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Tag: "damage" at biology news

Chemical Engineer Kao Explores Antibiotic Synthesis With DNA Chips

...in. Drug companies use chemicals and radiation to damage DNA and induce mutations. But it's not easy to detect these single base-pair mutations in the so-called industrial mutant strains. Kao's group, for example, detected the presence of an unidentified regulator gene altering the timing of erythromycin p...

Natural Killers Could Lead to New Hepatitis Treatments

...ssels of the liver for invaders or signs of tissue damage and demonstrate a dogged behavior not seen before ...re is detection of antigen reflecting some kind of damage or local infection, the cell would stop in the vicinity of that signal and provide cytokine signals ...

Columbia study shows widely used artery clearing device does not help patients during heart attack

...e patient outcomes, but it's possible that so much damage happens during a heart attack that distal protecti...ents ?a portion of the EKG that can indicate heart damage when it is elevated. The study showed that the percentage of patients who had normalization of the S...

Scientists use manufacturing methods to reconstruct mastodon

...New York. More recently, Fisher's studies of bone damage on fossil remains of mature mastodon males—aided by 3-D computer graphics—showed that some died of wounds inflicted by the tusks of other males during combat. The Buesching mastodon, in fact, appears to have been killed in a fight with another male m...

Disabling gene defuses rheumatoid arthritis in mice

...le pain. In severe cases, rheumatoid arthritis can damage cartilage, tendons, ligaments and bone, leading to joint deformity and instability. Rheumatoid arthritis has long been recognized as a condition that involves defensive cells from the body's immune system mistakenly attacking healthy joint tissues. ...

U. Iowa researchers improve Huntington's disease symptoms in mice

...o certain brain cells, and the subsequent neuronal damage leads to the movement disorders, psychiatric distu...rmal movement, and the characteristic neurological damage also was significantly improved in comparison to untreated mice. Detailed examination of the protei...

Researchers pioneer new gene therapy technique using natural repair process

...ing the strength of a natural process that repairs damage to the human genome, a researcher from UT Southwestern Medical Center has helped establish a method of gene therapy that can accurately and permanently correct mutations in disease-causing genes. The findings are available online in Nature. By arti...

Fungus Effective Against Winged Termites

... termite causes hundreds of millions of dollars in damage and control costs each year. Emerging in late April through June, the winged adults fly briefly before they drop to the ground, shed their wings and find a mate with which to start a new colony that may grow to hundreds of thousands of wood-destroyin...

Scientists find viruses can't stick to sea bugs in the dark

...d infect cyanobacteria. These phages can seriously damage the health of the cyanobacteria, and also the sea. Ying Jia, from the University of Warwick, is presenting new research today (Monday, 04 April 2005) at the Society for General Microbiology's 156th Meeting in Scotland, which shows that these cyanoph...

Function of new cancer genes discovered

...protein, ubiquitin, when the cell detects that DNA damage has occurred. Nijman identified a third protein, U.... USP1 therefore plays a role in the repair of DNA damage and possibly in the development of cancer. ...

Alien woodwasp, threat to US pine trees, found in N.Y.

...s widespread because, Hoebeke says, "The potential damage from this exotic woodwasp could be monumental." Since 1985 U.S. Department of Agriculture Animal and Plant Health Inspection Service inspectors have intercepted seven male S. noctilio at various borders; all had come with tile and marble imports fro...

Tsunami-damaged coral reefs should be left to recover naturally, say scientists

...e tsunami that happened in December last year. The damage was mainly caused by the backwash ?waves returning to the sea that sucked back debris from the shore such as trees, cars, sediment and parts of buildings, which broke and overturned corals. The group recommend that, in most cases, simply removing th...

New miniaturised chip dramatically reduces time taken for DNA analysis

... the toxicity of different drugs to establish what damage they may cause to the DNA molecule of disease-causing microorganisms and of cells in patients. "The next step is to mass-produce the sensors", states Salvador Alegret, the director of research. "Mass production will allow costs to be reduced and the...

Chronic Sinus Infection Thought To Be Tissue Issue, Mayo Clinic Scientists Show It's Snot

...nus infection patients far exceeded that needed to damage the nasal and sinus membranes and make them more susceptible to infections such as chronic sinus infection. To conduct this investigation, Dr. Ponikau and fellow researchers collected specimens from 22 consecutive Mayo Clinic chronic sinus infection...

Unique library of plant genes germinates, takes root at UNC

...ill lead to plants that yield more food and resist damage from diseases and insects more successfully, he said. They also can lead to better and cheaper medicines and plant products like cotton, paper and rubber. "A persistent challenge of genomics is how to capture, analyze and distribute the massive amou...

Key to elephant conservation is 'in the sauce'

...rmers an economically feasible means of minimizing damage to their investments," said Loki Osborn, project director for the EPDT. "They can be grown as buffer crops to prevent crop-raiding and then be harvested and sold on the world market through the trust." Osborn originated the idea of Elephant Pepper i...

Cancer related gene p53 not regulated as indicated by previous tissue culture research

...r proteins that will halt cell division if the DNA damage can be repaired. Or, if the damage is too severe for the breaks to be repaired, critical backup protection, also governed by the p53 tu...

Stem cell treatment improves mobility after spinal cord injury

...ell-derived therapies for treatment of spinal cord damage in humans during the very early stages of the inju...ngage in human clinical tests." Acute spinal cord damage occurs during the first few weeks of the injury. In turn, the chronic period begins after a few mont...

Enzyme's newly discovered role may make it target for arthritis treatment

...n of immune cells can lead to tissue and cartilage damage in joints, causing pain and limiting mobility. "Cathepsin G affects a very early step in this kind of immune response, so inhibiting it has attractive potential for developers of therapeutics," says senior author Christine T.N. Pham, M.D., assistant...

Study finds adult stem cells can replicate

...n of immune cells can lead to tissue and cartilage damage in joints, causing pain and limiting mobility. "Cathepsin G affects a very early step in this kind of immune response, so inhibiting it has attractive potential for developers of therapeutics," says senior author Christine T.N. Pham, M.D., assistant...

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