Thank you for asking follow up question.
In celiac disease, the body produces two types of antibodies
that attack tTG: immunoglobulin A (IgA) and immunoglobulin G (IgG).
tTG (anti-tissue transglutaminase)-IgA test is very specific to celiac disease, meaning that if you have a positive tTG, it’s very likely that you have celiac disease and not another condition.
AGA (antigliadin antibodies)-IgG is another antigliadin test and is less specific to celiac disease, but it may be useful in detecting gluten sensitivity or leaky gut
These tests are not sure specific tests but along with clinical symptoms,they help greatly to reach to the final conclusion.
Hope this helped.
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