Postsynaptic localization of ?-aminobutyric acid transporters and receptors in the outer plexiform layer of the goldfish retina: An ultrastructural study

2004 ◽  
Vol 474 (1) ◽  
pp. 58-74 ◽  
Author(s):  
Jan Klooster ◽  
Bob Nunes Cardozo ◽  
Stephen Yazulla ◽  
Maarten Kamermans
Keyword(s):  
Ultrastructural Study ◽  
Plexiform Layer ◽  
Outer Plexiform Layer ◽  
Aminobutyric Acid ◽  
Goldfish Retina

Analysis of the Proton Mediated Feedback Signals in the Outer Plexiform Layer of Goldfish Retina

2011 ◽  
pp. 684-691
Author(s):  
Nilton Liuji Kamiji ◽  
Masahiro Yamada ◽  
Kazunori Yamamoto ◽  
Hajime Hirasawa ◽  
Makoto Kurokawa ◽  
...  
Keyword(s):  
Plexiform Layer ◽  
Outer Plexiform Layer ◽  
Goldfish Retina

Localization of the AMPA subunit GluR2 in the outer plexiform layer of goldfish retina

2001 ◽  
Vol 441 (2) ◽  
pp. 155-167 ◽  
Author(s):  
Jan Klooster ◽  
Keith M. Studholme ◽  
Stephen Yazulla
Keyword(s):  
Plexiform Layer ◽  
Outer Plexiform Layer ◽  
Goldfish Retina

scholarly journals Light-evoked increases in extracellular K+ in the plexiform layers of amphibian retinas.

1985 ◽  
Vol 86 (2) ◽  
pp. 189-213 ◽  
Author(s):  
C J Karwoski ◽  
E A Newman ◽  
H Shimazaki ◽  
L M Proenza
Keyword(s):  
Plexiform Layer ◽  
Wave Generation ◽  
Outer Plexiform Layer ◽  
Aminobutyric Acid ◽  
Electrode Placement ◽  
Inner Plexiform Layer ◽  
Gamma Aminobutyric Acid ◽  
Slice Preparation ◽  
K Concentration ◽  
Plexiform Layers

Recordings of light-evoked changes in extracellular K+ concentration (delta[K+]o) were obtained in the retinas of frog and mudpuppy. In eyecup preparations, various recording approaches were used and provided evidence for a K increase near the outer plexiform layer (distal K increase). This distal K increase could be pharmacologically dissociated from the well-known, large K increase in the proximal retina by the application of ethanol and gamma-aminobutyric acid. The distal K increase also often showed surround antagonism. A retinal slice preparation was used to permit electrode placement into the desired retinal layers under direct visual control and without the risk of electrode damage to adjacent layers. In the slice, a distinct distal K increase was found in the outer plexiform layer, in addition to the prominent K increase in the inner plexiform layer. Compared with eyecups, only weak K increases were found in the nuclear layers of the slice. This suggests that the K responses observed in the nuclear layers of eyecups may be generated by K+ diffusing along the electrode track from the plexiform layers. In the context of current models of ERG b-wave generation, the magnitude of the recorded distal K increase, compared with the proximal K increase, seems too small to give rise to the b-wave. However, the distal K increase may be differentially depressed by electrode dead space. It is also possible that if certain aspects of the models of b-wave generation were modified, then the observed distal K increase could give rise to the b-wave.

Multiple subtypes of glycine-immunoreactive neurons in the goldfish retina: Single- and double-label studies

1990 ◽  
Vol 4 (3) ◽  
pp. 299-309 ◽  
Author(s):  
Stephen Yazulla ◽  
Keith M. Studholme
Keyword(s):  
Substance P ◽  
Visual Information ◽  
Plexiform Layer ◽  
Amacrine Cells ◽  
Inner Plexiform Layer ◽  
Double Labeling ◽  
Light Microscopical Level ◽  
Double Label ◽  
Dendritic Stratification ◽  
Goldfish Retina

AbstractThe glycinergic system in goldfish retina was studied by immunocytochemical localization of glycine antiserum at the light-microscopical level. Numerous amacrine cells, a type of interplexiform cell, interstitial cell, and displaced amacrine cell were glycine-immunoreactive (IR). Amacrine cells, accounting for 97% of the glycine-IR neurons, were of four types based solely on their level of dendritic stratification: stratified amacrine cells of the first, third, and fifth sublayers and bistratified amacrine cells of the first and fifth sublayers. Double-labeling experiments were carried out to determine possible co-localization of glycine-IR with GABA-IR, serotonin-IR, substance P-IR and somatostatin-IR. No evidence for co-localization of glycine-IR with these other transmitter substances was found, despite reports of co-localization of these substances in retinas of other species. Glycinergic neurons in goldfish retina appear to consist of a heterogeneous population of at least seven morphologically distinct subtypes that are also neurochemically distinct in regard to GABA, serotonin, substance P, and somatostatin. Since dendritic stratification in the inner plexiform layer is correlated with ON-, OFF-response types, we suggest that the subtypes of glycine-IR amacrine cells play different roles in the encoding of visual information.

Ultrastructural localization of cholinesterase activity in the outer plexiform layer of the newt retina

1971 ◽  
Vol 35 (1) ◽  
pp. 299-303 ◽  
Author(s):  
D.H. Dickson ◽  
B.A. Flumerfelt ◽  
M.J. Hollenberg ◽  
D.G. Gwyn
Keyword(s):  
Cholinesterase Activity ◽  
Plexiform Layer ◽  
Ultrastructural Localization ◽  
Outer Plexiform Layer
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