TPO and pemphigus: In contrast, the T1 levels of anti-TPO Abs (0.21 ABI with a range from 0.04 to 1.83 ABI), anti-m3AChR Abs (3.2 U/mL with a range from 0.8 to 9.6 U/mL) and anti-VZV Abs (2.40 ABI with a range from 0.12 to 5.5 ABI), were not significantly different in pemphigus patients from the normal controls.