Tag: "halt" at biology news

Mouse brain cells rapidly recover after Alzheimer's plaques are cleared

...e days."We thought that clearing the plaques would halt the progression of thedamage--stop the development of new swellings," says Brendza. "But whatwe saw was much more striking: in just three days, there were 20 to 25percent reductions in the number or size of the existing swellings."The nerve cells' ra...

Key molecule in plant photo-protection identified

...e days."We thought that clearing the plaques would halt the progression of thedamage--stop the development of new swellings," says Brendza. "But whatwe saw was much more striking: in just three days, there were 20 to 25percent reductions in the number or size of the existing swellings."The nerve cells' ra...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...euroscience, essentially describes one strategy to halt Parkinson's disease at its onset and another strategy to treat the devastating side effects that occur when treating the disease in its later stages. By inserting corrective genes into the brain, scientists studying small monkeys called marmosets pr...

Gene therapy for Parkinson's disease moves forward in animals

...euroscience, essentially describes one strategy to halt Parkinson's disease at its onset and another strategy to treat the devastating side effects that occur when treating the disease in its later stages. By inserting corrective genes into the brain, scientists studying small monkeys called marmosets pr...

Alaskan puzzles, monitoring provide insight about North Pacific salmon runs

... replace themselves in spite of an almost complete halt to harvesting, says Ray Hilborn, UW professor of aquatic and fishery sciences. "The Kvichak sounds a lot like Columbia River or Puget Sound stocks," he says. Still, 20 miles away from the Kvichak are similar lakes and rivers with record production....

New understanding of DNA repair may pave way to cancer treatments

...aks in DNA. A likely way in which ATF2 works is to halt the cell's cycle to allow repair of damaged DNA before such damage becomes permanent." Ronai and his colleagues are now determining how molecules like ATF2 can balance their dual roles. "High doses of radiation, as well as changes that take place in...

Biomarkers isolated from saliva successfully predict oral and breast cancer

... normal subjects. New techniques were developed to halt RNA degradation so the scientists could recover as much mRNA as possible for their samples. In all, the new techniques allowed the scientists to harvest up to 10,000 types of human mRNA from saliva, setting up a comparison test between cancer patient...

Unchecked DNA replication drives earliest steps toward cancer

...owever, or the p53 pathway is unable to completely halt the process, further mutations will occur, leading the cell to become cancerous, with the number of mutations constantly growing. So, when p53 remains intact, it is often able to prevent cancers from developing. When it suffers damage itself, cancers...

To Stop Evolution: New Way Of Fighting Antibiotic Resistance Demonstrated By Scripps Scientists

...e shut off as well. Doing so, he says, would put a halt to evolution -- an interesting prospect because th... general population. If one could design drugs to halt the enzymes that make mutations in bacteria, this could be a way of combating the evolution of antib...

Researchers find gene that may be at root of potato blight

...ht breakout in 2003 brought potato production to a halt in Papua New Guinea , one of the few countries in the world that was previously free of the disease. Agricultural problems caused by oomycetes don't stop with P. infestans. Related Phytophthora species cause root rot in soybean plants as well as sud...

Natural Killers Could Lead to New Hepatitis Treatments

...ssel walls, even upstream against blood flow. They halt only when they receive a chemical signal to unleash an immune-system assault on marauding microbes, other invaders or damaged tissue. The findings offer a new way of thinking about this important class of immune cell, which is responsible for the in...

New understanding of cell movement may yield ways to brake cancer's spread

...ellular migration can help develop treatments that halt cancer metastasis and immune disorders like arthritis and asthma. "Previous studies by us and others have identified how a migrating cell 'gets its wheels' and, mechanistically, is able to move. In this study, we have now determined how these wheels...

Scientists discover odd-ball rodent

...os to help enact an aggressive program designed to halt illegal wildlife trade where poaching has devastated animal populations. "It was for sale on a table next to some vegetables. I knew immediately it was something I had never seen before," said Dr. Timmins. Dr Mark Robinson, working with WWF Thailand...

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

...ctivate the production of other proteins that will halt cell division if the DNA damage can be repaired. ...and was stable and fully functional when needed to halt the cycle cell to repair DNA damage or to induce apoptosis. "It came as a complete surprise. We eve...

Random gene expression may drive HIV into hiding

...esign new and more effective treatments to slow or halt the progression of HIV infection. HIV normally replicates rapidly in the body's white blood cells, but, in some cells, the virus stops replicating and becomes dormant. Researchers have long puzzled over how HIV makes the "decision" to become latent ...

Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees

...to the action plan, a series of programs needed to halt declines in ape populations will cost just under $30 million. The measures include anti-poaching activities, improved monitoring and response to Ebola outbreaks, increased training, and tourism development. "As dire as the threats are to the survi...

Malaria killing a million a year

...halve or eliminate many socio-economic ills, would halt or reverse the spread by 2015, while WHO's Roll Back Malaria partnership, founded in 1998, aims to halve the burden by 2010, despite a serious lack of funds. Only $600 million was contributed to global malaria control this year, when $3.2 billion wa...

New tool reveals secrets of migrating cells

...bly those that have made a decision on their fate, halt their wanderings and make a beeline out of the cortex to the medulla, something immature T cells can't do. The scenario they've reconstructed from the video and mathematical analysis starts with immature T cells moving out of the center of the thymu...

Unexpected lock and key mechanism found for the assembly of tumor blood vessels

... in research that promises to lead to a new way to halt tumor growth by cutting off the tumor blood supply. The research team led by Judith Varner, Ph.D., Associate Professor of Medicine at UCSD and a member of the Rebecca and John Moores UCSD Cancer Center, made the surprising discovery that a receptor-...

U of MN researchers reverse memory loss in mice

...mory and improve in cognitive function if they can halt progression of the disease. The study measured the mice's spatial memory through a water maze--a pool of water with a submerged platform. The use of this maze taps into the hippocampus, an area of the brain important in Alzheimer's disease research....

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