Human Intestinal Barrier Function in Health and Disease

Area of Science:

• Gastroenterology
• Physiology
• Immunology

Background:

• The gastrointestinal tract possesses a large surface area for nutrient absorption, necessitating a robust barrier function.
• Dysfunctional intestinal barrier integrity is implicated in various gastrointestinal and systemic diseases.
• Maintaining a balance between absorption and protection is crucial for gut health.

Approach:

• This review synthesizes current literature on intestinal permeability.
• It discusses the role of intestinal permeability in specific disorders.
• The effects of common medications and assessment methods are also covered.

Key Points:

• Increased intestinal permeability is a common factor in conditions like inflammatory bowel disease, irritable bowel syndrome, obesity, celiac disease, and food allergies.
• Proton pump inhibitors and non-steroidal anti-inflammatory drugs can negatively impact intestinal barrier function.
• Various methods exist to assess the integrity of the intestinal barrier.

Conclusions:

• Understanding intestinal permeability is key to diagnosing and managing a range of gastrointestinal disorders.
• Further research into therapeutic strategies targeting barrier function may offer new treatment avenues.
• Assessing intestinal permeability provides valuable insights into disease pathogenesis and drug effects.