Sentences with phrase «viable embryos»
The phrase "viable embryos" refers to embryos that are capable of developing and growing into a healthy fetus. It means that these embryos have the potential to survive and become a baby if they are implanted in the uterus of a woman. Full definition
This helps us identify the healthiest, most viable embryo to be transferred, which helps increase the success rate and reduce the incidence of multiple pregnancy.
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If the cells can be fertilized and develop into viable embryos, and if human ES cells turn out to have similar powers, such cells could allow researchers to get around some of the expense and ethical questions that arise from using donated eggs for therapeutic cloning experiments.
(The work will be done in viable embryos, but the researchers» licence requires that experiments be stopped within 14 days.)
Preimplantation Genetic Screening and Diagnosis offers the chance to avoid serious genetic disorders in our offspring by allowing us to select the most viable embryos for implantation.
«The finding that animals survived rehydration after 10 days in open space — and then produced viable embryos as well — is really remarkable.»
The following month, researchers at the Whitehead Institute in Cambridge, Massachusetts, created embryos that lack a gene required for placental growth, potentially appeasing those who object to the creation of viable embryos for research.
The couple, a pair of Texas lawyers who shared Watwood's pro-life convictions, wanted to give the additional viable embryos they had produced a chance.
A week later, they inserted viable embryos into surrogate mothers that carried the calves to term.
Because there are currently no precise methods for selecting viable embryos, couples typically choose to implant multiple blastocysts to enhance their chances of conceiving, which may also result in multiple pregnancies.
Other Chinese groups had previously reported editing human embryos that could not develop into a baby because they carried extra chromosomes, but this is the first report involving viable embryos (SN Online: 4/8/16; SN Online: 4/23/15).
The 13 sheep in the new study were created from 2005 to 2007, when biologist Keith Campbell, a key member of the Dolly team, was trying to improve cloning — creating more viable embryos to implant in the wombs of surrogate mothers, more pregnancies, and more live offspring.
None of the embryos were gestated, and the authors of the study readily admitted that their error rate was too high for use on viable embryos.
The Duponts expected only one puppy, but the lab in South Korea eventually got three viable embryos from the cloning process.
Another Chinese team, from Guangzhou Medical University, in March became the first to report repairing disease - causing mutations in viable embryos, but some still contained a patchy mix of edited cells — a phenomenon called mosaicism.
Thus far, the Newcastle team has worked with abnormally fertilized human eggs that will not develop into viable embryos; the new money will allow them to use normal, leftover eggs from IVF therapy.
PGD helps us determine which embryos are unaffected by a specific genetic disorder, allowing us to transfer the healthiest, most viable embryos into the uterus.
Over age 40, 1/3 to 1/2 of all women will not find a viable embryo after CCS testing.
Once retrieved from the woman's ovaries, the eggs are fertilized with sperm in a petri dish in hopes that one or more will grow into a viable embryo.
The embryonic cells can develop into replacement organs in the lab or be injected into an egg, where they develop as a viable embryo and are literally born.
If either method manages to produce a viable embryo, it would be shipped after five cell divisions to a lab in Thailand.
It's just possible, says Loi, that it could result in a viable embryo that could be successfully nurtured to term by a surrogate mare.
For their part, the researchers believe that once they sort out the technical issues of getting an egg subjected to these IVF procedures to develop into a normal, viable embryo, the benefits of allowing a couple to have a healthy child far outweigh other risks or ethical concerns.
Her research is defining mechanisms by progression through meiosis is developmentally controlled in the oocyte, an essential aspect in the production of an egg that can yield a viable embryo.