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Simultaneously Tracking Blood Flow, Oxygenation Can Revolutionize Neural Imaging

June 26, 2014 10:07 am | by Chris Ryan, Product Manager, QImaging | White Papers

Quantifying brain activity through optical imaging has the potential to improve the way the biomedical community treats neurological disorders and brain injuries. To accurately visualize and treat patients who have suffered a stroke, epileptic attack or traumatic brain injury, neuroscientists require precise imaging and measurements of brain activity.

Designer T Cells Fight Viruses After Transplants

June 25, 2014 3:20 pm | by Lauran Neergaard - AP Medical Writer - Associated Press | News | Comments

Bone marrow transplants save thousands of lives but patients are vulnerable to severe viral infections in the months afterward. Now, scientists are developing protection for that risky period — injections of cells specially designed to fend off up to five different viruses at once.

New Material Improves Wound Healing, Keeps Bacteria from Sticking

June 25, 2014 2:37 pm | News | Comments

As many patients know, treating wounds has become far more sophisticated than sewing stitches and applying gauze, but dressings still have shortcomings. Now scientists are reporting the next step in the evolution of wound treatment with a material that leads to faster healing than existing commercial dressings and prevents potentially harmful bacteria from sticking.

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Invisibility Cloak for Immune Cells

June 25, 2014 2:03 pm | News | Comments

The immune system  includes natural killer cells (NK cells), which recognize and eliminate tumor or virus-infected cells. NK cells combat the body’s own stressed cells to prevent them from becoming a potential hazard. However, this bears its risks.

Almonds Can Reduce Heart Disease Risk

June 25, 2014 1:06 pm | News | Comments

Scientists have found that eating almonds in your diet can reduce the risk of heart disease by keeping blood vessels healthy and significantly increasing the amount of antioxidants in the blood stream.              

Gene in Brain Linked to Kidney Cancer

June 25, 2014 12:54 pm | Videos | Comments

A gene known to control brain growth and development is heavily involved in promoting clear cell renal cell carcinoma, the most common form of kidney cancer, researchers are reporting.                    

3-D Mammograms May Find More Breast Cancer

June 24, 2014 5:19 pm | by Lindsey Tanner - AP Medical Writer - Associated Press | News | Comments

3-D mammograms may be better at finding cancer than regular scans, a large study suggests, although whether that means saving more lives isn't known. The study involved almost half a million breast scans, with more than one-third of them using relatively new 3-D imaging along with conventional scans.

Researcher Charged in Major HIV Vaccine Fraud Case

June 24, 2014 5:19 pm | by Ryan J. Foley - Associated Press | News | Comments

Responding to a major case of research misconduct, federal prosecutors have taken the rare step of filing charges against a scientist after he admitted falsifying data that led to millions in grants and hopes of a breakthrough in AIDS vaccine research.

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Cancer Chain in the Membrane

June 24, 2014 1:50 pm | Videos | Comments

Supercomputer simulations have shown that clusters of a protein linked to cancer warp cell membranes, according to scientists at The University of Texas Health Science Center at Houston (UTHealth) Medical School. This research on these protein clusters, or aggregates as scientists call them, could help guide design of new anticancer drugs.

Fatal Cellular Malfunction Identified in Huntington’s Disease

June 24, 2014 1:28 pm | News | Comments

Researchers believe they have learned how mutations in the gene that causes Huntington’s disease kill brain cells, a finding that could open new opportunities for treating the fatal disorder. Scientists first linked the gene to the inherited disease more than 20 years ago.

Mammals Defend Against Viruses Differently than Invertebrates

June 24, 2014 1:16 pm | News | Comments

Biologists have long wondered if mammals share the elegant system used by insects, bacteria and other invertebrates to defend against viral infection. Two back-to-back studies in the journal Science last year said the answer is yes, but a study just published in Cell Reports by researchers at the Icahn School of Medicine at Mount Sinai found the opposite.

Ferroelectric Switching Seen in Biological Tissues

June 24, 2014 12:57 pm | News | Comments

Researchers have shown that a favorable electrical property is present in a type of protein found in organs that repeatedly stretch and retract, such as the lungs, heart and arteries. These findings are the first that clearly track this phenomenon, called ferroelectricity, occurring at the molecular level in biological tissues.

Schizophrenia and Cannabis Use May Share Common Genes

June 24, 2014 12:44 pm | News | Comments

Genes that increase the risk of developing schizophrenia may also increase the likelihood of using cannabis, according to a new study. Previous studies identified a link between cannabis use and schizophrenia, but it has remained unclear whether this association is due to cannabis directly increasing the risk of the disorder. The new results suggest that part of this association is due to common genes.

