TGM2 and celiac disease: In 100% of cases (n = 62) the diagnosis of celiac disease had been made by a medical specialist: the serum levels of anti-gliadin antibodies (AGA) had been measured in 58.1% of the cases of celiac disease (n = 36), anti-endomysial antibodies (AEA) had been assessed in 56.5% of celiac women (n = 35), and anti-transglutamminase antibodies (anti-tTG) had been dosed in 41.9% (n = 26) of them.