CD79A and dermatitis herpetiformis, familial: Dahlbom et al. [23] analysed whether the quantification of autoantibodies against tissue transglutaminase could be used to predict mucosal destruction and disease severity in patients with gluten sensitivity, hence they found that high levels of IgA-tTG and IgG-tTG antibodies were associated with the grade of mucosal villous atrophy and a more severe clinical presentation, as in DH patients.