نتایج جستجو برای: cholecystokinin
تعداد نتایج: 3694 فیلتر نتایج به سال:
Cholecystokinin (CCK) analogues (JMV310, JMV320, JMV328, and JMV332), obtained by side chain to side chain cyclization of a lysine residue in position 28 with a lysine residue in position 31, were found to be highly selective for the brain CCK receptor (CCK-B receptor), both in guinea pig and rat. In these analogues, the C-terminal tetrapeptide region of the molecule, which is the crucial deter...
In the present study, we investigated whether cholecystokinin (CCK) or its structurally related peptide gastrin participates in long term regulation of adipocyte leptin secretion. The levels of circulating leptin observed after 2 and 6 h of refeeding in 18-h fast rats were significantly lowered by injection of the specific gastrin/CCK-B receptor antagonist YM022 at doses that did not affect fee...
The paradigm for the control of feeding behavior has changed significantly. Research has shown that leptin, in the presence of CCK, may mediate the control of short-term food intake. This interaction between CCK and leptin occurs at the vagus nerve. In the present study, we aimed to characterize the interaction between CCK and leptin in the vagal primary afferent neurons. Single neuronal discha...
Cholecystokinin (CCK) may mediate human anxiety and animal data suggest that cholecystokinin antagonists could provide an important advance in the treatment of anxiety disorders. The study of CCK receptor systems in psychiatric patients has, however, been severely limited by the lack of available probes. We utilized intravenous infusions of pentagastrin, a selective CCK-B receptor agonist, and ...
Measurement of hormones in biological fluids is an obvious prerequisite for evaluation of their physiological and pathophysiological significance. Of the steadily increasing list of gastrointestinal hormones, cholecystokinin (CCK) was the third to be discovered (Ivy and Oldberg, 1928). Cholecystokinin, secretin, and gastrin constitute the classical triad of gut hormones which, until recently, w...
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