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The permeability of retinal capillaries in RCS rats with inherited retinal degeneration was investigated with horseradish peroxidase used as a tracer. Five-week-old rats showed typical degeneration of photoreceptor cells and accumulation of outer segment debris, but retinal capillaries were not permeable to peroxidase. At 10 weeks of age, capillaries in the(More)
Four acid hydrolase activities are demonstrable by light microscopy in pigment epithelial cell lysosomes of rats (Royal College of Surgeons--RCS) with inherited retinal dystrophy and in control (Fischer) rats. The enzymes include acid phosphatase, aryl sulfatase, N-acetyl-beta-glucosaminidase, and esterase activities. No marked differences are observed in(More)
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