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Mouse brain tumors mimic those in human genetic disorder

...examine pictures of the patient's brain taken with magnetic resonanceimaging (MRI). To capture such brain images, physicians inject acontrast dye into a patient's bloodstream and look for accumulation ofdye around the tumor. Though dye accumulation may be a sign of tumorprogression, it is unclear whether that...

Spider Venom Could Yield Eco-Friendly Insecticides

...rsity of Connecticut Health Center. Using nuclear magnetic resonance (NMR) spectroscopy, King and his colleagues have determined the three-dimensional structures of specific neurotoxins from the funnel-web spider -- toxins that either paralyze insects or send their nervous systems into overdrive. King's NSF-...

New imaging method gives early indication if brain cancer therapy is effective, U-M study shows

... they call a functional diffusion map. They used a magnetic resonance imaging scan that tracks the diffusion, or movement, of water through the brain and mapped the changes in diffusion from the start of therapy to three weeks later. The tumor cells block the flow of water, so as those cells die, water diffus...

Discovery of key protein's shape could lead to improved bacterial pneumonia vaccine

...). NMRcombines radio wave emissions and a powerful magnetic field todetermine the structure of proteins suspended in solutions, while CDmeasures differences in the absorption of different types of polarizedlight by molecules to determine their shape. It also can show how thatshape can change when the protein ...

New comparative toxicogenomics database

...). NMRcombines radio wave emissions and a powerful magnetic field todetermine the structure of proteins suspended in solutions, while CDmeasures differences in the absorption of different types of polarizedlight by molecules to determine their shape. It also can show how thatshape can change when the protein ...

New insight into people who 'see' colors in letters and numbers

...nia San Diego, have found. What's more, functional magnetic resonance imaging (fMRI) of their brains reveals t...esthetic colors. In fMRI, harmless radio waves and magnetic fields are used to map regions of higher blood flow in the brain, which reflects higher activity in ...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...nanoparticles can be used to host quantum dots and magnetic nanoparticles for bioimaging and quantum device applications. ...

Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals

...rategies," Ahrens said. Ahrens' new approach uses magnetic resonance imaging (MRI) to monitor gene expression...ons in water molecules after they are exposed to a magnetic field and radiofrequency pulses. These signals are then converted into an image. Ahrens' new MRI rep...

Special Imaging Study Shows Failing Hearts Are 'Energy Starved'

Using magnetic resonance spectroscopy (MRS) for the first time to... Bottomley, Ph.D., lead researcher and director of magnetic resonance research at the Johns Hopkins Department of Radiology. “While scientists have long known t...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...d positron emission tomography (PET) combined with magnetic resonance imaging (MRI) to track the uptake and di...he current study combined PET with high-resolution magnetic resonance imaging (MRI) to track cocaine pharmacokinetics down to the level of the placenta and indi...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...f the test. Ultimately, the gold-DNA particles and magnetic particles sandwich the biomarker targets. A magnet separates the sandwich complexes from the rest of the sample. The complexes are then heated to release the DNA bar codes, which are then measured by an extremely sensitive detector. Each DNA piece g...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...d love-related neurophysiological systems inside a magnetic resonance imaging machine. They detected quantifia... autism link Aron reported that, using functional magnetic resonance imaging (fMRI) and other measurements, he and his colleagues found support for their two m...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

...the structure with Theimer and Blois using nuclear magnetic resonance (NMR) spectroscopy. Mutations in the RNA are associated with the inherited diseases aplastic anemia and dyskeratosis congenita, which frequently are manifested by progressive bone-marrow failure. "When you look at the sequence on paper, i...

Migratory songbirds have a specialized night-vision brain area

...e by the stars, and to visually detect the earth's magnetic field through photoreceptor molecules, whose light... fly, as well as navigate by stars and the earth's magnetic field. Surprisingly, Jarvis said, recent scientific evidence has suggested that birds have specializ...

