Sentences with phrase «type of stem cell from»

Two months ago, several scientists in Wisconsin and Japan announced that they had successfully created a type of stem cell from ordinary human skin cells that seems to be able to function exactly like an embryonic stem cell without the need to create or destroy human embryos.

The Karlssons were referred to the Karolinska University Hospital in Stockholm, where physicians proposed a radical strategy: Harvest a specific type of stem cell from the liver of an aborted fetus and infuse it through the umbilical vein into the fetus that Madeleine was carrying.

Not exact matches

Skeptic Al, stem cell research is done very ethically and the name includes all types of stem cells, not just ones from umbilical cords.

From the embryonic stem cells, the researchers produced a type of tissue called retinal pigment epithelium (RPE).

The researchers detected this SMN long noncoding RNA, or lnc - RNA (pronounced «link RNA») for short, in human embryonic kidney cells, brain cell samples and neurons derived from the stem cells of healthy people and those with spinal muscular atrophy type I and II.

To develop their «disease in a dish» model, the team took skin cells from patients with Allan - Herndon - Dudley syndrome and reprogrammed them into induced pluripotent stem cells, which then can be developed into any type of tissue in the body.

Trials of cells made from human embryonic stem cells are also poised to begin in people with type 1 diabetes and heart failure, the first time embryonic stem cells have been used in the treatment of major lethal diseases.

TWO types of human ear cell have been grown in the lab from fetal stem cells.

In past projects, scientists have tried to derive various types of differentiated cells from stem cells — such as bone, tissue, nerves or fat — directly from hiPSCs.

As the heart starts pumping a primitive blood - like fluid around the body of an embryo, the change in pressure from the flowing liquid is the cue for cells lining the aorta to change first into blood stem cells, then into all blood - cell types in the body.

Using a mathematical model known as the Ising model, invented to describe phase transitions in statistical physics, such as how a substance changes from liquid to gas, the Johns Hopkins researchers calculated the probability distribution of methylation along the genome in several different human cell types, including normal and cancerous colon, lung and liver cells, as well as brain, skin, blood and embryonic stem cells.

The researchers also found that arteries and veins from the macaques» hearts grew into the new heart tissue, the first time it has been shown that blood vessels from a host animal will grow into and nurture a large stem - cell derived graft of this type.

ERRORS have occurred in a type of stem cell that could be used instead of embryonic stem cells — and in tissues made from them.

They then tried to reprogram skin cells from the animals, turning them into induced pluripotent stem cells (iPS), which are capable of forming other types of cell.

These so - called pluripotent stem cells can be derived from a variety of adult cells and be guided into almost any other tissue type.

One of the many mysteries of stem cells is how they morph from a universal cell type, full of possibility, into one that's tailored for a specific job.

Last week, scientists at Harvard University and Columbia University announced that they had proved the viability of a new way to study a disease — amyotrophic lateral sclerosis — by reprogramming cells from a patient to become pluripotent stem cells, which can then become any type of cell or tissue.

Johns Hopkins researchers have developed a method to efficiently turn human stem cells into retinal ganglion cells, the type of nerve cells located within the retina that transmit visual signals from the eye to the brain.

Stem cells, the blank slate from which the body can build any type of cell it needs, are proving themselves capable of doing what was once thought impossible: healing broken brains.

In Arabidopsis, as in most plants, there is a specific zone near the tip of the root where stem cells transition from a stage of proliferation to one where they differentiate into specific tissue types.

The results help fill in the scientific puzzle kicked off by Dolly's cloning, which proved that mammalian egg cells were capable of dissolving the genetic roadblocks that limit the potential of most adult cells to give rise to only a single type of tissue — that of the organ from which they hail — whereas embryonic stem cells have the potential to become virtually any kind of body tissue.

In a preliminary trial of 23 type 1 diabetes patients, Burt found that stem cell transplants allowed 20 patients to stop their insulin shots for an periods ranging from a few months to five years, and counting, with an average of 30 months.

«With a better understanding of how potential is regulated, it could be possible to broaden the development spectrum of aging stem cells, allowing them to regain their capacity to produce cell types from earlier development stages, which in the long - term perspective could be relevant to future treatment methods for neurodegenerative disease.»

«There have been previous reports of other labs deriving beta cell types from stem cells, no other group has produced mature beta cells as suitable for use in patients,» he said.

The team showed in mouse models that these two types of cells originate from a common precursor stem cell in the embryo.

