实用医学杂志 ›› 2022, Vol. 38 ›› Issue (13): 1680-1684.doi: 10.3969/j.issn.1006⁃5725.2022.13.022

• 调查研究 • 上一篇    下一篇

江西地区997对自然流产夫妇外周血染色体变异分析

饶慧华 刘艳秋 黄淑晖 周吉会 杨必成    

  1. 江西省妇幼保健院医学遗传中心,江西省出生缺陷防控重点实验室(南昌 330006)

  • 出版日期:2022-07-10 发布日期:2022-07-10
  • 通讯作者: 刘艳秋 E⁃mail:lyq0914@126.com
  • 基金资助:
    江西省出生缺陷防控重点实验室建设项目(编号:20202BCD42017);江西省中医药管理局普通科技计划(编号:2021B407)

Chromosome variation in peripheral blood of 997 couples with spontaneous abortion in Jiangxi province

RAO Huihua,LIU Yanqiu,HUANG Shuhui,ZHOU Jihui,YANG Bicheng.   

  1. Center of Medical GeneticsJiangxi Ma⁃ ternity and Child Health HospitalJiangxi Provincial Key Laboratory of Birth Defect for Prevention and Control Nanchang 330006China
  • Online:2022-07-10 Published:2022-07-10
  • Contact: LIU Yanqiu E⁃mail:lyq0914@126.com

摘要:

目的 分析江西地区自然流产夫妇外周血染色体变异的类型、发生率及其在男、女性中的分布差异,探讨自然流产与染色体变异的关系。方法 根据流产次数将 997 对(1 994 例)自然流产夫妇分 4 组:流产 1 次、2 次、3 次、≥ 4 次,检测外周血染色体核型并进行统计分析。结果 (1)997 对自然流产 夫妇染色体变异率为 13.94%(139/997),包括染色体多态 83 例,染色体畸变 56 例,其中平衡易位占总畸变 55.36%(31/56)。(2)流产 1 次夫妇中男性与女性染色体变异类型差异无统计学意义(P > 0.05),但流产 ≥ 2 次夫妇染色体结构异常与流产 1 次夫妇比较差异有统计学意义(P < 0.05);流产≥ 4 次夫妇染色体多 态性与其他组相比差异具有统计学意义(P < 0.05)。(3)自然流产 3 次以内,随着流产次数增加,染色体畸 变率增加,两者的关联存在统计学意义(OR = 1.648,95%CI:1.163 ~ 2.334,P < 0.05)。结论 染色体易位是 造成复发性流产的主要遗传因素,自然流产3次以内染色体畸变率与流产次数成正相关。对于RSA夫妇应 常规进行染色体检查,流产≥ 4次的夫妇应关注染色体多态的遗传效应,评估再生育风险。

关键词:

自然流产, 染色体变异, 复发性流产

Abstract:

Objective To explore the relationship between early spontaneous abortion and chromosome variation by analyzing the types,incidence and the distribution between males and females of chromosome variation in couples with spontaneous abortion in Jiangxi province. Methods 997 couples(1 994 cases)with spontaneous abortion were divided into 4 groups:1 abortion,2 abortions,3 abortions and ≥ 4 abortions. Chromosome karyotype was detected and statistically analyzed. Results (1)The chromosome variation rate was 13.94%(139/997), including 83 cases of chromosome polymorphism and 56 cases of chromosome aberration,of which balanced trans⁃ location accounted for 55.36%(31/56)of the total aberration.(2)There was no significant difference in chromosomal variation types between male and female with one abortion(P > 0.05). But there was a significant difference in abnormal chromosome structure between couples who miscarried ≥ 2 times and those who miscarried once(P < 0.05). The chromosomal polymorphism of couples with ≥ 4 abortions was significantly different from that of other groups (P < 0.05).(3)The chromosomal aberration rate was increased with the abortion times within 3 times,and the correlation between the two was statistically significant(OR = 1.648,95%CI:1.163 ~ 2.334,P < 0.05). Conclusion Chromo⁃ some translocation is the main genetic factor causing recurrent abortion. The chromosomal aberration rate is positively correlated with the abortion times within 3 times. For couples with recurrent abortion,routine chromosome examina⁃ tion shall be carried out,and couples with abortion ≥ 4 times shall pay attention to the genetic effect of chromo⁃ some polymorphism to assess the risk of reproduction.

Key words:

spontaneous abortion, chromosomal variation, recurrent spontaneous abortion