Brain May Be Less Plastic Than Hoped

...stitute for Biological Cybernetics used functional magnetic resonance imaging (fMRI) to monitor cortical activity for seven and one-half months after injury to the retina of adult monkeys. They found limited reorganization in the primary visual cortex. Their results contradict previous thinking. In a “News a...

Purdue researchers use enzyme to clip 'DNA wires'

Researchers at Purdue University have attached magnetic "nanoparticles" to DNA and then cut these "DNA wir...electronic devices. When placed in a solution with magnetic particles that have a positive charge, the particles are automatically attracted to the DNA strands,...

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...

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...

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...

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 ...

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...

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...

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...

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...

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 ...

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 ...

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 ...

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...

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...

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...

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. ...

'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...

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...

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 ...

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...

'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...

Scientists create digital bacteria to forge advances in biomedical research

...simulations to understand how the sun reverses its magnetic field every 11 years. Each digital cell in AgentCell is a virtual Escherichia coli, a single-celled bacterium, which is equipped with all the virtual components necessary to search for food. These digital E. coli contain their own chemotaxis system,...

Israeli scientists successfully transplant frozen-thawed ovaries in sheep

... after transplantation the researchers carried out magnetic resonance imaging (MRI) on one sheep with a transplanted ovary and one untreated control sheep. It showed that the transplanted ovary contained small oocyte follicles, and although a little smaller than the ovary in the control sheep it was within th...

India's smoking gun: Dino-killing eruptions

...of the traps gathered from radiometric dating with magnetic fields frozen in the rocks. Volcanic rocks record information about the Earth's magnetic field with magnetic minerals that align with Earth's field like millions of tiny compasses before th...

Brain networks change according to cognitive task

...sing a newly released method to analyze functional magnetic resonance imaging (fMRI), Northwestern University researchers have demonstrated that the interconnections between different parts of the brain are dynamic and not static. This and other findings answer longstanding debates about how brain networks op...

Rutgers to lead $52.7 million protein research program

...using methods of X-ray crystallography and nuclear magnetic resonance (NMR) spectroscopy, with the full PSI producing between 4,000 and 5,000 over the next five years. "These structures will have tremendous value in understanding basic biology, and in developing the next generation of diagnostics and medicine...

Out of sight, out of mind? Not necessarily

...n nine volunteers with normal vision. Transcranial magnetic stimulation (TMS), a harmless noninvasive technique using brief magnetic pulses, was applied to the volunteers' visual cortex -- the area at the back of the brain that proce...

A 'dimmer switch' for genes

...e flexible and changing." The team used a nuclear magnetic resonance, or NMR, which allows scientists to observe how the atoms of a molecule behave inside a magnetic field. The Graves team found that unstructured regions of the Ets-1 protein were affecting the struc...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...signals in ensembles of brain cells and functional magnetic resonance imaging of the brain. For example, they are studying how the clock's ticking changes in Parkinson's patients as they change levels of their medication, which effects the amount of dopamine in their brains. Dopamine has been implicated as a...

Displaced songbirds navigate in the high Arctic

...Northwest Territories to regions at and around the magnetic North Pole, researchers have gained new insight in... route to nine sites on the tundra, among them the magnetic North Pole (located on Ellef Ringnes Island). The researchers then recorded the birds' directional o...

Research Permits First-Ever Visualization of Psychological Stress in the Human Brain

Using a novel application of an fMRI (functional magnetic resonance imaging) technique, researchers at the University of Pennsylvania School of Medicine have, for the first time, visualized the effects of everyday psychological stress in a healthy human brain. Their work, performed at Penn's Center for Fun...

Bacteria which sense the Earth's magnetic field

...mpass' inside bacteria orients them to the Earth's magnetic field. The entire bacterium is oriented like a compass needle inside the magnetic field. Until now, it was not clear how the cells organise magnetosomes into a stable chain, against ...

Ancient anthropoid origins discovered in Africa

...lion years old by measuring telltale variations in magnetic fields in the sediments due to ancient fluctuations in the earth's magnetic fields. According to Simons, other anthropoids exist at BQ-2 and will soon be described, The latest...

