实验动物科学 ›› 2014, Vol. 31 ›› Issue (04): 28-31.

• 研究 论著 • 上一篇    下一篇

乙二醇玻璃化冷冻液二步法对长爪沙鼠 2-细胞胚胎的冷冻保存

  

  1. (1 浙江省医学科学院,杭州 310013) ( 2 中国医科大学实验动物部,沈阳 110001) ( 3 首都医科大学基础医学院,北京 100069)
  • 出版日期:2014-08-29 发布日期:2016-12-05
  • 基金资助:

    国 家 科 技 支 撑 计 划 重 点 项 目 ( No. 2011BAI15B01-31,2013BAK11B01-41 ) ,浙江省级公益性技术应用研究计划 ( No. 2011C37080) ,浙江省卫生厅项目( No. 2011RCB002)<\p>

Cryopreservation of Mongolian gerbil 2-cell Embryos by Vitrification based on EG with Two Steps

  • Online:2014-08-29 Published:2016-12-05

摘要: 摘要: 目的 评价用乙二醇玻璃化冷冻液二步法对长爪沙鼠 2-细胞胚胎冷冻保存的效果。方法 通过超排卵处理 后与雄鼠交配获得长爪沙鼠 2-细胞胚胎,胚胎在冷冻液 EFS20 中平衡 3 min,然后移入冷冻液 EFS40 中平衡 1 min, 之后将细胞冻存管直接浸入液氮中保存。采用二步法复苏胚胎,复苏后移入改良的胚胎培养液( mKSOM) 中体外 培养。结果 采用该方法冷冻的胚胎复苏后胚胎回收率为 86. 73% ,存活率为 82. 94% ,复苏后存活的胚胎中约 1 / 3 胚胎可以在体外发育到囊胚。结论 乙二醇玻璃化冷冻液适于冷冻保存长爪沙鼠 2-细胞胚胎。

关键词: 玻璃化冷冻, 冷冻保存, 2-细胞胚胎, 长爪沙鼠

Abstract: Abstract: Objective Using the thyleneglycol( EG) -based solutions with two steps to freeze the 2-cell embryos of Mongolian gerbil( Meriones unguiculatus) and to appraise the effect of embryo cryopreservation. Method The embryos were exposed serially to EFS20 for 3 minutes and EFS40 for 1 minute. The embryo trealed were immersed into liquid nitrogen. Result The embryo recovery rate was 86. 73% and after freezing-thawing it survival rate was 82. 94% . And about 30% of the freezing-thawing embryos developed to blastocyst in vitro. Conclusion This results demonstrates that Mongolian gerbil embryos can be safely cryopreserved using vitrification solutions based on EG with two steps.

Key words: vitrification, cryopreservation, 2-cell embryo, Mongolian gerbil( Meriones unguiculatus )

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