Brown, S. L., Kolozsvary, A., Liu, J., Ryu, S. and Kim, J. H. Histone Deacetylase Inhibitors Protect against and Mitigate the Lethality of Total-Body Irradiation in Mice. Radiat. Res. 169, 474–478 (2008).

It was hypothesized that histone deacetylase (HDAC) inhibitors may increase survival after total-body irradiation (TBI) based on previous reports demonstrating that HDAC inhibitors stimulate the proliferation of bone marrow stem cells. Using the time for mice to lose 20% or more of their weight as the end point, two HDAC inhibitors, valproic acid and trichostatin-A, were found to reduce lethality in a dose-dependent manner. HDAC inhibitors were effective at reducing lethality when given either 24 h before or 1 h after TBI. The results indicate that HDAC inhibitors have potential for protecting against and mitigating radiation-induced lethality.

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