Amylase-Producing Maltooligosaccharide Provides Potential Relief in Rats with Loperamide-Induced Constipation

Area of Science:

• Gastroenterology
• Microbiology
• Nutritional Science

Background:

• Constipation is a prevalent chronic condition characterized by difficult and infrequent bowel movements.
• Loperamide-induced constipation in rats serves as a relevant model for studying potential therapeutic interventions.
• Oligosaccharides are recognized for their prebiotic effects and potential to modulate gut microbiota.

Purpose of the Study:

• To investigate the laxative effects of maltooligosaccharide (MOS) in a rat model of loperamide-induced constipation.
• To evaluate the impact of MOS on gut microbiota composition and short-chain fatty acid production.
• To assess MOS's influence on intestinal morphology and function.

Main Methods:

• In vitro assessment of MOS's effect on lactic acid bacteria growth.
• Administration of 10% and 15% MOS solutions to Sprague-Dawley rats with loperamide-induced constipation for 14 days.
• Evaluation of fecal characteristics, cecal short-chain fatty acids, and intestinal parameters (mucosal thickness, mucin secretion, Cajal cell area).

Main Results:

• MOS promoted the growth of most tested lactic acid bacteria in vitro.
• Oral MOS administration significantly improved fecal pellet quality and water content in constipated rats.
• Elevated cecal short-chain fatty acid levels, increased mucosal thickness, enhanced mucin secretion, and larger Cajal cell areas were observed in MOS-treated groups.

Conclusions:

• Maltooligosaccharide (MOS) demonstrates significant laxative properties and beneficial effects on the gastrointestinal tract.
• MOS can be a valuable ingredient in functional foods for managing constipation and promoting overall gut health.
• Further research into MOS's prebiotic and gastrointestinal-protective mechanisms is warranted.