Food additive in cheese, bread could cause celiac disease
A common food additive, used in sausages, cheese, bread, dairy, baked and other processed foods, could both cause and trigger celiac disease, warns a recent study. Celiac disease is an autoimmune disorder, where gluten triggers the immune system to attack the gut.
The study showed that celiac disease could be caused by a bacterial enzyme named microbial transglutaminase, which is heavily used in the food processing industries to ameliorate food qualities and elongate products' shelf life.
"Microbial transglutaminase can glue together proteins, so it's used to improve food texture, palatability and shelf-life," said Aaron Lerner, visiting professor at the Aesku.Kipp Institute in Germany. "This enzyme functions like the transglutaminase produced by our body, which is known to be the target of autoimmunity in celiac disease," Lerner added.
Microbial transglutaminase could, in fact, be the target of the immune response in celiac disease and its presence in processed foods is, therefore, a potential environmental cause of celiac disease, said the study, published in the journal Frontiers in Pediatrics.
To test whether this enzyme causes or triggers immune damage in celiac disease will require experimenting with exposure in animal models, intestinal cell lines or biopsies. As there is no known cure for celiac disease, the treatment depends on adhering to a gluten-free diet. Until there is a clearer answer, transparency and vigilance with regards to labelling of foods processed using microbial transglutaminase is recommended, Lerner suggested.
The study also suggested a plethora of environmental components that influence celiac disease, spanning infections, food, drugs, vaccination, toxins and metals, abdominal or gynaecological surgery, level of hygiene, socioeconomic status, lifestyle stress and processed food additives.
(With inputs from agencies.)
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