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Tag: "stem" at biology news

Bone marrow may restore cells lost in vision diseases

...macular degeneration, we should be able to harvest stem cells to help repair the damage," said senior auth...t types of acute RPE injury. Bone marrow contains stem cells, which have the extraordinary abilities to home in on injuries and possibly regenerate other c...

Prozac's target revealed

...ow, when, and where new neurons are generated from stem cells in the brain. Such work could eventually lea..., called neurogenesis, that converts unspecialized stem cells into mature, specialized neurons. Next, knowing that Prozac treatment somehow increases the n...

Sperm created in the laboratory from embryonic stem cells produce viable progeny

...ave demonstrated for the first time that embryonic stem (ES) cells cultured in the laboratory can produce ...tics associated with primordial and spermatagonial stem cells. The researchers demonstrated that these cells could be further differentiated into mature spe...

Study shows frogs can play key role in stem cell research

...ful ally for scientists working in the key area of stem cell research. Researchers at the University of Ed... the same genetic mechanism that enables embryonic stem cells to divide without limit. This process, which gives embryonic stem cells the capacity to become...

Stem cells found in adult skin can be transplanted and function in mouse models of disease

...ids) and the University of Calgary have found that stem cells derived from adult skin can create neural ce...scovered what type of cells can be made from these stem cells (called skin-derived precursors, or SKPs) based on the role played by neural-crest stem cells ...

Adult stem cell research at UB targets damaged hearts

A specialist in stem cell biology at the University at Buffalo has rece...stigate the potential of bone marrow-derived adult stem cells to treat the serious heart malfunction known as hibernating myocardium. Hibernating myocardiu...

Making a face: A new and earlier marker of neural crest development

...development. The neural crest is a population of stem cells that migrate extensively during development ...onditions surrounding formation of these important stem cells. "Understanding the origin of neural crest cells -- where, when and how they arise -- is a c...

New compound reduces stroke damage

...protected the rats' neurons and also caused neural stem cell proliferation and neuronal differentiation. Diseased animals with motor behavior deficits also showed improvement when they were given the synthetic drug. These results suggest a potential therapeutic application specific FKBP38 inhibitors in t...

Ten years later, Dolly is still making headlines

...to create the world's first cloned human embryonic stem cells, and Dr. Burt Adelman of Biogen Idec, the company that produces the recently re-approved multiple sclerosis drug, Tysabri. The Plenary Session is Monday, June 19 from 8:30 a.m. to 11:30 a.m. at the Hynes Convention Center. Biogenerics ?The ne...

Neural stem cell gene plays crucial role in eye development

... of the eye requires the right amount of a neural stem cell gene be expressed at the right time and place. Neural stem cells are cells that can differentiate into different cell types in the nervous system. In the devel...

Scientists reverse evolution

...a1 gene, which helps control how an embryo's brain stem develops and is compartmentalized into seven secti... embryo dies shortly after birth because the brain stem is malformed, including the part necessary for breathing. (About 20 people with the same defect have...

Scientists identify gene involved in stem cell self-renewal in planaria

...lanarian. The flatworm relies upon a population of stem cells to accomplish this remarkable feat; recent work sheds light on how planarians maintain these stem cells throughout their lives. In a paper to appear in the August issue of the journal Developmental...

New study reveals signaling pathways required for expansion of pancreas stem cells

...iological Chemistry. "Our work focused on guiding stem cells, or pancreas progenitors, to differentiate i...quired that we understand the 'cues' that activate stem cells to turn into insulin-producing beta cells," says Nora Sarvetnick, Ph.D., a Scripps Research pr...

New roles for growth factors: Enticing nerve cells to muscles

...ht-after mysterious substance," says Pfaff. Neural stem cells can now be coaxed to develop into motor neurons in a test tube. In that artificial environment, explains Pfaff, "Most external cues that guide immature motor neurons during embryonic development will be missing." Hence the need to identify axon...

New stem-cell findings can help the body to cure itself

...how many new cells are produced by each intestinal stem cell. The study is published in the latest issue o... cells are often formed by immature cells known as stem cells, but the mechanism regulating the number of new cells produced has remained something of a mys...

With few factors, adult cells take on character of embryonic stem cells

...use embryos or adult mice to behave like embryonic stem cells. The researchers reported their findings in ...ich the researchers designate "induced pluripotent stem cells" (iPS)--exhibit the physical, growth, and genetic characteristics typical of embryonic stem ce...

Protein-coated dental implants could improve bone regeneration

...ed a protein onto implants that directs endogenous stem cells to become bone-forming cells. The result was...le treatments to the use of proteins that directed stem cells to become bone-forming cells. Those proteins ?called bone morpheonetic proteins ?have already ...

Life and death in the hippocampus: what young neurons need to survive

...o the hippocampus, a brain region harboring neural stem cells that give rise to new neurons. Newly born ne...r new neurons had survived originating from neural stem cells in which the NMDA receptor had been eliminated. Listening to Gage, one gets the impression ...

Can you hear me now? Scientists find previously unknown receptors on adult stem cells

For many years, researchers believed that stem cells in the bone marrow spent most of their exist...al Research Foundation have discovered that marrow stem cells -- undifferentiated cells that eventually give rise to the blood cells that fight infection --...

Breast stem cells have features similar to 'basal' tumors

...ve form of breast cancer may originate from breast stem cells that have undergone genetic mishaps. Victo...e, using mouse models, have discovered that breast stem cells do not express receptors for the female hormones oestrogen or progesterone. These and otherfea...

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