Results 201 to 210 of about 39,677 (234)
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Two types of bipolar cells in the chick retinal development
Experientia, 1975Two types of bipolar cells are identified in the chick embryonic retina. They can be distinguished by their cytoplasmic organelles.
D T, Yew, D B, Meyer
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Properties of the cGMP-activated channel of retinal on-bipolar cells
Proceedings of the Royal Society of London. Series B: Biological Sciences, 1992Whole-cell patch-clamp recordings were obtained from on-bipolar cells in, or isolated from, retinal slices prepared from dogfish retina. The properties of the cGMP-activated conductance of on-bipolar cells were compared with that of rod photoreceptors. The on-bipolar cell cGMP-activated channel was blocked by L-cis-diltiazem, a block which was strongly
R A, Shiells, G, Falk
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Spontaneous voltage fluctuations in retinal cones and bipolar cells
Nature, 1975TRIFONOV1 and others have suggested that vertebrate rods and cones release transmitter continuously in the dark and that the effect of light is to suppress this release by making the inside of the cell more negative. On this hypothesis the bipolar cells, which receive information from cones, should be electrically noisy in the dark, because of random ...
E J, Simon, T D, Lamb, A L, Hodgkin
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Membrane currents of retinal bipolar cells in culture
Journal of Neurophysiology, 19881. Retinal bipolar cells were isolated from white bass retinas and maintained in a cell culture preparation. Two morphological types of bipolar cells were observed in cell culture. These were labeled large- and small-bipolar cells based mainly on the size of their somata and primary dendrites. Two types of small-bipolar cells were observed.
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Desensitizing GABAC receptors on carp retinal bipolar cells
NeuroReport, 1997Bicuculline- and baclofen-insensitive GABA receptors (GABAC receptors) on bipolar cells acutely dissociated from carp retina were investigated with using the whole-cell patch-clamp recording technique. The currents of these cells mediated by GABAC receptors showed striking desensitization, even at low concentrations of GABA.
M H, Han, Y, Li, X L, Yang
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Regulation of the Retinal Bipolar Cell mGluR6 Pathway by Calcineurin
Journal of Neurophysiology, 2002Glutamate produces a hyperpolarizing postsynaptic potential inon bipolar cells by binding to the metabotropic receptor mGluR6 and subsequently closing a cation-selective channel. It has been proposed that Ca2+influx through the cation channel triggers a depression of the synaptic potential.
Josefin, Snellman, Scott, Nawy
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Retinal bipolar cells: their function and morphology
Trends in Neurosciences, 1983Abstract In vertebrate retinas, six types of neurons are arranged in three separate layers 2 : the distal layer of photoreceptors, the middle layer of interneurons, and the proximal layer of ganglion cells. Bipolar cells are one of the main retinal interneurons and provide the main pathways from photoreceptors to ganglion cells, i.e.
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Uncoupling of horizontal cells alters the receptive fields of retinal bipolar cells
NeuroReport, 2003Effects of uncoupling of horizontal cells by 1-octanol, a non-specific gap junction uncoupling agent, on the receptive field organization of cone-dominant bipolar cells were investigated in isolated, superfused carp retina, using intracellular recording techniques.
Yin, Shen, Ai-Jun, Zhang, Xiong-Li, Yang
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Melanopsin retinal ganglion cells receive bipolar and amacrine cell synapses
Journal of Comparative Neurology, 2003AbstractMelanopsin is a novel opsin synthesized in a small subset of retinal ganglion cells. Ganglion cells expressing melanopsin are capable of depolarizing in response to light in the absence of rod or cone input and are thus intrinsically light sensitive.
Michael A, Belenky +4 more
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Time-dependent reduction of glutamate current in retinal bipolar cells
Neuroscience Letters, 1990Glutamate hyperpolarizes retinal depolarizing bipolar cells (DBCs) by decreasing a non-specific cation conductance. We have investigated this action of glutamate using whole-cell voltage clamp of DBCs in larval tiger salamander retinal slices and here report two observations: a wash-out of the glutamate response and a concomitant decrease in resting ...
Scott A Nawy
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