stem-cells

Professor Lovell-Badge, however, said the Chinese paper did not prove that the eggs that gave rise to babies came from the stem cells.

The reason embryonic stem cells are valued by scientists is that the cells' descendants can turn into any other sort of body cell.

Embryonic stem cells are the source of every cell, tissue and organ in the body.

Spermatogonial stem cells (SSCs) are the only stem cells in the body that transmit genetic information to the next generation.

But a modified approach that does not involve viruses is likely to be the ultimate way of making human stem cells.

Adipose stem cells have been used in numerous centers for cosmetic and reconstructive applications in humans, March said.

Marban said he made the discovery accidentally while trying to reproduce cardiac stem cells.

But the general thinking seems to be that cancer stem cells represent a small population of the cells in a tumor.

Aside from transforming plain old human skin into stem cells, the placenta and amniotic fluid seem to have an abundance of these cells.

Her team is now testing to see whether stem cells will turn into endothelial cells in the channels and into muscle cells elsewhere.

Hematopoietic stem cells have been shown to migrate to distant parts of the body in response to injury signals, as have cancer cells.

Other researchers have been trying to get stem cells from liposuction specimens.

The president said he also signed an executive order calling on federal agencies to explore alternatives to human embryonic stem cells.

'Because the stem cells are "off the shelf" and ready to use, it could be a convenient and universal therapy. '

If there was a way of extracting the stem cells without destroying them, I would not be opposed to it.

The Republican party cannot be a tool of the evangelical movement, on evolution, stem cells and a host of other issues.

After a week, most of the virus infected stem cells had transformed into fat cells, but the ones that were not infected had not changed.

Ultimately, they hope to be able to develop a cream that could be applied to the scalp to help the stem cells grow normal hair.

with addition of the drug to the culture dish , the vast majority of cells , those that had not reverted to embryonic stem cells , died.

Mice with broken legs seem to be healing three times faster than normal, thanks to a protein that makes stem cells divide.

The stem cells had been removed when the embryo was a few days old and were stored in tanks of liquid nitrogen.

"Identifying stem cells that can be encouraged along the path to becoming heart muscle is a paramount scientific goal, " he said.

In the statement, he said it demonstrates that stem cells can be produced without interfering with the embryo's potential for life.

While the surgeon was at it, he injected the governor with stem cells, in an experimental procedure meant to speed recovery.

"IVD sperm can only be produced from stem cells with male [XY] chromosomes, " he said.

Observation revealed that this method of cultivating stem cells does not appear permanent host cell genetic damage.

He was the first scientist to identify embryonic stem cells, which can be adapted for a wide variety of medical purposes.

However, there is still much debate concerning the unique nature of the markers that distinguish cancer stem cells in the breast.

Conclusion: Autografting of corneal limbus stem cells might be a simple, safe and effective surgery for recurrent pterygium.

Biotechnology companies said the US move would accelerate the commercialisation of stem cells, which is still at an early stage.

The stem cells grew on these scaffolds for a week before the tubes were sewn into the major artery in each rat's abdomen.

To determine whether or not the donor age influences osteogenic differentiation capability of adipose-derived stem cells.

The match means the stem cells, the building blocks of all bodily tissues, are unlikely to be rejected by the body's immune system.

Such a role has been shown in embryonic stem cells, germline stem cells and various somatic tissue stem cells.

The research centres around stem cells - the body's 'mother' cells which can turn into any other type of cell.

The hope was that the virus would mingle with the bone marrow cells and inject the healthy gene into the stem cells.

For now, he and other scientists said, the new work is valuable for showing that stem cells can be produced through cloning in monkeys.

Dubbed as "master cells" , the stem cells have the potential to be used to grow any part of the body.

Other researchers are experimenting with similar approaches by taking stem cells from bone marrow or harvested blood vessels, he said.

Last week, Geron Corp. said it had transformed human embryonic stem cells into the pancreatic cells that produce insulin.

"Any stem cells that might one day be used for transplantation have to be as close as possible to normal stem cells, " Fan said.

