Developmental capacity and implantation potential of the embryos with multinucleated blastomeres

The Journal of Reproduction and Development
Akiyoshi EgashiraTakashi Kuramoto

Abstract

The presence of multinucleated blastomeres (MNBs) in embryos is associated with poor developmental competence in assisted reproductive technologies. This phenomenon is observed not only in humans but also in other animal species. The purpose of the present study was to investigate the characteristics of embryos with MNBs (MNB embryos) that could be utilized in embryo transfer. The developmental rate of MNB embryos to the blastocyst stage (50.8%) was significantly lower than that of normal embryos (73.3%) (P < 0.05). The clinical pregnancy rates of fresh embryo transfer (ET) using day 2 or day 3 embryos were significantly lower in MNB embryos (5.1%) compared with normal embryos (24.0%) (P < 0.05). In the case of frozen-thawed ET using a single vitrified/warmed blastocyst, however, the clinical pregnancy rate of MNB embryos was close to that of normal embryos (59.1% vs. 52.8%). Thus, the findings of the present study suggest that the frozen-thawed ET of MNB embryos might improve the potential for implantation followed by successful pregnancy.

References

Jul 1, 1995·Human Reproduction·S J PickeringP R Braude
May 2, 2003·Human Reproduction·Eric Van RoyenJan Gerris
Apr 16, 2004·Nature·Shingo YasudaShuh Narumiya
Dec 14, 2004·Reproductive Biomedicine Online·James MerianoCarl A Laskin
Jun 14, 2005·Reproductive Biomedicine Online·Laura RienziErmanno Greco
Sep 21, 2010·Human Fertility : Journal of the British Fertility Society·Rita De Cássia Savio FigueiraEdson Borges
Jan 25, 2011·Fertility and Sterility·Masao MurakamiTakeshi Kuramoto
Apr 2, 2013·Fertility and Sterility·Patricia FauqueCatherine Patrat
Mar 30, 2004·Reproductive Medicine and Biology·Takeshi KuramotoRajadurai Rajamahendran

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Citations

Jul 14, 2018·Science·Agata P Zielinska, Melina Schuh

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Methods Mentioned

BETA
GTPase
pregnancy test

Software Mentioned

SPSS Advanced Statistics

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