Sentences with phrase «by embryonic cells»

This suggests that embryonic cells may be more useful than adult - derived cells in some cases, and that the strategy described here may promote any intrinsic self - organizing capacity held by embryonic cells.

Throughout his distinguished career (he headed the department of pathology at Harvard Medical School for two decades), Hertig suspected that there was a very early commitment by embryonic cells to become either a fetus or the placenta.

Sometimes these fragments end up being reabsorbed by the embryonic cells.

Not exact matches

One can not help but be intrigued by the implications of the fact that these adult stem cells can be induced to «reprogram» themselves back to their beginning — all the way back to their embryonic beginning.

ESCR scientists are mounting a furious political assault against the lawsuit, currently back in Royce Lamberth's court urging that human embryonic stem cell research continue to be funded by the Feds, hoping to pressure the judge to see it their way.

While the entity generated by deleting or disabling early embryonic genes would produce only an unorganized collection of stem cells, it would do so after a period of what appears to be relatively normal development.

Attempts have been made to bridge this divide by proposing alternative sources of embryonic stem cells for research and therapeutic purposes.

Embryonic stem cells are produced during development by the same process of epigenetic programming that later will produce adult cells such as skin and brain.

Such a single - step conversion of an adult cell into an embryonic stem cell entirely avoids the question of whether an embryo has been created, since the cell produced by ANT - OAR never exhibits any of the properties of a single - cell embryo.

Let us be thankful that a tool for discrediting the pro-life movement (shaming us for opposing magical cures promised by embryonic stem - cell research) has itself been taken out of their hands.

Sullivan went on to suggest that Chaput is using a double standard in the 2008 election by criticizing Catholic supporters of Barack Obama, while turning a blind eye to John McCain's support for embryonic stem cell research.

The ultimate goal of our laboratory is to generate ES - like cells directly from somatic cells by nuclear reprogramming... which converts adult cells back into embryonic state.

In our day it has been thrust into the realm of immediate urgency by advances in embryonic stem cell and cloning technologies.

This question has been the topic of considerable legal and social debate over the years since the Supreme Court's Roe v. Wade decision» debate that has only been intensified by the recent controversies over human embryonic stem cells and human....

He decreed that the case brought by researchers Drs James Sherley and Theresa Deisher, along with a number of Christian groups including the Christian Medical Association, should be heard; and ordered an injunction temporarily blocking federal funding allocated for human - embryonic - stem - cell research.

Embryonic stem cell research has the potential to save millions of lives, but this is being prevented by religious radicals and therefore religion is detrimental to the preservation of life.

The isolation of embryonic stem cells by Dr. James Thomson in 1998 put the issue of stem cell research on the map.

One of the best talks of this conference was given by Dr. Renee Reijo Pera, Professor and Director of the Center for Human Embryonic Stem Cell Research at Stanford University.

Furthermore, by making use of embryonic stem cells and in vitro differentiation, SIF - seq can be used to assess enhancer activity in a wide variety of disease - relevant cell types.»

Fussenegger created his biological calculator by engineering an embryonic kidney cell to respond to two different chemicals: erythromycin (an antibiotic) and phloretin (a compound found in apple trees).

Some scientists had claimed that the lymphatic system was derived from specialized stem cells called angioblasts, whereas others had argued that it originated by the differentiation of pre-existing embryonic veins.

Faced with an often - hostile Congress, Obama enacted many of his signature policies by executive order — from reversing restrictions on research with human embryonic stem cells to helping communities prepare for climate change.

The scientists rescued the microcephaly during mouse embryonic development by removing a protein that caused the loss of stem cells.

Geron was bigger and better funded than ACT, and it was the first company to be approved by the US Food and Drug Administration (FDA) to test a therapy in humans based on embryonic stem (ES) cells.

By analysing the early steps that precede tumor formation, Alexandra Van Keymeulen and colleagues found that expression of oncogenic Pik3ca reactivates a multilineage differentiation program in adult stem cells that resembles to an immature embryonic state.

Endocytosis of Frizzled 4 (Fz4) in human embryonic kidney 293 cells was dependent on added Wnt5A protein and was accomplished by the multifunctional adaptor protein β - arrestin 2 (βarr2), which was recruited to Fz4 by binding to phosphorylated Dvl2.

Oliver Brüstle, director of the Institute of Reconstructive Neurobiology at the University of Bonn, Germany, who had a patent on a method for generating neurons from human embryonic stem cells rejected by the court, called the ruling «the worst possible outcome», and «a disaster for Europe».

Researchers at Geron, meanwhile, had successfully derived neurons from human embryonic stem cells and were pursuing research that would eventually look to repair the damage caused by spinal - cord injuries, a possible use for embryonic stem cells that was much touted at the time.

