Deamidated Gliadin Peptide IgA

The Deamidated Gliadin Peptide IgA test is used to aid in the diagnosis of celiac disease, an autoimmune disorder that occurs in people who are intolerant to gluten, a protein found in wheat, barley, and rye. This test measures the level of IgA antibodies against deamidated gliadin peptides, which are formed when gluten is partially broken down in the digestive system. Elevated levels of these antibodies indicate an immune response to gluten, which can lead to damage to the lining of the small intestine, malabsorption of nutrients, and other health problems associated with celiac disease. The test can also be used to monitor adherence to a gluten-free diet and to detect the presence of celiac disease in individuals who have a high risk of developing the disease, such as those with a family history of the condition.