and collagen biosynthesis was studied, using 3H-proline incorporation in explant cultures with protein and collagen determinations. The high glucose concentration increased the incorporation of 3H-proline in total
Discovery of Highly Potent and Selective Small-Molecule Reversible Factor D Inhibitors Demonstrating Alternative Complement Pathway Inhibition in Vivo.
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The highly specific S1 serine protease factor D (FD) plays a central role in the amplification of the complement alternative pathway (AP) of the innate immune system. Genetic associations in humans have implicated AP activation in age-related macular degeneration (AMD), and AP dysfunction
AAV-mediated expression of human PRELP inhibits complement activation, choroidal neovascularization and deposition of membrane attack complex in mice.
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Age-related macular degeneration (AMD) is the leading cause of blindness among the elderly. Approximately 50% of AMD patients have a polymorphism in the negative regulator of complement known as Factor H. Individuals homozygous for a Y402H polymorphism in Factor H have elevated levels of membrane
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