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胚胎种植前诊断中胚胎活检的动物实验研究

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摘要 目的 :以小鼠胚胎为材料进行种植前遗传学诊断 (preimplantationgeneticdiagnosis ,PGD)胚胎活检 (Biop sy)的临床前研究。方法 :通过输卵管冲洗 ,获得 4~ 8细胞期胚胎 ,用机械法分别对 4、8细胞的胚胎进行活检 ,然后继续培养 ,观察其囊胚形成及孵出情况并进行比较。结果 :活检胚胎的囊胚形成率 ( 4细胞期 78 8% ,n =6 6 ;8细胞99 0 % ,n =10 0 )、囊胚孵出率 ( 4细胞期 84 6 % ,n =5 2 ;8细胞 94 9% ,n =99)与未活检对照组比较差异无显著意义(P >0 0 5 )。结论 :在小鼠胚胎 4细胞或 8细胞期进行单个卵裂球活检 ,不影响胚胎的进一步发育。机械法是一种较好的胚胎活检方法。
出处 《实用医学杂志》 CAS 2002年第3期239-241,共3页 The Journal of Practical Medicine
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