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Tag: "affecting" at biology news

Study ties 'new' cell-death mechanism to developmental and degenerative brain disorders

...which emerge in childhood and others in adulthood, affecting one in 17,000 people. Ataxias affect coordination and many basic functions such as walking and speaking. They also may lead to eye movement abnormalities, cognitive decline, epilepsy and other significant deficits. Twenty-seven specific locations on...

Cellular scale drug delivery from the inside out

...s on and off, but you don't really know if you are affecting other parts and processes of the cell as well," Lin said. "You may be able to get a plant cell to produce a certain desired product, but the yield may drop significantly." By using externally controlled nanospheres, Lin explains that it may be possi...

UCSD study finds anthrax toxins also harmful to fruit flies

...sked the simple question of whether anthrax toxins affecting mammals could act on the fly counterparts of proteins affected in humans, and the answer is yes," said Ethan Bier, a professor of biology at UCSD who was the senior author of the study. "What this means is that similar types of analyses might identif...

New peptide antibiotic isolated from American oyster

...thesis and storage of AOD and determine mechanisms affecting its regulation." ...

Study finds that nutritionally enhanced rice reduces iron deficiency

...ebilitating and intractable public health problems affecting nearly 2 billion people. The lead authors of the ... but iron deficiency is also widespread in Africa, affecting more than 80 percent of young children in some countries. Nutritional experts correctly advise tha...

Biologists discover new pathway into plant cells

...he process of proteins getting inside of cells and affecting their behavior is common in animal cells, the scientists said. For instance, that's how the AIDS virus causes its damage. But the same process had never before been shown to exist in plant cells, which have been evolving separately from animals for h...

Mouse study: New muscle-building agent beats all previous ones

...caution. "We don't know what else the new agent is affecting or whether those effects will turn out to be entirely beneficial," says Lee. Lee says they also are conducting experiments with the mice now to see whether the effect lasts after injections cease and whether it helps a mouse model of muscular dystr...

Harnessing genomic research

...ved has the potential to kill tumour cells without affecting normal cells, so avoiding the side effects of hair-loss and nausea that often result from existing therapies. The genes and biological pathway under investigation are involved in hereditary breast and ovarian cancers and have also been linked to othe...

Noise And Delays Explain Why Some Genes Oscillate In Activity

... blank between the first and second images without affecting the monkeys' performance. They found that if the monkeys were tired, they couldn't remember the first image for long as they could when they were alert. But with the drug, the sleep-deprived monkeys did at least as well as alert monkeys. The drug, l...

Clocking in Pillow Time without the Pillow

... blank between the first and second images without affecting the monkeys' performance. They found that if the monkeys were tired, they couldn't remember the first image for long as they could when they were alert. But with the drug, the sleep-deprived monkeys did at least as well as alert monkeys. The drug, l...

Stroke treatment a step closer after trial

...iggest killer and the biggest cause of disability, affecting 100,000 people each year. It accounts for 6.5% of total NHS and social services expenditure and there are currently no treatments available. Stroke occurs when vessels supplying blood to the brain become blocked and the brain is starved of oxygen. A...

Oil spills and climate change double the mortality rate of British seabirds

...nnual measure of a large scale climatic phenomenon affecting winds, temperature and rainfall) for the past 30 years, has had a negative effect on the guillemot population of Skomer Island. Professor Tim Birkhead of the University of Sheffield said: "Prior to our investigation of the guillemot population of S...

A little telomerase isn't enough

...ind out exactly how critically short telomeres are affecting their survival. ...

Shade trees getting 'scorched' by plant disease

Bacterial leaf scorch is severely affecting urban shade trees grown not only to provide shade, but to help clear the air, reduce noise, and improve the aesthetics in many U.S. communities, say plant pathologists with The American Phytopathological Society (APS). According to Ann Brooks Goul...

Anthrax stops body from fighting back, study shows

...lows them to isolate specifically how the toxin is affecting cells, Southwick said. Low doses of the lethal toxin stopped the protein actin from building filaments to steer the neutrophils, stopping the body's immune response, the study found. "Neutrophils crawl around in the body and roll around in the bloo...

MicroRNAs have shaped the evolution of the majority of mammalian genes

...n previous research had indicated. "MicroRNAs are affecting the majority of protein-coding genes, either at a functional level or an evolutionary level," says Andrew Grimson, a post-doctoral fellow in Bartel's lab. In order to make a protein, a gene codes for a specific molecule called messenger RNA, or mRN...

Emerging staph strains found to be increasingly deadly and deceptive

...so can be much more severe and difficult to treat, affecting vital organs and leading to toxins poisoning the blood and infection overwhelming the heart. One of the most severe types of disease is necrotizing pneumonia, where bacteria destroy lung tissue. "The reason that some mild infections become severe or...

A 'dimmer switch' for genes

...hat unstructured regions of the Ets-1 protein were affecting the structured regions in the work of controlling genes. "In fact," Graves reports, "the region's unstructured nature appears to be an essential requirement." NMR showed that phosphate addition to this unstructured region caused a gradual decline in ...

New results validating Pall prion reduction filter disclosed at ISBT Congress

...educing prions, including scrapie (a prion disease affecting sheep) and mouse-adapted human vCJD. He also reviewed results of new studies that found the filter effectively reduced prions under a range of different blood processing conditions, which may vary by country and blood center. Allan Ross, President o...

Tropical Deforestation affects rainfall in the U.S. and around the globe

...hanges precipitation patterns and distributions by affecting the amount of both sensible heat and that released into the atmosphere when water vapor condenses, called latent heat," said Avissar. "Associated changes in air pressure distribution shift the typical global circulation patterns, sending storm system...

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