Cytogenetic and morphological observations of single pronucleated human oocytes after in-vitro fertilization.

@article{Staessen1993CytogeneticAM,
  title={Cytogenetic and morphological observations of single pronucleated human oocytes after in-vitro fertilization.},
  author={Cath{\'e}rine Staessen and C. Janssenswillen and Paul Devroey and Andr{\'e} C. van Steirteghem},
  journal={Human reproduction},
  year={1993},
  volume={8 2},
  pages={221-3}
}
At 16-18 h after insemination, 5.5% of the inseminated oocytes displayed only one pronucleus. The incidence of single-pronucleated oocytes was not correlated with the age of the patient. Cytogenetic analysis of 41 embryos derived from single-pronucleated oocytes revealed a haploid chromosome complement in 12.2%, a diploid chromosome complement in 80.5% and a triploid set in 7.3% of the embryos. In one diploid metaphase, a Y chromosome could be clearly demonstrated. A total of 312 single… CONTINUE READING

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