河北医科大学学报

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Day 3非优质胚胎继续培养囊胚的应用价值研究

  

  1. 1.甘肃省妇幼保健院生殖医学中心,甘肃 兰州 730050;2.甘肃省出生缺陷防控研究重点实验室培育基地,甘肃 兰州 730050
  • 出版日期:2017-08-25 发布日期:2017-08-09
  • 作者简介:柴三明(1968-),男,甘肃秦安人,甘肃省妇幼保健院副主任医师,医学学士,从事生殖医学研究。
  • 基金资助:
    甘肃省卫生行业科研计划项目(GSWSKY201519);甘肃省国际科技合作专项(1504WKCA060);甘肃省重点实验室专项(1506RTSA158)

Study on application value of blastocysts derived from poor quality embryos on day 3#br#

  1. 1.Reproductive Medical Center of Gansu Provincial Maternity and Childcare Hospital, Lanzhou
    730050, China; 2.Cultivation Base of Key Laboratory of Gansu Provincial Birth Defects
    Prevention and Control, Lanzhou 730050, China
  • Online:2017-08-25 Published:2017-08-09

摘要: [摘要]〓
〖HTH〗目的〖HTSS〗〖KG*2〗通过分析第3天(day 3,D3)移植及冷冻后非优质胚胎继续培养的囊胚形成情况及其影响因素,探讨非优质胚胎继续培养囊胚在辅助生殖技术中的应用价值。
〖HTH〗方法〖HTSS〗〖KG*2〗374例体外受精-胚胎移植新鲜周期资料,首先以是否有囊胚形成分为有囊胎形成组278例和无囊胎形成组96例,比较2组临床及实验室指标之间的差异;比较不同年龄组、常规受精(in vitro fertilization,IVF)和卵胞浆内单精子注射(intra cytoplasmic sperm injection,ICSI) 2种授精方式、不同人绒毛膜促性腺激素(human chorionic gonadotropin,HCG)注射日雌二醇(estradiol,E2)水平、不同成熟卵子数等因素之间囊胚形成率及优质囊胚率的差异,分析影响D3非优质胚胎继续培养囊胚的临床及实验室因素;比较不同D3胚胎质量来源所形成囊胚的解冻妊娠率。
〖HTH〗结果〖HTSS〗〖KG*2〗374例患者共进行D3非优质胚胎继续培养1 938个,形成囊胚952个,囊胚形成率49.1%(952/1 938),优质囊胚率30.4%(590/1 938)。按年龄分为2组,年龄<35岁组囊胚形成率50.7%(875/1 727)和优质囊胚率31.6%(546/1 727)均明显高于年龄≥35岁组的36.5%(77/211)和20.8%(44/211),差异有统计学意义(P<005)。采用IVF受精后对非优质胚胎继续培养,其囊胚形成率51.2%(694/1 356)、优质囊胚率33.0%(447/1 356)均较采用ICSI授精后43.4%(136/316)和25.6%(81/316)高,差异有统计学意义(P<005)。随着HCG日E2水平的增加和成熟卵子数量的增多,囊胚形成率和优质囊胚率也随之增加。将D3非优质胚胎继续培养后所形成的优质囊胚经单囊胚冷冻后行解冻移植,其临床妊娠率虽然明显较同期D3为优质胚胎来源的囊胚解冻妊娠率低(42.5% vs 57.5%)(P<005),但仍然获得了较好的临床妊娠率。
〖HTH〗结论〖HTSS〗〖KG*2〗非优质胚胎囊胚培养可在一定程度提高患者的卵子利用率,节约治疗成本,但根据患者年龄、受精方式、基础内分泌水平、成熟卵子数等自身条件的不同,其非优质胚胎继续培养的利用价值及应用效果也不尽相同。

关键词: 生殖技术, 囊胚, 妊娠率

Abstract: [Abstract] Objective〖HTSS〗〓To explore the application value of blastocysts derived from poor quality embryos on day 3(D3) through its blastulation rate and high quality blastocyst formation rate.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓Three hundred and seventyfour in vitro fertilizationembryo transplantation were divided into two groups with blastulation or not after further culture of poor quality embryos on D3. Women′s age, insemination methods, estradiol on the day of human chorionic gonadotropin injection and the number of mature oocytes were also analyzed.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓The blastulation rate of 1 938 D3 poor quality embryos from 374 patients was 49.1%(952/1 938) and the high quality blastocyst formation rate was 30.4%(590/1 938). The blastocyst formation rate of patients low than 35 years old was 50.7%(875/1 727) and the high quality blastocyst formation rate was 31.6%(546/1 727), which was statistically higher than the patients more than 35 years old 36.5%(77/211), 20.8%(44/211). In vitro fertilzation blastulation rate and high quality blastocyst formation rate was significantly higher than intra cytoplasmic sperm injection blastulation rate: 51.2%(694/1 356) vs 43.0%(136/316), high quality blastocyst formation rate:33.0%(447/1 356) vs 25.6%(81/316). Patients who have more mature oocytes and much higher estradiol on the day of human chorionic gonadotropin injection, they would have more blastocyst and high quality blastocyst. The clinical pregnancy rate after transplanted the blastocysts came from D3 poor quality embryos was 42.5%, which was significantly lower than the blastocysts from D3 high quality embryos(57.5%).
〖HTH〗〖WTHZ〗Conclusion〓〖HTSS〗Further culture of D3 poor quality embryos can increase the utilization ratio of patients oocytes and decrease the costs of treatment. But according to the patient′s age, the mode of fertilization, the basal endocrine level, the number of mature eggs and other conditions, the utility value and application effect of non quality embryo continuous culture are not the same.

Key words: reproductive techniques, blastula, pregnancy rate