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Tag: "tool" at biology news

Genetically engineered mosquitoes show resistance to dengue fever virus

...re very exciting because they provide us a genetic tool we can use to control mosquito-borne diseases such as dengue fever," James said. "We have been working for some time on the individual components of creating a genetically modified mosquito that would fend off dengue infection, but this is the first ...

Researchers discover way to transport environmental arsenic to plant leaves in new clean-up strategy

...to shoots. The payoff could be a new and effective tool in cleaning up thousands of sites where arsenic presents serious dangers to human health. The research was just published in the Proceedings of the National Academy of Sciences (PNAS). Other authors of the paper include Om Parkash Dhankher and Eliza...

Biologists develop genome-wide map of miRNA-mRNA interactions

...and are linked to a new graphical network-browsing tool developed in the NYU Center for Comparative Functional Genomics. This allows for exploration of miRNA target predictions in the context of various functional genomic data resources ( gnetbrowse.org ). ...

For the first time: Longevity modulated without disrupting life-sustaining function

...ff. "In the future, we may use this protein as a tool to study the genetic and metabolic requirements for extending longevity without causing diverse, wide-ranging effects on the development and maintenance of the physiological equilibrium in the organism," said Dillin. ...

Invasive exotic plants helped by natural enemies

...number of exotic herbivores, could be an effective tool in reducing invasive exotic plants," said Parker. ...

Scientists develop malaria forecasting tool to predict disease risk

A new tool to predict epidemics of malaria up to five months in advance has been developed by a scientist at the University of Liverpool. The model uses predictions of climate variability to indicate the level of risk of an epidemic up to five months in advanc...

Strawberries by design

...ection of mutants that will serve as an invaluable tool not only for discovering new genes in the Rosaceae family but also for establishing the functions of these genes through high-throughput screening methods." ...

Biologists visualize protein interaction that may initiate viral infection

...n a host cell's surface. Using a powerful imaging tool called cryo-electron microscopy, the biologists took a picture of the virus attached to the CRD shortly after the two joined together. It is the first time scientists have visualized the virus and CRD binding. "We formed the virus-CRD complex, took ...

Oops! Researchers publish new findings on the brain's response to costly mistakes

...r more than a decade, Gehring has used a measuring tool known as the event-related potential or ERP to study brain responses to various situations, assessing changes in electrical activity through sensors arranged on a mesh cap that is placed on the head. The method is similar to techniques used to study ...

New analysis shows three human migrations out of Africa

...ell as the adaptation and expansion of a new stone tool culture first found in Africa and later at 700,000 years expanded throughout Eurasia. "By the time you're done with this phase you can be 99 percent confident that there was recurrent genetic interchange between African and Eurasian populations," he...

Access to antiretrovirals unlikely to reduce HIV infection rates

...d not only as a treatment but also as a prevention tool in its own right. To test this, Baggaley and colleagues used a model to predict and compare the impacts of alternative strategies of increasing ART access in resource-poor countries. Some of the strategies included the provision of diagnostic labor...

Advanced genomics and proteomics improve the diagnosis and treatment of a deadly lung disease

...r Laboratory, and has become a powerful laboratory tool to study cancer and other developmental events through its ability to harness the RNA interference pathway and selectively switch off genes. "We knew what the protein did," said Hannon. "We knew it was an enzyme and that it recognized double-strand...

Molecule does more than slice and dice RNA

...r Laboratory, and has become a powerful laboratory tool to study cancer and other developmental events through its ability to harness the RNA interference pathway and selectively switch off genes. "We knew what the protein did," said Hannon. "We knew it was an enzyme and that it recognized double-strand...

Tool developed to silence genes in specific tissues using RNAi

...erence (RNAi), believed by many to be the ultimate tool to both decode the function of individual genes in...transient knockdown of the target gene. "Having a tool that will allow us to knockdown the expression of any given gene in any specific tissue or cell type...

Scientists seek to unwrap the sweet mystery of the sugar coat on bacteria

...s the microarray method could provide an important tool for identifying bacteria and diagnosing infection. It will also provide a way for scientists to start asking questions about the role that surface sugars play in bacterial infection and symbiotic relationships. ...

Sea coral's trick helps scientists tag proteins

...f the Russian Academy of Sciences in Moscow. "This tool opens new possibilities for studying protein and o...ls can activate the tag, which should make the new tool useful to many scientists, said Sergey Lukyanov, whose lab reports on the Dendra tag in the April 20...

Faster immune system testing set to improve poultry quality

...ence of bird flu. Useful research and preventive tool Reduced immunity is a serious problem for commerc...was needed. The new test is both a useful research tool and a way to provide poultry companies with an early warning for flocks that will experience seconda...

Engineered mouse mimics cognitive aspects of schizophrenia

...y Kellendonk and colleagues may provide a valuable tool for understanding this most malignant of mental disorders," wrote Snyder. Kellendonk and his colleagues based their experiments on a widely accepted theory that hyperactivity in the brain's dopamine machinery plays a central role in schizophrenia. D...

Gene therapy 'turns off' mutation linked to Parkinson's disease

...lab have been able to deliver the RNA interference tool to the brain of rats and turn off the alpha-synuclein protein in neurons. "This is the first step in developing a new therapy for Parkinson's disease based on molecular knowledge of the disease," said Mohan K. Sapru, research assistant professor of ...

Newly discovered protein kills anthrax bacteria by exploding their cell walls

... solution based on the protein would be a powerful tool for cleaning up after an anthrax attack. All bacteria, anthrax included, have natural predators called bacteriophage. Just as viruses infect people, bacteriophage infect bacteria, reproduce, and then kill their host cell by bursting out to find thei...

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