Deposition of Mucin Coat on Rabbit Embryos Cultured In Vitro Following Oviductal Transfer
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서지정보
ㆍ발행기관 : 한국동물번식학회
ㆍ수록지정보 : Reproductive & developmental biology / 28권 / 3호
ㆍ저자명 : Joung S. Y, Yang J. H, Im K. S., Lee S. H., Park C. S., Jin D. I.
ㆍ저자명 : Joung S. Y, Yang J. H, Im K. S., Lee S. H., Park C. S., Jin D. I.
목차
INTRODUCTION MATERIALS AND METHODS Superovulation and Synchronization Embryo Culture and Transfer Recovery and Examination of Embryos RESULTS Recovery Rate of Blastocyst Transferred Degeneration Rate of Blastocysts Recovered Thickness of Mucin Coat of Blastocyst Recovered after Transfer DISCUSSION REFERENCES영어 초록
Mucin coat is deposited on the embryos during passage through the oviduct in rabbit. When in vitro cultured blastocysts were transferred to the recipients, the lack of mucin coat might account in part for failure of pregnancy after transfer. The present study were carried out to investigate whether deposition of mucin coat were induced when in vitro cultured blastocysts were transferred to recipients. At 19 ~20 hours post-coitus one-cell embryos were collected by flushing oviducts. These embryos cultured for 72 hours were reached to blastocyst stage. And these blastocysts were transferred to the oviduct of asynchronized (one day later than the donors) and synchronized recipient. To confirm deposition of the mucin coat, blastocysts transferred to the oviduct were recovered at 24 and 48 hours after the transfer. Fifty eight percent of blastocysts recovered from uterus of asynchronous recipient at 24 hours after transfer and 92.9% of blastocysts recovered from uterus of synchronous recipient were 0~10 ㎛ of mucin coat thickness. And 11.8% of blastocysts of asynchronized recipients and 7.1% of blastocysts from asynchronized recipients were in 11~20 ㎛ of mucin coat thickness. When blastocysts were recovered from uterus at 48 hours after transfer, 87.0% of blastocysts from asynchronized recipients and 5.9% of blastocyst from synchronized recipients were in 0~10 ㎛ of mucin coat thickness. And 76.5% of blastocysts of synchronized recipients and 4.4% of blastocysts from asynchronized recipients were in 11~20 ㎛ of mucin coat thickness. From these results it is speculated that the low implantation rate of in vitro cultured rabbit blastocysts transferred to oviduct of recipient was caused by high degeneration of the embryo after transfer and inappropriate deposition of mucin coat.참고 자료
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