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Tag: "construct" at biology news

Scientists Replicate Hepatitis C Virus in Laboratory

...ct as start and stop buttons to gene activity. The construct was “naked,?meaning that it contained only nucleic...s the viral RNA in fully-formed HCV. The naked HCV construct was then placed into human liver cells in a cell culture medium. The NIDDK scientists found evidenc...

Nano-Probes Allow an Inside Look at Cell Nuclei

...els are also either toxic to cells or difficult to construct and manipulate. In the future, they hope to tailor quantum dots to track specific chemical reactions inside nuclei, such as how proteins help repair DNA after irradiation. They have already visualized the dots' journey from the area surrounding the ...

HIV vaccine trial breaks ground for future research

...The vaccine, produced by VaxGen, was a recombinant construct of the HIV envelope glycoprotein, similar to the type of vaccine used to develop a vaccine for hepatitis B. The vaccine was tested in a double-blind, randomized study of healthy participants who did not use intravenous drugs. The volunteers were men ...

Key mechanism in genetic inheritance during cell division identified

...rs say that ring formation is a complicated way to construct a microtubule binding structure, a microtubule binding ring might be uniquely suited to fulfill the functions of the Dam1 complex. In comparison with the purified Dam1, the Dam1 mutants produced partially formed rings that reduced microtubule binding...

Computational Method Speeds Mapping of Cell Signaling Networks

... a time and then tying the information together to construct a global picture of what’s going on inside the cell. But the molecules that make up individual pathways in signaling networks rarely operate in isolation--they "talk" to each other and work in sync to process information. What researchers have lacked...

Revolutionary nanotechnology illuminates brain cells at work

...esearchers better understand disease processes and construct new drugs." "FRET is like two musical tuning forks, which have the same tone," Okumoto continued. "If you excite one, it gives a characteristic tone. If you bring the second fork close to the first one, it will also start to give you a tone even tho...

New project aims to make large-scale lobster farms feasible

...versity of Miami will be working in Puerto Rico to construct lobster larvae collectors and determine the best design and placement locations on the cages; to set up submerged lobster enclosures and refuges referred to as casitas for raising juveniles; and to begin raising lobster in troughs on land. Work to de...

Master gene controls healing of skin in fruit flies and mammals

... and mammals share an ancient conserved pathway to construct and repair the body envelope that protects them from sharp edges and microbes, even though that body envelope is constructed of mostly different molecules." In their paper, the UCSD researchers state that studying the wound response pathway in fruit...

DNA constraints control structure of attached macromolecules

...s, duplex DNA has been used as a static lattice to construct geometrical objects in three dimensions. Instead of manipulating DNA alone into such shapes, the researchers are using DNA to control the folding and resulting structure of RNA. Eventually, they envision building supramolecular machines whose inner w...

UN successfully tests 'green' pesticide against locusts

...s, duplex DNA has been used as a static lattice to construct geometrical objects in three dimensions. Instead of manipulating DNA alone into such shapes, the researchers are using DNA to control the folding and resulting structure of RNA. Eventually, they envision building supramolecular machines whose inner w...

Health costs soar as 60 million Americans classed as obese

...s, duplex DNA has been used as a static lattice to construct geometrical objects in three dimensions. Instead of manipulating DNA alone into such shapes, the researchers are using DNA to control the folding and resulting structure of RNA. Eventually, they envision building supramolecular machines whose inner w...

Map of life on Earth could be used on Mars

...t development across the tree of life. "We try to construct the core with gene sequences, and then we look at the distribution of traits such as those involved in metabolism by laying it onto the tree," she said. Timely appearances of certain traits among prokaryotes on the tree of life can betray a trend of...

Motor transport in bio-nano systems

...laments can be isolated from the cells and used to construct biomimetic transport systems. In order to increase... can be isolated from biological cells and used to construct biomimetic transport systems. A relatively simple example for such a system consists of filaments wh...

Can our genes tell the story of our divergence?

... learned to use tools, and developed the skills to construct tree-bound nests high above the forest floor. We differ by just a tad over 1% at the DNA sequence level, yet scientists predict that both species should harbor genetic footprints of our divergence ?the subject of a recent study in the premier open-ac...

