Six week-old ICR mice which were divided into four groups including NC, RC, RR and RS were injected with sun ginseng (RS), red ginseng (RR) and saline (RC) intraperitoneally as an amount of 60 ㎎/㎏ body weight at 1 hour, 12 hours and 36 hours before the irradiation of high-energy X-ray and the mice were sacrificed at three and a half days after the irradiation. The RS group were significant increase in the weight of spleen (p＜0.01) and the numbers of jejunal crypt cells (p＜0.01), WBC (p＜0.05), lymphocytes (p＜0.05) and neutrophils (p＜0.05) in comparison with the RC group. The RR group were significant increase in the numbers of jejunal crypt cells (p＜0.001), WBC(p＜0.05) and neutrophils (p＜0.05) in comparison with the RC group. The RS group exhibited a more increase in the weights of spleen and thymus and the numbers of jejunal crypt cells and all items of hematological examination than the RR group. The values of ALT (alanine transaminase) and AST (aspartate transaminase) were significantly elevated (p＜0.05) by radiation and they were significantly decreased (p＜0.05) in the RS group to the values of the NC group. Taken together the above results, sun ginseng demonstrated a jejunal crypt survival effect, the protective effects on hepatocytes and immune and hematopoietic cells in mice irradiated with high-energy X-ray, and those radiation protective effects were a little higher in comparison with red ginseng.
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