Conclusion Autologous stem cells transplantation might be a safe and effective method for decompensate liver cirrhosis.

This was repopulated with cells from Ms Castillo's windpipe and nose, and stem cells from her bone marrow .

The experiment, the first reported cloning of human stem cells, means the so-called therapeutic cloning is no longer a theory but a reality.

The practical significance of these distinctions can be observed when hematopoietic stem cells or their descendants are transplanted.

The therapeutic effects of neural stem cells in cerebral infarct have been a key point in the researches.

Literally, you could not pick up a pencil off a bench if you were working with embryonic stem cells.

Adult stem cells can regenerate and turn into different types of specialized cells to help the body heal itself.

A major finding was that the concentration of stem cells was greatest in the lower abdomen and inner thighs.

Stem cells are primitive cells from early-stage embryos capable of developing into almost every tissue of the body.

Dr Yamanaka's team has, for instance, been able to persuade its stem cells to turn into nerve cells and heart cells.

Skin cells can be regressed to make stem cells, which in turn can be grown into a range of replacement tissues and organs.

Aden said he believed the ruling prohibits any government-funded research involving embryonic stem cells.

Stem cells are the body's master cell, acting as a source for the various cells and tissues in the body.

Several teams have tried to make animal-human hybrids as a source of embryonic stem cells, the master cells of the body.

ISCo has found a way of producing embryonic-like stem cells from unfertilised eggs.

In his evidence to Congress, he reported that he was not allowed to speak, or issue reports, on stem cells.

But with the new method, human cloning for stem cell research, like the creation of human embryos to extract stem cells, may be unnecessary.

A 10-year-old British boy has become the first child to undergo a windpipe transplant with an organ crafted from his own stem cells.

In the usual manner, the planarian stem cells migrated to the site of the wound, sensed what was missing and began rebuilding.

Embryonic stem cells, which replicate indefinitely in the culture dish, are capable of forming almost any tissue in the body.

Embryonic stem cells: embryonic stem cells known as the "universal cell" , which can be differentiated skin cells and other tissue cells.

The researchers focused on how hematopoietic stem cells developed into one of two types of white blood cells: macrophages or neutrophils.

Hematopoietic stem cells known as pluripotent stem cells, present in the hematopoietic tissue in a group of primitive hematopoietic cells.

Adult stem cells are located in tissues throughout the body and function as a reservoir to replace damaged or aging cells.

One of Barack Obama's first acts as president was lifting the U. S. restrictions on medical research using embryonic stem cells.

But no one had found a gene that regulated self-renewal in fetal but not adult hematopoietic stem cells.

If it wasn't for the political and ethical turmoil surrounding them, stem cells would hardly be a household term.

These bind to a protein called CD20 that sits on the surface of cancer stem cells. It was expected to kill them.

Injecting stem cells into a developing fetus might sound risky, but it could prolong the lives of children with brittle bone disease.

If researchers could control the production and differentiation of stem cells, they may be able to use them to replace damaged tissues.

Having shown that the stem cells worked in healthy mouse brains, Dr Zhu tried them out on injured mouse brains.

Embryonic stem cells are considered the most powerful kind of stem cells as they have the potential to give rise to any type of tissue.

However, it would be unwise to ignore the potential for either adult or embryonic stem cells to result in a meaningful new approach.

We identified telomerase activity in follicle dermal stem cells and marrow MSCs and demonstrated that they were capable of clonal expansion.

Researchers say they have found a way to produce stem cells from human embryos without harm to the embryos.

Researchers have shown that bone marrow stem cells injected into a damaged inner ear can speed hearing recovery after partial hearing loss.

The scientists who discovered microRNAs were not trying to prevent AIDS, grow stem cells or treat cancer.

Embryonic stem cells have the potential to be any type of cells, a characteristic known as pluripotency.

As a comparison, the researchers injected rats with dead human stem cells, which would not affect disease progression.

Up to now, human embryonic stem cells have been derived at a later stage of development when the embryo consists of about 150 cells.

There was no significant benefit from receiving a higher dose of stem cells.

