雷藤氯内酯和雷公藤内酯酮对大鼠骨髓细胞染色体与微核的影响

目的 :观察雷藤氯内酯 (T4)和雷公藤内酯酮 (T7)对SD雄性大鼠骨髓细胞染色体与微核的影响 ,了解其抗生育时的安全性。　方法 :雄性SD大鼠 ,随机分为用药组 (T4、T7)和阴性对照组 3组 ,每组 10只。用药组大鼠灌服抗生育剂量T4为 80 μg/ (kg·d)或T7为 317μg/ (kg·d) ,连续用药 10周后采用骨髓细胞染色体和微核制片方法进行分析 ,阴性对照组给等量的载体 (1%羧甲基纤维素钠 )。　结果 :用药组与对照组比较 ,3组之间骨髓细胞染色体畸变平均值差异无显著性 (P >0 .0 5 ) ;骨髓细胞微核出现率差异也无显著性 (P >0 .0 5 )。　结论 :提示抗生育剂量的T4和T7在对SD大鼠遗传学影响方面无明显的诱变作用。

Effects of Chlorotriptolide and Triptonide on Chromosome Aberration and Micronuclei of Bone Marrow Cell in Male Rats

OBJECTIVES: To observe the effects of chlorotriptolide (T4) and triptonide (T7) on the chromosome aberration and micronuclei rates of bone marrow cell in male SD rats. METHODS: Antifertility doses of T480 micrograms/(kg.d)] or T7317 micrograms/(kg.d)] were given to male rats per OS for 10 weeks. Bone marrow slides were then prepared and compared with the controls. RESULTS: The chromosome aberration and micronuclei rates were not significantly different from those of the controls (P > 0.05). CONCLUSIONS: The results were in accordance with our previous reports about the effects of T4 and T7 on the chromosome aberration and micronuclei rates of rat spermatogenic cells. At the antifertility doses, T4 and T7 did not show a mutagenic effect.