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1. Such zygotes can develop as far as the blastocyst stage but if they are then implanted into a uterus they soon fail.

2. Egg cytoplasm could redefine the fate of blastocyst nuclei that were transferred into them.

3. The blastocyst will now implant or embed itself in the endometrium, losing its membrane.

4. The removal of a single cell from a blastocyst is not a new idea.

5. The outermost layer of cells of the blastocyst that attaches the fertilized ovum to the uterine wall and serves as a nutritive pathway for the embryo.

6. At six days the blastocyst attaches to the uterine wall to begin the process of implantation.

7. Embryos after culture ever day , the blastocyst formation rate and hatching rate were accounted.

8. Thus, even during implantation the blastocyst may still divide and grow into two separate embryos.

9. The attachment of the blastocyst to the lining of the uterus.

10. "Early on, any radiation dose at the blastocyst stage is an all-or-nothing event, " says Higley, meaning the blastocyst is thought to either recover and continue growing or miscarry.

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11. The blastocyst is then surgically introduced into the uterus of a foster mother.

12. Conclusion: Hydrosalpinx fluid might interfere with the blastocyst implantation by decreasing the MMP-9/TIMP-1 secretion and impairing the early development of blastocysts.

13. A third group act as temporary recipients, incubating the newly reconstructed embryos within their oviducts until they reach the blastocyst stage.

14. Those ES cells carrying the inactivated gene can then be isolated and introduced (by injection) into a pre-embryonic structure called the blastocyst.

15. In the experiment, the fertilized eggs overcame the 2 cell block and developed to blastocyst stage when cultured in the modified M16(mM16) medium.

16. Her book points out that giving individual rights to a blastocyst is problematic.

17. Results Addition of leptin to embryo culture media promoted the development from 2-cell stage embryo to morula, blastocyst and hatched blastocyst and improved the implantation rate.

18. Objective To investigate the influence of plateletfactor PAF upon implantation of mouse blastocyst.

19. The Korean team announced this past February that they had created a human embryo through SCNT(sentencedict.com), grew it into a blastocyst and derived a pluripotent ES cell line.

20. Conclusions The differential level of dysgerminoma and embryonal carcinoma approximates the stages of gonocyte and blastocyst.

21. The same is true if the uterine lining is not prepared to receive the blastocyst.

22. To observe the effect of Bushen Huoxue prescription on blastocyst nidation in pregnancy mice.

23. Objective To explore techniques of isolating embryonic stem-like cells (ESLCs) from mouse blastocyst inner cell mass and the utilization of ESLCs to generate chimerical mice.

24. At least two different states representing the epiblast progenitors in the blastocyst and the pluripotent progenitors of the later gastrulating embryo have been recognized.

25. Delayed implantation occurs when the conceptus enters a state of suspended animation at the blastocyst stage of development.

26. The results suggest that changes of lectin-binding intensity in mouse endosalpinx are associated with steroid hormones and blastocyst regulation.

27. In reproductive tract fluids, concentrations of myristic acid in 1 cell stage, stearic acid in 2 cell stage and linoleic acid in blastocyst were the highest at the same stage.

28. Preactivating donor cells and enucleated oocytes with ionomycin has no significant enhancive effect on the cleavage of constructed embryos, but it arrests the blastocyst development.

29. Along with the increase of bFF, in IVF group , cleavage and blastocyst rate decreases.

30. After thawing, 26 of the 33 embryos (most of which were composed of between two and ten cells) developed to blastocyst stage in which the blastocoele is formed.