It was clear the 'ignition point' for the disease was to be found in the stem cells.

Embryonic stem cells are the ultimate master cell of the body, giving rise to all of the tissues and organs.

There has also been a significant body of work looking at ways of producing beating heart cells from stem cells.

But millions of her stem cells, stored in a freezer in California, might one day help boost her population's ranks.

"If I were in high school, I can't imagine anything more interesting than stem cells, " says Melton.

Question of the Month: Can Stem Cells Be a Hope for New Life?

This transplant of blood stem cells is called "autologous nonmyeloablative hematopoietic stem cell transplantation" , or AHST.

Stem cells are the body's master cells, giving rise to all the tissues, organs and blood.

Cord blood stem cells for hematopoietic stem cell transplantation in the UK: how big should the bank be?

You might be, after the recent announcement that scientists in Newcastle, England, have created human sperm from embryonic stem cells.

Mesenchymal stem cells(MSCs) with capacities of multi-differentiation and anti-immune rejection have been widely used in medicine research.

Some experts believe that drugs that kill most tumor cells do not affect cancer stem cells, which can regenerate the tumor.

Stem cells can be used for reproductive purposes as well as therapeutic ones.

Hair follicle stem cells are considered to be slow cycling cells endowed with a superior proliferative capacity and clonogenicity.

The next step is to try to create stem cells without the leftover chromosomes from the egg.

This approach stimulates bone growth temporarily and so might be better than adding new stem cells, which can divide uncontrollably.

The Japanese team used mouse stem cells - immature cells that have the ability to turn into many types of body tissue.

Their work revealed how the chromosomes can be copied and has helped further our understanding on human ageing, cancer and stem cells.

Saoirse's stem cells were collected from her blood after rounds of chemotherapy.

Fractions of normal and cancer stem cells are naturally more resistant to toxic injuries than any other cell type.

They suggest both that cancer stem cells are very relevant indeed to survival, and that going after them is an excellent idea.

In the case of an injury, vibration acts on stem cells, the master controllers of the healing process.

Years of studying stem cells in hair roots has allowed them to find ways of tweaking the natural processes to produce new beauty products.

Adult hematopoietic stem cells (HSCs) reside in the bone marrow in stable micro environments known as the stem cell niche.

He is weight bearing further on his arms now which he was not doing at all prior to stem cells.

Mesenchymal stem cells (MSC) have been identified in a variety of adult tissues as a population of pluripotential self-renewing cells.

But we believe that all of the ependymal cells are stem cells, and that they all have the ability to be activated.

abstract: BACKGROUND: Mesenchymal stem cells(MSCs) could differentiate into nerve cells, but the molecular mechanism is still unknown.

These induced pluripotent stem cells are cells which are returned to a very early, undifferentiated stage.

Such a move would avoid the ethical issues associated with using stem cells descended from human embryos.

Amongher awards and honors is amedalfrom the president of Italy, CarloAzeglioCiampi, for her work on stem cells and Huntington's.

The team went on to transplant a layer of stem cells between the degenerating mice retinas and healthy donor tissue (whole retina).

It recommends the use of therapeutic cloning in scientific research involving stem cells, which can evolve into almost any other cell.

Stem cells with female [XX] chromosomes can be prompted to form early-stage sperm but do not progress further.

They found that in young rats, the hippocampus contained 50, 000 stem cells -- and, significantly, this number did not diminish with aging.

This opens new ways of thinking about and treating the cancers. If its stem cells are eradicated, the rest of a tumour may die off.

U. S. researchers have found a chemical (salinomycin)that can kill breast cancer stem cells .

Embryonic stem cells are powerful for their ability to become any other cell in the body.

In a famous study five years ago, genetic engineers disabled one of the methyl-adding enzymes in embryonic stem cells.

Stem cells are the "master cells" that produce each of the specialized cells within the human body.

Currently, bone marrow derived mesenchymal stem cells (MSCs) are the best available cell population for tendon tissue engineering.

Adult stem cells are thought by scientists to be less than their embryonic equivalents.

