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Tag: "system" at biology news

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...not virally based, in an effort to coax the immune system into attacking cancerous cells. Today at the 2007...and other new approaches to stimulating the immune system are injecting momentum into cancer vaccine research. Substantial impact on precancerous lesions a...

New biofuels process promises to meet all US transportation needs

...is is the first concept for creating a sustainable system that derives all of our transportation fuels from biomass," Agrawal said. Purdue has filed a patent for the concept. The approach is in the conceptual stages, and a plan for experimental research is in progress....

Gene that makes people 'early to bed and early to rise' demystified

...n stability," she said. "That's how we thought the system should work. But this paper shows that is not the case. It comes back instead to the transcription level as the most important step." FASPS is a relatively rare, inherited condition in which people are "morning larks," with early morning awakening ...

Scripps research team discovers a chemical pathway that causes mice to overeat and gain weight

...ependent on the lack of EP3 in the central nervous system and/or peripheral organs, as EP3 is expressed in both locations. The research has interesting implications for scientists' understanding of appetite regulation. PGE2 is known to stimulate the release of leptin-an important hormone secreted by whi...

Bioluminescence at the service of a novel cerebral imaging technique

...hus be expressed in all cells of the brain nervous system (both neurons and glial cells) in order to monitor the activity of the whole brain. Preliminary data are already available. For the first time, it is possible to draw up anatomical and functional maps of the brain (in this case, of the Drosophila) ...

What recognizes what in plant disease resistance?

Plants have an immune system that resists infection, yet 10% of the world's agr...colleagues show how one aspect of the plant immune system is defined by the gene-for-gene hypothesis: a plant Resistance (R) gene encodes a protein that speci...

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

... responsible for the 1918 flu pandemic ?the immune system itself actually becomes the most dangerous element...hat may head off or stop an otherwise fatal immune system meltdown. In a paper published in the February 14 issue of the Journal of Virology, highlighted ...

Scientists unveil piece of HIV protein that may be key to AIDS vaccine development

... and continuously—defeating attempts by the immune system to identify and destroy it—the virus is also swath...king, which acts to further shield HIV from immune system attack. While the earlier study provided a picture of the CD4-gp120 complex, the new finding deli...

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

...ents." Gray and his colleagues have developed a system to evaluate drug response comprised of a panel of 50 breast cancer 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 l...

Carnegie Mellon University research shows how sensory-deprived brain compensates

...pes neuronal activity. In a first, studies of this system by Carnegie Mellon scientists show just how well a mouse brain can compensate when limited to sensing the world through one whisker. Published April 4 in the Journal of Neuroscience, the results should help shape future studies of sensory deprivation...

No carrier necessary: This drug delivers itself

...loped an innovative solution in which the delivery system is the drug itself. They describe for the first time in Molecular Pharmaceutics a drug delivery system that consists of nanocrystals of a hydrophobic drug. The system involves the use of nanocrystals m...

Proteins important in Alzheimer's, Parkinson's disease travel in the slow lane

...ad not been directly visualized." Roy devised a system to simultaneously visualize the transport of two labeled slow-component-b proteins in living cultured mouse axons. This clarified unique aspects of slow-protein transport. He found that the "slow" proteins actually showed rapid bursts of movement fol...

Bats prey on nocturnally migrating songbirds

...equipped with sharp canines and an efficient radar system which remains probably largely inaudible to songbi...be a classical consequence of a bats' echolocation system which hampers fine-grained discrimination of targets (therefore a confusion between insect prey and ...

Lost dogs found more often than lost cats, study suggests

...e time of its disappearance. "The animal control system is a key component in the recovery of lost dogs, but owners have to be vigilant about calling and visiting these agencies," said Linda Lord, the lead author of both studies and an assistant professor of veterinary preventive medicine. "Some form of v...

Twin studies reveal genetic components leading to cardiac and kidney disease

...win studies uncovered links between the adrenergic system and inflammation, suggesting new strategies to probe the role and actions of this pathway in inflammation. This study was published in the February 2007 issue of the Journal of Hypertension. Genes and Vascular Disease In a study on line in ad...

Researchers first to map gene that regulates adult stem cell growth

...uch as liver disease, diabetes and central nervous system damage as a result of trauma or stroke. The researchers also are looking into the possible role the gene plays in transforming healthy stem cells into cancerous ones, such as in leukemia and lymphomas. If the gene does in fact play such a role, it ...

OHSU lab finds meth receptor that could lead to therapy

A recently discovered signaling system in the brain has just been shown to be turned on b...mp; Science University study found. The signaling system could soon become a target for therapies aiming to reverse meth’s adverse health effects as well as ...

New research shows that flu is a trigger of heart attacks

...dicated to the effect of flu on the cardiovascular system ?pointed out that the implications of the research were even more important with a looming flu pandemic when a much higher percentage of the population could be expected to catch the illness. "In the majority of influenza epidemics (except for the...

Scientists to track impact of Asian dust and pollution on clouds, weather, climate change

...e first on the sense of smell, since the olfactory system not only involves complex neural circuits but also has a behavioral component. "The perception of smell is quite complex," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and ofte...

Common algae helps illustrate mammalian brain electrical circuitry

...e first on the sense of smell, since the olfactory system not only involves complex neural circuits but also has a behavioral component. "The perception of smell is quite complex," Ehlers said. "The brain can decode thousands of smells that enter the nose, discriminating even the slightest scent and ofte...

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