Time to switch from co-culture to sequential defined media for transfer at the blastocyst stage
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چکیده
منابع مشابه
Time to switch from co-culture to sequential defined media for transfer at the blastocyst stage.
It is current practice in in-vitro fertilization (IVF) to transfer embryos 48 h post-insemination at the 2–4 cell stage. However, it is now clear that this is a totally blind process. Firstly, embryos encounter an unsuitable environment, normally they would be in the oviduct. Secondly, motility of the uterus is related inversely to circulating progesterone. This problem of hypermotility of the ...
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15 صفحه اولMonozygotic twins and transfer at the blastocyst stage after ICSI.
The incidence of monozygotic twinning (MZT) is higher in pregnancies conceived after assisted reproduction than after natural conception. Alterations, produced by ovarian stimulation, in-vitro culture conditions and specifically alterations of zona pellucida are mentioned as possible causes of this phenomenon. A retrospective review was performed of the incidence of MZT in pregnancies generated...
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Ovulation Induction and Oocyte Recovery Ovarian hyperstimulation was achieved using GnRH analogue (nafarelin acetate, Synarel®, Pfizer) along with human recombinant FSH (r-hFSH: Gonal-F®, MerckSerono) in a long down-regulation protocol. Starting gonadotrophin dose varied from 150-300 IU and was based on female age, body mass index, ovarian volume, basal FSH levels and the number of preantral fo...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 1998
ISSN: 0268-1161,1460-2350
DOI: 10.1093/humrep/13.8.2043