But by jamming these signals in mice, the team was able to protect the stem cells, called hematopoietic progenitor cells.

Recently, stem cells attract significant attention in cartilage tissue engineering as an alternative to autologous chondrocytes.

Embryonic stem cells are the body's building blocks, cells from which all other tissue types spring.

With an allogeneic stem cell transplant, stem cells are taken from a donor and transfused into the patient's blood after chemotherapy ends.

Many discoveries with other cell types . . . would not happen without ongoing research in human embryonic stem cells.

Ever since the birth of Dolly the sheep, scientists knew that adult cells could, in theory, turn into embryonic stem cells.

Other drugs to help the transplanted stem cells fight the CML without attacking healthy cells are being tested in clinical trials.

NEW YORK - Gleaning stem cells from cloned monkey embryos, as a team of Oregon researchers has done, is an impressive step.

The good news, Fan said, is that the neural stem cells in their study did not share any abnormal characteristics associated with cancer.

They are a special risk with stem cells precisely because such cells can turn into any other sort.

Stem cells are the body's master cells, producing all the body's tissues and organs.

To observe whether the islet stem cells cultured in vitro can be induced to differentiate into pancreatic islet-like tissues.

When an injury kills off the stem cells, scar tissue forms over the cornea, clouding vision and causing blindness.

Those restrictions limited government funding to a small number of existing lines of human embryonic stem cells.

Scientists are now able to transform adult skin or brain cells into embryonic-like stem cells in the laboratory.

Writing in the journal Stem Cells and Development, the Newcastle team say it will be at least five years before the technique is perfected.

These particular stem cells are already used to suppress inflammatory response after bone marrow transplants in humans.

In a study of mice, Yale researchers find the signal for hair growth coming from stem cells in the skin's fatty layer.

Mesenchymal stem cells are commonly harvested from bone marrow. A few studies are on umbilical cord blood-mesenchymal stem cells (UCB-MSCs).

In mice, the researchers were able to make individual prostate stem cells grow into new prostates.

Parallel to the role that normal stem cells play in organogenesis , cancer stem cells are thought to be crucial for tumorigenesis.

The project is a part of an art-science collaboration that aims to inspire the nation with the regenerative potential of adult stem cells.

We're now learning to identify the cancer stem cells and identify those as targets and go for the long-term cure.

Once they were transplanted, the genetic markers of the cells changed to be more similar to those of hair follicle stem cells.

Unlike tumor cells, the transplanted stem cells achieved homeostasis, growing to a stable, constant level and ceasing replication.

The last step is to reinfuse the stem cells, in the hopes that they replicate themselves in a healthy form free of disease.

But it was a very personal experience that brought Melton to stem cells, one that 17 years later he still finds difficult to discuss.

That's because cord blood contains stem cells that could one day save the life of your child or of one of your child's siblings.

It contains multi-potent stem cells which can self renew and go on to develop into mature red cells, white cells and platelets.

Neural stem cells (NSCs) have the ability of highly self-renewal and can be differentiated into neurons, astrocytes and oligodendrocytes.

It may even enable you to bank your own marrow stem cells, when you're younger and healthier, to use in the future, should you need it.

Researchers at Massachusetts General Hospital say they have extracted stem cells from human ovaries and made them generate egg cells.

Just mention the words "stem cells" in a public place and you might find yourself at the center of a raging controversy.

The HFEA-sanctioned research would allow the fusion of human-animal embryos, also known as chimeras, to create stem cells.

At the moment human embryonic stem cells usually come from surplus IVF embryos.

Stem cells have the ability to form many fully differentiated cells of the body, including cardiac myocytes.

However, obtaining pluripotent stem cells from embryos, for research purposes, implies snatching away the lives of the embryos or foetuses.

Cells are the basic unit of life, and was known as the "universal cell" of stem cells is the most important in human cells.

Objective To discuss the treatment of femoral neck fracture by concentrates stem cells from the body marrow.

The existence of such cancer stem cells is still a matter of debate.

Methods Conventional culture method of neural stem cells and immunocytochemistry were used to identify the cells.

