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Tag: "bone" at biology news

Enzyme delivered in smaller package protects cells from radiation damage

...with blood and lymphatic cancers to wipe out their bone marrow cells prior to subsequent transplantation of hematopoietic stem cells, bone marrow stem cells or peripheral blood progenitor stem cells. However, there is increasing concern th...

New bacterium discovered -- related to cause of trench fever

...edical Center. “The bacteria were eating away a bone in the arm of an AIDS patient – for months,” Koehler recalls. “They can cause extremely painful lesions and tumors of blood vessels on the skin of immunocompromised patients. But when I saw this patient, this type of infection had never been seen at...

Research shows cord blood comparable to matched bone marrow

...y offer blood cancer patients better outcomes than bone marrow transplants, according to an analysis of ou... is the first study that directly compares matched bone marrow, which is currently considered the preferred graft, with matched and mismatched umbilical cor...

CT scan reveals ancient long-necked gliding reptile

... Penn State's Center for Quantitative Imaging, the bone structure and behavior of these small creatures are now known. The new gliding reptile is named Mecistrotrachelos apeoros meaning "soaring, long-necked" and was found at the Solite Quarry that straddles the Virginia-North Carolina border. The res...

Gene responsible for common hearing loss identified for first time

...tcome is a progressive hearing loss as the growing bone in the middle ear interrupts the sound waves passi...disease manifests itself by the abnormal growth of bone in the middle ear, it may have a large potential for therapy”, she said. Improved understanding may ...

Mutating the entire genome

...y tested the method by mutating a gene involved in bone formation, resulting in short, malformed tail and ... a jumping gene to mutate a mouse gene involved in bone formation, resulting in mutant mice with abnormally short limbs and tail (see photo with this news r...

Ants show us how to make super-highways

...r vehicle bounced across a pothole – jarring every bone in their body – will identify with this story. When it comes to rapid road repairs, the ants have their own do-it-yourself highways agency." "When the traffic has passed, the down-trodden ants climb out of the potholes and follow their nest mates...

Cancer patients monitor fatigue in real time

...fatigue directly or indirectly by spreading to the bone marrow, causing anemia and by forming toxic substances in the body that interfere with normal cell functions. "People who are having problems breathing -- another symptom of some cancers -- may also experience fatigue." According to Hacker, thi...

Molecule that destroys bone also protects it, new research shows

...immune system component that is a primary cause of bone destruction and inflammation in autoimmune diseases such as rheumatoid arthritis actually protects bone in the oral cavity from infectious pathogens that play a major role in periodontal disease in humans...

DNA-damage test could aid drug development

...ks for DNA damage in red blood cells formed in the bone marrow of mice. The precursors to red blood cells ...eds or thousands of tests to be performed from the bone marrow of a single mouse, and potentially from human bone marrow. Joe Shuga, the graduate studen...

Fused nasal bones helped tyrannosaurids dismember prey

...rcher whose finding demonstrates how a fused nasal bone helped turn the animal into a "zoological superweapon." "Fused, arch-like nasal bones are a unique feature of tyrannosaurids," said Dr. Eric Snively, a post doctoral research fellow at the University of Alberta. "This adaptation, for instance, was ...

Intelligent materials to regenerate bone tissue

...orders in or serious defects of some part of their bone structure. Operations involving grafts or implants...hers, is working on the regeneration and repair of bone tissue. Seven other bodies, leaders in innovation within this specialism, are also taking part in th...

Leukemia drug turns mini-molecules up, cancer genes down

...hey crowd out healthy white cells in the blood and bone marrow. "Our findings suggest that these three miRNAs help re-program the malignant cells to a more normal state," Garzon says, "and that they are also important for normal differentiation." In this study, the researchers used leukemia cells ...

Investigating the measles virus as a tool to kill multiple myeloma

...es virus against multiple myeloma, a cancer of the bone marrow that currently has no cure. This is the third of a series of molecular medicine studies in patients testing the potential of measles to kill cancer. “This is the beginning of a long but exciting process,?says Angela Dispenzieri, M.D., hemato...

NIH researchers discover protein that appears to regulate bone mass loss, the cause of osteoporosis

...isease, which is characterized by a severe loss of bone mineral density, fragile bones and an increased ri... behind osteoporosis involves an imbalance between bone mineral formation and loss, but the detailed biological processes that lead to this imbalance are no...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...dern hummingbird. So say scientists who've linked bone cell and genome size among living species and then...f 31 species of extinct dinosaurs and birds, whose bone cells can be measured from the fossil record. The researchers, at Harvard University and the Univ...

Type of stem cell found to reside in transplanted lungs

...ls reside in adult organs and are not derived from bone marrow, which leads to the possibility that the ce...ogenitor cell that most commonly originates in the bone marrow. In this study, lead author Vibha N. Lama, M.D., M.S., and her research team found that the M...

Scientists learn the origin of rogue B cells

...m cells called B cells. B cells are formed in the bone marrow and produce antibodies. Antibodies are generated from the cutting and splicing of immunoglobulin genes early in B-cell development, and have the potential to develop strong and highly specific affinity for different pathogens. When an infectio...

Remote sheep population resists genetic drift

...Island mouflon couple using some samples of teeth, bone and fur that had been preserved from the Vincennes Zoo since in the 1950s. DNA samples from subsequent generations were taken from the mouflon that had been kept as hunted "trophies" in the 1960s, and then scientists arrived in the '70s and began col...

A genetic 'gang of 4' drives spread of breast cancer

...east cancer metastasis to other sites, such as the bone and brain. Finally, they will explore whether the LMS genes play a corresponding role in metastasis of other cancers -- such as sarcoma, melanoma and colon cancer -- to the lung, said Massagué....

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