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Tag: "sensitive" at biology news

New lab technique identifies high levels of pathogens in therapy pool

...he technique used in the study is 1,000 times more sensitive than standard microbe-culturing techniques used at most indoor pool facilities today, the researchers said. The two-year study involved a molecular survey of a common RNA gene found in all life forms, eventually matching some cloned and sequenced bac...

Test for early detection of prostate cancer shows promise

...mors,?said Getzenberg, In addition to being highly sensitive to prostate cancer, the EPCA test is also very spe...y to further refine the EPCA test, to make it more sensitive so it can pick up even the smallest traces of the marker, and to verify its usefulness for detecting...

New understanding of DNA repair may pave way to cancer treatments

...t we found that by inhibiting ATF2, it became more sensitive to treatment," Ronai said. Consequently, his laboratory developed a small peptide that interferes with ATF2 function, efficiently blocking melanoma growth in mouse models. Ongoing studies are devoted to screening for compounds that mimic the peptide'...

Scientists journey to southern Africa to unravel the secret world of elephant communication

... elephants can feel, and even interpret, via their sensitive trunks and feet. Scientists have long known that seismic communication is common in small animals, including spiders, scorpions, insects and a few vertebrate species, such as white-lipped frogs, kangaroo rats and golden moles. Seismic sensitivity al...

First technology to remove prions that cause vCJD from blood launched

...egardless, there are no available diagnostic tests sensitive enough to identify asymptomatic vCJD infected people. Measures to Safeguard the Blood Supply Since vCJD emerged, the UK has taken steps to reduce the risk of food-borne infections from consumption of contaminated bovine products. In 1999, the UK als...

Integration of Agilent's MS technology, Proteome Systems' software to help scientists in proteomics research

...ome Systems. "The combination of Agilent's robust, sensitive MS technology with our cutting-edge, automated glycomics system creates a powerful integrated solution that will streamline the study of glycoproteins." The co-marketed product is expected to be available this summer. Agilent and Proteome Systems wi...

Taking the piste out of Alpine vegetation

...extraordinarily rich in species, but they are also sensitive and susceptible to changes in land use and climate. ...

Elephant seal pups suffer from ocean warming

...elephant seal pups. Elephant seals are shown to be sensitive to ocean temperature changes associated with both ...s at the surface of the ocean are known to be very sensitive to water temperature changes, as an increase in water temperature usually causes their prey to migra...

Doing a spin with DNA

... broken ends back together again. With the help of sensitive measuring devices, the researchers could measure various parameters such as the friction of the rotating DNA in a cavity of the enzyme. The research has provided new insights into the interactions between DNA and the enzyme, which are of fundamental ...

Finding hidden invaders in a Hawaiian rain forest

...t or satellite approaches, but the new methods are sensitive to its high water content. In addition, the aircraft-based analysis discovered that ginger reduces the amount of nitrogen in the Metrosideros forest canopy--a discovery that was later corroborated by ground-based sampling. Peter Vitousek from Stanfo...

Gene keeps neural cells on correct developmental path

... probably orchestrates a precise sequence of genes sensitive to different levels of REST, Mandel speculates. REST has been a difficult gene to study. Using knockout technology -- a popular technique for determining gene function -- does not work for REST because mice lacking the gene die before they are born....

Mutation in clams protects against paralytic shellfish poisoning but raises human health risk

... amino acid in a sodium channel, makes nerves less sensitive to those toxins. The discovery is reported in the April 7 issue of the journal Nature. The authors suggest that it has wide ranging implications for the evolution of shellfish in the presence of toxic algae and increases the risk of PSP to people wh...

Atmosphere may cleanse itself better than previously thought

...lower UV spectrum, and the team theorizes that the sensitive laser technique, called action spectroscopy, could reveal OH radical production from other chemically related molecules as well. "This study is important because it shows that the atmosphere could be generating far more OH radicals than we thought b...

Life detection instrument passes key test on road to Mars

... microfluidic channels are 100 to 1,000 times more sensitive for amino acid detection than the original life detection instrument flown on the Viking Landers in the 1970s. The Atacama Desert was selected by NASA scientists as one of the key spots to test instruments destined for Mars, primarily because of its...

Team Invents Device For Weighing Individual Molecules

...s says that their current generation of devices is sensitive to added mass at the level of a few zeptograms, wh... hand to push mass-sensing technology to even more sensitive levels, probably to the point that individual hydrogen atoms can be weighed. Such an intricately acc...

Protein synthesis can be controlled by light, opening way for new scientific, medical applications

...) The new chromophore, called Bhc, is the only one sensitive enough to light that it can mediate light-induced protein synthesis inhibition in a living system. While previous studies have focused on releasing molecules that activate biological events, little has been done in the area of regulating the inhibit...

Two studies document rise of superbugs in the environment

... want to "maximize the chance that the organism is sensitive to at least one of them," Dr. Pop-Vicas said. "Starting to treat an infection with inadequate therapy is associated with a worse outcome than using adequate therapy from the start," she added. Once the bacterium's drug resistance is known, the therap...

Recombinant DNA technology may enable oral, rather than injectable, delivery of protein drugs

...he sites where they are needed. They are also very sensitive to digestive enzymes and may be destroyed by stomach acid before they can be absorbed." To sidestep the difficulty of getting these large protein drugs through the GI tract intact, pharmaceutical scientists have looked at other ways to deliver protei...

Novel live reporting system to track cells

...ications to cells. This approach rendered ferritin sensitive to tetracycline (TET), a common antibiotic, so tha...l surrounding cells showed up in the MRI (which is sensitive to magnetic particles such as iron), effectively identifying the genetically modified cells. This m...

Small worm yields big clue on muscle receptor action

... lacking any of five receptor subunits known to be sensitive to levamisole, a chemical that poisons nematodes. Two additional receptor subunits -- ACR-16 and ACR-8 -- identified using Vanderbilt's data, were found to be likely candidates for the remaining acetylcholine response. ACR-16 was singled out as the k...

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