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Int J Radiat Oncol Biol Phys. 1984 Aug;10(8):1447-51.

Differing sensitivity to fluorescent light in Chinese hamster cells containing equally incorporated quantities of BUdR versus IUdR.

Abstract

Chinese hamster V79 cells that had incorporated approximately equal levels of either BUdR or IUdR into their DNA were found to be equal sensitizers to X rays. However, BUdR-substituted cells were much more sensitive to fluorescent light than IUdR-substituted cells, both on a cell survival basis and by the initial number of single strand DNA breaks induced. Since a major toxicity to the use of BUdR clinically has been light-induced skin rash, these data indicate that the use of IUdR clinically might cause less untoward toxicity but yet provide the same radiosensitization as BUdR.

PMID:
6469768
DOI:
10.1016/0360-3016(84)90366-3
[Indexed for MEDLINE]

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