Omega-Gliadin-17-mer IgA
Optimal Result:
0.2 - 1.7 ELISA Index.
The Omega-Gliadin-17-mer peptide is a highly immunogenic fragment of gliadin, a component of gluten, and measuring IgA antibodies against it can help identify mucosal immune responses, especially in the gut. Elevated levels of Omega-Gliadin-17-mer IgA may indicate non-celiac gluten sensitivity, early-stage celiac disease, or other forms of gluten-related disorders, even in individuals who test negative for traditional celiac markers. Because IgA is the primary immunoglobulin found in mucosal areas like the intestines, this test is particularly useful for uncovering immune activation in the gut lining due to gluten exposure.
Lab Results Explained and Tracked
What does it mean if your Omega-Gliadin-17-mer IgA result is too high?
Elevated levels of Omega-Gliadin-17-mer IgA indicate that the immune system is producing IgA antibodies against a specific, highly reactive segment of gliadin, a protein found in gluten. This suggests that the body is mounting a mucosal immune response to gluten, which may reflect:
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Early-stage or atypical celiac disease, even before villous atrophy is detectable
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Non-celiac gluten sensitivity (NCGS), where symptoms and immune responses occur without full-blown autoimmune damage
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Intestinal permeability (leaky gut), which allows gluten peptides to cross the gut barrier and trigger immune activation
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Ongoing or recent gluten exposure in individuals who may be sensitive or attempting a gluten-free diet
In short, elevated Omega-Gliadin-17-mer IgA points to an abnormal immune reaction to gluten at the intestinal mucosal level, warranting further evaluation, especially if gastrointestinal or autoimmune symptoms are present.
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