pericentric inversion

14 cases had pericentric inversion , it was 2.97 % in all cases ( 37.83 % in abnormal karyotypes );

臂间倒位14例，检出率297%（占异常总数3783%）；

Obvious karyotypic differentiation among the populations , which was highlighted by chromosomal aberrations , including mainly pericentric inversion and the Robertsonian or unequal reciprocal translocations , was detected .

种内的核型分化与染色体的结构变异有关。主要表现为臂间倒位、罗伯逊易位和或不等相互易位。

Conclusion Pericentric inversion of chromosome 9 can result in abnormal fertility .

结论9号染色体臂间倒位可导致异常生育。

Study on Cytogenetics of a Case with Pericentric Inversion in Chromosome 12

一例12号染色体臂间倒位的细胞遗传学研究

Partial Duplication and Deletion of Chromosome 4 in an infant of a Carrier of Pericentric Inversion of Chromosome 4

4号染色体部分重复和缺失一例

Subterminal deletion / duplication event in an affected male due to maternal X chromo - some pericentric inversion

母体X染色体着丝粒周倒位引起亚端缺失或重复1例

Objective To study the genetic effect of pericentric inversion of chromosome 9 and analyse the relationship between pericentric inversion of chromosome 9 and habitual abortion , dead fetus and infertility .

目的研究人类9号染色体臂间倒位的遗传效应，分析9号染色体臂间倒位与流产、死胎、不孕和不育等的关系。

Two cases were autosomal balanced translocation and two cases were pericentric inversion . The chromosome secondary constriction in one case became wider and the short arms of G team chromosomes in one case became longer .

其中常染色体平衡易位2例，臂间倒位2例，染色体次缢痕增大和G组短臂增加各1例。

Results Among 4 000 cases , 71 cases were found having pericentric inversion of chromosome 9.The ratio of the group with abnormal fertility ( 1.78 % ) is higher than that of the normal fertility group .

结果在4000例受检患者中，共检出9号染色体臂间倒位71例，发生率为1.78%，明显高于一般人群9号染色体臂间倒位的发生率。

Karyotypes were analyzed by G-banding technique . Results : Among 2317 cases , 26 cases were found having pericentric inversion of chromosome 9 ( 1.12 % ), 15 of 26 cases exhibited abortion , infertility , fetus malformation and 2 of 26 cases have the abnormal number of chromosome .

结果2317例病人中检出26例9号染色体臂间倒位（1.12%），其中有15例患者（占58%）伴有流产、不育、不孕、胎儿畸形等临床表现，2例合并有染色体数目异常。