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Involvement of Gene Expressions of Cholecystokinin and Secretin in Luminal Feedback Regulation in Conscious Rats

Kyoko Miyasaka, Akihiro Funakoshi

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Abstract

Pancreatic exocrine secretion in conscious rats in regulated by bile and pancreatic juice in the proximal intestinal lumen; exclusion of bile and pancreatic juice produces release of cholecystokinin (CCK) and pancreatic hypersecretion (luminal feedback regulation). In the present study, we examined the changes of gene expressions of CCK and secretin, another representative gastrointestinal hormone in the intestine, and found that exclusion of bile and pancreatic juice significantly enhanced gene expressions of both CCK and secretin. These results suggested involvement of both CCK and secretin in luminal feedback regulation.

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What this paper is about

Pancreatic exocrine secretion in conscious rats in regulated by bile and pancreatic juice in the proximal intestinal lumen; exclusion of bile and pancreatic juice produces release of cholecystokinin (CCK) and pancreatic hypersecretion (luminal feedback regulation). In the present study, we examined the changes of gene expressions of CCK and secretin, another representative gastrointestinal hormone in the intestine, and found that exclusion of bile and pancreatic juice significantly enhanced gene expressions of both CCK and secretin. These results suggested involvement of both CCK and secretin in luminal feedback regulation.

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Available abstract

Pancreatic exocrine secretion in conscious rats in regulated by bile and pancreatic juice in the proximal intestinal lumen; exclusion of bile and pancreatic juice produces release of cholecystokinin (CCK) and pancreatic hypersecretion (luminal feedback regulation). In the present study, we examined the changes of gene expressions of CCK and secretin, another representative gastrointestinal hormone in the intestine, and found that exclusion of bile and pancreatic juice significantly enhanced gene expressions of both CCK and secretin. These results suggested involvement of both CCK and secretin in luminal feedback regulation.

Key concepts: Secretin, Cholecystokinin, Internal medicine, Gastrointestinal hormone, Endocrinology, Pancreatic juice, Hormone, Secretion

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