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Tag: "single" at biology news

Insomnia drug can improve brain function

...r nourishment, although she was able to understand single words. Two years after the suicide attempt, she wa...re to allow spontaneous speech. They conclude that single patient trials can be a logical approach to identifying potentially beneficial drugs, especially in ...

Iowa State University botanists identify new species of North American bamboo

...ed as to whether there was really more than just a single species. In 2003, with funding from the National Geographic Society, Clark and Triplett set off for the Southeast to find the switch cane and river cane in their native habitats. "Once we actually saw the plants in the field, we knew quickly that...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...specific, meaning that they may work in treating a single individual but will be ineffective in treating a large percentage of patients," Herlyn says. Herlyn notes that the new antigen-cloning technique developed for this study is a major advance over the cumbersome method previously required to accompli...

Researchers discover gene crucial for nerve cell insulation

...itutes of Health have discovered how a defect in a single master gene disrupts the process by which several ...resolved a long-standing mystery surrounding why a single mutant copy of the EGR2 gene disrupts the functioning of the normal EGR2 gene, leading to a disorder...

Wheat can fatally starve insect predators

...nt plants, the researchers are beginning work on a single microchip that would be an array of genes from both the Hessian fly and wheat. This will allow the scientists to study insect-plant interactions. Knowing the timing and location of those interactions would enable the scientists to use the promoter ta...

Scientists find new genes for Crohn's disease

...Crohn's, the researchers scanned more than 300,000 single nucleotide polymorphisms, or SNPs, in the genomes—all of 22,000 or so genes—in people with Crohn's disease and in healthy controls. SNPs are subtle variations in the genetic code found in all genes. Some variations can be harmful, while others may be...

University of Alberta researchers unravel intricate animal patterns

...ta scientists shows that one movement started by a single individual ripples through the entire group—a find... that the entire group can respond indirectly to a single individual, as each individual's movement response is a signal to its next neighbour," said Lewis, t...

Darwin's famous finches and Venter's marine microbes

...the breadth of the ocean survey for the depth of a single protein domain. They zoomed in on kinases, extremely well studied enzymes, which control every aspect of eukaryotic cell biology and are important cancer drug targets. They control the activity of proteins and small molecules by attaching tiny phosph...

Ebola outbreaks killing thousands of gorillas and chimpanzees

...ent gorilla groups fed in the same fruit tree on a single day. Thus, infective body fluids deposited by one group might easily be encountered by a subsequent group. Chimpanzees and gorillas also fed simultaneously in the same fruit tree at least once every seven days. The study also provided the first e...

Protein overexpression at heart of heart failure

...-subunit expression for the “heart failure type?of single L-VDCC characteristics was proven when the authors...ta 2a protein expression increased the activity of single ventricular L-VDCC, rendering these channels phenotypically identical to human and mouse heart failu...

Scripps research study reveals structural dynamics of single prion molecules

...to investigate these processes. "By focusing on single unfolded prions, we were able to define the dynami...process are critically important, Deniz noted: "No single native unfolded protein is capable of initiating the amyloid cascade because of this constant shape-...

Does God answer prayer? ASU research says 'yes'

...is a compilation of available studies and is not a single work with a single conclusion. His “Systematic Review?takes into account the findings of 17 studies that used interces...

New study may show how to forestall a fatal, virus-caused immune-system meltdown

...lts often produced by studies that focus on only a single biochemical pathway. To better understand their results, the investigators plugged their data into the Ingenuity Systems “pathways analysis?program, which draws on a large-scale computer database of biochemical interactions that have been describ...

Exploring the molecular origin of blood clot flexibility

...ee how they relate to the mechanical properties of single fibers and a whole clot. This knowledge may enable researchers to make predictions about the function of differently formed fibrin clots in the circulating blood or in a wound. For example, when clots are not stiff enough, problems with bleeding aris...

Researchers create artificial enzyme that mimics the body's internal engine

... biochemists that study the enzyme typically study single turnover," Collman said. "They let the enzyme have...gen molecule and watch what happens." He said that single turnover is like taking a single photograph of an event, while steady turnover is like shooting a mo...

DNA ends: Common tool, different job

... cell repairs or replicates its DNA, the resulting single strand is wrapped up by a dedicated protein complex. In eukaryotes or organisms whose cells have a nucleus, this job is handled by a tripartite complex called replication protein A (RPA). Researchers at the Salk Institute for Biological Studies have ...

Genes and biomarkers that allow doctors to choose the right therapy for the right patient

... cell lines. Each of these cell lines represents a single variant among the different genomic abnormalities found among breast cancers. They measured molecular profiles of each cell line and used these to identify subsets of cell lines that represent the subtypes observed in analyses of primary tumors. ...

Carnegie Mellon University research shows how sensory-deprived brain compensates

...of the body dramatically inhibits the ability of a single whisker to remodel the brain," said Barth. "This finding suggests that we could boost the brain's plasticity if we 'turn off' sensory input from the opposite side of the body." Hypothetically, in a clinical setting, doctors could temporarily r...

Cancer tip -- Nanoparticles can damage DNA, increase cancer risk

...phoresis assay (Comet assay) to quantify breaks in single and double stranded DNA. The team chose these particular nanoparticle types because they are commonly used commercially ?in electronics, textiles and sporting goods ?and easy to work with in the laboratory setting. "We observed both dose-depend...

Xylitol reduces risk of cavities

...d in plaque. In another study it was shown that a single higher intake of xylitol for a limited time reduced the degree of acidity in plaque between teeth. In a field study involving 128 children aged 7?2, the subjects were asked to chew gum three times a day, with a total daily dose of 6.0 grams of xyl...

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