GPT and hypohidrotic ectodermal dysplasia: The plasma ALT level, well documented as a marker of hepatocyte damage, was significantly (p < 0.001) elevated in HED groupe II, whereas administration of 3,5-T2 to group III prevented this increase (23.9 ± 1.47 versus 81.3 ± 1.71 IU/L in placebo groups).