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Tag: "gives" at biology news

Drug resistant avian influenza viruses more common in Southeast Asia than North America

...as acquired either a beneficial genetic trait that gives it a survival advantage in a particular environment and therefore makes the organism more likely to survive and multiply; or a trait that makes it vulnerable to something in the environment, and therefore more likely to become extinct. The increasin...

U-M scientists discover identifying markers for primitive blood-forming stem cells

... says. "We showed that using just two SLAM markers gives you similar or better purity than 10 to 12 of the best classical markers combined. It reduces the skill and time required to pick out a hematopoietic stem cell and makes the process simpler and less labor intensive." "Many of the current markers we ...

Researchers discover key to human embryonic stem-cell potential

...an embryonic stem-cell regulatory circuitry. "This gives us a framework to further understand how human development is regulated," says Boyer. "These findings provide the foundation for learning how to modify the circuitry of embryonic stem cells to repair damaged or diseased cells or to make cells for ...

Purdue researchers find key to rice blast fungus

...need to know the signal, or ligand, the rice plant gives to the receptor on the fungus that allows the penetration process to proceed. We need to understand the whole communication among all the genes in the rice blast penetration pathway before we can design a rice plant that resists this fungus." Resear...

Picky female frogs drive evolution of new species in less than 8,000 years

... be new species. And I think that's kinda cool. It gives us a mechanism for very rapid speciation." ...

An essential regulator of body weight revealed

... these neurons before they're functionally engaged gives the developing mouse brain a way to compensate," Palmiter said. "But it's still a tall challenge. You're asking some other neuron, presumably, to either increase what it normally does, or to do something that it never did before. How does that happen...

UQ scientists break new ground in fight against infection & chronic disease

...lammatory bowel disease, by using a mechanism that gives the human body a more rapid response to infections. The discovery, made by four researchers from UQ's Institute for Molecular Bioscience (IMB), will be published in the December 2nd edition of the world's leading scientific journal Science. It in...

Researchers learn how blood vessel cells cope with their pressure-packed job

...fibrous protein that is part of the machinery that gives muscle its ability to contract. Actin also gives virtually all cells their ability to make an internal "cytoskeleton." The stress fibers of endotheli...

Plants reveal a secret and bring researchers nearer a cleaner future

... molecular basis for the release of dioxygen. This gives new insight into the mechanism of photosynthesis. In order to study this process, the use of synchrotron light was crucial: "A very intense and stable X-ray beam is necessary to perform this study on such a complex, highly diluted protein present ...

New molecule may aid in production of biofuels and fungi-resistant plants

... component of these organisms. For example, chitin gives strength and stiffness to the shells/cuticles of shrimps and insects and to the cell walls of fungi. Because chitin is an abundant resource and, most importantly, because it occurs in several types of plague organisms and parasites, chitin degradatio...

The earliest animals had human-like genes

...reserved over the last half a billion years. "This gives us two independent measurements that tell the same story," Raible explains. "Most introns are very old, and they haven't changed very much in slowly-evolving branches of life, such as vertebrates or annelid worms. This makes vertebrates into somethin...

Mammalian Transcriptome Mapped

...xpressed in living cells, and its complete mapping gives scientists major insights into how our genome works. "This is arguably the next major step after the human genome project," says Professor Claes Wahlestedt, M.D., Ph.D., who is the director of Pharmacogenomics at Scripps Florida. Wahlestedt is also ...

Researchers discover why melanoma is so malignant

...n early embryonic cluster of cells that eventually gives rise to a variety of cell types in the adult, including dermal melanocytes. In this early embryonic stage, Slug enables the neural crest cells to travel, and then settle, throughout the developing embryo. "Slug is a key component of the neural cres...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

...as entirely forested or deforested.) "This method gives us an incredible map of the ubiquitous but very diffuse types of disturbances that exist in Brazil or in any tropical forest," Asner said. The researchers found that, from 1999 to 2002, selective logging added 60 to 128 percent more damaged forest ...

Give thanks for the cranberry, say dental researchers

...forming a gunky fortress that covers the tooth and gives bacteria a safe haven to munch on sugar, thrive, and churn out acid. Koo's team found that cranberry juice prevents bacteria from forming plaque by inhibiting those enzymes and by stopping additional bacteria from glomming on to the ever-growing goo....

MIT researcher finds neuron growth in adult brain

...g that neurons are able to grow in the adult brain gives us a chance to enhance the process and explore under what conditions -- genetic, sensory or other -- we can make that happen," said study co-author Elly Nedivi, the Fred and Carole Middleton Assistant Professor of Neurobiology. While scientists hav...

Anti-cancer drugs may hold promise for premature aging disorder

...the study. The HHMI/NIH Research Scholars Program gives outstanding medical and dental students the opportunity to conduct biomedical research under the direct mentorship of senior NIH research scientists. ...

'Acid rain' and forest mass: Another perspective

...nutrients (amount of nutrients that the vegetation gives back to the soil together with the litterfall and foliar excretion) and a drop in their retranslocation (reabsorption of nutritive elements). Thus, the efficiency in the use of cations was affected by the atmospheric deposition of contaminants. Magne...

Researchers develop new method for studying 'mental time travel'

...ing around in your head," Norman said. "Our method gives us some ability to see what cues participants are using, which in turn gives us some ability to predict what participants will recall. We are hopeful that, in the long run, this...

HIV drug resistance increasing in UK and among highest in the world

...tance (high level resistance to at least one drug) gives an overall estimate of 9% for the UK for the years 1996-2003, with the rate being 12% in 2002-3. The authors say: 'The United Kingdom has among the highest reported rates of primary resistance to HIV drugs worldwide. By limiting the therapeutic opti...

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