Año 2019 / Volumen 111 / Número 2
Submission and tracking of manuscripts
Instructions to authors

Submission and tracking

SED 2019

SED 2019

Spanish Week of Digestive Diseases 2019

More Information

REED Journal

REED Journal

Play video

Año 2019 / Volumen 111 / Número 2

Original

Detection and quantification of gluten immunogenic peptides in feces of infants and their relationship with diet

106-110

María Roca, Ester Donat, Etna Masip, Paula Crespo Escobar, Victoria Fornes-Ferrer, Begoña Polo, Carmen Ribes-Koninckx,

Background: there are no effective methods to easily control the correct adherence to a gluten-free diet (GFD) in celiac disease (CD) patients. Aim: to assess the sensitivity and specificity of a rapid immunochromatographic (IC) test that detects gluten immunogenic peptides (GIP) in feces, compared to an enzyme-linked immunosorbent assay (ELISA) method. Methods: fecal samples from healthy infants were analyzed by a rapid IC test and ELISA, both methods are based on the anti-gliadin 33-mer monoclonal antibody. Group 1 included infants aged from 6 to 24 months, with an unrestricted consumption of gluten containing cereals. Group 2 (negative controls) was comprised of infants aged from 0 to 6 months, either breastfed or formula fed who had never ingested gluten. Results: in group 1 (n = 34), all infants had positive values by ELISA, the mean was 13.13 μgGIP/g (range 0.56-46.79). The IC test was negative in 5/20 cases and there was a significant correlation (p=0.006) between the mean daily gluten intake and GIP in feces. In group 2 (n = 20), all the samples were negative by both methods. Moreover, the Kappa Fleiss concordance index (Kappa = 0.79 CI95% [0.616, 0.965]) indicated a moderate concordance between both methods. Conclusions: according to our results, both methods are highly specific. However, the ELISA test had a higher sensitivity. Although we found a significant correlation between the amount of gluten consumed and GIP recovery in feces, further studies are needed to clarify the impact of individual confounding factors in GIP recovery.

Valoración del lector: Valora este artículo:
Share Button
Enviar por e-mail

Nuevo comentario


Código de seguridad:
CAPTCHA code image
Speak the codeChange the code
 

Comentarios

No hay comentarios para este artículo.
Asociación Española de Ecografía Digestiva Sociedad Española de Endoscopia Digestiva Sociedad Española de Patología Digestiva
The Spanish Journal of Gastroenterology is the official organ of the Sociedad Española de Patología Digestiva, the Sociedad Española de Endoscopia Digestiva and the Asociación Española de Ecografía Digestiva
© 2019 The Spanish Journal of Gastroenterology