【摘要】 绒毛细胞直接制备染色体是一种新的、快速的孕早期产前诊断染色体疾病的好方法。本文报道了120例人工流产前的孕妇经宫颈取微量绒毛用该法进行染色体检查,取材以孕6～8周为最佳,分裂相出现率达100%。本文还对秋水仙碱和低渗液的浓度和作用时间等进行了观察。更多还原

【Abstract】 Method of chorionic villi sampling (CVS) are studied.The successive rate was 100% in 6-8 gestational weeks group. Laboratory investigation in the direct method for chromosome preparation was done in 120 chorionie samples.High quality metaphases were obtained. The optimal concentration of colchicine and reaction time are studied.更多还原