Sentences with phrase «existing embryonic stem»

Such an immunological exemption could alleviate many concerns about using cells for therapy that don't exactly match the recipient's immune system - such as existing embryonic stem cell lines that are not directly derived from the recipient.

Importantly, researchers must still study existing embryonic stem cell lines — the gold standard — to rule out any hidden risks in the lab - made cells, he says.

In 2001, after President Bush limited federally funded research to 69 existing embryonic stem cell lines, Melton launched a private fund - raising crusade and developed 17 new lines that are now available to any reputable stem cell researcher.

He ruled that work on existing embryonic stem cell lines derived outside federally funded labs did not violate a ban on the destruction of embryos.

Not exact matches

In August of last year, President Bush approved the use of federal funds to support research on a limited number of existing human embryonic stem cell lines.

Although he never banned this research outright, President Bush limited federal funding for research to the embryonic stem cell lines that existed before August 2001, thus drawing a line at destroying human embryos created after that date.

Existing European patents involving embryonic stem cells — most of which were issued in the United Kingdom — will not be invalidated immediately, but lawsuits challenging individual patents will use the ruling as guidance.

Consequently, a fundamental argument against using embryonic stem cells and therapeutic cloning can not be derived from existing constitutional law and additional court decisions.

«Perhaps there are some mammary gland stem cells that can be coaxed to have a slightly broader potential than normal, but I very much doubt that embryonic - like cells normally exist in the breast,» says Robin Lovell - Badge of the National Institute for Medical Research in London.

In one promising approach, cellular reprogramming, stem cells can be generated by fusing adult skin cells with embryonic stem cells from existing cell lines.

Stem cell advocates have been expressing serious worry that ethical requirements spelled out in the draft guidelines — in particular, informed consent procedures for embryo donors — will rule out the use of many existing human embryonic stem cell lines, including the 21 lines approved under the Bush AdministratStem cell advocates have been expressing serious worry that ethical requirements spelled out in the draft guidelines — in particular, informed consent procedures for embryo donors — will rule out the use of many existing human embryonic stem cell lines, including the 21 lines approved under the Bush Administratstem cell lines, including the 21 lines approved under the Bush Administration.

Although embryonic stem cells are naturally pluripotent, iPS cells are created by scientists from existing adult cells, such as skin or blood.

Tensions have escalated since August 2001, when President George W. Bush limited publicly funded research on embryonic stem cells to already existing lines.

In August of last year, President George W. Bush announced that scientists who received public research money could use only the human embryonic stem - cell lines that already exist — a decision that dismayed many researchers.

The only stem cell research he would permit, Bush said, was research using existing embryonic lines as well as so - called adult stem cells, which occur in anyone of any age.

Human embryonic stem cells can exist in two different states that are termed naïve (the ground state) and primed (the state before differentiation into a specialised cell).

Organized by the South Dakotans for Lifesaving Cures, the petition drive comes eight months after President Barack Obama overturned a 2001 order by then - President George W. Bush that barred the National Institutes of Health from funding embryonic stem cell research beyond the existing stem cell lines.

The order severely restricts embryonic stem cell research to existing lines of cells and bans federal funding for any research expansion outside his directive.

In this respect, EC cells from teratocarcinomas resemble embryonic stem (ES) cells from normal animals, which scientists knew existed, but could not isolate.