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- Glycominds
- IBDX
Test Includes
Antichitobioside carbohydrate antibodies (ACCA); antilaminaribioside carbohydrate antibodies (ALCA); antimannobioside carbohydrate antibodies (AMCA); anti-Saccharomyces cerevisiae antibodies (ASCA)
Expected Turnaround Time
3 - 7 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Information
Related Documents
For more information, please view the literature below.
Bowel Disorders Evaluation Rule-out Cascade: Applying Exclusionary Criteria to Assist Diagnosis
Specimen Requirements
Specimen
Serum
Volume
1 mL
Minimum Volume
0.2 mL (Note: This volume does not allow for repeat testing.)
Container
Red-top tube or gel-barrier tube
Storage Instructions
Room temperature
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x4 |
Causes for Rejection
Hemolysis; lipemia; heat-treated specimen; gross bacterial contamination
Test Details
Use
Prognostic aid for use in the clinical management of patients who have been diagnosed with Crohn's disease.
Limitations
The absence of antibody reactivity in this panel, although associated with increased incidence of a more benign course, does not preclude the future development of more complicated disease or need for surgery.1
Methodology
Enzyme immunoassay (EIA)
Additional Information
The presence and increasing titer of these antibodies has been shown to correlate with a more complicated disease course (strictures or fistulas) or the need for surgery. The antibodies included in the panel are ASCA (anti-Saccharomyces cerevisiae antibodies), ALCA (antilaminaribioside carbohydrate antibodies), ACCA (antichitobioside carbohydrate antibodies), and AMCA (antimannobioside carbohydrate antibodies).1-3 Numerous studies of CD have demonstrated an association between ileal disease and the presence of ASCA,1-7 ACCA,1 ALCA,1,3 and AMCA.3 Among these antibodies, the association with localization to the small intestine increased with the number of positive antibodies and with the concentration of individual antibodies.1-3,6,8 A more aggressive or complicated disease course in CD (as indicated by stricturing or perforation of the intestine or need of surgery), has also been associated with the presence of ASCA,1-3,5,7 ALCA,1-3 ACCA,1,2 and AMCA.1,2 Among these antibodies, the association with complicated disease behavior or surgery increased with the number and concentration of antibodies.1,2,6,8
Footnotes
1. Ferrante M, Henckaerts L, Joossens M, et al. New serological markers in inflammatory bowel disease are associated with complicated disease behavior. Gut. 2007 Oct; 56(10):1394-1403. 17456509
2. Papp M, Altorjay I, Dotan N, et al. New serological markers for inflammatory bowel disease are associated with earlier age at onset, complicated disease behavior, risk for surgery, and NOD2/CARD15 genotype in a Hungarian IBD cohort. Am J Gastroenterol. 2008 Mar; 103(3):665-681. 18047543
3. Dotan I, Fishman S, Dgani Y, et al. Antibodies against laminaribioside and chitobioside are novel serologic markers in Crohn's disease. Gastroenterology. 2006 Aug; 131(2):366-378. 16890590
4. Vasiliauskas EA, Plevy SE, Landers CJ, et al. Perinuclear antineutrophil cytoplasmic antibodies in patients with Crohn's disease define a clinical subgroup. Gastroenterology. 1996 Jun; 110(6):1810-1819. 8964407
5. Vasiliauskas EA, Kam LY, Karp LC, Gaiennie J, Yang H, Targan SR. Marker antibody expression stratifies Crohn's disease into immunologically homogeneous subgroups with distinct clinical characteristics. Gut. 2000 Oct; 47(4):487-496. 10986208
6. Arnott ID, Landers CJ, Nimmo EJ, et al. Sero-reactivity to microbial components in Crohn's disease is associated with disease severity and progression, but not NOD2/CARD15 genotype. Am J Gastroenterol. 2004 Dec; 99(12):2376-2384. 15571586
7. Walker LJ, Aldhous MC, Drummond HE, et al. Anti-Saccharomyces cerevisiae antibodies (ASCA) in Crohn's disease are associated with disease severity but not NOD2/CARD15 mutations. Clin Exp Immunol. 2004 Mar; 135(3):490-496. 15008984
8. Mow WS, Vasiliauskas EA, Lin YC, et al. Association of antibody responses to microbial antigens and complications of small bowel Crohn's disease. Gastroenterology. 2004 Feb; 126(2):414-424. 14762777
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 162020 | Crohn's IBDX Prognostic Panel | 53598-9 | 162021 | gASCA | units | 47321-5 |
| 162020 | Crohn's IBDX Prognostic Panel | 53598-9 | 162022 | ACCA | units | 53594-8 |
| 162020 | Crohn's IBDX Prognostic Panel | 53598-9 | 162023 | ALCA | units | 53596-3 |
| 162020 | Crohn's IBDX Prognostic Panel | 53598-9 | 162025 | AMCA | units | 53597-1 |
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