To bank cord stem cells, the cord blood is extracted minutes after the birth of the baby and rushed by courier to be processed.

They appear to behave just like embryonic stem cells but are produced directly from skin or other specialised adult cells.

When there is no related donor, the donor can be an unrelated person with stem cells that "match" the patient's.

Stem cells can only multiply and maintain self-renewal in a specific niche.

Unfortunately, because stem cells are so long-lived, they also become the most likely repository for such damage.

Objective To summarize the advancement of breast cancer stem cells and genotyping and analyze the correlation between the two.

BACKGROUND: Differentiation inducing factors and gestational age influence the differentiation potential of embryonic neural stem cells.

Recently there has been a trend towards the use of mesenchymal stem cells from bone marrow and fat.

Stem cells can divide and turn into a range of cell types, including those in organs.

Importantly, a significant over-expression of these molecules were found in the brain tumor stem cells.

For the UCI study, multipotent human neural stem cells were transplanted into the brains of rats that had undergone radiation treatment.

However, a great debate on ethics has also arisened all over the world on the research of human embryonic stem cells.

Objective: research systematically into the isolation, culture and direct differentiation to osteoblast of embryonic stem cells.

The scientists do not know the precise mechanisms by which the stem cells carried out their response.

The donor can be an unrelated person with stem cells that "match" the patient's if there is no related donor.

Skeletal muscle tissues were used to induce the neural stem cells to differentiate into motor neurons like cells.

Sadelain's team's study suggests it might be possible to 'repair' stem cells taken from sufferers and return them to the patients.

Some existing drugs which are known to interfere with stem cells' biochemical pathways could be used to attack them selectively.

Bone marrow mesenchymal stem cells can be isolated, expanded, and stimulated to differentiate into various tissues in vitro.

Conclusion The autologous cord blood serum method could effectively culture mesenchymal stem cells with hepatogenic differentiation ability.

The main application of HAPO is the expansion of hematopoietic and vascular stem cells, therapy for pancytopenia and cardiovascular disease.

Tailoring the geometry (pattern size and distances) enables improving the monitoring of the stem cells' developmental processes.

Doctors are studying the use of a patient's own stem cells in these cases. This is called an autologous stem cell infusion .

As controversial as embryonic stem cell research can be, cloning embryos to produce those stem cells is even thornier .

Taking radiotherapy of tumor stem cells as a contact point, strategy designed by radiobiology can essentially solve this problem.

And what I'm going to show you here is stem cells being removed from the hip of a patient.

One further complication over the past two years has been the discovery and rapid refinement of "induced pluripotent" stem cells.

Peptides expressed in the fibers instruct stem cells that would normally form scar tissue to produce cells that encourage nerve development.

The treatment would consist of a single injection of retinal cells derived from embryonic stem cells left over from IVF treatment.

Bone marrow stromal cells are the unique mesenchymal stem cells which can differentiated into many non hematopoietic tissues.

This means regenerative medicine is still a possibility without the need for embryonic stem cells.

First of all, stem cells from adults have not been isolated for all tissues of the body.

These embryos had a sharp reduction in progenitor blood cell colonies, along with reduced expression of genetic markers of blood stem cells.

An American biotechnology company says it's been forced to stop trials using embryonic stem cells in humans owing to the high costs.

The stem cells were taken out of an umbilical cord not from a dead baby! ! ! !

Two weeks after lesion or sham surgery, they injected human neural stem cells into the left side of each rat's spinal cord.

Another limitation of umbilical cord blood is the relatively small number of stem cells contained within a single sample.

If Skyes is right, women will be able to create all the sperms they need from stem cells.

Immunofluorescence was applied to identify the neural stem cells and their potential of differentiation.

Embryonic stem cells have been the focus in tissue engineering, developmental biology, drug development and gene research.

Just last week, we heard that snorting stem cells might be the best way to get them into your noggin.

The person asked the company if they could take Mr. Kim's stem cells and grow new cells on his behalf.

And stem cells, which have been seen as the stars of tissue engineering, play a less significant role than expected.

