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Kinetics of in vivo sister chromatid exchange induction in mouse bone marrow cells by alkylating agents: cyclophosphamide

Journal Article · · Environ. Manage.; (United States)
Administration of cyclophosphamide (5, 10, 20 and 25 mg/kg body weight) to male CD-1 mice 2 hr after subcutaneous implantation of a 5-bromo-2'-deoxyuridine (BrdUrd) pellet (55 mg) resulted in a dose-dependent increase in sister chromatid exchanges (SCE) in bone marrow cells. Treatment with cyclophosphamide (15 mg/kg body weight) at the time of BrdUrd implantation and 2, 6, 5, and 13 hr post-BrdUrd implantation resulted in the induction of approximately 19 SCE/cell indicating that the bone marrow SCE response was independent of the time of administration. Treatment with cyclophosphamide (15 mg/kg body weight) at 26, 29, 13, and 6 hr prior to BrdUrd implantation resulted in baseline SCE (3.3 SCE/cell) at 26 hr with an increasing number of SCE/cell with decreasing time prior to BrdUrd implantation.
OSTI ID:
5073726
Journal Information:
Environ. Manage.; (United States), Journal Name: Environ. Manage.; (United States) Vol. 5:6; ISSN EMNGD
Country of Publication:
United States
Language:
English