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Tag: "others" at biology news

Stem cell training program to make its Stanford debut

...me are potent cancer-fighting anti-oxidants, while others have antibiotic or anti-fungal properties. Many of these molecules only become active once they have had a prenyl group added. The researchers tested whether their new enzyme could modify a wide range of small aromatic molecules, ranging from plant ...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...me appear more vulnerable to fire than others, and others that appear to have died soon bounce back by resprouting from their roots. In these repeated fires, scientists will learn just how resilient some of these species are. It is quite clear, however, that the composition of the forest will be altered fol...

For first time, brain cells generated in a dish

...s in Parkinson's disease, Huntington's disease and others of that nature, the ability to regenerate the needed cell type and placing it in the correct spot would have major impact," said Dr. Eric Holland, a neurosurgeon at Memorial Sloan-Kettering Cancer Center in New York who specializes in the treatment o...

Hybrid grass may prove to be valuable fuel source

...gate how Miscanthus is so productive, Dohleman and others take measurements of photosynthesis throughout the day. He measures the intensity of the sun and then places a leaf in a chamber, allowing him to measure the rate of photosynthesis depending upon ambient sunlight. Preliminary results show that Miscan...

Tagging pathogens with synthetic DNA 'barcodes'

... DNA, each of which is complementary to one of the others along half its length, the researchers can create a Y-shaped structure. Combining several of these structures creates a web with many branching ends. "While DNA is flexible, the short strands used here are quite rigid," Luo said. "A long piece of spa...

Structures of marine toxins provide insight into their effectiveness as cancer drugs

...undamental understanding which will be taken up by others to simplify chemical synthesis of what could potentially be powerful cancer treatments." The toxins, which are produced naturally by organisms that exist symbiotically on deep-sea sponges, work by disrupting the activity of actin, an abundant protei...

Discovery of T-cell 'traffic control' boosts new drug promise

...gs that affect one type of S1P receptor affect all others as well, and some of these control heart rate and ...expressed receptors, the Goetzl and Rosen labs and others determined that T cells have on their surfaces what are known as G protein-coupled receptors, which ...

Duke Experiments Boost Radiation's Cancer-Killing Effects

...lts. Some of HIF-1's effects promote cancer, while others inhibit cancer, so it is critical to block the protein at a juncture where it promotes cancer growth. The environment inside the tumor ?and the timing of a given treatment -- can make all the difference in a tumor's response to that therapy, said Mo...

IBM Transforms the Art of Scientific Expeditions

...lts. Some of HIF-1's effects promote cancer, while others inhibit cancer, so it is critical to block the protein at a juncture where it promotes cancer growth. The environment inside the tumor ?and the timing of a given treatment -- can make all the difference in a tumor's response to that therapy, said Mo...

Researchers predict infinite genomes

...h as GBS, have infinite pan-genomes, for instance, others are more limited. Comparing eight independent isolates of Bacillus anthracis (the bacterium that causes anthrax), for instance, Tettelin and colleagues found that just four genomes were sufficient to characterize its pan-genome. That raises interes...

Bleach found to neutralize mold allergens

... product containing both bleach and detergent, and others only with distilled water as a control. They then compared the viability and the allergenicity of the treated and untreated mold. The researchers found that the use of the dilute bleach solution killed the A. fumigatus spores. When viewed using a...

Unweaving amyloid fibers to solve prion puzzles

... some prions can't cross the species barrier while others can--as they have with mad cows and humans.," says...sters can't make the species jump into mice, while others do, and vice versa." While the results of this research are clearly of interest to scientists inves...

Helping in a selfish world

...ive 8 concert broadcasts, some just for the music, others to support the altruistic cause spearheaded by for...at makes some of us look out for each other, while others look out for themselves? According to evolutionary theory, natural selection has designed individua...

'Underground' tunnels discovered as means for communication between immune system cells

...he same reaction. But why some cells responded and others did not made Drs. Salter and Watkins wonder if there was some sort of physical structure connecting only those cells that discharged. A literature search turned up a handful of papers describing tunneling nanotubules, and further imaging using the hi...

From a Few Wild Ancestors, a Citrus Cornucopia

...own, but probable, sexual origin were studied. The others were either known to be crosses from breeding prog...ccessful. But breeding for certain traits can mean others are inadvertently lost. “Selective breeding has led to advancement of certain ‘elite?germplasm line...

Mosquito study shows new, faster way West Nile can spread

...infected mosquitoes that initially feed on them to others that feed on them afterwards, could significantly accelerate the spread of the disease," Higgs said. "Instead of only birds infecting mosquitoes, all sorts of animals may be involved, and transmission could be happening much faster because you don't ...

Computers close in on protein structure prediction

...ward the watery world of the protein surface while others take cover inside the protein. The computer also a...ino acids; some want to be close to each other and others like their distance. In stage two, Rosetta replaces the fuzzy picture of the side chains with detai...

Researchers report breakthrough against world’s deadliest viruses

..." said Dr. Feldmann, who (along with Dr. Jones and others from PHAC) has been providing on-site rapid diagnostic support to the current Marburg outbreak in Angola. "It'll be some time before we can use these vaccines in the field, but it's satisfying to know that we're getting closer." According to Dr. Gei...

High carbon dioxide levels spur Southern pines to grow more needles

...olume information for her study came after she and others weighed basketfuls of needles that had fallen into... about foliage longevity," she explained. She and others also measured and counted growing needles and branches by ascending climbable towers at the FACE sit...

Errors in the measurement of global warming corrected

...an Time. Some measurements were taken in daylight, others in darkness. "Even though models predict a close link between atmospheric and surface temperatures, there has been a large difference in the actual measurements," said Steven C. Sherwood, associate professor of geology and geophysics at Yale, and le...

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