Gastrointestinal hormones and gut motility

Area of Science:

• Gastroenterology
• Neurogastroenterology
• Peptide Biology

Background:

• Gut-produced peptides play a crucial role in regulating gastrointestinal (GI) function.
• Their mechanisms involve paracrine signaling and the gut-brain axis.

Purpose of the Study:

• To review recent studies (since January 2013) on gut peptides affecting GI motility.
• To summarize current understanding and future directions in this field.

Main Methods:

• Literature review of original research.
• Analysis of studies investigating plasma levels of gut peptides.
• Evaluation of clinical trial data for peptide-based prokinetic agents.

Main Results:

• Plasma level studies support existing concepts but lack definitive proof of causation.
• Growing evidence points to paracrine and gut-brain axis roles for gut peptides.
• Despite past setbacks, novel prokinetic peptide agonists like relamorelin and camicinal present encouraging therapeutic potential.

Conclusions:

• Gut peptides are integral to GI motility regulation.
• Further research is needed to elucidate causal relationships.
• Emerging peptide agonists offer a promising avenue for treating motility disorders.