Potential Targets in Constipation Research: A Review.

Area of Science:

• Gastroenterology
• Pharmacology

Background:

• Constipation is a prevalent gastrointestinal disorder impacting quality of life, particularly in older women.
• Current treatments, including over-the-counter medications, often provide inadequate relief for many patients.
• Research in constipation has historically received limited attention compared to other medical areas.

Approach:

• This review synthesizes research on various therapeutic targets for constipation, drawing from multiple scientific databases.
• It examines established targets like ClC-2, CFTR, opioid receptors, and 5HT-4 receptors, alongside emerging targets such as IBAT, PAR-2, and intestinal NHE-3.
• The role of the gut microbiome in constipation pathogenesis and treatment is also discussed, supported by randomized controlled trials.

Key Points:

• ClC-2 and CFTR facilitate intestinal chloride secretion, promoting stool passage.
• Opioid receptor antagonists and 5HT-4 receptor agonists modulate gastrointestinal motility and alleviate constipation.
• Inhibiting the ileal bile acid transporter (IBAT) increases colonic bile acid concentration, inducing a laxative effect.
• Ghrelin receptor activation and modulation of intestinal NHE-3 present additional prokinetic and absorptive regulatory strategies.
• The gut microbiota significantly influences intestinal peristalsis, offering a new avenue for constipation management.

Conclusions:

• Pharmacological agents targeting these pathways demonstrate positive impacts on constipation treatment.
• Ongoing clinical trials investigating novel drugs offer hope for improved patient satisfaction and therapeutic efficacy.
• Future research and clinical data will clarify the long-term benefits and patient suitability of these advanced constipation therapies.