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Researchers Find Gene Critical for Development of Brain Motor Center

June 23, 2014 3:05 pm | News | Comments

A team of researchers describe the role of a specific gene, called Snf2h, in the development of the cerebellum. Snf2h is required for the proper development of a healthy cerebellum, a master control centre in the brain for balance, fine motor control and complex physical movements.

Single Tick Bite Can Pack Double Pathogen Punch

June 23, 2014 2:05 pm | News | Comments

People who get bitten by a blacklegged tick have a higher-than-expected chance of being exposed to more than one pathogen at the same time. Research found that almost 30 percent of the ticks were infected with the agent of Lyme disease. One-third of these were also infected with at least one other pathogen. The agents of Lyme disease and babesiosis were found together in 7 percent of ticks.

Molecule Regulates Production of Antibacterial Agent Used by Immune Cells

June 23, 2014 1:52 pm | News | Comments

Researchers have discovered how a protein molecule in immune cells promotes the production of nitric oxide, a potent weapon in the cells’ arsenal to defend the body from bacterial attack. The protein may offer a target for reining in the inflammatory response, which must be able to fight infection without damaging tissue.

Scientists Break the Genetic Code for Diabetes in Greenland

June 19, 2014 3:35 pm | Videos | Comments

A piece of detective work has mapped a special gene variant among Greenlanders that plays a particularly important role in the development of type 2 diabetes. The results can be used to improve prevention and treatment options for those genetically at-risk.

Fight-or-Flight Chemical Primes Cells to Shift Brain from Subdued to Alert

June 19, 2014 3:17 pm | News | Comments

A new study shows that the brain cells surrounding a mouse’s neurons do much more than fill space. According to the study, the cells can monitor and respond to nearby neural activity, but only after being activated by the fight-or-flight chemical norepinephrine.

Broken Gene Found to Protect Against Heart Disease

June 19, 2014 2:41 pm | News | Comments

By scouring the DNA of thousands of patients, researchers have discovered four rare gene mutations that not only lower the levels of triglycerides, a type of fat in the blood, but also significantly reduce a person’s risk of coronary heart disease—dropping it by 40 percent. The mutations all cripple the same gene, called APOC3, suggesting a powerful strategy in developing new drugs against heart disease.

Portable Brain-mapping Device Allows Researchers to 'See' Where Memory Fails

June 19, 2014 2:11 pm | News | Comments

UT Arlington researchers have successfully used a portable brain-mapping device to show limited prefrontal cortex activity among student veterans with Post Traumatic Stress Disorder when they were asked to recall information from simple memorization tasks.

Neurons Get Their Neighbors to Take Out Their Trash

June 19, 2014 2:04 pm | News | Comments

Biologists have long considered cells to function like self-cleaning ovens, chewing up and recycling their own worn out parts as needed. But a new study challenges that basic principle, showing that some nerve cells found in the eye pass off their old energy-producing factories to neighboring support cells to be “eaten.”

Exploring How the Nervous System Develops

June 19, 2014 1:49 pm | News | Comments

The circuitry of the central nervous system is immensely complex and, as a result, sometimes confounding. When scientists conduct research to unravel the inner workings at a cellular level, they are sometimes surprised by what they find.

Genetic Risk for Type 1 Diabetes Driven by Faulty Cell Recycling

June 19, 2014 1:38 pm | News | Comments

Researchers, tackling a modern challenge of diabetes research, have identified a gene believed to disrupt the ability of beta cells to produce insulin resulting in type 1 diabetes. The loss of beta cell function may be driven by a defect in Clec16a, a gene responsible for getting rid of old mitochondria, and making room for fresh ones. Healthy mitochondria are crucial to allowing beta cells to produce insulin and control blood sugar levels.

New Approach to Funding Alzheimer’s Research Could Pay Off

June 19, 2014 10:29 am | News | Comments

More than 5 million Americans suffer from Alzheimer’s disease, the affliction that erodes memory and other mental capacities, but no drugs targeting the disease have been approved by the U.S. Food and Drug Administration since 2003. Now a paper by an MIT professor suggests that a revamped way of financing Alzheimer’s research could spur the development of useful new drugs for the illness.

Modeling How Neurons Work Together

June 19, 2014 10:07 am | News | Comments

A newly-developed, highly accurate representation of the way in which neurons behave when performing movements such as reaching could not only enhance understanding of the complex dynamics at work in the brain, but aid in the development of robotic limbs that are capable of more complex and natural movements.

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