Each Purkinje cell receives messages from a climbing fiber, a type of neuron that extends from the brain stem and sends feedback about the associated muscles.

«Use of induced pluripotent stem cell (iPSC) technology» — which involves taking skin cells from patients and reprogramming them into embryonic - like stem cells capable of turning into other specific cell types relevant for studying a particular disease — «makes it possible to model dementias that affect people later in life,» says senior study author Catherine Verfaillie of KU Leuven.

Earlier mouse studies by Li and his collaborators had indicated that the expression of several imprinted genes changes as hematopoietic stem cells embark on their journey from quiescent reserve cells to multi-lineage progenitor cells, which form the many highly specialized cell types that circulate within the blood stream.

But how the production of daughter cells from the different stem cell types is coordinated within a single niche is virtually unknown.

This striking finding shows that regulation of cytokinesis is how this niche coordinately produces daughter cells from different stem cell types.

Scientists have demonstrated a method for generating several key types of eye tissue from human stem cells in a way that mirrors whole eye development.

One example is the generation of different types of blood cells from their precursors, the hematopoietic stem cells.

Stem cells obtained from human embryos seem to offer the best chance of new therapies, because unlike other stem cells they have the ability to morph into almost any type of tisStem cells obtained from human embryos seem to offer the best chance of new therapies, because unlike other stem cells they have the ability to morph into almost any type of tisstem cells they have the ability to morph into almost any type of tissue.

The researchers tested their technique on such cultivated stem cells of both a mature and immature type, and on donated human embryos left over from IVF treatments.

«Our group pioneered the development of cell culture technology for harvesting large numbers of stem cells from human bone marrow and human umbilical cord blood,» Dr. Yeh said, noting that stem cells from these two sources are abundant and can be guided into different types of cells using tissue engineering.

Furthermore, stem - cell lines from mice begin to lose their ability to produce many types of cells after as few as 20 generations, and researchers assume the same will prove true for stem cells from humans.

After collecting skin cells from people with and without schizophrenia, Gage and team genetically reprogrammed the cells to become pluripotent stem cells, with the youthful ability to give rise to any of the more than 200 cell types in the body.

Induced pluripotent stem cells can be generated from various types of cells in the body, and they can in turn be coaxed to develop into nearly any other cell type.

They have enormous clinical potential; unlike stem cells isolated from adult tissue that have been the basis of stem cell treatments so far, hESCs can be grown into any of the body's 200 tissue types.

The nose is lined with sensory tissue, the olfactory epithelium, that contains various types of cells, all of which arise from olfactory stem cells (green).

Scientists had high hopes for reprogrammed stem cells, which could be derived from a patient's own tissue and grown into any type of cell in the body.

Embryonic stem (ES) cells, harvested from three - and - a-half-day-old mouse embryos or five - and - a-half-day-old human embryos, are referred to as pluripotent because they can become any of the thousands of cell types in the body.

But many in the field will be waiting for the next steps: testing whether the resulting mouse pups are genetically normal, trying out the technique in other animals, and using other and less controversial types of cells — such as stem cells that can be extracted and cryopreserved from adult testicular tissue — as the starting point.

During embryonic development, organ - specific cell types are formed from pluripotent stem cells, which can differentiate into all cell types of the human body.

Sometimes referred to as the stem cells of the zebrafish eye, Müller glia are the cells from which all other types of retinal cells are regenerated in the fish.

When the researchers measured gene activity, they found that the iPS cells were more similar to the ES cells they descended from than to each other, suggesting that the source of the cells explains many of the disparities researchers had noted between the two stem cell types.

Haruko Obokata of the RIKEN Center for Developmental Biology (CDB) in Kobe, Japan, and colleagues at other Japanese institutions and at Harvard Medical School in Boston reported that simply subjecting blood cells from newborn mice to a moderately acidic environment for 25 minutes and then tweaking culture conditions could generate pluripotent stem cells capable of developing into nearly all of a body's cell types.

Studying mouse embryonic stem cells, they removed Grb2, a protein essential to the ability of the stem cell to transform into other cell types, from the cells.

International and regional organizations collect the numbers of transplants annually by disease, donor type, and stem cell source from countries known to perform HSCT in World Health Organization (WHO) member states.

They coated this scaffold with growth factors — chemical cues to goad stem cells into becoming specific cell types — then soaked the structure in a solution of stem cells extracted from Beyene's bone marrow.