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Tag: "stem" at biology news

Investigating the measles virus as a tool to kill multiple myeloma

...must not have had allogeneic (from another person) stem cell transplants and must either have had a prior measles infection or been vaccinated against it. In the 1970s, measles infections were observed to cause regression of pre-existing cancerous tumors in children. This information was noted, but no...

Genetic fingerprints identify brain tumors' origins

...distinct patterns of expression in normal glia and stem cells from these brain locations, suggesting that genetic fingerprints can be used to identify the potential origins of brain tumors. "There's been a movement in recent years to link normal brain development to pediatric neuro-oncology, and these ...

Scientists identify pancreatic cancer stem cells

...the first time, identified human pancreatic cancer stem cells. Their work indicates that these cells are l...the researchers demonstrate that only 100 of these stem cells are needed to produce human pancreatic cancer in half of mice tested. They also found these ce...

Risk of HIV transmission highest early in infection

... and effective prevention strategies are needed to stem HIV transmission during primary infection and block the spread of drug-resistant viruses. ...

Row over study puts Korea's scientific community under scrutiny again

...he wake of the recent scandal over Woo-Sok Hwang's stem cell research. Dr Kim claims a paper about prem...the severely damaged reputation and credibility of stem cell and life science research in Korea after the Hwang scandal." Professor Kim's intervention le...

Study shows isolation of stem cells may lead to a treatment for hearing loss

...face permanent hearing loss. Identification of the stem cells from the adult cochlea would be a major step...g loss. These researchers have isolated “cochlear stem cells?located in the inner ear and already primed for development into ear-related tissue due to the...

The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better

Female stem cells derived from muscle have a greater ability t... difference in regenerative capabilities of muscle stem cells based on sex. This finding could have a major impact on the successful development of stem ...

Cambodian vulture nests offer hope for species

...ion Project has already been successful in helping stem the decline in Asia's vultures in Cambodia through a combination of scientific research, direct protection, food supplementation and awareness-raising. Satellite-collaring of animals has lead to a greater understanding of which areas are important to...

Woven scaffolds could improve cartilage repair

...ns to repair damaged joints with the patient's own stem cells. "If further experiments are successful, th...e custom-designed scaffolds with cartilage-forming stem cells and chemicals that stimulate their growth and then implant them into patients during a single ...

Type of stem cell found to reside in transplanted lungs

A new study involving a type of stem cells from the lungs of transplant patients demons...plantation. The researchers studied mesenchymal stem cells (MSCs), a type of progenitor cell that most commonly originates in the bone marrow. In this st...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

Human embryonic stem cells (hESCs) hold great promise for benefiting de...s website on March 11, 2007. To determine whether stem cell biology might play a role in benefiting degenerative diseases, the investigators first chose to...

Synthetic peptide targets latent papilloma virus infections

...er in the world. The virus hides out in epithelial stem cells, which are naïve cells at the base of the skin that can turn into many of the various types of cells that make up the skin. As these cells divide and differentiate into skin cells, the viruses hitch a ride on the cells' chromosomes but do not b...

Researchers find gene mutation that causes infertility in male mice

...y. While most studies on the genetics of fertility stem from analyses of mice that have had a custom gene "knockout," this is the first to reveal a dominant mutation that leads specifically to infertility in a mammal. The researchers believe this kind of dominant effect is closer to how real-life infertil...

Cancer-killing invention also harvests stem cells

...ted a device that filters the blood for cancer and stem cells. When he captures cancer cells, he kills them. When he captures stem cells, he harvests them for later use in tissue engineering, bone marrow transplants, and other appl...

Liver regeneration may be simpler than previously thought

...s to understand whether the regenerating cells are stem cells. Studies have shown that adult stem cells are involved in the repair of many organs, but in the case of the liver, the cells repairing i...

Scientists discover new, readily available source of stem cells

...st report showing the isolation of broad potential stem cells from the amniotic fluid that surrounds devel...at within this cell population we can capture true stem cells?' The answer is yes." Atala and colleagues discovered a small number of stem cells in amnio...

Early-stage sperm cells created from human bone marrow

... from male volunteers and isolated the mesenchymal stem cells. These cells have previously been found to ...partly-developed sperm cells called spermatagonial stem cells, which are an early phase of the male germ cell development. In most men, spermatagonial cell...

Scientists clone mice from adult skin stem cells

For cells that hold so much promise, stem cells' potential has so far gone largely untapped.... Medical Institute scientists now shows that adult stem cells taken from skin can be used to clone mice using a procedure called nuclear transfer. The findi...

Tumor-suppressor gene is critical for placenta development

...In this study, researchers shut off the Rb gene in stem cells that give rise to most of the placenta, resu...ying enzyme and the gene markers in their placenta stem cells. The enzyme removed the DNA between the two markers, leaving the embryos without a working Rb ...

UW launches study testing adult stem cells for heart damage repair

...el clinical trial investigating if a subject's own stem cells can treat a form of severe coronary artery d...he research physician knows if he received his own stem cells or a placebo substance. This trial is the first human Phase II adult stem cell therapy study...

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