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Biomarkers
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Heart & Vascular Health

Tissue Transglutaminase Ab (2) Test

Available only in New York and New Jersey
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Tissue Transglutaminase Antibody, IgA (tTG-IgA), is an autoantibody produced when the immune system reacts abnormally to gluten - a protein found in wheat, barley, and rye.

Last updated
June 8, 2026

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