The quantitative relationship between cholecystokinin's (CCK) inhibitory actions on gastric emptying and feeding was examined in rats. CCK (1, 2, 4, or 8 μg/kg) inhibited both the gastric emptying (determined by the dye dilution method) and ingestion of a 0.5-kcal/ml glucose solution in a 30-min testing period in 20-h deprived male Sprague-Dawley rats. Comparisons of the inhibitions of gastric emptying and feeding across the dose range of CCK revealed two components of CCK satiety: one defined by a linear relationship between the gastric inhibitory and feeding inhibitory actions of CCK through a dose range of 1-4 μg/kg, which accounted for 64% of the variability in the satiety action of CCK, and a second that appeared to be independent of the gastric inhibitory action of CCK.
|Original language||English (US)|
|Journal||American Journal of Physiology - Regulatory Integrative and Comparative Physiology|
|State||Published - Jan 1 1988|
ASJC Scopus subject areas
- Physiology (medical)