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The distribution of γ-aminobutyric acid (GABA)-containing neurons and nerve fibers was studied in the isthmic nucleus of the frog Rana esculenta using light and electron microscopical immunohistochemical techniques. Approximately 0.5% of isthmic cells showed GABA immunopositivity, and the majority of these cells was found in the anterior one-third of the nucleus. A meshwork of GABA-immunostained fine...
In the rabbit retina, parvalbumin has been localized selectively to AII amacrine cells, while 28 kDa calbindin could be detected in horizontal cells, in one type of depolarizing cone bipolar cell and a population of wide-field amacrine cells. The distribution of the third neuronal calcium binding protein, calretinin, however, has not been studied to date in detail in the rabbit retina. Therefore...
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