Open AccessSome Aspects on the Anatomy and Function of Central Cholecystokinin Systems
Author(s) -
Hökfelt Tomas,
Blacker David,
Broberger Christian,
HerreraMarschitz Mario,
Snyder Gretchen,
Fisone Gilberto,
Cortés Roser,
Morino Patrizia,
You ZhiBing,
Ögren Sven Ove
Publication year - 2002
Publication title -
pharmacology & toxicology
Language(s) - English
Resource type - Journals
eISSN - 1600-0773
pISSN - 0901-9928
DOI - 10.1034/j.1600-0773.2002.910617.x
Subject(s) - cholecystokinin , glutamatergic , phencyclidine , neuroscience , dopamine , neuropeptide , endogeny , glutamate receptor , nmda receptor , medicine , endocrinology , biology , psychology , receptor
The distribution of some cholecystokinin (CCK) systems in the rat brain is reviewed focusing on mesencephalic dopamine neurones which coexpress CCK and, in particular, on cortico‐striatal CCK neurones which probably have glutamate as their co‐transmitter. Functional studies based on the effect of several CCK B antagonists on phencyclidine‐induced motility suggest that CCK is involved in locomotor behaviour causing inhibition in phencyclidine‐treated habituated rats. In contrast, in unhabituated rats CCK stimulates exploratory behaviour. These effects may be related to the cortico‐striatal CCK/glutamatergic pathway. Moreover, these studies provide evidence for endogenous release of a neuropeptide with behavioural consequences.