Results 221 to 230 of about 60,940 (264)
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The autoregulation of retinal ganglion cell number
Development, 2001ABSTRACT The development of the nervous system is dependent on a complex set of signals whose precise co-ordination ensures that the correct number of neurones are generated. This regulation is achieved through a variety of cues that influence both the generation and the maintenance of neurones during development.
González-Hoyuela, M. +2 more
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Hyperacuity in Cat Retinal Ganglion Cells
Science, 1986Cat X retinal ganglion cells that can resolve sine gratings of only 2.5 cycles per degree can nevertheless respond reliably to displacements of a grating of approximately 1 minute of arc. This is a form of hyperacuity comparable in magnitude to that seen in human vision.
R, Shapley, J, Victor
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Intrinsically Photosensitive Retinal Ganglion Cells
Journal of Neuro-Ophthalmology, 2007The recent discovery of melanopsin-expressing retinal ganglion cells that mediate the pupil light reflex has provided new insights into how the pupil responds to different properties of light. These ganglion cells are unique in their ability to transduce light into electrical energy.
Aki, Kawasaki, Randy H, Kardon
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Retinal Ganglion Cell Axon Fractionation
2023Retinal ganglion cell (RGC) axon regeneration in mammals can be stimulated through gene knockouts, pharmacological agents, and biophysical stimulation. Here we present a fractionation method to isolate regenerating RGC axons for downstream analysis using immunomagnetic separation of cholera toxin subunit B (CTB)-bound RGC axons.
Sean D, Meehan, Sanjoy, Bhattacharya
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Activation of autophagy in retinal ganglion cells
Journal of Neuroscience Research, 2008AbstractAutophagy has been shown to be activated in neuronal cells in response to injury and suggested to have a cell‐protective role in neurodegenerative diseases. In this study, we investigated the activation of autophagy in retinal ganglion cells (RGCs) following optic nerve transection (ONT) and evaluated its effect on RGC survival.
Seok Hwan, Kim +7 more
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The responses of the retinal ganglion cells of the frog
Vision Research, 1975Abstract Three groupsofunitswere recorded from theretinaof Rana esculenta . These were: (a)Units which responded to a square wave modulated light stimulus and these were of three types: ON units, ON-OFF units and OFF units. Stimulus-response curves for both a stimulating central spot and an annulus were constructed and the effects of increasing ...
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Topography of pig retinal ganglion cells
Journal of Comparative Neurology, 2005AbstractIn the present work we analyzed the distribution of retinal ganglion cells (RGCs) in the pig retina. RGCs were retrogradely labeled in vivo by injecting Fluoro‐Gold into the optic nerve. RGC density and the distribution of RGCs in terms of soma size were analyzed. Different regions of the porcine retina were identified following analysis of the
Mónica, Garcá +3 more
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Feature Detection by Retinal Ganglion Cells
Annual Review of Vision Science, 2022Retinal circuits transform the pixel representation of photoreceptors into the feature representations of ganglion cells, whose axons transmit these representations to the brain. Functional, morphological, and transcriptomic surveys have identified more than 40 retinal ganglion cell (RGC) types in mice.
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Retinal Ganglion Cells and Neuroprotection for Glaucoma
Survey of Ophthalmology, 2003Neuroprotection is a therapeutic strategy directed at keeping retinal ganglion cells (RGCs) alive and functional. This article discusses three commonly asked questions about neuroprotection and attempts to answer them in the context of our current understanding of the pathophysiology of RGC loss in glaucomatous optic neuropathy.
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Peptides influence retinal ganglion cells
Neuroscience Letters, 1981Neurotensin, substance P and (D-Ala2, Met5)-enkephalinamide were iontophoresed onto ganglion cells of the amphibian retina. Substance P and neurotensin were found to be excitatory while (D-Ala2, Met5)-enkephalinamide suppressed all types of ganglion cells. These findings are consistent with a functional role for peptides in the vertebrate retina.
E, Dick, R F, Miller
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