... identified several head-expressed genes strongly responding to social isolation or enrichment. Of particular interest, social isolation downregulated expression of the gene encoding the neuropeptide Drosulfakinin (Dsk), the homologue of vertebrate cholecystokinin (CCK), which is critical for many mammalian...

... of cholecystokinin (CCK8) on gastric emptying and on stomach motility in vivo and in vitro . Gastric emptying of 99 Tc m -labelled food was measured in swimming fish by using a gamma camera, counting consecutive 2.5 min periods for 18–42 h. After 20 h, 55.3±4.0 % of the labelled food remained in the stomach...

... and cholecystokinin on gill pouch efferent flow distribution and vascular resistance The actions of serotonin hydrochloride (5-hydroxytryptamine, Sigma) and cholecystokinin (CCK-8 sulphated, Cambridge Research Biomedicals) were tested at a single concentration. Both drugs significantly increased flow...