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ULTIMO FASCICOLOMINERVA GASTROENTEROLOGICA E DIETOLOGICA

Rivista di Gastroenterologia, Nutrizione e Dietetica


Indexed/Abstracted in: CAB, EMBASE, PubMed/MEDLINE, Scopus, Emerging Sources Citation Index


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Minerva Gastroenterologica e Dietologica 2016 Nov 15

lingua: Inglese

Anti-gliadin antibodies in NCGS

Maria INFANTINO 1, Francesca MEACCI 1, Valentina GROSSI 1, Donatella MACCHIA 2, Mariangela MANFREDI 1

1 SOS Laboratorio Immunologia Allergologia, Ospedale San Giovanni di Dio, Firenze, Italy; 2 Allergologia, Immunologia Clinica, Ospedale San Giovanni di Dio, Firenze, Italy


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Although no biomarker has been identified to date, previous studies have reported that about 50% of patients with suspected Non Celiac Gluten Sensitivity (NCGS) had positive first generation anti- gliadin antibodies (AGAs), expecially of the IgG class. These antibodies are not specific for NCGS, being also found in CD (80-90%), autoimmune liver disorders (21.5%), connective tissue disease (9%) and IBS (20%), as well as in healthy controls (2-8%), but their finding in patients with a clinical phenotype consistent with NCGS has been regarded as an element supporting this diagnosis. Even if the correlation between AGA IgG and NCGS condition turned out to be statistically significant in most studies, AGA IgG doesn’t seem to be an adequately strong marker for its lacking diagnostic accuracy. However it can partly help the NCGS diagnosis, integrated in the overall management of the patient. Therefore, in the presence of clinical symptoms that suggest NCGS, IgG AGA positivity, together with negative anti-tTG, EMA, and anti deamidated gliadin peptides (DGP) antibodies, NCGS diagnosis might be suspected. Future researches are necessary to identify reliable biomarkers for NGCS diagnosis and to better define clinically and serologically NCGS patients.

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