منابع مشابه
Hypoplastic optic nerves and pituitary dysfunction.
Indeed, three children presenting with colitis in the first year of life had such severe, chronic inflammatory bowel disease that subtotal colectomy was eventually required. Indeed, we have emphasised2 that infantile colitis is a heterogeneous syndrome with a variety of causes that can only be identified by means of colonoscopy and multiple mucosal biopsy as well as response to dietary manipula...
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Lipofuscin accumulation has been observed in a number of neurodegenerative diseases. We recently found that autofluorescent particles also occur in the aged human optic nerve. In this study we sought to determine the nature of these particles and their correlation with aging, age-related macular degeneration (AMD) and primary open angle glaucoma (POAG). Groups of eight optic nerves from patient...
متن کاملAutomated Counting Axons in Optic Nerves using Hough Transformation
I developed an algorithm to count the number of axons in optic nerves automatically using Hough Transformation to detect axon edges. Due to the low quality of nerve images, a pre-process is required using Gaussian filter.
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While action potentials are the usual means of transmission in axons, recent work has established that decrementally conducted potentials are also utilized. Decremental conduction has been demonstrated to be the exclusive mode of transmission in certain sensory axons of vertebrates (Werblin & Dowling, 1969; Kaneko, 1967, 1970) and invertebrates (Gwilliam, 1965, Ripley, Bush & Roberts, 1968; Ioa...
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Receptor-mediated calcium signaling in axons of mouse and rat optic nerves was examined by selectively staining the axonal population with a calcium indicator. Nicotine (1-50 microM) induced an axonal calcium elevation that was eliminated when calcium was removed from the bath, suggesting that nicotine induces calcium influx into axons. The nicotine response was blocked by d-tubocurarine and me...
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ژورنال
عنوان ژورنال: The American Journal of the Medical Sciences
سال: 1844
ISSN: 0002-9629
DOI: 10.1097/00000441-184404000-00036