吉林大学学报(医学版) ›› 2022, Vol. 48 ›› Issue (2): 436-443.doi: 10.13481/j.1671-587X.20220221

• 临床研究 • 上一篇    下一篇

基于体外受精-胚胎移植助孕女性患者年龄对早期胚胎发育动力学参数及胚胎发育潜能影响的Time-lapse技术评估

杨冬宇,陆杉,曹晓静,陈旭龙,李思楠,卢兴宏,倪运萍,谢妍()   

  1. 广州中医药大学第二附属医院生殖医学科,广东 广州 510120
  • 收稿日期:2021-08-04 出版日期:2022-03-28 发布日期:2022-05-10
  • 通讯作者: 谢妍 E-mail:xy112112@163.com
  • 作者简介:杨冬宇(1986-),男,吉林省公主岭市人,主管技师,医学硕士,主要从事不孕症与受精机制方面的研究。
  • 基金资助:
    国家自然科学基金青年基金项目(82004411);广东省中医药局科研基金项目(20201125)

Evaluation of Time-lapse technology on kinetic parameters of early embryonic development and embryonic development potential based on effect of age of female patients with in vitro fertilization-embryo transfer

Dongyu YANG,Shan LU,Xiaojing CAO,Xulong CHEN,Sinan LI,Xinghong LU,Yunping NI,Yan XIE()   

  1. Department of Reproductive Medicine,Second Affiliated Hospital,Guangzhou University of Chinese Medicine,Guangzhou 510120,China
  • Received:2021-08-04 Online:2022-03-28 Published:2022-05-10
  • Contact: Yan XIE E-mail:xy112112@163.com

摘要: 目的

探讨患者年龄对早期胚胎发育动力学参数及胚胎发育潜能的影响,为研究患者年龄与胚胎质量的关系提供理论依据。

方法

回顾性分析在本科行体外受精-胚胎移植(IVF-ET)助孕治疗的不孕女性患者的临床资料,根据患者年龄分为<30岁组(48例,439枚胚胎)、30岁≤患者年龄<40岁组(129例,1 019枚胚胎)和≥40岁组(48例,176枚胚胎)。所有胚胎置于时差成像系统(Time-lapse技术)中培养至第3天;观察早期胚胎发育动力学情况,比较3组患者获卵数、受精率、卵裂率、可利用胚胎数和优胚数等,同时探讨患者年龄与胚胎发育阻滞的关系。

结果

与≥40岁组比较,<30岁组和30岁≤患者年龄<40岁组患者获卵数、可利用胚胎数和优质胚胎数增加(P<0.05),3组胚胎从受精到3细胞时间(t3)、从受精到4细胞时间(t4)、从受精到5细胞时间(t5)、从受精到6细胞时间(t6)和从2细胞分裂到3细胞的时间(cc2)差异有统计学意义(P<0.05),其中30岁≤患者年龄<40岁组t2和t6长于<30岁组(P<0.05),≥40岁组t3长于<30岁组和30岁≤患者年龄<40岁组(P<0.05),且30岁≤患者年龄<40岁组t3长于<30岁组(P<0.05),≥40岁组t4和t5长于<30岁组(P<0.05),≥40岁组cc2长于<30岁组和30岁≤患者年龄<40岁组(P<0.05);3组患者原核消失时间(tPNF)、从受精到7细胞时间(t7)、从受精到8细胞时间(t8)、从3细胞分裂至4细胞的时间(s2)、 从5细胞分裂至8细胞的时间(s3)和从3细胞分别到5细胞的时间(cc3)比较差异无统计学意义(P>0.05)。与<30岁组和30岁≤患者年龄<40岁组比较,≥40岁组患者碎片化率升高(P<0.05),其他异常分裂事件发生率有升高趋势,但差异无统计学意义(P>0.05);与<30岁组和30岁≤患者年龄<40岁组比较,≥40岁组胚胎发育至5细胞、6细胞、7细胞和8细胞的比例降低(P<0.05)。

结论

患者年龄对部分胚胎发育动力学有一定影响,随着患者年龄的增长,胚胎出现发育阻滞概率升高。

关键词: 体外受精, 年龄, 胚胎, 形态动力学, 发育阻滞

Abstract: Objective

To investigate the influence of age of patients in the kinetic parameters of early embryonic development and embryonic developmental potential, and to provide a theoretical basis for studying the relationship between patients’ age and embryo quality.

Methods

The clinical materials of infertile female patients who underwent in vitro fertilization-embryo transfer (IVF-ET) assisted fertility treatment in our department were retrospectively analyzed, and the patients were divided into <30 years old group (48 cases, 439 embryos), 30 years old≤patients’ age<40 years old group (129 cases,1 019 embryos) and ≥40 years old group (48 cases, 176 embryos) according to their ages. All embryos were cultured in the Time-lapse culture system until Day 3; the developmental dynamics of early embryos were observed, and the number of eggs obtained, fertilization rates, cleavage rates, number of available embryos, number of excellent embryos, etc were compared among three groups; at the same time, the relationship between age and embryonic developmental arrest was also explored.

Results

Compared with≥40 years old group, the number of eggs obtained, the number of available embryos, and the number of high-quality embryos of the patients in <30 years old group and 30 years old≤ patient’s age<40 years old group were increased (P<0.05); there were statistical differences in time from fertilization to division into 3 cells stages(t3), time from fertilization to division into 4 cells stages(t4),fertilization time to division into 5 cells stages(t5),time from fertilization to division into 6 cells stages(t6), time from 2 cells to 3 cells (cc2) among three groups (P<0.05); the time from fertilization to division into 2 cells stages(t2) and t6 in 30 years old≤patients’ age<40 years old group were longer than those in <30 years old group (P<0.05); t3 in ≥40 years old group was longer than that in <30 years old group and 30 years old ≤patients’ age<40 yeras old group (P<0.05), and t3 in 30 years old ≤patients’ age <40 years old group were also longer than those in <30 years old group (P<0.05); t4 and t5 in ≥40 years old group were longer than those in <30 years old group (P<0.05), and cc2 in ≥40 years old group was longer than those in <30 years old group and 30 years old≤patients age<40 years old group (P<0.05); there were no statistical differences in time from fertilization to the disappearance of the two pronucleis(tPNF),time from fertilization to division into 7 cells stages(t7), time from fertilization to division into 8 cells stages(t8), time from 3 cells to 4 cells(s2), time from 5 cells to 8 cells(s3), time from 3 cells to 5 cells(cc3) among three groups (P>0.05).Compared with <30 years old group and 30 years old ≤patients’ age <40 years old group, the fragmentation rate of patients in ≥40 years old group was increased (P<0.05), the incidence of other abnormal division events had a tendency to increase, but there were no statistically significant differences(P>0.05); compared with <30 years old group and 30 years old≤patients’ age<40 years old group, the proportions of embryos developed to 5 cells, 6 cells, 7 cells and 8 cells in ≥40 years old group were decreased (P<0.05).

Conclusion

The patients’ age has a certain influence in the developmental dynamics of embryos, with the increase of the patients’ age, the probability of developmental arrest of embryos increases.

Key words: In vitro fertilization, Age, Embryo, Morphokinetics, Developmental arrest

中图分类号: 

  • R715.9