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Glycine-specific Synapses in Rat Spinal Cord. Identification by Electron Microscope Autoradiography

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Journal J Cell Biol
Specialty Cell Biology
Date 1976 Feb 1
PMID 1245552
Citations 5
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Abstract

Glycine, an inhibitory transmitter in spinal cord, is taken up into specific nerve terminals by means of a unique high-affinity uptake system. In this study, [3H]glycine was directly microinjected into rat ventral horn in vivo and electron microscope autoradiography used to localize the label in various anatomic compartments. Quantiative analysis showed that [3H]glycine labeled a high proportion of axosomatic and axodendritic synapses which presumably act to inhibit spinal motor neurons.

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