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Tag: "contribute" at biology news

MIT: Pulsing light silences overactive neurons

...ering insight into which brain regions and neurons contribute to specific behaviors or pathological states, Boyden said. The halorhodopsin gene was originally discovered in the 1980s, but Boyden didn't think its full potential had been explored. The protein expressed by the gene turned out to have exactly th...

Genes and genius: Researchers confirm association between gene and intelligence

... cause mental retardation, for example. Those that contribute to less dramatic differences have been much harder to isolate. Dick's team is not the first to notice a link between intelligence and the CHRM2 gene. In 2003, a group in Minnesota looked at a single marker in the gene and noted that the variation ...

Brain works more chaotically than previously thought

...bout the way our brain works. Moreover, they might contribute to the development of new medical drugs. The study is due to appear shortly in the prestigious academic journals "Nature Neuroscience" and has already been posted online (doi:10.1038/nn1850). Until now everything seemed quite clear. Nerve cells rece...

Stress hormones may play new role in speeding up cancer growth

...e receptors as well," he said. "MMP-2 and MMP-9 contribute to the aggressiveness of these tumors," Yang said. "It isn't clear exactly how they are operating but they may work with VEGF to facilitate blood vessel growth in new tumors so that they can grow." The target adrenergic receptors for these hormone...

Interaction between lymph and liver cells may affect immune response

...n the liver during early hepatitis C infection may contribute to the impaired immune response seen in chronic hepatitis C. "As well as providing insight into the normal immune system, our observations might have implications for liver conditions associated with altered LSEC morphology and in particular those...

Early-stage immune system control of HIV may depend on inherited factors

...ociated with slower HIV-1 disease progression also contribute more to this initial antiviral immune response," s...e and the specific viral sequences being displayed contribute to the strength of immune response against primary HIV infection," says Altfeld. "In addition, the ...

With fruit fly sex, researchers find mind-body connection

...ontext of other developmental genes." How genes contribute to behavior, from aggression to alcoholism, is a growing and contentious area of biology. For more than a decade, McKeown has been steeped in the science, using the fruit fly as a model to understand how genes build a nervous system that, in turn, co...

Stem cells engage in dialogue with the cells that regulate their futures

...cer might form. A decline in cell production might contribute to the frailty of old age. While a few stem-ce...ative Medicine. "Demonstrating that stem cells can contribute to niche function has far-reaching consequences for stem-cell therapies and may provide insight on h...

Genome info from 'plant destroyers' could save trees, beans and chocolate

...ed fund the work. "These new genome sequences will contribute to our basic understanding of normal plant-microbe relationships as well as their roles in disease," she said. ...

Bones at the nanoscale

...althy bone so fracture resistant. The research may contribute to medical as well as technological developments: "The outcome of this research may contribute to a future development of bio-inspired and new nanocomposite materials. On a medical level, it may ...

Heart smart: new drug improves blood flow

...nderlying cardiovascular disease. "Free radicals contribute to the formation of arterial blockages. What's more, as the number of free radicals increases, they also interfere with the ability of the cells lining arteries to control the contraction and dilation of the arteries," Dr. Schmidt says. "The arteries...

NHGRI aims to make DNA sequencing faster, more cost effective

...le participating in studies to identify genes that contribute to common, complex diseases. Ultimately, NHGRI's vision is to cut the cost of whole-genome sequencing to $1,000 or less, which will enable the sequencing of an individual's genome during routine medical care. The ability to sequence an individual gen...

Transplanted photoreceptor precursor cells restore visual function in mice with retinal degeneration

...lear example of how basic fundamental research can contribute to treatment of blinding diseases," he says. "We now have proof of principle that our approach to repairing damaged retina by transplantation of appropriate cells can be successful." Swaroop sees several next steps in his quest to find treatments...

Newts which regrow their hearts

...mans, do not have this ability, the findings could contribute to new cell therapies for patients with damaged organs (Journal of Cell Science, 2006). The red-spotted newt, Notophthalmus viridescens, is a favourite animal of the researchers working with Thomas Braun in Nauheim. This amphibian comes from the wet...

Molecules in blood foretell development of preeclampsia

...ndoglin and the altered sFlt1/PlGF ratio appear to contribute to the development of preeclampsia, Dr. Levine said. "Severe disease usually occurs in women with high levels of both measures and not in women with high levels of only one or the other." Dr. Levine added that detecting high levels of both soluble...

Studies find general mechanism of cellular aging

...re are clearly things in addition to p16INK4a that contribute to aging. We don't yet know what they are." However, the gene may prove immediately useful as a biomarker for studies of aging, Sharpless said. "If you were going to calorically restrict yourself or take green tea or resveratrol every day for years ...

Malaria may fuel spread of HIV in sub-Saharan Africa

...iculties we face with these other diseases and may contribute to the emergence of more lethal or drug-resistant strains of these infections," Kublin added. ...

American scientist's research of life's first cells

...icants' ability to articulate how their work would contribute to the field of molecular biology, which investigates biological processes in terms of the physical and chemical properties of molecules in a cell. A judging panel selects the GE & Science Prize for Young Life Scientists grand prize winner and...

Study illuminates how the plague bacteria causes disease

...ease, the researchers said. The results might also contribute to new strategies for fighting the bug. "Yersinia...bors numerous genes, including a large number that contribute to the ability of diverse pathogens to deliver virulence factors into host cells. One of these genes...

Computer scientists unravel 'language of surgery'

...al procedure. The video data from the camera could contribute data to the team's efforts to identify effective surgical methods. Hager's Johns Hopkins collaborators include David D. Yuh, a cardiac surgeon from the School of Medicine. "It is fascinating to break down the surgical skills we take for granted int...

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