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Tag: "biologically" at biology news

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...ith temperature, but the “fluid” phase is the most biologically relevant. Using X-ray diffuse scattering, the team quantified structural properties of different lipid bilayers seeded with FP-23 peptides. The lipid bilayers varied in their thicknesses, which affects the stiffness of cell membranes. The research w...

New findings challenge established views on human genome

...ive, four-year effort to build a parts list of all biologically functional elements in 1 percent of the human geno...th a vast amount of so-called junk DNA that is not biologically active. The new data indicate the genome contains very little unused sequences and, in fact, is a...

Extra-aggressive form of idiopathic pulmonary fibrosis identified

...both groups, suggesting that rapid progressors are biologically distinct from slow progressors. "While preliminary, these results may allow investigators to identify biomarkers of disease progression," said Dr King, who is the Chief of Medicine at San Francisco General Hospital and an internationally renowned...

Gene malfunctions cause schizophrenia, depression symptoms in mice

...and basic studies of DISC1 as a common genetic and biologically plausible risk factor for major mental illness," concluded Clapcote and colleagues. They wrote that "our findings lend further credence to the growing recognition that schizophrenia and bipolar disorder share, at least in part, common genetic etiolog...

Scientists discover new life in the Antarctic deep sea

...atureless abyss is in fact a dynamic, variable and biologically rich environment. Finding this extraordinary treasure trove of marine life is our first step to understanding the complex relationships between the deep ocean and distribution of marine life." Three research expeditions, as part of the ANDEEP pro...

Mimicking how the brain recognizes street scenes

...veloped independently of neuroscience. Our work is biologically inspired computer science." "We developed a model of the visual system that was meant to be useful for neuroscientists in designing and interpreting experiments, but that also could be used for computer science," said Thomas Serre, a former PhD s...

Gene elevating breast cancer risk also causes prostate cancer

...sposed to believe that the evaluation of yet other biologically significant factors will in time improve the situation. "Hopefully, increased knowledge of underlying mechanisms will provide better conditions for cancer prevention, diagnostics and treatment," Winqvist says. ...

Biologists develop large gene dataset for rice plant

... went unnoticed for many years, or were considered biologically unimportant, said Meyers. Small RNAs are now known to play an important role in gene regulation, he said, adding that deficiencies in small RNA production can have a profound effect on development. "Small RNAs also have been associated with oth...

Researchers from the UGR use a bacterium to obtain biopreservatives from food

...lternative." Bacteriocins are proteins that are biologically active against members of the same species or species closely related to the producing bacterium. Some noteworthy bacteriocins those produced by lactic-acid bacteria (LAB), as they have been used to prepare fermented food, improve quality, and extend...

HIV protein enlisted to help kill cancer cells

...ortion of the HIV protein called TAT can transport biologically active compounds into cells. TAT is small, but it can move massive molecules. You could almost hook TAT up to a train, and TAT would drag it inside a cell. So we've taken advantage of this ability." In an article published online in January 2007 in...

Scientists map key landmarks in human genome

...egins and possibly ends, and where there are other biologically important structural features," said Fisher. Transcription factors are proteins that bind to particular DNA sites in "promoter" regions of genes and turn the genes on or off. The novel method employed gene microarray studies followed by sophistica...

New cigarette designs don't offer lower predicted cancer risks

...nal research of projects of Dr. Pankow designed to biologically confirm his epidemiological studies." Pamela Clark, Ph.D., senior research scientist at Battelle Centers for Public Health Research and Evaluation in Baltimore, said Pankow's study "has profound implications for tobacco product regulation." Clark ...

Making mice with enhanced color vision

... expressed in the retina. The human receptors were biologically functional in the mice, but the real question was whether the mice could use the new visual information. To address this question, the researchers used a classic preference test; mice set before three light panels were trained to touch the one pa...

DNA layer reduces risk of reserve parts being rejected

...ive bone tissue. Finally, DNA can be enriched with biologically active factors that, for example, facilitate the formation of bone tissue and blood vessels. All in all, a DNA coating could be safe, reduce the immune response, facilitate bone attachment and be functionalisable. Layer by layer However, enz...

Genomics throws species definition in question for microbes

...croorganisms are organized into robust, definable, biologically meaningful clusters that adhere to the concept of species. The acquisition of draft-quality genome sequences for all type strains to help advance the integration of genomic information into our understanding of microbial diversity and enable res...

Genes and genius: Researchers confirm association between gene and intelligence

...nd its numerous variants to learn what is going on biologically that might affect cognitive performance. Presently, she says it's too early to predict how small changes in the gene might be influencing communication in the brain to affect intelligence, and she says it's nearly certain CHRM2 is not the only gene i...

Ocean sampling yields environmental sources of coral symbionts

...orals is the foundation of a highly productive and biologically complex ecosystem, but our understanding of how this symbiosis is established by new corals has been limited by the fact that the symbiotic algae are difficult to find and study in the ocean. But now a group of researchers has successfully identified...

Comprehensive model is first to map protein folding at atomic level

...ct how small proteins fold into three-dimensional, biologically active shapes. The work could help researchers bet...bout as long as some proteins take to assume their biologically stable configuration, and at least a thousand times longer than previous methods -- is described thi...

Peering into the shadow world of RNA

...ed non-coding RNA, meaning that although it may be biologically active, it does not carry the instructions for producing any protein in the body. The importance of better understanding these non-coding forms of RNA is underscored by the fact that they are known to play roles in such critical processes as embr...

Ghengis Khan wonder berry could conquer heart disease

...n heart health. Sea buckthorn is a known source of biologically active chemicals and is used in Tibet, Mongolia, China and Russia for health drinks and various cosmetics. Juice extracted using current methods is of poor quality, but scientists in India have developed a highly efficient technique to extract large ...

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