A total of 82 patients underwent 106 cycles in which immature oocytes were recovered after hCG priming and transferred at blastocyst-stage. After transfer, the implantation rate was 26.8%, and the clinical pregnancy rate was 51.9%. We found that the oocytes retrieved after hCG priming in women with high risk of ovarian hyperstimulation syndrome in the in vitro maturation program can develop to ...

Background Recent researches reveal that manual puncturing of the trophectoderm of blastocyst before vitrification, increase the quality of embryo. However, in any of these studies, the importance of blastocoelic fluid and its impact on the formation of three cell lines is not mentioned. Therefore, in the present study, the effect of blastocoelic fluid reduction before vitrification on survival...

Background: Arresting in a certain step of development like two-cell stage could be one of the reasons of infertility. The aim of this study is evaluating the effects of ethanol and strontium on growth and development of two-cell arrested mouse embryos. Materials and Methods: The females were coupled with male following superovulation. Positive vaginal plug mice were killed 48 hours after hCG i...

Intracytoplasmic sperm injection (ICSI) has become the method of choice to treat human male infertility. One of the outstanding problems associated with this technique is our current lack of knowledge concerning the effect of sperm capacitation and motility upon the subsequent development of oocytes following ICSI. In the present study, we first examined the capacitation state of sperm exhibiti...