UCSF Navigation Bar

UCSF Departments of Pathology & Laboratory Medicine Home Page

Lab Manual for Moffitt-Long and Mount Zion

Lab Manual for SFGH

Internal Resources

Click here for more information about laboratory operations and procedures

Gliadin Antibodies (IgG and IgA)

Item Value
Approval req'd? No
Available Stat? No
Test code GLIA
Performed by Immunology
In House Availability Friday (day shift)
Method EIA
Container type Gold top
Amount to Collect 2 mL blood
Sample type Serum
Preferred volume 1 mL serum
Min. Volume 0.5 mL serum
Processing notes Freeze serum at -20°C
Units Units
Normal range Gliadin antibody (IgG)
Negative < 20 Units
Weak Positive 20-30 Units
Positive > 30 Units


Gliadin Antibody (IgA)
Negative < 20 Units
Equivocal 20-30 Units
Positive > 30 Units
Synonyms Celiac disease; gluten sensitive enteropathy; anti deamidated gliadin antibodies
Turn around times 2-9 days
Additional information Anti-gliadin antibodies are associated with Celiac Disease (also called gluten-sensitive enteropathy). IgG and/or IgA antibodies can be found, but generally, IgA antibodies are considered more specific for disease, while IgG antibodies are considered more sensitive. This assay uses the deamidated form of gliadin as a substrate, which is considered to have greater diagnostic accuracy in comparison with traditional assays. Testing for antibodies to TTG (tissue transglutaminase) are usually performed in addition to testing for antibodies to gliadin.

Note: Since IgA deficiency is common in patients with celiac disease, serum IgA levels may be useful in patients with negative results for the IgA anti-gliadin assay.
LOINC code 57776-7
Last Updated 7/17/2013 9:14:10 AM
Entry Number 420

If you have additional questions regarding this test, please call: 415-353-1667

Search Our Test Menu
UCSF home page UCSF home page About UCSF Search UCSF UCSF Medical Center