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Effects of tanshinone IIA on the radiation-induced expression of p21 and p53. (A) The expression level of the p53/p21 genes was detected by qPCR. (B) p-p21/p-p53 was upregulated following irradiation, which was attenuated with tanshinone IIA treatment. The results are representative of three separate experiments. qPCR, quantitative PCR.
