BALB/c mice and human intestinal epithelial cells were irradiated to different doses by Co γ-rays. They60were sampled for chromosome pattern analysis, intestinal morphology, and a number of other biomedical tests toinvestigate mechanisms of acute intesti BAL60 / c mice and human intestinal epithelial cells were irradiated to different doses by Co γ-rays. They60were sampled for chromosome pattern analysis, intestinal morphology, and a number of other biomedical tests to investigate mechanisms of acute intesti