MIT researcher finds neuron growth in adult brain

...neurons. With the help of technology similar to magnetic resonance imaging (MRI), but at a much finer, cellular resolution, the researchers were able to stitch together two-dimensional slices to create the first 3-D reconstruction of entire neurons in the adult cortex. Dendritic branch tips were measured o...

Researchers develop new method for studying 'mental time travel'

...man and his colleagues used Princeton's functional magnetic resonance imaging (fMRI) scanner to capture the participants' brain activity patterns as they studied the images. They then trained a computer program to distinguish between the patterns of brain activity associated with studying faces, locations or ...

Seaweed yields new compounds with pharmaceutical potential

...work done at Emory University in Atlanta), nuclear magnetic resonance spectroscopy and mass spectral analyses to determine how carbon, oxygen, bromine and hydrogen atoms connected to make up the molecular structures of the 10 new natural products. Much research is left to do before any of these compounds ar...

Magnetic probe successfully tracks implanted cells in cancer patients

By using MRI to detect magnetic probes of tiny iron oxide particles, an internatio...lte and a team of Dutch researchers used MRI and a magnetic probe approved by both European and U.S. agencies to locate therapeutic cells injected into eight me...

Bigger brain size matters for intellectual ability

...onsibility in considering the likely future use of magnetic imaging (or MRIs) of brain structure as a measure of ability in student and workforce settings. "We're going to need to be careful if, in the future, we use MRI brain scans as a measure of ability in any selection process," she said. ...

Researchers know what you were about to say; fMRI used to detect memory storage and retrieval

Using functional magnetic resonance imaging, or fMRI, researchers at the University of Pennsylvania and Princeton University have provided evidence that the act of recalling a memory is a bit like mental time travel. Their study, presented in the Dec. 23 edition of the journ...

Brain activity related to processing faces is similar in people with, without autism

...rs Research Center. The study involved functional magnetic resonance imaging, or fMRI. Unlike standard MRI scans that show anatomical structures in black and white, fMRI offers digitally enhanced color images of brain function, depicting localized changes in blood flow and oxygenation. When particular regi...

Scientist uses form to explain function of key building blocks of life

...on affinities." Markley and his team used nuclear magnetic resonance spectroscopy, a technique that allowed them to observe signals from atoms in the proteins, to determine the strength of hydrogen bonds in ten different variants of the protein. From that data, the team was able to explain changes in protei...

Making medicine 'smarter'

... is urgently needed. Meyer-Baese hopes to utilize magnetic resonance imaging (MRI) -- which holds promise in better detection of hard-to-find cases of breast cancer -- to provide doctors with the more critical eyes of a computer. Despite the incredible potential of MRI technology, which cranks out at least 2...

New technique puts brain-imaging research on its head

...cale and captured the movement inside the brain by magnetic resonance imaging (MRI). Philip Bayly, Ph.D., Lilyan and E. Lisle Hughes Professor in Engineering, Guy Genin, Ph.D., assistant professor of mechanical engineering, and Eric Leuthardt, MD, a Washington University neurosurgeon, tested seven subjects i...

Superconducting magnet attracts molecular research

... Weighing in at roughly seven and a half tons, the magnetic resonance (MR) spectrometer was funded by a $2 mil...the superconducting electric coils that create the magnetic field were bathed in liquid helium to drop the temperature to 2 degrees Kelvin or minus 456 degrees ...

