A comparison of the levels of alanine transaminase (ALT) at post-HSCT days 1 and 7. ALT (IU/L) increased according to the cumulative iron dose. The ALT in mice that have been loaded with 200 mg of iron was highest among all the other groups at post-HSCT day 7 (P<0.01). All mice received 1,100 cGy (N=6). ^a)P<0.01 in t-test, ^b)P<0.01 in ANOVA.