GPT and neoplasm: While ALT values of 177Lu-treated tumor-bearing (60.8 ± 25.4) and naïve mice (35.3 ± 12.4 U/L, p = 0.07) were similar, that of 225Ac-treated tumor-bearing (345 ± 166 U/L) and naïve animals (87.2 ± 52.9 U/L, p = 0.008) differed significantly.