Any change in the embryo
or larva will almost certainly entail changes in the mature animal.
He knew well that Nastasia thoroughly understood him and where to wound him and how, and therefore, as the marriage was still only in embryo
, Totski decided to conciliate her by giving it up.
A WOMAN has given birth to a baby who spent a record 24 years as a frozen embryo
quality and embryo
selection are critical criteria for embryo
transfer and subsequently success of assisted reproductive technologies (ART).
This manual outlines general principles and clinical procedures for equine embryo
transfer, based on basic science, applied research, and clinical experience gained from the commercial embryo
transfer program at Colorado State U.
While vitrification of all embryos
fertilized in vitro has not proven superior to fresh embryo
transfers and may even be inferior for older women whose eggs may not be as forgiving of cryopreservation, its use has grown.
One technique being used by the London Women's Clinic is embryo
Moreover, its automated time-lapse imaging system captures a picture every 20 minutes, allowing embryologists to observe the growth of each embryo
in more detail from the moment of fertilisation until maturity (approximately five days), and enables them to choose the best embryos
for transferring to the uterus.
The research suggests frozen embryo
transfer in IVF may lead to healthier babies, owing to a good birth weight and ability for the foetus to last the course of pregnancy without being premature.
This meta-analysis compares the effect of elective single embryo
transfer versus double embryo
transfer on pregnancy outcomes by combining data from the 1,367 individual patients in the five substantial published trials and three other unpublished trials of single embryo
replacement, two of which were stopped.
In one study involving women younger than age thirty-six with good-quality embryos
transfers increased the live birth rate from 39 to 43 percent, but the multiple birth rate increased from 1 to 33 percent.
Considering the beneficial effect of temporary period of culture between embryo
biopsy and cryopreservation on post warming survival rate of embryos
and considering the cryotolerance of In Vitro Produced (IVP) embryos
as a criteria to evaluate the quality of IVP embryos
, this study was conducted to evaluate the effect of age and cell number of embryos
at the time of biopsy on the quality of biopsy derived blastocysts.
Swedish researchers report that women who receive only one embryo
during in-vitro fertilization (IVF) are just as likely to conceive and give birth as those who receive two embryos
However, its efficiency has been very low with only 1-5% of reconstructed embryos
becoming live offspring upon embryo
transfer (Betthauser et al.
The meeting was the first national conference on embryos
, called "Emerging Issues in Embryo
Adoption and Donation.