Gliadin-IgA Antibodies De-amidated (DGP)
Also Known As
Test Parameters Included
- Serum Deamidated Gliadin Peptide IgA Antibody Concentration (EU/mL)
- Pathologist Immunology Remark - correlated with celiac disease serology reference intervals
Department
Methodology
Sample Required
Preparation
Schedule Report
24 hours
Emergency Report
Yes
Frequently Asked Questions
What does the DGP-IgA test detect?
It measures IgA antibodies against deamidated gliadin peptides, which are modified gluten proteins. Elevated levels strongly suggest an immune reaction to gluten, supporting celiac disease diagnosis.
Is fasting required for this test?
No, fasting is not required for DGP-IgA testing. Sample can be collected at any time of day.
How is DGP-IgA different from tTG-IgA?
DGP-IgA detects antibodies against deamidated gliadin, while tTG-IgA detects antibodies against tissue transglutaminase. DGP-IgA is particularly useful in early-stage celiac disease and in young children under 2 years where tTG-IgA may be less sensitive.
What do high DGP-IgA levels indicate?
High levels indicate an active immune response to gluten and are strongly associated with celiac disease. Results should be interpreted alongside tTG-IgA and total IgA levels by a qualified physician.
Can a gluten-free diet affect results?
Yes, strict gluten withdrawal before testing may lower antibody levels and cause false-negative results. Patients should maintain a gluten-containing diet for at least 6–8 weeks prior to testing for accurate results.
How to access the report?
Verified PDF report is available within 24 hours via www.drpatholab.in or WhatsApp/Email.
Test Description
Test Code
GL01
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