Tag: "technique" at biology news

DNA lends scientists a hand, revealing new chemical reactions

...now, shifting their focus a bit, they're using the technique to reveal as-yet undiscovered chemical reactions. DNA's inherent sequence selectivity - binding only to other strands with a complementary sequence - means that DNA-templated synthesis can be used to evaluate hundreds of potential chemical reactions ...

Cancer vaccine based on pathogenic listeria bacteria shows promise targeting metastases

...steria and inserted cancer antigens, again using a technique developed by Portnoy, then infused the vaccine int... actin motors and spreading from cell to cell. The technique worked, and Cerus adapted one of Portnoy's attenuated strains for its vaccine. The particular strain...

Hidden diversity: DNA 'barcoding' reveals a common butterfly is actually 10 different species

... and standardized signature piece of the genome a technique called DNA barcoding shown that this "species" is really an amalgam of a number of genetically distinct lineages, each with different caterpillars and preferences in food plant and ecosystem. However, as many as six species can live in the same pl...

Veterans with Gulf War syndrome have damage in specific, primitive portion of nervous system

... the new study Dr. Haley and his colleagues used a technique that monitors changes in approximately 100,000 hea...tle changes in heart function using a mathematical technique called spectral analysis, researchers found that parasympathetic brain function, which usually peaks...

DNA barcode finds four new bird species

... - fewer than two million have been named. Using a technique called DNA barcoding, researchers at Rockefeller U...entification of millions of items. The technique depends on analyzing a portion of a gene called cytochrome c oxidase I (COI) that is found in the po...

Rice finds 'on-off switch' for buckyball toxicity

... industry," Colvin said. "Moreover, we believe the technique can prove useful in tuning the toxicity of other nanoparticles." The researchers postulate that cell death in the tests occurred via physical disruption of the cell membrane by oxygen radical species generated by the buckyballs. Colvin and her collea...

UCI scientists successfully target key HIV protein; breakthrough may lead to new drug therapies

...rupted Nef's interaction with other proteins. The technique used for identifying the synthetic molecules also ...eatment options. The researchers used a scientific technique called "phage display," which is used to identify small molecule inhibitors that can disrupt interac...

Anthrax enzyme images reveal secrets of antibiotic resistance, suggest new drug design

...f the enzyme shape. The researchers also used this technique to make images of the enzyme bound to the two molecules that the enzyme chemically combines with to make folic acid. Based on these images of the enzyme and its interaction with other molecules, the investigators discovered how it manipulates pABA a...

Groundbreaking research could ignite new solutions to heat transfer in nano-devices

For the first time, an innovative research technique successfully completed a detailed measurement of h...ove heat effectively. There is no reason that this technique is not applicable to just about any molecule." Key to the discovery was the collaboration between th...

Scientists find nanowires capable of detecting individual viruses

... viruses with great precision, suggesting that the technique could be scaled up to create miniature arrays easily capable of sensing thousands of different viruses. The work was reported in the most recent issue of the Proceedings of the National Academy of Sciences . "Viruses are among the most important ca...

A novel, safer strategy for regulating gene expression

...nge of therapeutic and research applications. The technique involves inserting a special DNA sequence into a p...he desired protein. Finally, they proved that the technique works in live animals. They introduced the gene for a protein called luciferase, containing an embed...

Study explores gene transfer to modify underlying course of Alzheimer's disease

...y Medical Center have successfully initiated a new technique that uses gene therapy to deliver nerve growth fac...e. Rush is the only center in this study. The new technique uses CERE-110 as the gene therapy agent. CERE-110 carries the Nerve Growth Factor (NGF) gene encased...

Wastewater could treat itself, power city

...id." Bagley and Shizas used bomb calorimetry, a technique that measures the heat content of materials, to determine the amount of energy stored in wastewater's organic matter. The city plants currently use aerobic treatment, a process by which microbes decompose organic matter in the presence of oxygen. By ...

Genes expose secrets of sex on the side

... exist," Wilder said. The new technique revealed that Y-chromosome DNA and mitochondrial DNA differ to the same degree among populations. Hammer said, "That alone wouldn't say the Y chromosome is migrating more, but if just half as many males are getting their genes in...

JCI table of contents September 15, 2004

...on is likely to be in the mitochondrial DNA. This technique is a very rapid and powerful means to categorize t...hors effectively demonstrated the strength of this technique using cells from 10 different patients, and showed that 7 contained nuclear mutations and 1 containe...

Venn diagram tactics to vet complex disease

...on is likely to be in the mitochondrial DNA. This technique is a very rapid and powerful means to categorize t...hors effectively demonstrated the strength of this technique using cells from 10 different patients, and showed that 7 contained nuclear mutations and 1 containe...

Peering inside the body, with a new spinliterally

...cific Northwest National Laboratory, and slow-spin technique inventor. "We think this new technique can be used to diagnose diseases and assess the body's response to drugs and even to observe the wor...

First glimpse of DNA binding to viral enzyme

...ns, all located near the DNA. The team used a technique called synchrotron footprinting, which was pioneer...virus protease. "Synchrotron footprinting is a technique recently developed at Einstein that allows structural information on the contacting surfaces of biol...

Images of 'tail' of protein needed for cell multiplication suggest anticancer drug targets

...he protein tail. This problem was overcome using a technique specially developed by Robert Cassell, a macromolecular specialist III in the St. Jude Hartwell Center for Biotechnology and Bioinformatics. By substituting a molecule called selenomethionine in place of certain amino acids in the E2 tail, he modifie...

Early detection hope for eye disease

...inopathy, and age related macula degeneration. The technique was revealed today at the Institute of Physics con...eriot Watt University in Edinburgh, outlined a new technique that uses spectral imaging, a non-invasive and safe method of taking pictures of the retina, to stud...

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