GPT and myasthenia gravis: As shown in Figure 3A,B, serum ALT and AST were up-regulated by 0.0774 U/mL and 0.2567 U/mL in the MG group compared with the CK group, with up-regulation percentages of 26.15% (p > 0.05) and 17.95% (p < 0.05), respectively.