采用同位素示踪、细胞周期分析和组化等技术, 研究Ce3+和Gd3+对动物正常二倍体细胞的生物学作用. 结果表明, Ce3+和Gd3+仅在一个狭窄的剂量范围(1×10-6～1×10-5 mol/L)可促进正常二倍体细胞增殖, 有明显的剂量-效应关系. Ce3+和Gd3+在高浓度时(1×10-3 mol/L), 对细胞具有毒性, 可使细胞坏死、增殖缓慢并诱导细胞凋亡.
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