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作者之一1976年在研究三倍体流产的14个家族时,曾确定2例系第一次母系减数分裂未完成所引起。其余12例曾提出有几种可能,但该资料表明,第一次母系减数分裂未完成与以后发表的其他资料相比,可能是本组三倍性更常见的原因。为阐明此点,作者继续其以前对三倍性起因的研究。本文通过连续的Q和C显带技术,报告了对14例自然流产三倍体再次详细检查的结果。材料来源为连续搜集一医院中前16周妊娠时发生的228例自然流产。结果:在14个家族中,12个(86％)可
When one of the authors studied 14 families of triploid abortion in 1976, it was determined that two cases were caused by the unfinished maternal meiosis. The remaining 12 cases have suggested several possibilities, but the data suggest that the first maternal meiosis is incomplete and may be the more common cause of triploidies in this group, compared with other published data. To illustrate this point, the author continues his previous study of the causes of triploidy. This article reports the results of a detailed examination of 14 triploids of spontaneous abortion with sequential Q and C banding techniques. The source of the material was a continuous collection of 228 spontaneous abortions that occurred during the first 16 weeks of gestation in a hospital. Results: Of the 14 families, 12 (86%) were eligible