Frequency of Anti-Transglutaminase Iga antibodies in outpatients from the interior of Rio Grande Do Sul

Authors

DOI:

https://doi.org/10.17058/rips.v7isuplemento.18970

Keywords:

Antibodies, Celiac Disease, Serology

Abstract

Introduction: anti-tissue transglutaminase IgA (anti-tTG IgA) is a specific type of antibody produced in response to the presence of the tissue transglutaminase enzyme. The detection of these elevated antibodies in the blood is a sign of immunological activity and may be indicative of the presence of celiac disease (CD). Objective: analyze the frequency of tests for anti-tTG IgA in patients treated at the gastroenterology outpatient clinic of a teaching hospital in the interior of Rio Grande do Sul. Method: retrospective observational study with analysis of medical records of patients treated at the gastroenterology outpatient clinic, from March 2010 to December 2022. For data collection, the variables were analyzed: age, sex, and presence of anti-tTG IgA. Results: the records of 683 patients treated at the gastroenterology outpatient clinic were analyzed, of which 46 had information recorded about the anti-tTG IgA test due to suspected celiac disease. All test results were negative (anti-IgA less than 20.0 U), which suggests the absence of IgA immunoglobulins related to CD in the patients evaluated. Conclusion: despite being highly sensitive, the absence of anti-tTG IgA does not exclude the diagnosis of CD, considering that all celiac patients submitted to analysis at the outpatient clinic had anti-TGA levels lower than 20.0 U/L. IgA deficiency in celiac patients and changes in diet can alter serology, making it necessary to include other more specific serological variables and a biopsy to analyze the villi for greater specificity in detecting gluten autoimmunity. Furthermore, to find the correct frequency of the population in question, a population study with a significant sample is necessary and, in this research, only a retrospective analysis of medical records was carried out.

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Author Biographies

Gabriela dos Santos Diehl, Universidade de Santa Cruz do Sul

Acadêmica, Medicina, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brasil.

Amanda Gabriela Wachter Motta, Universidade de Santa Cruz do Sul, Santa Cruz do Sul

Acadêmica, Medicina, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brasil.

Ingrid Pilz, Universidade de Santa Cruz do Sul, Santa Cruz do Sul

Acadêmica, Medicina, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brasil.

Victória Ribeiro, Universidade de Santa Cruz do Sul, Santa Cruz do Sul

Acadêmica, Medicina, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brasil.

Candice Franke Krumel, Universidade de Santa Cruz do Sul, Santa Cruz do Sul

Mestre, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brasil.

Caroline Wallau Fontana, Universidade de Santa Cruz do Sul

Acadêmica, Medicina, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brasil.

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Published

2024-09-06

How to Cite

dos Santos Diehl, G., Wachter Motta, A. G., Pilz, I., Ribeiro, V. ., Franke Krumel, C. ., & Wallau Fontana, C. . (2024). Frequency of Anti-Transglutaminase Iga antibodies in outpatients from the interior of Rio Grande Do Sul. Revista Interdisciplinar De Promoção Da Saúde, 7(suplemento), 9-13. https://doi.org/10.17058/rips.v7isuplemento.18970