Bile enhances release of insulin

An incretin-mediated effect

Guillermo Gomez, Felix Lluis, Jin Ishizuka, Edwin J. Draviam, Tatsuo Uchida, George H. Greeley, James C. Thompson

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Ingestion of food stimulates secretion of bile and release of gut hormones that enhance nutrient-stimulated release of insulin. The extent of physiologic participation of bile in the enteroinsular axis was examined in seven conscious dogs (weight: 20 ± 2 kg) that were prepared for study with chronic cannulas placed in the duodenum opposite the ampulla of Vater. On separate days, a meal consisting of 10 gm (MG-10), 25 gm (MG-25), or 62 gm (MG-62) of glucose (dextrose) was given orally in the presence of normal bile flow or during bile diversion. Bile diversion was achieved by catheterization of the common bile duct via the duodenal cannula. The insulin responses (given as ng [0-120]min/ml) to the different glucose meals, with bile present (BP) or absent (BA) in the lumen, were as follows: MG-10, 81 ± 8 BP and 72 ± 11 BA; MG-25, 172 ± 25 BP and 100 ± 6 BA (p < 0.05); and MG-62, 390 ± 79 BP and 153 ± 32 BA (p < 0.05). Only MG-25 and MG-62 produced a significant elevation of plasma glucose concentrations. Release of gastrin was not affected by either the presence of bile or the glucose content of the meal. We conclude that (1) endogenous bile enhances nutrient-stimulated release of insulin, (2) this effect is glucose-dependent with a threshold of approximately 1 gm/kg of glucose, and (3) bile may facilitate the release of insulinotropic hormones other than gastrin.

Original languageEnglish (US)
Pages (from-to)195-199
Number of pages5
JournalSurgery
Volume102
Issue number2
StatePublished - 1987

Fingerprint

Incretins
Bile
Insulin
Glucose
Meals
Gastrins
Food
Hormones
Ampulla of Vater
Common Bile Duct
Duodenum
Catheterization

ASJC Scopus subject areas

  • Surgery

Cite this

Gomez, G., Lluis, F., Ishizuka, J., Draviam, E. J., Uchida, T., Greeley, G. H., & Thompson, J. C. (1987). Bile enhances release of insulin: An incretin-mediated effect. Surgery, 102(2), 195-199.

Bile enhances release of insulin : An incretin-mediated effect. / Gomez, Guillermo; Lluis, Felix; Ishizuka, Jin; Draviam, Edwin J.; Uchida, Tatsuo; Greeley, George H.; Thompson, James C.

In: Surgery, Vol. 102, No. 2, 1987, p. 195-199.

Research output: Contribution to journalArticle

Gomez, G, Lluis, F, Ishizuka, J, Draviam, EJ, Uchida, T, Greeley, GH & Thompson, JC 1987, 'Bile enhances release of insulin: An incretin-mediated effect', Surgery, vol. 102, no. 2, pp. 195-199.
Gomez G, Lluis F, Ishizuka J, Draviam EJ, Uchida T, Greeley GH et al. Bile enhances release of insulin: An incretin-mediated effect. Surgery. 1987;102(2):195-199.
Gomez, Guillermo ; Lluis, Felix ; Ishizuka, Jin ; Draviam, Edwin J. ; Uchida, Tatsuo ; Greeley, George H. ; Thompson, James C. / Bile enhances release of insulin : An incretin-mediated effect. In: Surgery. 1987 ; Vol. 102, No. 2. pp. 195-199.
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