Development of resistance to chloroform toxicity in male BDF1 mice exposed to a stepwise increase in chloroform concentration.
- 1 January 1999
- journal article
- Published by Japanese Society of Toxicology in The Journal of Toxicological Sciences
- Vol. 24 (5) , 421-424
- https://doi.org/10.2131/jts.24.5_421
Abstract
To investigate the development of resistance to chloroform toxicity, a 4-week inhalation study was conducted in which BDF1 male mice were exposed to a low level of chloroform for an initial two-week period, and thereafter the exposure concentration was increased for a second two-week period. The animals were exposed to inhalation of chloroform vapor 6 hr per day, 5 days per week, with clinical observation and measurement of body weight conducted. These results demonstrate that pre-exposure to chloroform at a low dose level induced resistance to a higher dose of chloroform in male mice. This resistance was dependent on the pre-exposure concentration.Keywords
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