NPY-induced neurotransmitter release from the rabbit and chicken retina
- 27 May 2009
- journal article
- research article
- Published by Wiley in Acta Ophthalmologica
- Vol. 71 (5), 590-596
- https://doi.org/10.1111/j.1755-3768.1993.tb04647.x
Abstract
Neuropeptide Y (NPY) or closely related peptides are present in the retina of certain vertebrates, but their actions are not known. We have therefore studied the NPY-induced release of [3H]-GABA, [3H]-glycine, [3H]-dopamine, [3H]-5-hydroxytryptamine, and [3H]-choline chloride-derived radioactivity in the rabbit and chicken retina. NPY affected the release of [3H]-glycine, [3H]-dopamine, [3H]-5-hydroxytryptamine, and [3H]-choline chloride-derived radioactivity in rabbit retina and of [3H]-GABA, [3H]-5-hydroxytryptamine and [3H]-choline chloride-derived radioactivity in chicken retina in an energy requiring, NA+K(+)-ATPase dependent and calcium dependent manner. Certain related peptides, APP (= avian pancreatic polypeptide), BPP (= bovine pancreatic polypeptide), and PYY (= peptide YY), had variable and less pronounced effects. The results suggest a neurophysiological role in both chicken and rabbit retina for NPY or some related peptide.Keywords
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