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Tag: "imaging" at biology news

Widely used iron nanoparticles exhibit toxic effects on neuronal cells

... nanoparticles in gene therapy, magnetic resonance imaging (MRI), and other medically important applications. While studies have focused primarily on the many potential uses of nanoparticles, Jin said more attention should be paid to their safety. "Our experience leads us to conclude that any analysis of th...

UCLA: How does your brain respond when you think about gambling or taking risks?

...gers, they were in a functional magnetic resonance imaging (fMRI) scanner at UCLA's Ahmanson–Lovelace Brain Mapping Center, where researchers studied their brain activity; the technique uses magnetic fields to spot active brain areas by telltale increases in blood oxygen. For each question, the participan...

CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes

...t after the event as there are now more satellites imaging the Earth and CSIRO has invested in fast information delivery systems. The images answer many of the questions posed in the article 'Cattle, Crops and Coral: Flood Plumes and the Great Barrier Reef' from the 2006 NASA EOS Annual Report. ...

'The eyes have it' -- Autism research yields surprising results

... obtained through the use of sophisticated digital imaging techniques with animated facial expressions." The study compared two groups of autistic children, one group aged 10?4 and one aged 11?5, with two control groups of non-autistic children. They underwent a series of tests to see whether they could g...

Breathing easy: When it comes to oxygen, a bug's life is full of it

Because of new imaging technology, researchers are getting a better under...learn much more about how insects breathe. The new imaging technology allows scientists to observe the respiration of live bugs. This advance in technology ...

Cancer cells forming blood vessels send their copper to the edge

...f Chicago, have used X-ray fluorescence microprobe imaging at the Advanced Photon Source at Argonne, the West...tribution of elements in these structures by using imaging resources." The APS played a key role in the research. The particular APS beamline Finney and her...

New imaging technique tracks traffic patterns of white blood cells

...School of Medicine have just developed an advanced imaging technique to capture the movement of the microdoma...ving the body of needed oxygen. Using this new imaging method, red blood cells in a mouse model of Sickle Cell disease were shown to interact specifically ...

New fMRI technology making brain tumor surgery safer

...o enables physicians to integrate diffusion tensor imaging (DTI), which provides a map of critical white-matt...y on a 3 Tesla scanner at West Image, a Cincinnati imaging facility owned by Set Shababian, M.D. “We perform various language, motor and vision tasks with the ...

Plant studies reveal how, where seeds store iron

...on and off the VIT1 protein) with a powerful X-ray imaging technique to create a map of where iron is localiz...upported by the National Institutes of Health. The imaging was carried out at the Department of Energy's National Synchrotron Light Source at Brookhaven Nation...

Lungs try to repair damaged elastic fibers

... The team used hyperpolarized magnetic resonance imaging (MRI) to characterize the regions of the lung showing moderate emphysema and regions showing severe emphysema. They found that new elastin synthesis was initiated in moderately diseased specimens. The researchers did a second study using 10 lungs ...

German researchers develop first non-invasive test to measure skin aging

...e deeper layers of the skin, combining methods for imaging collagen and elastin, whose degeneration causes th... to lower elastin content. Previously, each of the imaging techniques had only been tested on tissue extracted from live patients. Last year, Sung-Jan Lin, of ...

Plant studies reveal how, where seeds store iron

...on and off the VIT1 protein) with a powerful X-ray imaging technique to create a map of where iron is localized in the seed. Guerinot was surprised by the finding because most studies on iron storage focus on another protein called ferritin. "This project is a wonderful example of the power of using new c...

New way of tracking muscle damage from radiation

Magnetic resonance imaging (MRI) could become a valuable tool for predicting ...chnique called dynamic enhanced magnetic resonance imaging (DEMRI) to study what happens to the blood supply at a microscopic level. "These techniques are ...

New brain-chemistry differences found in depressed women

...s in their stress response mechanisms during brain imaging also showed alterations in hormones, like cortisol, that are sometimes over-secreted in depression," Zubieta explains. "In addition, these women responded poorly to treatment with medication." The research builds on previous studies that found di...

Diabetes slows nerve recovery after heart transplant

... importance of nervous system abnormalities and an imaging technique to precisely characterize nerve damage m...ear medicine techniques (such as PET) are the only imaging techniques that can measure the presence and function of the sympathetic nervous system of the heart...

How the brain weaves a memory

...s were scanned using functional magnetic resonance imaging (fMRI). This technique involves using harmless radio waves and magnetic fields to measure blood flow to brain regions, which reflects brain activity. As their brains were scanned, the subjects were shown words of different colors and that were locate...

Fantastic Voyage: A new nanoscale view of the biological world

...lleagues describe the development of multi-isotope imaging mass spectrometry (MIMS), which has applications in all fields of biology and biomedical research. "This method allows us to see what has never been seen before, and to measure what has never before been measured," Lechene says. "Imagine looking in...

PET imaging shows young smokers quick benefit of quitting

... according to a positron emission tomography (PET) imaging study in the December Journal of Nuclear Medicine...."In addition, this is an important report with PET imaging that shows abnormal coronary artery function can be measured by coronary blood flow and flow respons...

Memories: It's all in the packaging, scientists say

...In experiments using functional magnetic resonance imaging (fMRI), the scientists were able to view what happened in the brains of subjects when they experienced an event made up of multiple contextual details. They found that participants who later remembered all aspects of the experience, including the det...

Archerfish tune their shots to universal properties of prey adhesion

...shed by Cell Press. By employing high-resolution imaging of water streams fired during archerfish hunting, researchers have discovered that archerfish automatically tune the force they use to dislodge prey according to prey size, and that this strategy appears to be resistant to alteration by experience: I...

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