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Related Experiment Video

Updated: Apr 23, 2026

A High-Throughput Multiplexed Screening for Type 1 Diabetes, Celiac Diseases, and COVID-19
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Digesting all the options: laboratory testing for celiac disease.

Vilte E Barakauskas1, Grace Y Lam, Mathew P Estey

  • 1DynaLIFEDx , Edmonton, Alberta , Canada and.

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|September 23, 2014
PubMed
Summary
This summary is machine-generated.

Celiac disease diagnosis is evolving beyond invasive biopsies. This review examines laboratory tests, including antibody and genetic markers, for diagnosing and monitoring this immune disorder.

Keywords:
Biopsydeamidated gliadin peptideendomysial antibodygliadinglutenhuman leukocyte antigen DQ2 and DQ8serologytissue transglutaminase

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Area of Science:

  • Immunology
  • Gastroenterology
  • Medical Diagnostics

Background:

  • Celiac disease is an immune-mediated condition triggered by gluten in susceptible individuals.
  • Gluten peptides, after deamidation by tissue transglutaminase (TTG), become immunogenic, leading to intestinal damage and diverse symptoms.
  • Traditional diagnosis relies on invasive small intestine biopsy, which has limitations.

Purpose of the Study:

  • To review the analytical methodology, strengths, weaknesses, and clinical utility of laboratory tests for celiac disease diagnosis and monitoring.
  • To discuss current and potential future diagnostic markers, including obsolete tests.
  • To summarize and compare clinical practice guidelines for celiac disease diagnosis.

Main Methods:

  • Review of serological tests (anti-endomysial, anti-TTG, anti-DGP antibodies - IgA/IgG).
  • Evaluation of genetic tests for human leukocyte antigen (HLA) DQ status.
  • Analysis of ancillary tests like total IgA and comparison with biopsy findings.

Main Results:

  • Laboratory tests offer valuable aid in celiac disease diagnosis and monitoring.
  • Serological and genetic tests show varying diagnostic performance and clinical utility.
  • Guidelines from major gastroenterology organizations offer differing perspectives on the role of laboratory tests versus biopsy.

Conclusions:

  • Laboratory tests are increasingly important for celiac disease diagnosis, complementing or potentially replacing biopsy in select cases.
  • Understanding the strengths and limitations of each test is crucial for accurate diagnosis and management.
  • Harmonization of diagnostic guidelines and continued research into novel biomarkers are essential.