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Antibody pattern in childhood celiac disease
Summary
This study evaluated celiac disease antibodies in children. Antiendomysium antibodies (EmA) demonstrated high sensitivity and specificity, suggesting human umbilical cord is a suitable substrate for EmA testing.
Area of Science:
- Pediatric immunology
- Gastroenterology
Background:
- Study involved 50 children diagnosed with celiac disease and 25 healthy controls.
- Age range of participants was 7 months to 15 years.
Purpose of the Study:
- To compare the diagnostic accuracy of different celiac disease-related antibodies.
- To evaluate the efficacy of various substrates for antiendomysium antibody (EmA) detection.
Main Methods:
- Enzyme-linked immunosorbent assay (ELISA) was used for IgA and IgG antigliadin antibodies (AGA).
- Fluorescein isothiocyanate-conjugate-labeled anti-human immunoglobulin technique was employed for IgA anti-R1-reticulin antibodies (ARA) and EmA.
- EmA were tested using monkey esophagus and human umbilical cord as substrates.
Main Results:
- AGA exhibited high sensitivity but low specificity.
- ARA showed high specificity but low sensitivity.
- EmA demonstrated high sensitivity (96% with monkey esophagus) and specificity (100% with human umbilical cord).
Conclusions:
- Celiac disease-related antibodies are crucial for identifying celiac disease in children.
- Human umbilical cord is a practical and effective substrate for EmA testing, comparable to monkey esophagus.