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Science 25 March 1983:
Vol. 219. no. 4591, pp. 1449 - 1451
DOI: 10.1126/science.6828873
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Articles

Science, Vol 219, Issue 4591, 1449-1451
Copyright © 1983 by American Association for the Advancement of Science

articles

Proglumide: selective antagonism of excitatory effects of cholecystokinin in central nervous system

LA Chiodo and BS Bunney

Extracellular single-unit recording techniques were used to test the ability of proglumide to block cholecystokinin-induced excitation of rat midbrain dopaminergic neurons and dopamine-sensitive prefrontal cortex cells. Intravenous and iontophoretic proglumide administration consistently blocked cholecystokinin-induced excitations while having no effect on glutamic acid-induced increases in activity. This selective blockade of central cholecystokinin effects by proglumide suggests that this drug may be valuable for studying the possible role of cholecystokinin as a neurotransmitter or neuromodulator in the central nervous system.


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