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ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...ut those colors may mean more to parrots than what meets the eye. For more than a century, biochemists have known that parrots use an unusual set of pigments to produce their rainbow of plumage colors, but their biochemical identity has remained elusive. Now, an Arizona State University researcher has unc...

Transport System Smuggles Medicines Into Brain

...ut those colors may mean more to parrots than what meets the eye. For more than a century, biochemists have known that parrots use an unusual set of pigments to produce their rainbow of plumage colors, but their biochemical identity has remained elusive. Now, an Arizona State University researcher has unc...

MSI releases 'moleculizer' - a new approach to simulation of intracellular biochemical networks

...esearch labs. "Moleculizeris a powerful tool that meets a very real need for biologists,"explained Dr. Brent. "It is a critical step forward in our quest toprovide an accurate simulation of intracellular biochemical networks.""I've designed Moleculizer to be intuitive for biologists," said Dr.Larry Lok, a...

First technology to remove prions that cause vCJD from blood launched

.... The CE mark means the new prion reduction filter meets pan-European essential requirements for safety of medical devices. "The availability of our prion reduction filter is a seminal event heralding a new era in blood safety," says Eric Krasnoff, Chairman and CEO of Pall Corporation. "We are working ver...

Novel gene-silencing nanoparticles shown to inhibit Ewing's sarcoma

...es iron molecules through the bloodstream until it meets up with a transferrin receptor on the surface of another cell. The transferrin binds tightly to a receptor on the cell's surface, where it is drawn inside and surrounded by a small vesicle. The vessels are acidified, causing the nanoparticles to rele...

Unexpected lock and key mechanism found for the assembly of tumor blood vessels

...ct blood vessels from forming. "When the integrin meets with VCAM, both cell types receive survival signals at this active stage of blood vessel development, which occurs mainly in tumors in adults," said Varner. "This was a chance discovery, which was exciting, and we think it may have important clinical...

Making plant cells work like miniature factories

...ecause there's nothing available commercially that meets our needs." He added that the equipment will be housed in the Roy J. Carver Co-Laboratory on the ISU campus. Mass spectrometry works by measuring the mass of individual ions ?molecules that have been electrically charged. Plant material is ionized i...

Brain networks change according to cognitive task

...--areas in which information from multiple sources meets in the brain -- have been debated since they were proposed in the late 20th century," said Bitan. "Now, with new techniques to analyze brain imaging data, we can examine the specific role played by different brain regions in the network that are requ...

Cord blood cells may widen treatment window for stroke

... quickly enough to receive it. Even when a patient meets the recommended three-hour treatment criteria, smaller hospitals often lack ready access to a CT scan, a test needed to rule out a hemorrhagic stroke caused by a burst blood vessel. The drug can worsen this less common type of stroke. "New and more ...

Heart-healthy compound in chocolate identified

...onducted in order to determine whether epicatechin meets five previously established criteria for compounds that directly cause improved circulation. In the other four parts of the study the researchers demonstrated that: Levels of nitric oxide in the blood were higher in individuals who drank flavanol-r...

How the octopus forms an elbow

...arm also forms a proximal joint near where the arm meets the body, and a distal joint near the suckers that have grasped the food. The medial joint typically exhibits the most movement during food retrieval. The authors also found evidence that, like certain types of human arm movements, octopus fetching...

First demonstration of 'teaching' in non-human animals

...ay continue." Tandem running in Temnothorax ants meets all these criteria and thus qualifies as teaching. At the start of a tandem run, the leader finds a naïve individual who is willing to follow her. But tandem runs are rather slow because the follower frequently pauses to look round for landmarks so ...

Tumor cells that border normal tissue are told to leave

The thin, single-cell boundary where a tumor meets normal tissue is the most dangerous part of a cancer according to a new study by scientists at Washington University School of Medicine in St. Louis. The researchers found that tumor cells bordering normal tissue receive signals that tell them to wan...

In drug design, a loose fit may be best bet

...mone. Measuring the cellular response when hormone meets receptor, they found that the lower the affinity between the two, the stronger the signal that is elicited, with certain analogs performing up to twice as effectively as TRH. As to why this would be the case, the researchers suggest that a loose conn...

Salk scientists untangle steroid hormone signaling in plants

..., and it is there--not in the cytoplasm--that BIN2 meets up with BES1 and prevents it from activating growth genes. "All of a sudden the 'BES1 shuttle model' no longer made sense," says Vert, adding that it took many carefully designed experiments to convince himself and others that it was time to retire t...

Ozone recovering, but unlikely to stabilize at pre-1980 levels, says study

..., and it is there--not in the cytoplasm--that BIN2 meets up with BES1 and prevents it from activating growth genes. "All of a sudden the 'BES1 shuttle model' no longer made sense," says Vert, adding that it took many carefully designed experiments to convince himself and others that it was time to retire t...

Microcapsules like it hot and salty

...tsdam are working on a microtransport system which meets these requirements exactly. Polymer capsules of just a few micrometres, i.e. thousandths of a millimetre, transport drugs through the organism. The walls of the microcapsules are constructed from alternate layers of positively and negatively charged ...

Protein averts cell suicide but might contribute to cancer

...ing to the bases it finds on the old half. When it meets an ‘A' on the old half, it pairs it with a ‘T' on the new half (and vice versa); when it meets a ‘G' on the old half, it pairs it with a ‘C' on the new strand. In the end, there are two complete ...

Organic is healthier: Kiwis prove that green is good

... SCI is a unique international forum where science meets business on independent, impartial ground. Anyone can join, and the Society offers a chance to share information between sectors as diverse as food and agriculture, pharmaceuticals, biotechnology, environmental science and safety. As well as publishi...

Genes and biomarkers that allow doctors to choose the right therapy for the right patient

...eractions that occur after epidermal growth factor meets its receptor, EGFR. The KRAS enzyme is a key component to these molecular actions, but mutations in the KRAS gene could allow the enzyme to function whether or not it receives the commanding signal from EGFR. Therefore, the inhibition of EGF recepto...

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