The latest findings show that genetic defects in the body's ability to manufacture carnitine might be associated with an increased risk of autism because carnitine deficiency interferes with the normal processes by which neural stem cells promote and organize embryonic and fetal brain development.

«We've figured out for the first time how to produce these cells from human embryonic stem cells literally by the billions and billions,» Lanza says.

Some of the researchers at the centre will study the differentiation of stem cells into other cell types, one group by using human embryonic stem cell biology and another by studying early embryo development.

Stephen Minger, director of the Stem Cell Biology Laboratory at King's College London, UK, says he is «intrigued» by the claims but would like to see more proof of the cells» embryonic character.

They then argue that «By creating a financial incentive for embryonic stem cell research — an incentive that by NIH's own admission involves investments of «hundreds of millions of dollars» — and by specifying the precise means by which embryos must be destroyed in order to qualify for federal funding, the NIH necessarily and knowingly subjects embryos to a substantial risk of injury or death.&raquBy creating a financial incentive for embryonic stem cell research — an incentive that by NIH's own admission involves investments of «hundreds of millions of dollars» — and by specifying the precise means by which embryos must be destroyed in order to qualify for federal funding, the NIH necessarily and knowingly subjects embryos to a substantial risk of injury or death.&raquby NIH's own admission involves investments of «hundreds of millions of dollars» — and by specifying the precise means by which embryos must be destroyed in order to qualify for federal funding, the NIH necessarily and knowingly subjects embryos to a substantial risk of injury or death.&raquby specifying the precise means by which embryos must be destroyed in order to qualify for federal funding, the NIH necessarily and knowingly subjects embryos to a substantial risk of injury or death.&raquby which embryos must be destroyed in order to qualify for federal funding, the NIH necessarily and knowingly subjects embryos to a substantial risk of injury or death.»

They also showed that the cells have most of the surface «markers» considered as identifiers of embryonic stem cells and form «embryoid bodies» — characteristic clumps of cells formed by ESCs.

Researchers called them induced pluripotent cells, which are created by enticing cells to turn on genes normally found in embryonic stem cells.

To create them, the skin cells need to be reprogrammed to an embryonic state by exposing them to extra amounts of four critical gene switches.

Human embryonic stem cell (hESC) research had been backed by federal funds for more than a decade, but a surprise August injunction by a federal judge threw the field's future into question.

Then, a team led by Robert Lanza, the chief scientific officer of Advanced Cell Technology Inc. in Marlborough, Massachusetts, and his colleagues published the first results ever of a clinical trial using human embryonic stem cells.

Other researchers have previously cloned animals, including mammals, by transferring nuclei from embryonic cells into such enucleated eggs.

By exposing a magnetically responsive droplet (purple) to a magnetic field, the scientists are able to exert pressure on the surrounding embryonic cells in order to study their response to mechanical forces

► On Wednesday at ScienceInsider, Tania Rabesandratana reported from Brussels that the European Commission has denied a request by a citizens» initiative to «block E.U. funding for research using embryonic stem cells.»

This year, however, a report from researchers at Children's Hospital Boston and the Harvard Stem Cell Institute revealed that Hwang was indeed a pioneer — albeit by unwittingly exploiting an altogether different approach to creating embryonic stem cells.

Another approach to regrowing the hair cells is to use embryonic stem cells, with research in this area led by Stefan Heller and colleagues at the Massachusetts Eye and Ear Infirmary in Boston, US.

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

Heller's team produced the inner - ear hair cells by exposing embryonic cells in the lab to chemical factors which steer the natural development of hair cells.

The only previous demonstration — by researchers led by Shou - Wei Ding, PhD, a professor of Plant Pathology and Microbiology at UC Riverside and co-corresponding author of the current study — was done in embryonic stem cells and in newborn mice.

To see whether cancer stem cell renewal involves a chain of events similar to that used by embryonic stem cells, and whether the process was affected by oxygen levels, Semenza and graduate student Chuanzhao Zhang focused their studies on two human breast cancer cell lines that responded to low oxygen by ramping up production of the protein ALKBH5, which removes methyl groups from mRNAs.

In collaboration with Ding, the lab of Olivier Voinnet at the Swiss Federal Institute of Technology in Zurich also reported in an accompanying paper the detection of viral siRNAs in cultured mouse embryonic stem cells infected by the Encephalomyocarditis virus.

The disease model, described in a new study by a UC San Francisco - led team, involves taking skin cells from patients with the bone disease, reprogramming them in a lab dish to their embryonic state, and deriving stem cells from them.

In addition to providing an alternative to embryonic stem cells for potential use in regenerating diseased tissues, iPS cells are being used to learn more about diseases, especially diseases driven by mutated genes.