国际生殖健康/计划生育 ›› 2018, Vol. 37 ›› Issue (6): 450-453.

• 论著 • 上一篇    下一篇

精子DNA碎片率对男性生育力评估的预测价值

乔坤,杨志勇,谢媛,范秋淋,范羽,刘玉兵,杨艳楠,赵勇锋,王玲,千日成   

  1. 200072  上海,同济大学附属上海市第十人民医院生殖医学中心
  • 收稿日期:2018-08-22 修回日期:2018-10-23 出版日期:2018-11-15 发布日期:2018-11-15
  • 通讯作者: 千日成,E-mail:rchian@126.com E-mail:ri-cheng.chian@mcgill.ca

Index of Sperm DNA Fragmentation as A Potential Parameter of Male Fertility

QIAO Kun,YANG Zhi-yong,XIE Yuan,FAN Qiu-lin,FAN Yu,LIU Yu-bing,YANG Yan-nan,ZHAO Yong-feng,WANG Ling,CHIAN Ri-cheng   

  1. IVF Center of Shanghai Tenth People's Hospital,Tongji University,Shanghai 200072,China
  • Received:2018-08-22 Revised:2018-10-23 Published:2018-11-15 Online:2018-11-15
  • Contact: CHIAN Ri-cheng,E-mail:rchian@126.com E-mail:ri-cheng.chian@mcgill.ca

摘要: 目的:探讨精子DNA碎片率(DFI)对男性生育力评估方面的预测价值。方法:选择2016年1月—2018年7月于上海市第十人民医院生殖医学中心就诊的460例男性不育患者纳入观察组,同期107例正常生育男性纳入对照组。计算机辅助精液分析系统(CASA)检测精液常规,精子染色质结构分析检测精子DFI。将精液常规结果分为精液正常、少精子、弱精子和少弱精4类。比较观察组和对照组的精液常规构成比和精子DFI;比较不同年龄(<30岁,30~39岁,≥40岁)患者精子DFI水平的变化趋势及不同水平精子DFI(≤15%,15%~30%,≥30%)患者的体外受精(IVF)/胞浆内单精子注射(ICSI)的生殖结局。结果:观察组中精液正常、少精子、弱精子、少弱精所占比列分别为22.17%、13.26%、52.62%和11.95%,对照组分别为60.96%、34.59%、1.75%和2.70%。与对照组相比,观察组精液正常比例下降,少精子、弱精子和少弱精比例增加,差异有统计学意义(P<0.05)。与对照组相比,观察组精子DFI≤15%所占比例下降,DFI≥30%比例增加,差异有统计学意义(P<0.05)。随着年龄增加,精子DFI≤15%患者所占比例下降,精子DFI(15%~30%)与精子DFI≥30%患者所占比例增加,3组间精子DFI的分布比例差异有统计学意义(P<0.05)。精子DFI≥30%来源的IVF或ICSI胚胎,其早期流产率显著升高(31%和25%,均P<0.05),但受精率、卵裂率、生化妊娠率、临床妊娠率、着床率等指标差异均无统计学意义(P>0.05)。结论:不育男性的精子DNA碎片率更高,并且随年龄的增加而增加。DFI≥30%的精子受精的胚胎早期流产率较高,影响辅助生殖技术的妊娠结局,因此DFI对不育男性的生育力评估有实用参考价值。

关键词: 生育力, 受精, 体外, 精子注射, 细胞质内, DNA碎片, 年龄因素

Abstract: Objective:To evaluate whether the index of sperm DNA fragmentation index(DFI) can be used as a parameter of male fertility. Methods:A total of 460 infertile men were enrolled in the observation group, and 107 fertile men in the control group. Semen parameters were calculated by the computer assisted semen analysis system (CASA). Sperm DNA fragmentation index (DFI) was detected by the sperm chromatin structure assay (SCSA). The results of routine semen analysis were divided into the normal, oligospermia, asthenospermia and oligoasthenospermia subgroups. Objects were also grouped into 3 subgroups according to the age,  <30 years, 30-39 years, and over 40 years. Specially, those objects were further divided into three subgroups according to DFI, ≤15, 15-30 and ≥30. DFI was compared between the control group and the observation group. The correlations between sperm DFI and age, IVF/ICSI embryonic development and reproductive outcome were successively analyzed. Results:There were significant differences in the proportions of normal, oligospermia, asthenospermia and oligoasthenospermia between the observation group and the control group (22.17% vs. 60.96%, 13.26% vs. 34.59%, 52.62% vs. 1.75% and 11.95% vs. 2.70%, all P<0.05). In the observation group, the proportion of sperm DFI ≤15% was decreased while the proportion  of DFI ≥30% increased (both P<0.05). The level of sperm DFI was increased with age (P<0.05). The early abortion rates of those IVF or ICSI embryos derived from sperms with DFI≥30 were significantly increased (31% and 25%, P<0.05). However, there were no significant differences in the fertilization rate, cleavage rate, biochemical pregnancy rate, clinical pregnancy rate, implantation rate among those subgroups (all P>0.05). Conclusions: The sperm DFI in infertile men is at a higher level, and increased with age. The early abortion rate of IVF or ICSI embryos will be increased when sperm DFI≥30, suggesting that sperm DFI is a practical reference for the evaluation of the potential fertility in those infertile men.

Key words:  Fertility, Fertilization in vitro, Sperm injections, intracytoplasmic, DNA fragmentation, Age factors