Tag: "proof" at biology news

AGU journal highlights - 6 January 2004

...9/2003GL017879, 2003 ------------------- 7. First proof that plants absorb atmospheric nitrogen Researchers have proven for the first time that vegetation candirectly absorb atmospheric organic nitrogen. Sparks et al. reportthat plant leaves can remove organic forms of nitrogen, which couldhave a signifi...

Americans speak out on cancer

...ty and premature deaths from cancer. "I am living proof of the value of successful cancer research without it I would not be here today," said testicular cancer survivor and champion cyclist Lance Armstrong. "Other cancer survivors deserve the same opportunity to overcome the disease and live with a grea...

Map of genes in plant root yields new tool for exploring tissue development

...y. What's more, said Benfey, "We believe this is a proof of principle that shows that similar approaches can be applied to other plant organs and other organisms." In their mapping studies, Benfey and his colleagues developed techniques to quickly separate and identify the individual cell types in the rapi...

Mustard-root map breaks new ground tracking gene expression

...sm," said Benfey. The work, he said, serves as "a proof of principle" that similar approaches can be applied to other plant organs and other organisms. It also marks the first time researchers have tracked the vast majority of an organism's genes as they are switched on and off as cells grow, continually ...

UC Riverside researchers publish paper on botulism detection system

...ne first," Parpura said. "What we've done is shown proof that the principle works." The principle, he added, works much like a fishing pole and line. A protein-coated bead at the end of a microscopic cantilever comes in contact with the neurotoxin, which cuts through the protein strands connecting the two,...

UIC researchers create tissue-engineered joint from stem cells

...p and knee replacements. "Our findings represent a proof of concept for further development of tissue-engineered condyles," Mao said. The first in a series of reports on the tissue-engineered articular condyle will be published as a rapid communication in the December issue of the Journal of Dental Researc...

Biofilm antibiotic resistance may be susceptible to genetic approach

...thought to develop in patients' lungs. "This is a proof of concept that there may be a possibility of identifying small molecules to attack biofilm resistance, thereby rendering these microbial communities more susceptible to treatment with conventional antibiotic therapy," said Dr. O'Toole....

Technique may identify novel disease genes at a faster clip

...es in the knockout mice, said Darnell, constituted proof that Nova is the central regulator of splicing in a whole set of RNA molecules found in the brain. "We're finding the Nova is an extremely important factor--maybe the factor--that is responsible for neuronal splicing for some targets," he said. The...

Researchers describe new technique for cataloging RNA targets in rare brain disease

...ulates RNA splicing in neurons was satisfying as a proof of principle and raised interesting questions about Nova's function in disease," says Darnell. "More generally for Nova, and for all RNA-binding proteins that are important in biology and human disease, what we really want to know is what is the full...

Natural selection in a nutshell

...fornia. "But no one has been able to actually show proof of this in the wild before this. We now know which specific traits are contributing to evolution." The understanding of how characteristics evolve or change is often limited because measuring inheritance in the wild is difficult. Boutin was able to a...

Extraterrestrial enigma: missing amino acids in meteorites

...ailable in Earth's early years. The experiment was proof that amino acids, out of which all life's proteins are made, can be created by strictly physical-chemical processes, without the help of living organisms. Perhaps the most famous carbonaceous chondrite was the Murchison meteorite, which fragmented an...

Experimental hantavirus vaccine elicits strong antibody response in primates

...ed 5 days after exposure. These findings provide proof of concept in nonhuman primates for a vaccine against HPS, as well as for post exposure prophylactic treatment of HPS and a related disease known as hemorrhagic fever with renal syndrome (HFRS). In an article published in last month's Journal of Viro...

Cancer prevention pioneer receives AACR/Cancer Research and Prevention Foundation Award

...er Center were among the early pioneers who showed proof of principle that a drug can be used to prevent cancer before it has a chance to begin. Their studies demonstrated that high doses of retinoids can suppress or reverse pre-cancerous lesions in the mouth as well as thwart the development of new tumors...

Researchers urge caution over using ginseng in early pregnancy

... counter. Manufacturers are not required to submit proof of safety and efficacy before marketing. He said that their study showed that the reduction in morphological score was dependent on the dose. It was therefore possible that lower concentrations of ginsenoside Rb1 might have caused less severe abnorm...

Moving the target for osteoporosis treatment

...s the mouse will have very thin bones and serve as proof of the new principal. Current osteoporosis treatments, such as Fosamax, kill off osteoclasts in an effort to restore balance in patients who are losing more bone than they make; older treatments, such as hormone replacement therapy, are falling int...

Discovery may be first plant cell surface molecule that halts cell proliferation

...chool of Medicine. "And this study is the ultimate proof because they are intimately linked structurally," he added. "This really sets the paradigm clearly in the minds of all of us studying this signaling. For a long time there have been hints of receptor-specific recruitment of these RGS proteins. But pl...

New research finds garlic kills slugs

...t, Food and Rural Affairs. It provides scientific proof of garlic's pest controlling properties, and should help businesses developing new treatment products for widespread use. The scientists, Ingo Schder and Gordon Port from Newcastle University's School of Biology, suspect garlic may have an adverse af...

Researchers one step closer to Holy Grail of neurobiology

...says, is to have physical responses, which are the proof of arousal. "In addition to receiving sensory stimuli, we have the animal moving on a running wheel," Pfaff says. "That's also part of the operational definition. So what we're trying to do is turn the most fundamental behavioral concept into a set ...

Scientists demonstrate new method for discovering cancer gene function

...o finding, and I think that the paper represents a proof of concept of the approach." The research was carried out in the laboratory of Mark E. Ewen, PhD, senior author of the paper. Cancer is now viewed as a set of diseases fundamentally caused by mutations in genes that normally regulate all aspects of...

Creation of new neurons critical to antidepressant action in mice

...cts of antidepressants, Hen cautions that ultimate proof may require a "cleaner" method of suppressing this process, such as transgenic techniques that will more precisely target toxins at the hippocampal circuits involved. "Our results suggest that strategies aimed at stimulating hippocampal neurogenesis...

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