نتایج جستجو برای: retinal pigment epithelium
تعداد نتایج: 138226 فیلتر نتایج به سال:
In several retinal degenerative diseases, including age-related macular degeneration, the retinal pigment epithelium, a highly functionalized cell monolayer, becomes dysfunctional. These retinal diseases are marked by early retinal pigment epithelium dysfunction reducing its ability to maintain a healthy retina, hence making the retinal pigment epithelium an attractive target for treatment. Cel...
Here we report multiple lines of evidence for a comprehensive model of energy metabolism in the vertebrate eye. Metabolic flux, locations of key enzymes, and our finding that glucose enters mouse and zebrafish retinas mostly through photoreceptors support a conceptually new model for retinal metabolism. In this model, glucose from the choroidal blood passes through the retinal pigment epitheliu...
Ocular masquerade syndrome was diagnosted in two patients with chronic uveitis. The patients presented non-Hodgkin's lymphoma as the final diagnosis two forms of intraocular retinal pigment epithelium involvement was seen. One case was flecks of the retinal pigment epithelium and another case was a solid retinal pigment epithelium detachment. These unusual presentations of non-Hodgkin's lymphom...
Photic maculopathy was produced in rhesus monkeys after exposure to the light of an indirect ophthalmoscope for one hour. This experimental model provided an opportunity for light and electron microscopic study of a relatively mild photic insult to the macula. During the first week, there was retinal edema with damage to the photoreceptor cells and to the retinal pigment epithelium. Beginning i...
Background: Vitiligo is a common acquired disorder characterized by depigmented cutaneous patches devoid of melanocytes. The disease carries a risk for ocular abnormalities. Few reports are available about the ocular findings and their possible association with the disease in patients with vitiligo in the literature. Methods: A total of 72 patients with previously documented cutaneous vitiligo...
Retinal detachment is the physical separation of the retina from the retinal pigment epithelium. It occurs during aging, trauma, or during a variety of retinal disorders such as age-related macular degeneration, diabetic retinopathy, retinopathy of prematurity, or as a complication following cataract surgery. This report investigates the role of fibulin 2, an extracellular component, in retinal...
PURPOSE Drusen are deposits located between the retinal pigment epithelium and Bruch's membrane in age-related maculopathy. They are believed to be photoreceptor byproducts that are incompletely metabolized by the retinal pigment epithelium. This study therefore compares the lectin histochemistry of drusen, photoreceptors, retinal pigment epithelium, and Bruch's membrane. METHODS Semithin sec...
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