CDD gene transfer increases granulocyte and thrombocyte nadir counts following cytarabine application. Nadir levels of peripheral blood granulocyte (A) and thrombocyte (B) counts (mean ± SEM; n = 5, 6, 5 animals for C1, C2, C3, respectively) following the first cytarabine treatment cycle (500 mg/kg, intraperitoneally, days 1-4) for 3 independent experiments are given. */** denotes significant differences (P < .05/.01) by Student t test.