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Genetic testing cannot be used to diagnose celiac disease but it can be used to rule it out and also to establish the potential to develop celiac disease. About 40% of the general population has the genetic potential to develop celiac disease but only about 1% actually develop it. To develop celiac disease when you have the genetic potential also requires some kind of trigger to turn the latent genes "on", as it were. The trigger can be a lot of things and is the big mystery component of the celiac disease puzzle at this point in time with regard to the state of our knowledge. Your IGA serum score would seem to indicate you are not IGA deficient and your tTG-IGA score looks to be in the normal range but in the future please include the reference ranges for negative vs. positive because different labs used different reference ranges. There is no industry standard.
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By Scott Adams · Posted
Since nearly 40% of the population have the genes for celiac disease, but only ~1% end up getting it, a genetic test will only tell you that it is possible that you could one day get celiac disease, it would not be able to tell whether you currently have it or not. -
so much to it. the genetic testing will help if i don’t have it right? If theres no gene found then I definitely don’t have celiac? I guess genetic testing, plus ruling out h.pylori, plus gluten challenge will be a good way to confirm yes or no for celiac.
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By Scott Adams · Posted
With NCGS there isn't villi damage, so it would not be detected via an endoscopy/biopsy. There also may not be high levels of tTG-IgA or tTG-IgG (sometimes they can be elevated, but in the normal range), but these blood tests may be slightly elevated or even high in people with NCGS: DGP-IgA and DGP-IgG (Deamidated Gliadin Peptide), but, you can still have it even if all of these tests are normal. -
That all makes sense thank you. I was within normal ranges - a little on the lower end. So, the NCGS would still show positive biopsy?
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