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Tag: "allows" at biology news

Trusting your instincts leads you to the right answer

... an essential subconscious scanning technique that allows us to pick out unique and distinctive features in a crowd ?such as colour or orientation. Soon after our eyes have fixed on a target, the conscious or top-down part of cognition engages and examines whether the candidate really is the target or not. ...

New study sheds light on 'dark states' in DNA

...olecules absorb light at specific wavelengths, and allows them to study events happening in less than a picosecond. They found that DNA dissipates UV energy through the dark state 10-50 percent of the time, depending on which DNA base is excited, and whether a sugar molecule is attached to the base or not...

Scientists use nanoparticle to discover disease-causing proteins

...th isotopic tags while cells are still alive. This allows the scientists to determine the activities of proteins that play roles in specific diseases. Proteins carry genetic messages throughout the cell causing biochemical changes that can determine whether a cell behaves normally or abnormally. Proteins al...

Darwin's famous finches and Venter's marine microbes

...n directly from the environment. "Metagenomics allows us to sample the 99 percent of all bacteria that won’t grow in the lab," explains Manning. "GOS opens a huge window into biological and genomic diversity and, within this diversity, to better understand many of the fundamentals of biology." he adds....

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

.... "Our next step is to create a strategy that allows us to downplay the regulatory T cells while still benefiting from the increase of effector T cells," Lepisto said. Each year, pancreatic cancer kills approximately 32,000 people in the United States alone. Pancreatic cancer is notoriously resistan...

Bioluminescence at the service of a novel cerebral imaging technique

...rmore, this little-invasive and non-toxic approach allows the recording of neuronal activity over periods of several hours. It is thus possible to monitor the cerebral activity of a Drosophila fruit fly for 24 or even 48 hours. Because of these characteristics, the new tracer can demonstrate new physio...

Researchers develop technique for bacteria crowd control

...ditional centrifuging techniques, the new approach allows selective concentration of healthy cells," said Andrey Sokolov, Ph.D. student from Illinois Institute of Technology and contributor to the research. In addition to the development of the device used in the experimentation, research findings uncov...

Researchers urge monitoring of bone health during chemotherapy

...creased because by speeding blood cell regrowth it allows patients to undergo more intensive chemotherapy regimens in which anticancer agents are given at more frequent intervals. Studies have suggested these dose-dense therapies could prolong survival in women with breast cancer. "We are not at all advo...

Warming oceans threaten Antarctic glaciers

...e can now make measurements of the Earth’s surface allows us to see the increasingly subtle changes within the ice sheets that will govern their future sea level contribution."...

Bats prey on nocturnally migrating songbirds

...was applied because this recently developed method allows tracking species' main dietary specializations and trophic level position along food chains. The researchers concentrated on carbon and nitrogen isotopes, which are among the best dietary tracers. They analysed their concentrations in bats' blood thr...

OHSU lab finds meth receptor that could lead to therapy

...Biology at OHSU is one of the few in the U.S. that allows biologists and chemists to work side-by-side, using their combined skills to identify drug targets and to design new drugs to treat diseases like drug addiction," said David Dawson, Ph.D., OHSU professor and chairman of physiology and pharmacology. "...

Penn study on lung-infecting bacterial enzyme suggests new approach to cystic fibrosis treatment

...in CF and AIDS patients. In healthy lungs, CFTR allows the passage of chloride ions (and accompanying wat...brane. These oocytes are an experimental tool that allows the researchers to assess the flow of ions across the membrane by measuring electrical current. The ...

Scientists create dual-modality microbeads to improve identification of disease biomarkers

...cles into the beads. Adding magnetic nanoparticles allows the use of a magnetic field to attract and easily ...ue optical signature. Having different color beads allows the researchers to detect several target molecules at the same time in the same liquid sample. "W...

Chemical switch triggers critical cell activities

...alled E2. When attached to E2, this thioester bond allows E2 to bind to a third enzyme called E3, which then helps E2 hand NEDD8 off to the ultimate target molecule at the end of the race. In the cell, this NEDD8 relay race triggers a number of biochemical reactions, one of which takes the brakes off cell d...

Study uncovers a lethal secret of 1918 influenza virus

...ection, this virus does something to the host that allows it to grow really well," says Kawaoka. "But we don't know what that is." Knowing that the virus does something early in infection to trigger such a devastating immune response may provide biomedical researchers with clues about how to intervene an...

Brain networks strengthened by closing ion channels

...nsten said inhibiting cAMP closes the channels and allows the network to reconnect. The study also found alpha-2A adrenergic receptors near the channels that inhibit the production of cAMP and allow the information to pass through into the cell, connecting the network. These receptors are stimulated by a...

Batten down the hatches against HIV

... report in the journal Angewandte Chemie that this allows for much better silencing effect to the cells than...or CXCR4. The use of short interfering RNA strands allows the CD4 and CXCR4 genes of the T-cell to be shut off. The T-cell then strops producing these recepto...

Triplex assay used to assay duplex genomic DNA

...ive minutes. The highly sensitive diagnostic assay allows for the direct detection of base sequence in human...hington, has one moving part, the syringe pump. It allows samples to be automatically quantitated, a necessary step in the Genomic Assay® because samples must...

Buckyballs used as 'passkey' into cancer cells

...e's famed buckyball nanoparticles as passkeys that allows drugs to enter cancer cells. The research appears in the Jan. 21 issue of the journal Organic and Biomolecular Chemistry. All living cells defend themselves by walling off the outside world. Cell walls, or membranes, form a protective cocoon arou...

Speeding 'fingertip' discovery -- 20 years of protein info in 1 place

...in the literature and the PhosphoMotif Finder tool allows any researcher to find potential phosphorylation sites in any protein of interest. “The power of this technique is not just in the numbers,?says Pandey. “Rather, we’ve found what you might call new information about old proteins, and we hope the ...

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