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  • Title: GABA-like immunoreactivity in the cat retina: light microscopy.
    Author: Wässle H, Chun MH.
    Journal: J Comp Neurol; 1989 Jan 01; 279(1):43-54. PubMed ID: 2913060.
    Abstract:
    Semithin sections of the cat retina were stained with antibodies against GABA conjugated to bovine serum albumin with glutaraldehyde. Labelled cells were visualized by means of the peroxidase-antiperoxidase method. In the outer plexiform layer both A- and B-type horizontal cells and the B-type axon terminal system expressed GABA-like immunoreactivity. Approximately 25-30% of all amacrine cells and the whole inner plexiform layer were heavily labelled. Two types of putative GABA-ergic interplexiform cells could be distinguished. One of them also expressed tyrosine-hydroxylase-like immunoreactivity. A few bipolar cells were also GABA-immunolabelled. GABA-like immunoreactivity and 3H-muscimol uptake were colocalized in 90% of the amacrine cells labelled. However, horizontal cells did not accumulate 3H-muscimol.
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