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Old 04-25-2018, 05:36 AM  
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Join Date: Aug 2006
Location: Queens, NY
Posts: 2,766
Default What tests are you actually referring to?

Are you speaking of anti-gliadin IgG/IgA, anti=transglutaminase IgG/IgA, or total IgG/IgA?

Anti-gliadin IgG is often the first test to go outside the range with gluten sensitivity, but it's also the least specific test for celiac among those in a standard gluten panel. The anti-transglutaminase IgA is generally the one most correlated with actual intestinal damage, but even that one is negative in around 20 percent of those people who actually show confirmed villious damage on endoscopy.
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