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Tag: "magnetic" at biology news

'Gadonanotubes' greatly outperform existing MRI contrast agents

...ausanne in Switzerland have created a new class of magnetic resonance imaging (MRI) contrast agents that are a...clustering is causing the unexplained increases in magnetic and MRI effects that they observed in tests at Rice, at the University of Houston's Texas Center for...

Unweaving amyloid fibers to solve prion puzzles

...roteins, such as X-ray crystallography and nuclear magnetic resonance imaging, don't work with fibrous structures such as amyloids. And scientists depend on these high resolution images of molecules in order to study their function. Now, researchers have found a way to work around these limitations, illumina...

New imaging technology shown to detect pancreatic inflammation in type 1 diabetes

...that this leakage can be detected with the help of magnetic nanoparticles (MNP) and magnetic resonance imaging (MRI). After being injected intravenously, these MNPs, which are minute particles ...

Nose odors and mouth odors: The brain distinguishes

...they scanned the subject's brains using functional magnetic resonance imaging, a technique in which harmless magnetic fields and radio waves detect increased blood flow to brain areas, which reflects increased activity...

'Shifty-eyed' Monkeys Offer Window Into Brain's Social Reflexes

...yellow square would flash. The researchers used a magnetic coil technique to measure with high accuracy and s...g attention,' said Platt. 'And there have been new magnetic resonance imaging studies that show that both these parts of the brain respond to such social cues a...

Public collections of DNA and RNA sequence reach 100 gigabases

...on floppy disc and distributed to users on 9-track magnetic tapes, but the purpose of the databases - to make every nucleotide sequence in the public domain freely available to the scientific community as rapidly as possible - remains as strong now as it was in the beginning. ...

Overbearing colored light may reveal a second mechanism by which birds interpret magnetic signals

...ght on the ability of migratory birds to orient to magnetic signals, researchers have found clues to suggest t...ly thought and that birds may be able to interpret magnetic signals by more than one mechanism. The work is reported in Current Biology by a team including Thor...

Frog peptides block HIV in lab study

...ues capitalized on a new technology - transcranial magnetic stimulation - that permits precise, non-invasive a... placed over the head of a subject and generates a magnetic field. The magnetic field, in turn, produces pulses of electricity lasting less than a millisecond a...

Deep sleep short-circuits brain's grid of connectivity

...ues capitalized on a new technology - transcranial magnetic stimulation - that permits precise, non-invasive a... placed over the head of a subject and generates a magnetic field. The magnetic field, in turn, produces pulses of electricity lasting less than a millisecond a...

Anthrax inhibitors identified by Burnham team

... on assays conducted with highly sensitive nuclear magnetic resonance ("NMR") techniques developed in Dr. Pellecchia's laboratory, the scientists were able to identify a scaffold that served as a template for designing a preferred structure for small-molecule inhibitors of LF. Lead compounds were synthesized ...

Bees, Brains and Addiction

...r example, Sejnowski said that by using functional magnetic resonance imaging, which measures blood flow to reveal which regions of the brain are active, researchers in his laboratory have discovered that our brains process information about rewards differently if a reward is granted immediately for a simple ...

Blink, and the brain misses it

...performed a type of brain scan known as functional magnetic resonance imaging and could thus measure whether the act of blinking--independently of any change in light normally caused by eyelid closure--would influence the level of light-activated brain activity. The UCL scientists found that when volunteers ...

Study shows humans have ability to track odors, much like bloodhounds

...ern where the odor was coming from, and functional magnetic resonance images of their brains showed that the brain is set up to pay attention to the difference between what the left and right nostrils sense, much the way it can localize sounds by contrasting input from the ears. "It has been very controversi...

Depression gene may weaken mood-regulating circuit

...arch team first scanned 114 healthy subjects using magnetic resonance imaging (MRI). Those with at least one c...opies of the long variant. Next, using functional magnetic resonance imaging (fMRI), the researchers monitored the brain activity of 94 healthy participants wh...

Novel live reporting system to track cells

... therapy may use a technique in which non-invasive magnetic resonance imaging (MRI) is used to track this mole... cells showed up in the MRI (which is sensitive to magnetic particles such as iron), effectively identifying the genetically modified cells. This method grew o...

Combination therapy leads to partial recovery from spinal cord injury in rats

...sed an electrical current test in which they put a magnetic stimulator on the skull and measured whether the resulting electrical current was transmitted to a muscle in one of the hind legs. Most of the rats treated with the combination of precursor cells and gene therapy improved significantly on both tests...

Brain Scan Study of Smokers Reveals Signature of Craving

...hers scanned the subjects' brains using functional magnetic resonance imaging, in which harmless magnetic fields and radio waves are used to produce images depicting blood flow in brain regions. That blood ...

Researchers reveal secret of key protein in brain and heart function

...A receptors. The team used high-resolution nuclear magnetic resonance spectroscopy to solve the structure of PDZ1, as well as a small portion of the receptor to which it binds. Mierke said the group is now developing a molecule that can inhibit PDZ1 as well as PDZ2, the first boxcar on the multi-domain prote...

Research may provide new link between soft drinks and weight gain

...lab used novel body composition analyzers that use magnetic resonance technology to carefully monitor body fat in mice. All the mice began the study at an average weight of 39 grams. Those consuming the fructose-sweetened water showed significant weight gain over the course of the study, with an average fina...

Next Generation Body Scanner Launched By The University Of Manchester

...he new 3T scanner will join the University's other magnetic resonance research scanner a 1.5 Tesla Philips Intera scanner based at the Wellcome Trust Clinical Research Facility on the University campus. The human MRI research programme is overseen by the University's Faculty of Medical and Human Sciences thr...

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