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第43卷第2期                           南京医科大学学报(自然科学版)
                  2023年2月                   Journal of Nanjing Medical University(Natural Sciences)     ·213 ·


               ·基础医学·

                一种高效的成年小鼠同步诱导多细胞胚胎及受精卵的双排卵

                实验方案



                赖娅娜 ,曾文滔      1,2*
                      1
                南京医科大学医药实验动物中心,南京医科大学生殖医学国家重点实验室,江苏                             南京 211166
                1                         2


               [摘   要] 目的:探讨二次超排方案对提高成年小鼠超排效果和胚胎发育潜能的可行性。方法:首先比较常规双排卵方案与
                自然排卵、随机超排实验方案所获总卵数的差异,然后在初步研究外源孕马血清促性腺激素(pregnant mare serum gonadotro⁃
                pin,PMSG)对自然受孕一次胚胎发育影响的基础上,进一步对常规双排卵实验方案进行优化。结果:优化后的双排卵实验组
                单只鼠平均总卵数高达61.7枚,与自然排卵组、随机超排组和常规双排卵组差异显著,提升了成年小鼠的超排卵效果。结论:
                优化后的超数双排卵方案为同步大量获得小鼠多细胞胚胎及受精卵提供了一种新的、高效的技术方法。
               [关键词] 小鼠受精卵供体;生殖激素;超数排卵
               [中图分类号] R321.1                   [文献标志码] A                       [文章编号] 1007⁃4368(2023)02⁃213⁃05
                doi:10.7655/NYDXBNS20230209


                An efficient double ovulation protocol for simultaneous induction of multicellular embryos
                and fertilized eggs in adult mice

                        1
                LAI Yana ,ZENG Wentao 1,2*
                Animal Core Facility of Nanjing Medical University,State Key Laboratory of Reproductive Medicine,Nanjing
                1                                              2
                Medical University,Nanjing 211166,China


               [Abstract] Objective:To investigate the feasibility of secondary superovulation scheme in improving the superovulation effect and
                embryonic development potential of adult mice. Methods:Firstly,the difference of total egg number among the conventional double
                ovulation scheme,the natural ovulation and random superovulation experimental schemes was compared,and then the conventional
                double ovulation experimental scheme was further optimized on the basis of the preliminary study of the effect of exogenous pregnant
                mare serum gonadotropin(PMSG)on the development of naturally conceived embryos. Results:The average total number of eggs in the
                optimized double ovulation experimental group was 61.7,which was significantly different from the natural ovulation group,the random
                superovulation group and the conventional double ovulation group,and improved the superovulation effect of adult mice. Conclusion:
                The optimized double superovulation scheme provides a new and efficient technical method for obtaining a large number of mouse multi
                ⁃cell embryos and fertilized eggs.
               [Key words] mouse zygote donors;reproductive hormone;superovulation
                                                                              [J Nanjing Med Univ,2023,43(02):213⁃217]



                    小鼠作为一种重要的实验动物,广泛运用于探                          数量受精卵和可用胚胎,充分利用有限的动物资
                索生命奥秘、研究疾病机制及防治等生命科学各                             源,缩短世代间隔,提高胚胎工程技术在生物领域
                领域。以超数排卵技术为基础的辅助生殖技术                              中的应用效率具有重要意义              [1-3] 。国内外针对小鼠
               (assisted reproductive technology,ART)对获得足够        超数排卵研究较多,经典的小鼠超排方案是注射孕

               [基金项目] 江苏省自然科学基金(BE2019730)                        马血清促性腺激素(pregnant mare serum gonadotro⁃
                                                                  pin,PMSG)促卵泡发育48 h后注射人绒毛膜促进腺激
                ∗
                通信作者(Corresponding author),E⁃mail:wentaozeng@njmu.edu.
                cn                                                素(human chorionic gonadotrophin,HCG)促排卵 [4-5] 。
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