Deamidated Gliadin Antibodies, IgA

CPT: 86258
Print Share

Synonyms

  • DGP, IgA

Expected Turnaround Time

2 - 3 days


Related Documents


Specimen Requirements


Specimen

Serum


Volume

1 mL


Minimum Volume

0.3 mL (Note: This volume does not allow for repeat testing.)


Container

Red-top tube or gel-barrier tube


Collection

Specimen should be free of bacterial contamination, hemolysis, and lipemia.


Storage Instructions

Room temperature


Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3


Causes for Rejection

Hemolysis; lipemia; gross bacterial contamination


Test Details


Use

Detection of gliadin antibodies aids in the diagnosis and monitoring of certain gluten-sensitive enteropathies, such as celiac disease and dermatitis herpetiformis


Methodology

Enzyme immunoassay (EIA)


Additional Information

A negative IgA result in an untreated patient does not rule out gluten-sensitive enteropathies, especially when associated with IgG gliadin antibodies. This can be explained by selective IgA deficiency, a relatively frequent finding in celiac disease. False-positives are possible as other gastrointestinal disorders are known to induce circulating antigliadin antibody, mainly Crohn disease, food protein intolerance, and postinfection malabsorption.


References

Burgin-Wolff A, Gaze H, Hadziselimovic F, et al. Antigliadin and antiendomysium antibody determination for coeliac disease. Arch Dis Child. 1991 Aug;66(8):941-947.1819255
Collin P, Maki M, Keyrilainen O, Hällström O, Reunala T, Pasternack A. Selective IgA deficiency and coeliac disease. Scand J Gastroenterol. 1992 May;27(5):367-371.1529270
Kelly CP, Feighery CF, Gallagher RB, Gibney MJ, Weir DG. Mucosal and systemic IgA antigliadin antibody in celiac disease: Contrasting patterns of response in serum, saliva, and intestinal secretion. Dig Dis Sci. 1991 Jun;36(6):743-751.2032515
McMillan SA, Haughton DJ, Biggart JD, Edgar JD, Porter KG, McNeill TA. Predictive value for coeliac disease of antibodies to gliadin, endomysium, and jejunum in patients attending for jejunal biopsy. BMJ. 1991 Nov 9;303(6811):1163-1165.1747612

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
161646 Antigliadin Abs, IgA 58709-7 161652 Deamidated Gliadin Abs, IgA units 58709-7

For Providers

Please login to order a test

Order a Test

© 2021 Laboratory Corporation of America® Holdings and Lexi-Comp Inc. All Rights Reserved.

CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf