GPT and autoimmune hepatitis: Our preliminary data implicates that treatment with ATP tended to suppress the elevations of serum liver damage markers (glutamic oxaloacetic transaminase and glutamic pyruvic transaminase levels) in ConA-treated mice which is known as an autoimmune hepatitis model (Tiegs et al., 1992) (data not shown), suggesting that pretreatment with ATP might attenuate the acute liver damage, though the effect of ATP on actual liver damage should be carefully evaluated by liver histology in the mice in future study.