Increased sucrose permeability in Behçet's disease

Area of Science:

• Gastroenterology
• Immunology
• Rheumatology

Background:

• Behçet's disease (BD) is a chronic systemic vasculitis with unknown causes.
• Gastrointestinal (GI) involvement is a common complication in BD patients.
• Current methods for detecting GI mucosal damage in BD have limitations.

Purpose of the Study:

• To evaluate the predictive value of the sucrose permeability test for identifying GI mucosal damage in BD patients.
• To compare GI permeability between active BD, inactive BD, and healthy controls.
• To correlate GI permeability findings with endoscopic results.

Main Methods:

• A cohort of 26 male BD patients and 21 age/sex-matched controls underwent upper GI permeability testing using sucrose.
• Patients were categorized into active (elevated ESR/CRP or active criteria) and inactive disease groups.
• 25 patients also underwent endoscopic examination for GI assessment.

Main Results:

• BD patients exhibited significantly higher urine sucrose levels compared to controls (P=0.0001).
• Patients with active BD showed markedly increased permeability versus inactive BD (P<0.0001).
• No significant difference in permeability was observed between inactive BD patients and controls.
• Endoscopic findings were non-specific and similar in active and inactive BD.

Conclusions:

• Increased upper GI permeability is present in BD patients, particularly those with active disease.
• The sucrose permeability test may serve as a non-invasive marker for GI mucosal involvement in BD.
• The observed permeability increase is not linked to specific endoscopic lesions in BD.
• Further large-scale studies are needed to confirm the utility of the sucrose permeability test in BD.