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Synaptic release of radioactivity after intrasomatic injection of choline-3H into an identified cholinergic interneuron in abdominal ganglion of Aplysia californica

Synaptic release of radioactivity after intrasomatic injection of choline-3H into an identified... Radioactivity Choline-“H Inter Aplysia York, After Intrasomatic into an Identified in Abdominal cuZ$Ornicu R, ERIC New JAMES H. Instilute York Cily the 10016 Neul-obiology York Beha.vior, University Public Heallh Research Medical School, New MOST THE TRANSMITTER substance d by nerve impulses is newly synthesized in terminals materials taken up locally (see, for example, ref 6). Nonetheless, some transmitters are synthesized in cell bodies s are transported down the axon (4, 5, 12-14, 19, 26, 28, 30). It is not known, however, whether transmitter substance formed in the cell. body reaches the nerve terminals in sufficient quantity to contribute to the economy the material there to be d by nerve impulses. Recently, Eisenstadt, (28) developed a technique for injecting radioactive substances into single s ApEysia. They found that following the injection choline-3H into the cell body the giant cholinergic , R2, acetylcholine-3H was rapidly formed in the cell body; at 15°C the newly synthesized acetylcholine was transported down the axon at a rate 17 mm/day. Using this method, we have examined the possibility that acetylcholine, formed in the cell body, is transported to the nerve terminals d there by nerve impulses. For this purpose we have used the cholinergic http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Neurophysiology The American Physiological Society

Synaptic release of radioactivity after intrasomatic injection of choline-3H into an identified cholinergic interneuron in abdominal ganglion of Aplysia californica

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Publisher
The American Physiological Society
Copyright
Copyright © 1974 the American Physiological Society
ISSN
0022-3077
eISSN
1522-1598
Publisher site
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Abstract

Radioactivity Choline-“H Inter Aplysia York, After Intrasomatic into an Identified in Abdominal cuZ$Ornicu R, ERIC New JAMES H. Instilute York Cily the 10016 Neul-obiology York Beha.vior, University Public Heallh Research Medical School, New MOST THE TRANSMITTER substance d by nerve impulses is newly synthesized in terminals materials taken up locally (see, for example, ref 6). Nonetheless, some transmitters are synthesized in cell bodies s are transported down the axon (4, 5, 12-14, 19, 26, 28, 30). It is not known, however, whether transmitter substance formed in the cell. body reaches the nerve terminals in sufficient quantity to contribute to the economy the material there to be d by nerve impulses. Recently, Eisenstadt, (28) developed a technique for injecting radioactive substances into single s ApEysia. They found that following the injection choline-3H into the cell body the giant cholinergic , R2, acetylcholine-3H was rapidly formed in the cell body; at 15°C the newly synthesized acetylcholine was transported down the axon at a rate 17 mm/day. Using this method, we have examined the possibility that acetylcholine, formed in the cell body, is transported to the nerve terminals d there by nerve impulses. For this purpose we have used the cholinergic

Journal

Journal of Neurophysiology – The American Physiological Society

Published: Jul 1, 1974

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