Also, such stem cells may have duplicate copies of some mutant genes that have been linked to cancer and abnormal tissue growth.

stem cells created through cloning would provide a patient with a fresh supply of cells with his or her own genetic code .

Stem cells can be collected from these embryos and grown into adult nerve cells that are prone to developing the disease.

Transplantation of stem cells or stem cell-derived progenitors has long been seen as a therapeutic solution to repair the damaged brain.

Stem cells (SC) are characterized by the ability of self renewal as well as specialization into different cell types.

O'Reilly et al. found evidence for more active stem cells while studying how the cells anchor themselves in the Drosophila ovary.

These cells are natural stem cells. There has not been any requirement to genetically modify them.

The patient's own stem cells are used for an auto transplant .

Mechanisms underlying sensation and interpretation of mechanical signals by stem cells are the focus of intense study.

stem cells and myeloma cells, achieving pairing efficiencies up to 70%.

In November a group at Glasgow University implanted stem cells into the brain of a stroke victim.

Conclusion: Neural stem cells from the striatum of embryonic mice can be cultured, passaged and differentiated.

Once the stem cells took hold and grew on the scaffold, the tracheas could be transplanted into the patient without fear of rejection.

These neural stem cells can be induced to differentiate into cholinergic neurons by using embryonic chick skeletal muscle extract.

Mesenchymal stem cells are immune-modulators, which means that they will not be rejected by the patient's immune system.

This review discusses the characteristics of hepatic stem cells and its role in liver regeneration after liver damage.

The majorities of the cells expressed vimentin and nest in, which were the markers for neural stem cells.

Objective: Bone marrow stromal cells are commonly used in bone tissue engineering as osteogenic stem cells.

"We have shown that keratinocytes can be derived from [human embryonic stem cells], " the researchers write.

Stem cells are a small group of cells that are responsible for making all the blood cells in the marrow.

The company said its method makes stem cells from a single cell taken from an eight-cell human embryo .

Since the stem cells are from their own bodies, the patients do not need to take anti-rejection drugs.

"We had no experience cultivating amphibian stem cells and were worried we would kill the few hundred that we had, " says Dr Jensen.

In recent years, embryonic stem (ES) cell-like cells have been obtained from cultured mouse spermatogonial stem cells (SSCs).

Scientists are coaxing these stem cells to develop into the types of cells most affected by a particular disease.

When these were transplanted into infertile mice, the animal played "host" as the stem cells developed into normal-looking sperm.

Chemicals and hormones are then added to encourage the stem cells to turn into liver tissue.

Her team aims to generate stem cells for at least 10 other species, including snow leopards and some species of elephants.

But there may also be another use for such stem cells--delivering anti-cancer drugs to cancer cells.

Researchers found that breast cancer stem cells are regulated by a type of cell derived from bone marrow, called mesenchymal stem cells.

Heart attack patients will be injected with stem cells in a new treatment hailed as a medical breakthrough.

Meanwhile, chemotherapeutic failure may be associated with the drug resistance of cancer stem cells.

OBJECTIVE: To test whether stem cells in human artery can be detected, and to investigate the differentiation potential.

Many scientists believe embryonic stem cells could be used to develop new treatments for diseases.

Cancer stem cells are the cause of tumor formation, recurrence and metastasis.

abstract: Objective To investigate the effects of the donor age on isolation and culture of human bone marrow mesenchymal stem cells(MSCs).

Methods Relevant literatures about breast cancer stem cells and genotyping, which were published recently were collected and reviewed.

Retinal cell rescue: stem cells, remodelling, neuroprotection, apoptosis and replacement of retinal neurons.

The aim is to stimulate embryonic stem cells to develop into mature, oxygen-carrying red blood cells for emergency transfusions.

BACKGROUND: Can neural stem cells (NSCs) differentiate into "epileptic neurons" in epileptic microenvironment in vitro?

Effects of puerarin on the role of neural stem cells are currently not reported as well.

This provides another possible source of matched, unrelated stem cells for patients without a matched, related stem cell donor.