NHGRI Selects 13 More Organisms for Genome Sequencing

...erorhabditis bacteriophora). Researchers will also construct a physical map of the zebra finch (Taeniopygia guttata) genome, paving the way for later efforts to sequence selected regions of the songbird’s genome. “Sequencing the genomes of a diverse set of organisms is a powerful tool to understand the biolog...

Possible treatment found for 'chemobrain'

...erorhabditis bacteriophora). Researchers will also construct a physical map of the zebra finch (Taeniopygia guttata) genome, paving the way for later efforts to sequence selected regions of the songbird’s genome. “Sequencing the genomes of a diverse set of organisms is a powerful tool to understand the biolog...

Retina adapts to seek the unexpected, ignore the commonplace

...ltimate goal of the visual system is not simply to construct internally an exact reproduction of the external world, Meister and his colleagues write in Nature. Rather, the system seeks to extract from the onslaught of raw visual information the few bits of data that are relevant to behavior. This entails the ...

Making plant cells work like miniature factories

... chemical makeup within plant cells, the team must construct new analytical instruments capable of identifying molecules in such minute quantities. "Developing the instrumentation is a large part of the proposal and we're building a special, high-resolution mass spectrometer," Yeung said, "because there's not...

DNA self-assembly used to mass-produce patterned nanostructures

...mbers of the Triangle-area TROIKA collaboration to construct computing devices using DNA, were able to create the grids by using the binding properties of DNA to ensure that large numbers of DNA strands would assemble themselves in specified patterns. The two corresponding authors on the paper were Thom LaBea...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...t the LHRH targeting moiety, the nanoparticle-drug construct doesn't kill the cancer cells and it's like a generally systemic chemotherapy drug." Again, the LHRH-ironoxide-Hecate combination worked best in targeting and killing breast cancer cells, including metastatic cells. According to Leuschner, the ...

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(Date:8/28/2014)... Munich have assigned a number of 435-million-year-old fossils ... animals lived in shallow marine habitats and were ... Jurassic strata. , Before they sank to ... were fossilized some 435 million years ago, these ... seas although they were not exactly inconspicuous, ...
(Date:8/27/2014)... bears, giant ground sloths, saber-toothed cats and American camels ... at the end of the Pleistocene period. The cause ... scientists who, until recently, could only speculate as to ... Barbara,s James Kennett, professor emeritus in the Department of ... played a major role in the extinction. Their hypothesis ...
(Date:8/27/2014)... N.C. -- Duke University researchers have identified a gene ... called OSCA1, encodes a protein in the cell membrane ... adjusts the plant,s water conservation machinery accordingly. , ... associate professor of biology at Duke. , The ... Nature , could make it easier to feed the ...
Breaking Biology News(10 mins):Paleontology: Oldest representative of a weird arthropod group 2Nanodiamonds are forever 2Nanodiamonds are forever 3Water 'thermostat' could help engineer drought-resistant crops 2
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(Date:8/28/2014)... 28, 2014) A fortuitous collaboration at Rice ... a recently discovered natural antibiotic. , The laboratory ... someday help bolster the fight against bacteria that ... around the world. , As part of ... structural biologist Yousif Shamoo and their colleagues created ...
(Date:8/28/2014)... researchers place glue directly on the nerve stumps, but ... and allows glue to easily invade the nerve ends. ... to insert the nerve ends into the conduit because ... Xiangdang Liang and co-workers from the General Hospital of ... technique and defined the best parameters for its use ...
(Date:8/28/2014)... be treated with nasal septum cells. Researchers at the ... cells taken from the nasal septum are able to ... can thus repair articular cartilage defects. The nasal cartilage ... environment is associated with the expression of so-called HOX ... has published the research results together with the report ...
(Date:8/28/2014)... OTTAWA, August 28, 2014 One in every 200 ... with the number of people living with the disease ... according to a study by researchers at the Institute ... Eastern Ontario (CHEO), and the Ottawa Hospital Research Institute. ... prevalence in the world. , The study, published this ...
Breaking Medicine News(10 mins):Health News:Synthesis produces new antibiotic 2Health News:Synthesis produces new antibiotic 3Health News:Synthesis produces new antibiotic 4Health News:From nose to knee: Engineered cartilage regenerates joints 2Health News:Ontario has one of the highest rates of IBD in the world 2
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