Our study employed micronucleus test in mouse bonemarrow cells to detect the genotoxicity of a crudeChinese herb:the water-extract of Tripterygiumhypoglaucum(Level.)Hutch(THH)which has been usedfor treatment of some human immune diseases.Eachgroup included 5 male and 5 female treated mice and2 animals with both sex for control group.The
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