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Tag: "proves" at biology news

Lost in the labyrinth

... something so far not thought to occur. The study proves that beta-catenin plays a central role in determining whether blood cells form or not. On the other hand, an overactive Wingless pathway doesn't seem to damage cells that already exist. Thus beta-catenin seems to be a decision-maker, a selector of ho...

Bacteria in small sea life yield new way to make potential cancer drugs

...aries for testing against human diseases. "This proves the concept works," Schmidt said. "We can extract bacteria from animals, take DNA from the bacteria, and produce compounds." Now that they've shown compounds can be synthesized from DNA, the researchers want to figure out how to produce greater qu...

Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity

...’s both beautiful and simple, as nature invariably proves to be.? The fundamental mechanism of transcription is conserved among cellular RNA polymerases, the researchers explained. Common features include an unwound region of about 15 base pairs of the DNA with some eight residues of the RNA transcript hyb...

'Hidden-hero' microbes in soil, water may help naturally clean toxic sites

...lly deadly radioactive metal. If bioremediation proves successful on the uranium, technetium, nitrate and other potentially lethal leftovers at the Oak Ridge site, the process should work to mitigate contamination at more than 7,000 other sites nationwide -- and do so more economically and effectively th...

No sex for 40 million years? No problem

... process when a new rotifer is born. The new study proves that these differences are not random and are the result of so-called 'divergent selection', a process well known to cause the origin of species in sexual organisms. Dr Barraclough adds: "These really are amazing creatures, whose very existence c...

3-D ultrasound identifies women at risk for impending preterm birth

...irth within five days from the time of examination proves that 3-dimensional ultrasound evaluation of the fetal adrenal gland has the desired test characteristics to define a population at risk," they said. The current study creates the basis for further prospective studies to confirm that 3-dimensional ...

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

...d Fiji," he says. "If this first attempt at mining proves successful, it’s like letting the genie out of the bottle."...

Common treatment for methamphetamine overdose may damage brain cells

...lation of cells by the amino acid glutamate, which proves toxic to cells producing the neurotransmitter gamma-aminobutyric acid (GABA). Their results are published in the May 30 issue of The Journal of Neuroscience . "This work in laboratory animals raises immediate concerns that a standard treatment fo...

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

...en up by such cells, the presence of the C-peptide proves that at least some of the insulin was produced, or synthesized, by the engineered cells....

Brightening prospects of using fluorescent nanotubes in medical applications

...pmost layer has a purple color and, when analyzed, proves to contain a surprisingly uniform population of the brightest nanotubes. The researchers had expected this approach to boost the quantum efficiency by five to ten times. The fact that the improvement was considerably larger – 20 to 100 times – came...

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