Gluten challenge in treated coeliac disease

Area of Science:

• Pediatrics
• Gastroenterology
• Immunology

Background:

• Coeliac disease diagnosis requires confirmation, especially after prolonged gluten-free diets.
• Re-evaluation of previous diagnoses is crucial for accurate long-term management.

Purpose of the Study:

• To investigate the diagnostic accuracy of gluten challenge in children with a history of coeliac disease.
• To determine the reliability of intestinal biopsies following gluten reintroduction.

Main Methods:

• Thirty-two children with prior coeliac disease diagnosis underwent a gluten challenge (10g/day for 3 months).
• Small intestinal biopsies were performed pre- and post-challenge.
• Light microscopy and morphometric techniques assessed biopsy changes.

Main Results:

• Coeliac disease was confirmed in 25 (78%) of the 32 children.
• In 7 children, continued challenge for 2 years resulted in normal biopsies, excluding coeliac disease.
• Clinical symptoms and blood markers were unreliable indicators of gluten-induced enteropathy.

Conclusions:

• Gluten challenge combined with intestinal biopsy is essential for diagnosing coeliac disease.
• A normal biopsy after a 3-month gluten challenge reliably excludes coeliac disease in children.