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Antibody levels in adult patients with coeliac disease during gluten-free diet: a rapid initial decrease of clinical importance
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2004 (English)In: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 256, no 6Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: Analysis of antibodies against tissue transglutaminase (tTG) has been shown valuable in the diagnosis of coeliac disease (CD) but how quickly serum titres decrease after introduction of a gluten-free diet (GFD) is not known in adults. CD is a well-recognized disorder amongst the general population and many persons try a GFD for fairly vague symptoms before they seek medical advice. Therefore, it is important to determine the time that the serologic tests remain predictive of the disease after the introduction of a GFD.

METHODS: Sera were taken from 22 consecutively biopsy-proven adult patients with CD in connection with the diagnostic biopsy. The patients were followed for 1 year and sera were taken after 1, 3, 6 and 12 months after start of a GFD. Sera were stored at -20 degrees C and analysed for IgA antibodies against gliadin, endomysium and two different commercial tTG assays based on recombinant human tTG (tTGrh) and guinea-pig liver (tTGgp).

RESULTS: Twenty patients could be followed during GFD and all antibody titres fell sharply within 1 month after introduction of a GFD and continued to decline during the survey interval. Thirty days after beginning the diet only 58, 84, 74 and 53% of all patients had positive antibody levels of tTGrh, tTGgp, EmA and AGA respectively.

CONCLUSIONS: As the antibodies used to confirm the diagnosis of CD fall rapidly and continue to decline following the introduction of a GFD, it is important that health care providers carefully inquire about the possibility of self-prescribed diets before patients sought medical attention.

Place, publisher, year, edition, pages
2004. Vol. 256, no 6
National Category
Immunology in the medical area
URN: urn:nbn:se:uu:diva-278701DOI: 10.1111/j.1365-2796.2004.01406.xPubMedID: 15554953OAI: oai:DiVA.org:uu-278701DiVA: diva2:906861
Available from: 2016-02-25 Created: 2016-02-25 Last updated: 2016-02-25

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Dahlbom, IHansson, Tony
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