Brain News and Research

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The human brain is the center of the human nervous system and is a highly complex organ. Enclosed in the cranium, it has the same general structure as the brains of other mammals, but is over three times as large as the brain of a typical mammal with an equivalent body size.

Scientists create functional neurons to study ASD development

Using induced pluripotent stem cells from patients with Rett syndrome, scientists at the University of California, San Diego School of Medicine have created functional neurons that provide the first human cellular model for studying the development of autism spectrum disorder (ASD) and could be used as a tool for drug screening, diagnosis and personalized treatment.

12 Nov 2010

Neuroscience of magic

The unorthodox research collaboration between two Barrow Neurological Institute scientists and some of the world's greatest magicians is detailed in a new book called Sleights of Mind.

12 Nov 2010

Neural pathways in amygdala regulates fear response

Fear arises in the almond-shaped brain structure known as the amygdala. It is the amygdala which processes the strange noise, shadowy figure or scary face and not only triggers palpitations or nausea but can also cause us to flee or freeze. That much has long been known about the function of this part of the brain. What remains largely unclear, however, is precisely how fear develops, and which of the countless neurons in the amygdaloid region are involved in this process.

12 Nov 2010

GPR124 protein controls growth of blood vessels into brains

One protein single-handedly controls the growth of blood vessels into the developing brains of mice embryos, according to researchers at the Stanford University School of Medicine. Understanding how the protein, a cellular receptor, functions could help clinicians battle brain tumors and stroke by choking off or supplementing vital blood-vessel development, and may enhance the delivery of drugs across the blood-brain barrier.

12 Nov 2010

Brass products in plumbing systems leach high levels of lead into drinking water

A new research study co-spearheaded by Virginia Tech researchers highlights problems with some brass products in plumbing systems that can leach high levels of lead into drinking water, even in brand new buildings - and suggests that such problems may often go undetected.

12 Nov 2010

Research on fruit flies reveal novel human pain gene

While it has become clear in recent years that susceptibility to pain has a strong inherited component, very little is known about actual "pain genes" and how they work. In the November 12th issue of Cell, researchers at Children's Hospital Boston and their collaborators report on a novel human pain gene. People with minor variations in this gene showed clear differences in susceptibility to acute heat pain and chronic back pain.

12 Nov 2010

Research unveils epigenetic function of MECP2 gene tht cause neuropsychiatric disorders

The laboratory of Huda Zoghbi, where the discovery that mutations in the gene MECP2 cause the severe childhood neurological disorder Rett Syndrome was made, has taken yet another step toward unraveling the complex epigenetic functions of this gene, implicated also in cases of autism, bipolar disease and childhood onset schizophrenia. The November 11 issue of Nature reports that removing MECP2 from a small group of neurons that typically make the inhibitory neurotransmitter, GABA, recapitulates many symptoms of Rett as well as numerous neuropsychiatric disorders.

12 Nov 2010

Oligomerix receives SBIR Phase II grant to develop drugs for Alzheimer’s disease

Oligomerix, Inc. today announced the receipt of a two-year Small Business Innovation Research (SBIR) Phase II grant for $1.6M from the National Institute on Aging, National Institutes of Health (NIH), for a program to discover small molecules and antibodies targeting tau protein oligomers in the development of disease modifying therapeutics for Alzheimer's disease.

12 Nov 2010

Elevated levels of MCP-1 found in urine of patients with acute kidney injury

The presence of certain markers in the urine might be a red flag for acute kidney injury (AKI), according to a study appearing in an upcoming issue of the Journal of the American Society Nephrology (JASN). The results suggest that a simple urine test could help prevent cases of kidney failure.

12 Nov 2010

Study finds arsenic improves survival rate in APL patients

Arsenic, a toxic compound with a reputation as a good tool for committing homicide, has a significant positive effect on the survival of patients with acute promyelocytic leukemia (APL), when administered after standard initial treatment, according to a new, multi-center study led by a researcher at Wake Forest University Baptist Medical Center.