UCLA imaging study of children with autism finds broken mirror neuron system

...Brain Mapping Center, the research used functional magnetic resonance imaging (fMRI) to measure brain activity in 10 high-functioning children with autism while they imitated and observed 80 photos depicting different emotions such as anger, fear, happiness or sadness. In addition, the brain activity of 10 ty...
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(Date:1/7/2009)... science and technology news magazines, released i...es two projects involving physicists from Louisian...ron Collider (LHC) project, which involved over 5,...ed #2 on the list. Drs. Lee Sawyer, Dick Greenwoo...ch that is involved in the commissioning and opera...
(Date:1/6/2009)... primal cells, retaining the youthful ability to d...any cycles of cell division. How do they do it? Sc...ed a gene, named scrawny, that appears to be a key...r undifferentiated state. Understanding how stem c...for our knowledge of basic biology and also for me...
(Date:1/6/2009)... neurodegenerative diseases such as Alzheimer,s, s...s, to name a few, has taken a step forward thanks ...onia Do Carmo, supervised by Professor ric Rassart...ical Sciences Department, in collaboration with re... University of Valladolid in Spain. , Do Carmo ...
(Date:1/6/2009)...are better reconstituted with fruit juice and shou... of meningitis bacteria, according to recent resea...n the Society for Applied Microbiology journal, L...ronobacter species do not grow in wheat-based infa...ntly defined genus of bacteria and was previously ...
Breaking Biology News(10 mins):Louisiana Tech physicists highlight top 10 science stories of 2008 2'Scrawny' gene keeps stem cells healthy 2A protein that protects against Alzheimer's? 2New Report Finds U S Cities More Vulnerable Than Ever to Rodent Infestation 2874 1New Report Finds U S Cities More Vulnerable Than Ever to Rodent Infestation 2874 2New Report Finds U S Cities More Vulnerable Than Ever to Rodent Infestation 2874 3New Report Finds U S Cities More Vulnerable Than Ever to Rodent Infestation 2874 4New Report Finds U S Cities More Vulnerable Than Ever to Rodent Infestation 2874 5DURECT to Present at 2007 BIO Investor Forum 2871 1Washington Comes Together to Promote Smoking Cessation 2868 1Washington Comes Together to Promote Smoking Cessation 2868 2Phlo Affiliate Hires Chief Marketing Officer With Extensive Global Experience 1058 1Phlo Affiliate Hires Chief Marketing Officer With Extensive Global Experience 1058 2
(Date:1/7/2009)... , By the time pancreatic...has been reported about actor Patrick Swayze) and ...rgical oncologist specializing in pancreatic, live...ed with that reality and has created a groundbreak...pecialists and improve outcomes for patients. ,...
(Date:1/7/2009)... , BEDFORD, Mass., Jan. 7 Insulet Corporation (Na...y with its OmniPod(R) Insulin Management System, t... 27th Annual J.P. Morgan Healthcare Conference. Ma...e Company at 7:30 a.m. PST on January 14, 2009 at ...During the conference presentation, material infor...
(Date:1/7/2009)... , DAYTON, Ohio, Jan. 7 Robbins & Myers, ...nings per share (DEPS) of $0.50 for,its fiscal fir...th $0.40 in,the prior year first quarter. First q... first quarter to $178 million, and orders decreas...acquired product lines and currency,translation, o...
(Date:1/7/2009)... Babies delivered at 37 weeks have double the trou...DAY, Jan. 7 (HealthDay News) -- Women having an el...at least 39 weeks into their pregnancy to have the...her or baby, a new study found. , Delivering just...will have problems, such as trouble breathing, inf...
Breaking Medicine News(10 mins):Health News:Nationally-Recognized Pancreatic Cancer Surgeon Develops Unique Team Approach to Improve Patient Outcomes 2Health News:Robbins & Myers Announces First Quarter 2009 Results 2Health News:Robbins & Myers Announces First Quarter 2009 Results 3Health News:Robbins & Myers Announces First Quarter 2009 Results 4Health News:Robbins & Myers Announces First Quarter 2009 Results 5Health News:Robbins & Myers Announces First Quarter 2009 Results 6Health News:Robbins & Myers Announces First Quarter 2009 Results 7Health News:Robbins & Myers Announces First Quarter 2009 Results 8Health News:Robbins & Myers Announces First Quarter 2009 Results 9Health News:Early Elective C-Sections Produce Complications 2Health News:Early Elective C-Sections Produce Complications 3
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