Effect of massive bowel resection on enteroinsular axis

Area of Science:

• Endocrinology
• Gastroenterology
• Metabolic research

Background:

• Massive bowel resection significantly alters gastrointestinal function.
• Understanding the impact on pancreatic endocrine function is crucial for patient management.

Purpose of the Study:

• To investigate pancreatic endocrine function after massive bowel resection.
• To differentiate short-term and long-term functional changes.

Main Methods:

• Studied 13 patients divided into short-term (1 month) and long-term (3+ months) post-resection groups.
• Assessed pancreatic endocrine function via oral glucose and intravenous arginine challenges.
• Monitored insulin and glucagon responses.

Main Results:

• Oral glucose elicited low insulin secretion in most patients, with four showing diabetic glucose tolerance.
• Arginine-stimulated insulin response was impaired short-term but normalized long-term.
• Pancreatic glucagon response to arginine remained unchanged.

Conclusions:

• Massive bowel resection disrupts pancreatic endocrine function, particularly insulin secretion.
• The enteroinsular axis interruption likely explains the altered insulin response dynamics.
• Long-term adaptation may partially restore arginine-stimulated insulin secretion.