中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (19): 3018-3023.doi: 10.12307/2024.125

• 细胞相关实验/试验研究Cell related experimental/trial studies • 上一篇    下一篇

多次超数排卵对小鼠和人卵母细胞发育潜能的影响

李  崇1,沈小力1,杨静薇1,郭  晶2,谢  娟1,黄国宁1,李竞宇1   

  1. 1重庆医科大学附属妇女儿童医院生殖医学中心,人类胚胎工程重庆市重点实验室,重庆市   400013;2 吉林农业大学动物科学技术学院,吉林省长春市   130118
  • 收稿日期:2023-02-14 接受日期:2023-04-04 出版日期:2024-07-08 发布日期:2023-09-26
  • 通讯作者: 李竞宇,博士,副研究员,重庆医科大学附属妇女儿童医院生殖医学中心,人类胚胎工程重庆市重点实验室,重庆市 400013 黄国宁,主任医师,重庆医科大学附属妇女儿童医院生殖医学中心,人类胚胎工程重庆市重点实验室,重庆市 400013
  • 作者简介:李崇,男,1990年生,汉族,2016年华南农业大学毕业,硕士,助理研究员,主要从事早期胚胎发育方面的研究。 沈小力,女,1986年生,汉族,2015年瑞士巴塞尔大学毕业,博士,副主任医师,主要从事辅助生殖技术方面的研究。
  • 基金资助:
    重庆市自然科学基金面上项目(cstc2021jcyj-msxmX0823),项目负责人:李崇;重庆市妇幼保健院院级课题面上项目(2020YJMS03),项目负责人:李崇

Effects of repeated superovulation on developmental potential of oocytes in mice and humans

Li Chong1, Shen Xiaoli1, Yang Jingwei1, Guo Jing2, Xie Juan1, Huang Guoning1, Li Jingyu1   

  1. 1Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Hospital for Women and Children, Chongqing Medical University, Chongqing 400013, China; 2College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, Jilin Province, China
  • Received:2023-02-14 Accepted:2023-04-04 Online:2024-07-08 Published:2023-09-26
  • Contact: Li Jingyu, MD, Associate researcher, Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Hospital for Women and Children, Chongqing Medical University, Chongqing 400013, China Huang Guoning, Chief physician, Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Hospital for Women and Children, Chongqing Medical University, Chongqing 400013, China
  • About author:Li Chong, Master, Research assistant, Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Hospital for Women and Children, Chongqing Medical University, Chongqing 400013, China Shen Xiaoli, MD, Associate chief physician, Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Hospital for Women and Children, Chongqing Medical University, Chongqing 400013, China
  • Supported by:
    Natural Science Foundation of Chongqing, No. cstc2021jcyj-msxmX0823 (to LC); Special Research Project of Chongqing Health Center for Women and Children, No. 2020YJMS03 (to LC)

摘要:


文题释义:

超数排卵:通过给雌性供体注射外源性促性腺激素,诱发卵巢和多个卵泡的发育,并排出具有受精能力卵母细胞的方法,广泛应用于生殖生物学、胚胎工程学以及辅助生殖技术。
形态动力学参数:应用时差(time-lapse)图像评估的胚胎形态动力学参数,包括2细胞、4细胞、8细胞、桑葚胚、囊胚形成的时间,对评估胚胎的发育潜能有一定参考价值。


背景:超数排卵是辅助生殖技术中常见的治疗方法。在临床实践中,一些患者需要经过多次超数排卵怀孕。

目的:探讨多次超数排卵对小鼠和人卵母细胞发育潜能的影响。
方法:采用动物实验和临床回顾性研究。动物实验选择90只SPF级ICR 8周龄雌性小鼠,随机分为3组,分别进行1次、3次和5次超数排卵。在临床研究中共纳入306例接受3个体外受精周期的患者,比较不同周期的获卵数和胚胎发育情况。

结果与结论:①在动物实验中,多次超数排卵不影响小鼠胚胎的发育率和发育速度,且对小鼠囊胚细胞凋亡、DNA损伤、内细胞团和滋养外胚层的形成均无显著影响(P > 0.05);②在临床研究中,3个周期内获得的卵母细胞数(8.60±5.04,8.58±4.87及8.38±4.63,P=0.81)和可移植胚胎数(2.42±1.99,2.40±1.92及2.64±2.00,P=0.26)均无显著差异;③对于年轻组(< 35岁)和高龄组(≥ 35岁),胚胎质量不受超数排卵次数的影响(P > 0.05);④结果显示:多次超数排卵不影响小鼠和人卵母细胞的发育潜能。

https://orcid.org/0000-0003-0136-532X (李竞宇) 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 多次超数排卵, 体外受精, 卵母细胞, 发育潜能

Abstract: BACKGROUND: Superovulation is a common therapy in assisted reproductive technology. In clinical practice, some patients experience repeated superovulation to get pregnant.
OBJECTIVE: To explore the effect of repeated superovulation on the developmental potential of oocytes in mice and humans.  
METHODS: Both animal experiments and retrospective clinical research were conducted. The animal study involved 90 SPF grade ICR 8-week-old female mice, who were randomly divided into three groups for 1, 3, and 5 superovulations, respectively. The clinical study involved 306 patients who had undergone three consecutive in vitro fertilization cycles. The number of ovules obtained and embryonic development in different cycles were compared. 
RESULTS AND CONCLUSION: (1) The animal study indicated that repeated superovulation did not affect the embryonic development or developmental speed of mouse embryos. Similarly, there was no significant difference in the mouse blastocyst apoptosis, DNA damage, or the formation of inner cell mass and trophectoderm (P > 0.05). (2) The clinical study also revealed no significant differences in the number of retrieved oocytes (8.60±5.04, 8.58±4.87, and 8.38±4.63, P=0.81) and transferable embryos (2.42±1.99, 2.40±1.92, and 2.64±2.00, P=0.26) over the three cycles. (3) In both the young group (< 35 years) and the old group (≥ 35 years), the embryo quality was not affected by repeated superovulation (P > 0.05). (4) These findings show that repeated superovulation does not affect the developmental potential of oocytes in mice and humans. 

Key words: repeated superovulation, in vitro fertilization, oocyte, developmental potential

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