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Tag: "bone" at biology news

Stem cells from muscles can repair cartilage

...eek-old rats and genetically engineered to express bone morphogenetic protein-4 (BMP-4). Group 3, the cont...n, MA, notes that although stem cells derived from bone marrow have been extensively investigated for the repair of cartilage defects, the current study is ...

Stem cell mobilization therapy appears to be ineffective in repairing damage caused by heart attack

Therapy that involved bone marrow stem cells did not improve cardiac function..., a growth-factor protein) induces mobilization of bone marrow stem cells, according to background information in the article. Dietlind Zohlnhöfer, M.D., o...

Engineers discover why toucan beaks are models of lightweight strength

...r is a highly organized matrix of stiff cancellous bone fibers that looks as if it was dipped into a soapy... air," said Meyers. "While the inner part of human bone also contains cancellous bone, we don't have the foam interconnections, which produce a much stronge...

Argonne researchers confirm lead in Beethoven's illness

... Laboratory have found elevated amounts of lead in bone fragments belonging to 19th Century composer Ludwi...of his years of chronic debilitating illness. The bone fragments, confirmed by DNA testing to have come from Beethoven's body, were scanned by X-rays from ...

Forgotten by evolution?

...chymal stem cells which had been isolated from the bone marrow of mice. What was particularly special about the process they used was that they did not add growth factors to the culture medium; the goal was to prevent the cells from differentiating prematurely. By doing so, the scientists discovered that ...

New technique puts brain-imaging research on its head

...re, if you will, a mangled quarterback's occipital bone banging the ground, then rebounding. The researchers have mimicked that very motion with humans on a far milder, gentler, smaller scale and captured the movement inside the brain by magnetic resonance imaging (MRI). Philip Bayly, Ph.D., Lilyan and ...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...gues embarked on a worldwide quest for feather and bone samples that would reveal the body chemistry of condors through the ages. "This work was fun," Chamberlain recalls. "First we got modern feathers from the Ventana Wildlife Society in Big Sur, Calif., and other groups involved in the federal Condor Re...

Feds give researchers ok for safety test of adult stem cells in patients with heart disease

...evaluate the safety of using adult stem cells from bone marrow to treat chronic ischemia, a serious form o...afety of the procedure. It will involve injecting bone marrow stem cells at varying doses into the coronary arteries of patients suffering chronic ischemic...

Students discover 11,000 year old remains of Irish Elk

...s who is a specialist in fossil and archaeological bone and plant remains. Environmental historians believe the landscape of the Isle of Man remained suitable for the giant deer for several more hundred years than surrounding islands because of the possible slower rate of colonisation by forest after th...

From one cell, many possible cures

...maged heart muscle tissue . . . regenerate injured bone . . . create new cartilage or skin . . . even reve...vice that will allow stem cells derived from adult bone marrow to be grown in sufficient quantities to permit far more research -- and allow faster growth o...

Scientists sequence DNA of woolly mammoth

...iversity (USA) for the investigation of permafrost bone samples from Siberia. The project also involved p...ieved from the organism's mandible, its jaws. The bone material used in this study is approximately 28,000 years old, as was shown by beta-carbon dating an...

Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method

...ystems had been suppressed and then replaced using bone marrow from another mouse. The donor marrow included cells with genes engineered to be detectable by PET. By inducing cancer in the mice, Witte and his team were then able to observe specific immune cells at work as they reacted to the tumor. "The f...

PET imaging reveals the immune system at work

...ystems had been suppressed and then replaced using bone marrow from another mouse. The donor marrow included cells with genes engineered to be detectable by PET. By inducing cancer in the mice, Witte and his team were then able to observe specific immune cells at work as they reacted to the tumor. "The f...

Compound from marine bacteria shows potential as multiple myeloma therapy

...ple myeloma is a currently incurable cancer of the bone marrow that causes a plunge in the production of vital red and white blood cells. Although relatively rare, it is the second most common type of blood cancer and accounts for 11,000 deaths annually in the United States. Bortezomib, approved by the Fo...

Cells from amniotic fluid used to tissue-engineer a new trachea

...auza has also used cells from the ear and from the bone marrow to derive cartilage cells, amniotic fluid is much more readily available. Millions of pregnant women elect to have amniotic fluid drawn to test for chromosome defects, the procedure known as amniocentesis. And when a prenatal ultrasound exam r...

Clinical trial to test stem cell approach for children with brain injury

...rain injury with stem cells derived from their own bone marrow starting early next year at The University ...e child in the study. If permission is granted, bone marrow will be extracted from the child's hip and then processed to derive two types of progenitor s...

Viagra's hidden help for wildlife

...or example, there is still strong demand for tiger bone among TCM apothecaries who use it in the treatment of pain relief, despite the widespread availability of aspirin. "But the failure to achieve an erection isn't comparable to having a headache or the many other ailments for which consumers still pre...

Pillows - a hot bed of fungal spores

...leading infectious cause of death in leukaemia and bone marrow transplant patients. Fungi also exacerbate asthma in adults. The researchers dissected both feather and synthetic samples and identified several thousand spores of fungus per gram of used pillow - more than a million spores per pillow. Fung...

Prostate cancer uses Wnt signaling proteins to promote growth of bone tumors

...tate cancer cells often metastasize, or spread, to bone where they form fracture-prone tumors that are ext...ating prostate cancer cells set up housekeeping in bone tissue and produce the dense bony lesions characteristic of prostate cancer. Now, new research by s...

A little telomerase isn't enough

... mice and people with the condition, stem cells in bone marrow that replenish the blood cells and those in...atment for people with dyskeratosis congenita is a bone marrow transplant from an unaffected family member. But the team's new findings in mice suggest that...

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