682 New Human Anti-tTG type IgA Test Kit is Highly Sensitive and Specific for the Detection of Celiac Disease - Celiac.com
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New Human Anti-tTG type IgA Test Kit is Highly Sensitive and Specific for the Detection of Celiac Disease

Celiac.com 06/25/2003 - Below is an abstract of yet another study that supports the use of human anti-tTG type IgA serological tests to accurately diagnose celiac disease:

Alimentary Pharmacology & Therapeutics
Volume 17 Issue 11 Page 1415 - June 2003
Antibodies to human recombinant tissue transglutaminase may detect coeliac disease patients undiagnosed by endomysial antibodies
N. Tesei*, E. Sugai*, H. Vázquez*, E. Smecuol*, S. Niveloni*, R. Mazure*, M. L. Moreno*, J. C. Gomez, E. Mauriño* & J. C. Bai*

Background: The screening and diagnosis of coeliac disease have been simplified by the advent of new serological tools.

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Aim: To assess the clinical utility of a newly developed kit for antibodies to human recombinant tissue transglutaminase (hu-anti-tTG) in a large population of patients undergoing intestinal biopsy for suspected intestinal disorders.

Methods: We evaluated 426 serum samples from consecutive adult patients (250 from untreated coeliac disease patients and 176 from individuals in whom a diagnosis of coeliac disease had been excluded), obtained at the time of intestinal biopsy. Samples were tested for immunoglobulin A (IgA) hu-anti-tTG by enzyme-linked immunoabsorbent assay, IgA endomysial antibodies (EmA) by indirect immunofluorescence and IgA and IgG antigliadin antibodies by enzyme-linked immunoabsorbent assay. A sub-group of samples was also assessed for a guinea-pig-based anti-tissue transglutaminase.

Results: According to the cut-off for hu-anti-tTG, the sensitivity, specificity and positive and negative predictive values were 91%, 96%, 97% and 87%, respectively. Simultaneous determination of EmA showed values of 86%, 100%, 100% and 83% for the same parameters. Although 19 coeliac disease patients (7.6%) were negative for EmA and hu-anti-tTG, both tests rendered superior statistical values to antigliadin antibody tests. At diagnosis, IgA deficiency was detected in 11 patients, but both assays were able to detect samples with mild to moderate deficiency. The comparison of hu-anti-tTG with EmA showed excellent concordance between the tests ( statistic, 0.85). Discordance was observed in 20 samples from coeliac disease patients (8%) and in nine samples from controls (5%). Fifteen samples had an EmA-negative but hu-anti-tTG-positive serology, and five showed the converse pattern. Comparison of human recombinant and guinea-pig tests showed concordant results in 96% of cases.

Conclusions: The quantitative determination of hu-anti-tTG type IgA using a commercial enzyme-linked immunoabsorbent assay kit was highly sensitive and specific for the detection of coeliac disease. Our results in a large population of patients with a clinical condition suggestive of the disorder demonstrated that the test can be used to detect a substantial number of patients otherwise unrecognized by IgA EmA.

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I workout, but with lighter weight than normal. I never go to failure. But being tired is not one my symptoms.

Well I took test for deficiencies today won't get the results till Tuesday then I can go from there.. road to recovery

Ask them for a copy of your results and find a good gastroenterologist in your area. Go there and give them the results. That's what I did. I didn't even bother with my GP. I got the results from the health fair and called a GI in Denver. My insurance didn't require a referral. My GI was the one who put me on the track to being accurately diagnosed. And regardless, you need to be hooked up with a good GI if you've got Celiac so that they can follow you.

Also, I had my bones checked a few months back (In January), and they were awesome. I'm still shocked at how well my body did with Celiac. I hear about all of my friends on here who had crazy horrible symptoms and I never did. I'm grateful. Because those ugly things would come eventually.

I work out regularly and I would say NO to working out if you have been glutened or are really tired. You know what happens to people who work out when they are really fatigued? They suffer injuries. I was not well enough to work out until I had been gluten free for 4 years but I am much older than you so I doubt it will take 4 years for you. Drop the work-outs for now and just go for walks outside when you feel better. The fatigue has to be better before you try to do gym work. I know you didn't want to hear that but I don't want you to end up injured, on top of everything else. Take care of yourself for now and let yourself heal!