Regulation of the gastric emptying of glucose

W. Brener, T. R. Hendrix, Paul R McHugh

Research output: Contribution to journalArticle

Abstract

The gastric emptying characteristics of physiological saline (0.9% NaCl) and glucose solutions of three different concentrations (0.05, 0.125, 0.25 g/ml) were examined in order to identify distinctions in the control of the stomach's activity. Saline emptied rapidly and exponentially. Glucose assumed, soon after filling the stomach, a slow and calorie-constant emptying pattern such that 2.13 kcal of glucose were delivered per minute to the duodenum for all three concentrations of glucose. When, by means of a catheter passed beyond the pylorus, glucose was infused into the duodenum in amounts varying from 26.5 to 120 kcal, an inhibition on the gastric emptying of physiological saline of 0.46 min/kcal of intraduodenal glucose was demonstrated. Since 2.13 kcal/min and 0.46 min/kcal are reciprocals, it appeared that in emptying saline, the gastroduodenal system acts as an 'open-loop' system passing liquids from the stomach at a rate primarily determined by the volume of gastric contents. With glucose, however, a 'closed-loop' system is established that assumes a steady-state balance between the delivery of glucose to the duodenum and the inhibition of this delivery evoked from the duodenum by the glucose that enters it.

Original languageEnglish (US)
Pages (from-to)76-82
Number of pages7
JournalGastroenterology
Volume85
Issue number1
StatePublished - 1983

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Gastric Emptying
Glucose
Duodenum
Stomach
Gastrointestinal Contents
Pylorus
Catheters

ASJC Scopus subject areas

  • Gastroenterology

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Brener, W., Hendrix, T. R., & McHugh, P. R. (1983). Regulation of the gastric emptying of glucose. Gastroenterology, 85(1), 76-82.

Regulation of the gastric emptying of glucose. / Brener, W.; Hendrix, T. R.; McHugh, Paul R.

In: Gastroenterology, Vol. 85, No. 1, 1983, p. 76-82.

Research output: Contribution to journalArticle

Brener, W, Hendrix, TR & McHugh, PR 1983, 'Regulation of the gastric emptying of glucose', Gastroenterology, vol. 85, no. 1, pp. 76-82.
Brener, W. ; Hendrix, T. R. ; McHugh, Paul R. / Regulation of the gastric emptying of glucose. In: Gastroenterology. 1983 ; Vol. 85, No. 1. pp. 76-82.
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