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The a-DGP (deamidated gliadin peptide) IgG test is used to detect specific IgG antibodies against deamidated gliadin, a component of gluten. This test is primarily used when celiac disease is suspected, especially in individuals with IgA deficiency, where standard tests (such as anti-tTG IgA) may not be reliable. The presence of these IgG antibodies may indicate an immune system sensitivity to gluten and serves as an important supplementary marker in the diagnosis of celiac disease.Zeptat se služby ChatG
The a-IA2 IgG test is used to identify the autoimmune origin of diabetes, particularly type 1 diabetes, and is primarily applied in children, adolescents, and young adults. It detects IgG-class antibodies directed against the IA-2 enzyme (a tyrosine phosphatase) found on the surface of pancreatic beta cells. The presence of these antibodies indicates that the immune system is attacking its own insulin-producing cells. This test helps distinguish autoimmune diabetes from other types of diabetes.