12 Nov 2010

Neural learning appears to be independent of conscious visual processing

A team of researchers from the University of Minnesota's College of Liberal Arts and College of Science and Engineering have found that an early part of the brain's visual system rewires itself when people are trained to perceive patterns, and have shown for the first time that this neural learning appears to be independent of higher order conscious visual processing.

11 Nov 2010

FDA identifies promising steps to enhance safety of CT scans

The U.S. Food and Drug Administration has been investigating reports that patients undergoing computed tomography (CT) brain perfusion scans were accidently exposed to excess radiation. The FDA found that when properly used, the CT scanners did not malfunction. Instead, it is likely that the improper use of the scanners resulted in these overdoses. However, the FDA has identified a series or promising steps to enhance the safety of these procedures. These steps could reduce the likelihood of radiation overexposure in the event of improper use of the CT scanners.

11 Nov 2010

Neuron subtypes control level of fear output from amygdala

The eerie music in the movie theater swells; the roller coaster crests and begins its descent; something goes bump in the night. Suddenly, you're scared: your heart thumps, your stomach clenches, your throat tightens, your muscles freeze you in place. But fear doesn't come from your heart, your stomach, your throat, or your muscles. Fear begins in your brain, and it is there specifically in an almond shaped structure called the amygdala that it is controlled, processed, and let out of the gate to kick off the rest of the fear response.

11 Nov 2010

Novel mechanism regulating circadian rhythm identified

Scientists from the Florida campus of The Scripps Research Institute have identified for the first time a novel mechanism that regulates circadian rhythm, the master clock that controls the body's natural 24-hour physiological cycle. These new findings could provide a new target not only for jet lag, shift work, and sleep disturbances, but also for disorders that result from circadian rhythm disruption, including diabetes and obesity as well as some types of cancer.

11 Nov 2010

Neurons recycle protein components for neurotransmitter release

Neurons communicate via chemical transmitters which they store in the bubble-like synaptic vesicles and release as required. To be able to react reliably to stimulation, neurons must have a certain number of "acutely releasable" vesicles. With the help of a new method, neuroscientists at the Max Planck Institute of Experimental Medicine in G-ttingen have now discovered that neurons systematically recycle the protein components necessary for transmitter release and in this way guarantee the reliability of signal transmission in the brain.

11 Nov 2010

New findings suggest serotonin may have anti-diabetic property

New findings by researchers at UT Southwestern Medical Center suggest that serotonin a brain chemical known to help regulate emotion, mood and sleep might also have anti-diabetic properties.

11 Nov 2010

Researchers suspect amyloid beta causes neural damage in Alzheimer's disease

Researchers suspect that a protein superstructure called amyloid beta is responsible for much of the neural damage of Alzheimer's disease. A new study at the University of California, San Diego, shows that amyloid beta disrupts one of the brain's anti-oxidant proteins and demonstrates a way to protect that protein, and perhaps others, from amyloid's harmful effects.

11 Nov 2010

New approach to sneak nerve-protective drug erythropoietin into blood-brain barrier

Scientists are reporting development of a long-sought method with the potential for getting medication through a biological barrier that surrounds the brain, where it may limit the brain damage caused by stroke. Their approach for sneaking the nerve-protective drug erythropoietin into the brain is medicine's version of the Trojan Horse ploy straight out of ancient Greek legend.

11 Nov 2010

Pleasurable activity also reduces stress by inhibiting anxiety responses

Whether it's food or sex, pleasurable activity provides more than just pleasure, University of Cincinnati (UC) researchers say. It actually reduces stress by inhibiting anxiety responses in the brain.

11 Nov 2010

Neuronal circuits involved in acquisition and control of behavioural fear responses identified

Fear is an adaptive response, essential to the survival of many species. This behavioural adaptation may be innate but can also be a consequence of conditioning, during the course of which an animal learns that a particular stimulus precedes an unpleasant event. There is a large amount of data indicating that the amygdala, a particular structure in the brain, is strongly involved during the learning of "conditioned" fear. However, until now, the underlying neuronal circuits have remained largely unknown.

11 Nov 2010