CD79A and Crohn disease: In the present study, we screened the sera of patients with gluten-sensitivity/celiac disease and Crohn's disease for the presence of IgG and IgA antibodies against both alcohol- and water-soluble components of wheat, α-gliadin-33-mer, -17-mer, γ-gliadin-15-mer, ω-gliadin-17-mer, and glutenin-21-mer.