IgG and IgA Abs specific for ovalbumin, wheat, milk, S. cerevisiae-derived mannan, E. coli lysate, and B. fragilis lysate were quantified by ELISA in the serum of patients suffering from CD, UC, patients with non-IBD acute gastroenteritis/colitis (AGE) as well as age-matched controls without inflammation in the gastrointestinal tract. The gene discussed is DDX41; the disease is colitis.