Potentiation of cholecystokinin and secretin-induced pancreatic exocrine secretion by endogenous insulin in humans

Chang Duck Kim, Kwang Hee Kim, Hong Sik Lee, Chi Wook Song, Ho Sang Ryu, Jin Hai Hyun

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

To investigate the effects of endogenous insulin on pancreatic exocrine secretion in humans, we evaluated the pure pancreatic juice obtained by endoscopic cannulation of the main pancreatic duct in 21 healthy subjects (14 men and seven women). Samples of pancreatic juices were collected after intravenous injection of either glucose (50%, 40 ml), secretin (0.25 CU/kg), and cholecystokinin-8 (CCK) (40 ng/kg), or a combination of glucose, secretin, and CCK in six 5-min periods. The responses of plasma glucose, insulin, and C-peptide to intravenous administration of glucose were measured. After infusion of glucose, the plasma insulin and C-peptide levels were significantly increased and remained at high levels during 30-min experiments. Intravenous administration of secretin and CCK resulted in significant increases of pancreatic secretion including volume, bicarbonate, and protein output. When glucose was simultaneously administered with secretin and CCK, pancreatic secretion was significantly increased, more than the effects achieved by the secretin and CCK. However, glucose alone did not increase basal pancreatic secretion. These observations suggest that endogenous insulin intensifies pancreatic secretion stimulated by secretin and CCK in humans.

Original languageEnglish
Pages (from-to)410-414
Number of pages5
JournalPancreas
Volume18
Issue number4
DOIs
Publication statusPublished - 1999 Jan 1

Fingerprint

Secretin
Cholecystokinin
Insulin
Glucose
Pancreatic Juice
C-Peptide
Intravenous Administration
Pancreatic Ducts
Bicarbonates
Intravenous Injections
Catheterization
cholecystokinin 8
Healthy Volunteers

Keywords

  • Cholecystokinin
  • Endogenous insulin
  • Pancreatic exocrine secretion
  • Pancreatic juice
  • Secretin

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Hepatology
  • Endocrinology

Cite this

Potentiation of cholecystokinin and secretin-induced pancreatic exocrine secretion by endogenous insulin in humans. / Kim, Chang Duck; Kim, Kwang Hee; Lee, Hong Sik; Song, Chi Wook; Ryu, Ho Sang; Hyun, Jin Hai.

In: Pancreas, Vol. 18, No. 4, 01.01.1999, p. 410-414.

Research output: Contribution to journalArticle

Kim, Chang Duck ; Kim, Kwang Hee ; Lee, Hong Sik ; Song, Chi Wook ; Ryu, Ho Sang ; Hyun, Jin Hai. / Potentiation of cholecystokinin and secretin-induced pancreatic exocrine secretion by endogenous insulin in humans. In: Pancreas. 1999 ; Vol. 18, No. 4. pp. 410-414.
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