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Updated: May 2, 2026

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine
Published on: February 26, 2019
Hormonal signaling in the gut.
Clémence D Côté1, Melika Zadeh-Tahmasebi1, Brittany A Rasmussen1
1Toronto General Research Institute, University Health Network, Toronto, Ontario M5G 1L7; Departments of Physiology, University of Toronto, Toronto, Ontario M5S 1A8.
The gut regulates metabolic homeostasis through nutrient sensing and hormones like CCK and GLP-1. Targeting these gut hormonal pathways offers potential therapeutic strategies for improving glucose control in diabetes.
Area of Science:
- Endocrinology
- Metabolic Homeostasis
- Gut-Brain Axis
Background:
- The gut plays a crucial role in metabolic homeostasis through nutrient sensing and hormonal signaling.
- Gut hormones, including cholecystokinin (CCK) and glucagon-like peptide-1 (GLP-1), are released post-meal.
- These hormones regulate glycemia via a neuronal gut-brain axis.
Purpose of the Study:
- To investigate the role of gut hormonal signaling in metabolic regulation.
- To explore the potential of targeting gut hormones for diabetes therapy.
Main Methods:
- Nutrient sensing in the jejunum.
- Leptin action on glucose production.
- Analysis of duodenal jejunal bypass surgery effects.
Main Results:
- Jejunal nutrient sensing and leptin action suppress glucose production.
- These mechanisms are essential for the antidiabetic effects of duodenal jejunal bypass.
Conclusions:
- Gut hormonal signaling pathways are critical for glucose control.
- Targeting these pathways presents a promising therapeutic strategy for managing diabetes.
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