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grabs in Medical News

'Chemical Nose' May Sniff Out Cancer Earlier

... para-phenyleneethynylene, and three gold nanoparticles that tend to bond with the surface of chemically abnormal cells. When an abnormal cell surface grabs on to the gold nanoparticles, the PPE breaks off and glows. The glowing PPE pattern helps scientists identify the cell type, as a cancer cell has slig...

JHU researcher discovers brain cells have 'memory'

...r on the paper. "We found that the answer is 'yes,' the brain in fact stores the last image seen for up to two seconds." The image that the brain grabs and holds onto momentarily is not detailed; it's more like a rough sketch of the layout of objects in the scene, von der Heydt explains. This may el...

Brain cells help neighboring nerves regenerate

...eve. During injury, astrocytes overproduce a protein called metallothionein (MT) and secrete it to surrounding nerves; MT is a scavenging protein that grabs free radicals and metal ions and prevents them from damaging a cell, and thus is a potent protecting agent. While the ability of astrocytes to pro...

Human Noses Sort Out Strangers, Friends

... a behaviorally important stimulus, because it is unfamiliar and might signal danger. Therefore, the brain has developed a mechanism to ensure that it grabs our attention," Lundstrom said. The study is published in the current issue of Cerebral Cortex . More information The Social Issues Resear...

First Puff Can Turn Kids Into Smokers: Study

... Research suggests that, for some, addiction grabs hold quickly MONDAY, Oct. 1 (HealthDay News) -- Just a single drag on a cigarette may drag a teen into smoking addiction, a new study sugg...

Genetic Factors Behind Mosquitoes Resistance to Malaria Identified

...tween mosquitoes resistant to or susceptible to malarial parasite manifest mainly in a region of the TEP1 protein called the warhead, the portion that grabs the parasite. TEP1 is a scout that finds the enemy, in this case malarial parasites, then plants a homing signal on the enemy and calls in th...

Healing Bone With Stem Cells

...xtract bone marrow from a patient and, while still in the operating room, filter the extract through a specially designed scaffold that preferentially grabs bone-forming stem cells and boosts their growth and survival. The cells can then be directly implanted into the patient. "The field is just begi...

New Mechanism for Nutrient Uptake Discovered

...monium transporter AtAMT1;1, located at the surface of the cell membrane, acts as a switch. "The terminus is an arm-like feature that physically grabs a neighboring short-chain molecule, binds with it, and changes the shape of itself and its neighbor thereby activating all the pores in the complex," ...

Is Extreme Irritability - a Childhood Bipolar Disorder?

...al signals, which measure ability to purposefully direct attention, but children with SMD had abnormalities in N1 signals, which occur when a stimulus grabs someone's attention. Both abnormalities suggest deficits in the brain's attention-related activity, but in different phases of that activity. "If ...

Scientists Unravel the Mystery behind Calbindin-D28K Protein

...ar Biology.Calbindin-D28K is a protein that either grabs calcium from areas that have too much or serves as...ing protein sometimes contains no calcium. When it grabs calcium, it changes its shape. ‘This could be why ...ly serve as on/off switches, but this protein also grabs calcium and takes it elsewhere. Now we're working ...
grabs in Medical Technology

July 2009 Mayo Clinic Health Letter Highlights a Positive Outlook, Bell's Palsy and Heart Valve Repair

...elps patients avoid open heart surgery. Instead, a slender device is inserted through the chest to the tip of the heart while it's beating. The device grabs the edge of the floppy leaflet, attaches a string and is then removed, along with the string end. The string is tightened and tied to stop regurgitati...
grabs in Biological News

Extinction by asteroid a rarity

... ocean geochemistry that could be related to the cause of the extinctions," Greene said. "The Triassic-Jurassic extinction cause is totally up for grabs at the moment," she added. Also at the meeting, USC doctoral student Rowan Martindale presented results from her studies of coral reefs during the ...

