Sentences with phrase «cloned embryos created»

For therapeutic or embryo cloning, the objective is not to create adult animals, but to extract stem cells for research from the cloned embryos created.

Not exact matches

Tonight I ask you to pass legislation to prohibit the most egregious abuses of medical research: human cloning in all its forms, creating or implanting embryos for experiments, creating human - animal hybrids, and buying, selling, or patenting human embryos.

Benedict argued that non-conjugal reproduction such as in vitro fertilization had created «new problems» ¯ the freezing of human embryos, for instance, and the selective abortion of medically implanted embryos, together with pre-implantation diagnosis, embryonic stem - cell research, and attempts at human cloning.

After months of discussion, the group drafted a call to ban all human cloning and to limit ESCR to the use of the «excess» embryos created in the process of in vitro fertilization (IVF).

Unlike the controversial method of tissue harvesting that requires some human embryos to be destroyed, the new cloning technique can use a patient's own skin cells — combined with an unfertilized human egg — to create tissue with a DNA match.

For reproductive cloning - which creates animals with an identical genetic make - up to an already existing animal - the embryo must then be transferred to a host body, in which to grow.

However, in 2007 Professor Wilmut announced that he had decided to change to an alternative method of research pioneered in Japan, known as direct reprogramming or «de-differentiation», which could create human embryonic cells without using human eggs or cloning human embryos.

Besides the low efficiency of cloning — just 1.7 per cent of embryos came to term — another challenge to creating transgenic dogs is controlling where in the nuclear DNA a foreign gene lands.

To solve this, West proposed «therapeutic cloning» — taking the nucleus out of a patient's cell, transferring it into an egg cell to create a cloned embryo, then using that embryo to derive patient - matched stem - cell lines.

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.

Varmus pointed out that a special review group he created in 1994 to give advice on embryo research had already judged human cloning to be «repugnant» — a view he endorsed.

Using cloning technology, their «Lazarus Project» created an embryo of the extinct gastric - brooding frog.

The paper not only seemed to validate the group's claim a year earlier that it had created a single cell line from a cloned human embryo, but it also reported a huge increase in efficiency for the technique.

A U.S. company has received two British patents that appear to grant it commercial rights to human embryos created by cloning.

Some scientists, such as Kevin Eggan at Harvard, were disappointed that NIH didn't open the door to the use of embryos created for research purposes — including through somatic cell nuclear transfer (cloning) and parthenogenesis (from an unfertilized egg).

Stem cell researchers call them «a major step in the right direction,» although some were disappointed that NIH didn't open the door to the use of embryos created for research purposes — including through somatic cell nuclear transfer (cloning) and parthenogenesis (from an unfertilized egg).

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

In a 2009 study, University of Georgia at Athens cloning expert Steve Stice created 29 chimeric piglets by injecting pluripotent stem cells into pig embryos before implanting them into a surrogate womb.

Antinori said his team would begin creating cloned embryos «within a month or so».

Using stem cells from the resulting embryos, Wakayama and his team were able to create clones that grew into fertile adult mice.

A key difference, however, is that Dolly's donor cell came from adult udder cells growing in lab dishes (see ScienceNOW, 24 February), while the donor cells used to create the monkey clones came from early embryos.

If you can create an embryo genetically identical to the adult — that is, a clone — you can harvest immune - compatible cells to replace any tissue you might want without fear of rejection.

And if the cells prove to be functional enough for nuclear transfer but not for producing offspring, they might refute one of the main arguments against therapeutic cloning: that it creates embryos only to destroy them.

Opponents said that the measure should have banned somatic cell nuclear transfer; it criminalized only the «implantation» of an embryo into a woman to create a human clone.

But the favored reprogramming technique, somatic cell nuclear transfer (SCNT), otherwise known as research cloning, is fraught with ethical pitfalls as well as technical difficulties because it entails creating a human embryo by inserting an adult cell nucleus into an ooctye.

One team in Japan, and another in the US, have independently shown it is possible to produce embryonic - like stem cells directly from a patient's own skin cells without having to create and destroy a cloned human embryo first.

Today, Roe said three outside labs have determined those two lines were not derived from cloned embryos, but instead came from embryos created by in vitro fertilization at MizMedi Hospital in Seoul, which collected oocytes for Hwang's research.

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.

Benedict argued that non-conjugal reproduction such as in vitro fertilization had created «new problems» ¯ the freezing of human embryos, for instance, and the selective abortion of medically implanted embryos, together with pre-implantation diagnosis, embryonic stem - cell research, and attempts at human cloning.

A team of scientists from the New York Stem Cell Foundation Laboratory created 13 early - stage human embryos that were partial genetic clones of diabetic patients.

One of those teams created a cloned embryo from the somatic cells of a diabetic patient; this embryo was then destroyed in order to generate an insulin - producing embryonic stem cell line.

After more debate, the government may change this allowing cloned human cells and embryos to be created for research purposes as long as they are destroyed after 14 days.

The research team at Oregon Health & Science University used skin cells from rhesus macaque monkeys to create the cloned embryos.

Most recently, in February 2003, Senator Arlen Specter, Republican of Pennsylvania, and others introduced legislation that would expand research options by allowing cells to be newly isolated from embryos, including cloned embryos — those created for research purposes only and not through fertilization.

This includes a ban on embryo splitting and other techniques that might create a clone without fertilization.

Scientists respond as maverick cloning scientist Dr Panos Zavos announces successful experiments to create cloned embryos using DNA from dead people.