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Time-lapse observation of mouse preimplantation embryos using a simple closed glass capillary method.


ABSTRACT: Time-lapse observation is a popular method for analyzing mammalian preimplantation embryos, but it often requires expensive equipment and skilled techniques. We previously developed a simply and costly embryo-culture system in a sealed tube that does not require a CO2 incubator. In the present study, we developed a new time-lapse observation system using our previous culture method and a glass capillary. Zygotes were placed in a glass capillary and sunk in oil for observation under a stereomicroscope. Warming the capillary using a thermoplate enabled most of the zygotes to develop into blastocysts and produce healthy offspring. This time-lapse observation system captured images every 30 min for up to 5 days, which confirmed that the developmental speed and quality of the embryos were not affected, even with fluorescence. Overall, this new system is a simple time-lapse observation method for preimplantation embryos that does not require dedicated machines and advanced techniques.

SUBMITTER: Kikuchi Y 

PROVIDER: S-EPMC10646084 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature

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Time-lapse observation of mouse preimplantation embryos using a simple closed glass capillary method.

Kikuchi Yasuyuki Y   Ito Daiyu D   Wakayama Sayaka S   Ooga Masatoshi M   Wakayama Teruhiko T  

Scientific reports 20231114 1


Time-lapse observation is a popular method for analyzing mammalian preimplantation embryos, but it often requires expensive equipment and skilled techniques. We previously developed a simply and costly embryo-culture system in a sealed tube that does not require a CO<sub>2</sub> incubator. In the present study, we developed a new time-lapse observation system using our previous culture method and a glass capillary. Zygotes were placed in a glass capillary and sunk in oil for observation under a  ...[more]

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