Learn More
Six types of setae and one type of cuticular depression were examined on the lateral antennule of the spiny lobster Panulirus interruptus using scanning electron microscopy. The organization and ultrastructure of the innervation of the most numerous setal type, the aesthetasc, were investigated using light-and transmission electron microscopy. Each(More)
Retinal detachment, the separation of the neural retina from the retinal pigmented epithelium, starts a cascade of events that results in cellular changes throughout the retina. While the degeneration of the light sensitive photoreceptor outer segments is clearly an important event, there are many other cellular changes that have the potential to(More)
PURPOSE To study the responses of horizontal cells and rod bipolar cells, the second-order neurons in the retina, to the degeneration induced by experimental retinal detachment. METHODS Retinas from the eyes of domestic cats were examined 1, 3, 7, and 28 days after detachment using immunocytochemical and electron microscopic analyses. Retinal sections(More)
Golgi techniques have been applied to post mortem specimens of human retina. Analysis was possible on 150 human retinas processed and viewed by light microscopy as wholemounts. Camera lucida drawings and photography were used to classify the impregnated neurons into 3 types of horizontal cell, 9 types of bipolar cell, 24 basic types of amacrine cell, a(More)
The organization of the rod spherule and of the horizontal cell axon terminals within the invagination of the rod spherule in the human retina was examined in serial sections by electron microscopy. Twenty-one rod spherules were reconstructed in this study. Axon terminal processes of type I horizontal cells consistently make one or two small punctate(More)
PURPOSE Expressions of certain macromolecules are altered by experimental retinal detachment in the cat. Related alterations in micromolecular signatures of neurons, Müller cells, and the retinal pigment epithelium (RPE) were investigated. METHODS High-performance immunochemical mapping, image registration, and quantitative pattern recognition were(More)
PURPOSE To establish a nomogram of amino acid signatures in normal neurons, glia, and retinal pigment epithelium (RPE) of the cat retina, guided by the premise that micromolecular signatures reflect cellular identity and metabolic integrity. The long-range objective was to provide techniques to detect subtle aberrations in cellular metabolism engendered by(More)
PURPOSE To determine the effects of reattachment on the molecular and cellular events initiated by a retinal detachment lasting 1 hour or 1 day. METHODS Experimental retinal detachments were created in the right eyes of nine cats. Reattachments were performed 1 hour (n = 3) or 1 day (n = 3) after the detachment, and the animals were killed 3 days after(More)
Using serial sections and electron microscopy, we have found several morphological types of synapses within the outer plexiform layer (OPL) of the human retina. The most conspicuous of these is described in this paper. They have a unique morphology and form synapses with rod and cone bipolar cells in the OPL and onto bipolar and amacrine cell bodies in the(More)
The firefly larva has a pair of light organs consisting of a layer of interdigitating, light emitting cells, covered dorsally with a layer of opaque, white cells. Each light organ is ventilated by one large and several smaller tracheal branches and is innervated by a branch of the segmental nerve containing two axons. These axons branch profusely in the(More)