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Tag: "way" at biology news

St. Jude study solves mystery of mammalian ears

...motility in mammalian outer hair cells is simply a way to change the height of the cilia in the fluid to ...s concluded that somatic motility was not simply a way to make cilia do their job better; rather, there is no connection between the hair cell contractions...

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...ions. This same phenomenon could provide a general way that viruses use to infect cells, so it will be exciting to look at other viral systems with our experimental method,” she said. Many different viruses could enter cells by efficiently lowering the energy required to penetrate a cell’s outer membran...

One species, many genomes

Faster growth, darker leaves, a different way of branching - wild varieties of the plant Arabidopsis thaliana are often substantially different from the laboratory strain of this small mustard plant, a favorite of many plant biologists. Which detailed differences distinguish the genomes of strai...

Common cancer gene sends death order to tiny killer

Scientists at Johns Hopkins have discovered one way the p53 gene does what it's known for—stopping the colon cancer cells. Their report will be published in the June 8 issue of Molecular Cell. The research team identified a tiny bit of genetic code, a microRNA called miR-34a that participates in p53...

Agent slows aging in mice

...is advised to bulk up on creosote bush leaves as a way to defy old age. If NDGA pushes the aging envelope in the final results of this study, other labs will likely try to repeat the results in animals. Much more research is needed before any possible human anti-aging drug could emerge, Miller says. ...

Blood test may help signal tumor's remission, return in throat cancer patients

...as a first line of treatment. However, there is no way to predict which patients will respond well to this treatment or whether a tumor will return later. Clinical exams, X-rays, and magnetic resonance imaging (MRI) are currently used to monitor a patient’s progress, but observation by these methods has ...

Modeling the restless brain

..." Sporns said, "then individual differences in the way people think and what they think about could be rooted in differences in the way their brains are connected." ...

Simulations unravel outer membrane transport mechanism

... of the barrel or changes its conformation to make way for the large molecules. Previous studies had been inconclusive, however. Molecular biologists have difficulty studying systems that involve complex interactions between proteins, particularly when one domain moves into and out of a structure like...

How sneaky HIV escapes cells

...that interfere with exosome formation might be one way to inhibit HIV infections. “Viruses like HIV use pathways we barely recognize, much less understand,” Gould says. “Our paper highlights the importance of studying their basic biochemistry and cell biology, which can yield a better understanding of...

Research team identifies new Alzheimer's gene

...to achieve the same result. Moreover, it paves the way for even more advanced studies using larger sample populations, more powerful array chips that can distinguish more genetic markers, and more sophisticated methods of analyzing the data....

How to lose weight and not go hungry: HU researcher develops drug that mimics feeling of 'fullness'

...blood stream. Once in the blood, it could make its way to the MC4R receptor and “close the circuit” to send out the “full” signal. The result is that a person seriously wishing to overcome obesity could take this compound orally in order to curb his appetite, thus leading to natural weight loss. In e...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...ence − which combines nucleotide base pairs in a way that is found in no other life form − into one that could be "read" by yeast. The yeast are then able to produce the PfMDR1 protein, in its proper sequence, from this synthetic gene. They previously used this same technique to create and express a ...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...ble glass-like structures. Phase I trials under way at the Medical College of Georgia are comparing th...ption: ovarian tissue or pure eggs. Also, a better way to preserve eggs – which last about 24 hours outside the body without preservation – would reduce th...

Columbine flowers develop long nectar spurs in response to pollinators

...long tubes leading to plants' nectar--happens in a way that allows flowers to match the tongue lengths of the pollinators that drink their nectar, biologists have found. The researchers were Justen Whittall of the University of California at Davis and Scott Hodges of the University of California at Sant...

Newly found sensing system enables certain bacteria to resist human immune defenses

... what we have demonstrated—an efficient and unique way that gram-positive bacteria control resistance—and we are continuing our investigation of the aps sensing system being used for drug development.” ...

Brightening prospects of using fluorescent nanotubes in medical applications

...step necessary for many biomedical uses: finding a way to attach molecules to the surface of the nanotube...approach has one drawback: He doesn’t have an easy way to identify the locations where the clusters attach. Nanotubes should work as well as gold clusters ...

Breakthrough developments in rheumatoid arthritis reported

...months or years prior to the illness, suggesting a way to identify the disease before it starts and perha...s and testing CCP levels to see whether there is a way to predict, based on these measurements, who will go on to develop rheumatoid arthritis. Ultima...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...e eye is doing normally and about a new and common way in which it can go wrong. Given some exciting recent developments on testing possible cures for inherited blindness, its becoming very important for everybody to know exactly which mutation they've got, because the treatments being tested are specifi...

Researchers shed light on shrinking of chromosomes

...se even further. This makes sense, because in this way they are shortest when the physical division of one cell body into two takes place. Like this, no long chromosome arms extend over the plane of division, because that could expose the DNA to serious mechanical damage.” The extreme condensation of ...

U-M researchers discover gene switched off in cancer can be turned on

...et. We can detect it, but we need to find a better way to turn it back on. No drugs are designed to deal with a gene that’s turned off. But it’s a straightforward extension of current therapies that target genes that are turned on,” says lead study author David Reisman, M.D., Ph.D., assistant professor o...

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