Sentences with phrase «of viable embryos»

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.

Not exact matches

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.

I support the mother's right to control her own body against government - mandated incubation of non-externally viable embryos and fetuses.

If there is a problem in the genetic makeup of your sperm or eggs, assistive reproductive technologies, such as screening the embryo before implantation, can help you achieve a viable pregnancy.

Over age 40, 1/3 to 1/2 of all women will not find a viable embryo after CCS testing.

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.

But in March, Lichun Tang of China's Beijing Proteome Research Center and colleagues reported using CRISPR / Cas9 to correct disease - causing mutations in a small number of viable human embryos.

There should be a complete ban on the implantation of a human embryo created by the application of cloning technology into a womb, or any treatment of such a human embryo intended to result in its development into a viable infant.

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.

Australian team uses genetic markers to identify the most viable embryos to eliminate risk of multiple pregnancies

In July, researchers announced they had successfully edited the genome of viable human embryos with CRISPR; the technique allowed them to fix a disease - causing mutation in the embryos» DNA (though some are now skeptical of the researchers» results).

In a step that some of the nation's leading scientists have long warned against and that has never before been accomplished, biologists in Oregon have edited the DNA of viable human embryos efficiently and apparently with few mistakes, according to a report in Technology Review.

This is because of the obvious concerns about the heritability of the genetic alterations induced, and the way in which such research could spread from work on «non-viable» embryos, to work on viable ones once this type of research had been accepted in principle by international regulatory bodies.»

Is the implication of your article that we should accept the medieval etymology of the word conception as the true definition of the beginning of life, when the embryo is «imbraced» by the womb and therefore viable?

In most cases, dozens of clone embryos must be created before one yields a viable pregnancy.

They've certainly been successful in making their voices heard in recent years — for example, over the question of what to do with the 400,000 frozen human embryos left over from in vitro fertilization with no viable future.

Six years ago, President Bush limited federally funded research to about 20 viable lines of cells that had been extracted from embryos prior to August 9, 2001.

The first results of gene editing in viable human embryos reveals it works better than we thought, but that there's another big problem blocking the way

Using the gene - editing tool known as CRISPR / Cas9, the researchers have successfully edited disease - causing mutations out of viable human embryos.

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.

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.

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.

Our No. 2 story, on gene editing in viable human embryos, reminds us of the many intricacies of human biology.

Embryos normally implant at the blastocyst stage — when they have divided into about 100 - 200 cells — and it is and it is known that blastocysts have a much greater chance of implanting successfully and resulting in an ongoing, viable pregnancy.

Information on the embryo quality rating was not available to clinicians during the IVF procedures that were part of the study, but when researchers unblinded the study results, they found that patients with at least one «high» rated embryo transferred had a 54 percent viable pregnancy rate compared to a 34 percent rate for those following transfer of only a «low» rated embryo.

«One of the holy grails of embryology is finding a way to determine which embryos are most viable,» Wheeler said.

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.

Although the embryos were not viable and not intended for clinical use, this proof - of - principle research raised ethical concerns and emphasized the need to continue to have discussions on the scientific and social impact of this technology and its use in countries around the world.

«To achieve long - term storage of viable cells, including embryos, requires far lower temperatures of at least -140 C in the presence of cryoprotectants.»

Shoukhrat Mitalipov of Oregon Health and Science University led research in which scientists edited the DNA of viable human embryos.

The work was done on 86 very early embryos that weren't viable, in order to minimize some of the ethical concerns.

But, after researchers at Oregon Health and Science University managed to change the mutated version of the MYBPC3 gene to the unmutated version in a viable human embryo last month, the predictable bioethical debate was reignited, and terms such as «Designer Babies» got thrown around a lot.

In fact, the NIH report to the President refers to this technology as one of the viable alternatives to the destruction of embryos.