Ancient protein offers clues to killer condition

...bles it to swim. Yet they have exactly the same structure. Myosin molecules generate tension in smooth muscle by adhering to form a filament, which grabs hold of a neighbouring filament, and relaxes by letting go. When the muscle is in a relaxed state, myosin molecule folds itself up into a compact stru...

Uncharged organic molecule can bind negatively charged ions

...solution and hold onto them. Chelators play a valuable role in both nature and laboratory settings. For example, the human protein calmodulin not only grabs positively charged calcium ions out of the solution surrounding it, it also influences cell processes according to how many calcium ions it has grabbe...

Stanford researchers make first direct observation of 3-D molecule folding in real time

...cule. The particular RNA they studied folds four times, and each time it adopts a more stable, more comfortable configuration with lower energy. If it grabs an adenine, it hangs on tightly because it is in its most stable state. But because molecules are always jiggling, sometimes a fold pops open briefly....

Reversing cognitive deficits: Injectable antibody may attack source of problem

...f Alzheimers disease, Saint Louis University researchers have found. The protein -- part of the immunoglobulin M (IgM) class -- is an antibody that grabs onto the amyloid beta protein in the brain and prevents it from changing into the toxic substance believed to cause Alzheimers disease. Our researc...

'Alien' jaws help moray eels feed

...rchers at UC Davis have discovered. After seizing prey in its jaws, a second set of jaws located in the moray's throat reaches forward into the mouth, grabs the food and carries it back to the esophagus for swallowing. "This is really an amazing innovation for feeding behavior for fishes in general," sa...

Finding that 1-in-a-billion that could lead to disease

... However, because T is not identical to U, UDG then lets it fall back into DNA helix. When the DNA contains an unwanted U, the UDG enzyme actually grabs on and pulls it all the way out and holds it in the enzymes pocket. Once sitting in this pocket, the enzyme clips out the U, leaving a gap in the DNA ...

New mechanism for nutrient uptake discovered

...mmonium transporter AtAMT1;1, located at the surface of the cell membrane, acts as a switch. "The terminus is an arm-like feature that physically grabs a neighboring short-chain molecule, binds with it, and changes the shape of itself and its neighbor thereby activating all the pores in the complex," ...

Pathway toward gene silencing described in plants

...to double-stranded RNA. The Dicer-like 3 protein, DCL3 then chops the RNA into small interfering RNAs (siRNAs). Along comes ARGONAUTE4 (AGO4), which grabs hold of the siRNAs while also binding to NRPD1b, the largest subunit of an alternative form of RNA Polymerase IV, Pol IVb. The AGO4-siRNA-NRPD1b compl...

Zooming in on the protein-conducting channel

...n. Other co-authors were from the Scripps Research Institute and the State University of New York at Albany. The researchers studied the PCC, which grabs newly made protein as it is extruded from the ribosome's protein synthesis machinery. The PCC then opens either a pore that is perpendicular or latera...
grabs in Biological Technology

Wisconsin neighbor grabs most Midwest health-care capital

Wisconsin has some catching up to do even among Midwestern states when it comes to health-care venture capital investment, according to the latest Midwest Health Care Venture Investment Report. Released by BioEnterprise, it looked at publicly disclosed investments in 12 states or regions in the ...

Assembly technique for tiny wires may eventually help detect cancer and other diseases

... A solution of nanowires, with probes already attached, flows over the chip surface while the electrodes produce an electric field. The electric field grabs the nanowires and pulls them to the surface where they align perpendicular to the electrode. The aligned nanowires skate along the electrodes and when...

Historic observatory becomes hot property on Lake Geneva

...ms Bay, Wisconsin, and is a reminder of technology's inevitable replacement. Now more recreational site than center of science, the building is up for grabs in a deal that has some worried its historic importance may be compromised by the wrong buyer. The former powerhouse of American astronomy, finishe...

Stem cells get most attention, but they are only part of Wisconsin's bio-portfolio

...onsin is undergoing a biotechnology boom, even without the benefit of its expertise in stem-cell technologies. And while it is stem-cell research that grabs headlines, other biotech and medical device segments are humming along, producing products, sales, and jobs. Wisconsin's inventory of biotech and m...
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