Brain

Mental health experts from Meharry Medical College School of Medicine have released the first comprehensive report on the correlation between the incarceration of African American males and substance abuse and other health problems in the United States. Published in Frontiers in Psychology on the 12th of November, the report looks at decades of data concerning the African American population rates of incarceration and subsequent health issues.

MADISON — High levels of family stress in infancy are linked to differences in everyday brain function and anxiety in teenage girls, according to new results of a long-running population study by University of Wisconsin-Madison scientists.

PHILADELPHIA - Fat cells store excess energy and signal these levels to the brain. In a new study this week in Nature Medicine, Georgios Paschos PhD, a research associate in the lab of Garret FitzGerald, MD, FRS director of the Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, shows that deletion of the clock gene Arntl, also known as Bmal1, in fat cells, causes mice to become obese, with a shift in the timing of when this nocturnal species normally eats.

ANN ARBOR—A thin, flexible electrode developed at the University of Michigan is 10 times smaller than the nearest competition and could make long-term measurements of neural activity practical at last.

This kind of technology could eventually be used to send signals to prosthetic limbs, overcoming inflammation larger electrodes cause that damages both the brain and the electrodes.

A novel miniature diagnostic platform using nuclear magnetic resonance (NMR) technology is capable of detecting minuscule cell particles known as microvesicles in a drop of blood. Microvesicles shed by cancer cells are even more numerous than those released by normal cells, so detecting them could prove a simple means for diagnosing cancer.

Nobody knows the remarkable properties of human skin like the researchers struggling to emulate it. Not only is our skin sensitive, sending the brain precise information about pressure and temperature, but it also heals efficiently to preserve a protective barrier against the world. Combining these two features in a single synthetic material presented an exciting challenge for Stanford Chemical Engineering Professor Zhenan Bao and her team.

New York, NY (November 11, 2012) — Although schizophrenia is highly genetic in origin, the genes involved in the disorder have been difficult to identify. In the past few years, researchers have implicated several genes, but it is unclear how they act to produce the disorder. A new study by researchers at Columbia University Medical Center identifies affected gene networks and provides insight into the molecular causes of the disease.

The paper was published today in the online edition of the journal Nature Neuroscience.

BUFFALO, N.Y. -- Animals that are socially isolated for prolonged periods make less myelin in the region of the brain responsible for complex emotional and cognitive behavior, researchers at the University at Buffalo and Mt. Sinai School of Medicine report in Nature Neuroscience online.

CHICAGO – November 11, 2012 – Many veterans of the United States armed forces who have traumatic brain injury or post-traumatic stress disorder also have undiagnosed, chronic vision problems, according to two studies presented today at the 116th Annual Meeting of the American Academy of Ophthalmology, jointly conducted this year with the Asia-Pacific Academy of Ophthalmology.

New Recognition of What Traumatic Brain Injury Can Mean for Veterans' Vision

CHICAGO – November 11, 2012 – The first study to compare accident rates for drivers who have advanced glaucoma − an eye disease that affects peripheral vision − with normal-vision drivers, found that the glaucoma group had about twice as many accidents. This study, which was conducted in Japan using a driving simulator, suggests that potential drivers should pass a visual field test to ensure adequate peripheral vision before a license is granted or renewed.

Children need a minimum of seven minutes a day of vigorous physical activity, demonstrates recently published findings by University of Alberta medical researchers and their colleagues across Canada.

University Hospitals Case Medical Center's MacDonald Women's Hospital is leading an international trial investigating a first-of-its-kind on-demand drug for pre-menopausal women with sexual dysfunction. Led by Sheryl Kingsberg, PhD, this international Phase II study is one of the largest clinical studies to ever explore a "use-as-needed" treatment, Tefina, for women experiencing orgasmic disorder.

LA JOLLA, CA – Scientists at The Scripps Research Institute (TSRI) have identified a new pathway that appears to play a major role in information processing in the brain. Their research also offers insight into how imbalances in this pathway could contribute to cognitive abnormalities in humans.

The study, published in the November 9, 2012 issue of the journal Cell, focuses on the actions of a protein called HDAC4. The researchers found that HDAC4 is critically involved in regulating genes essential for communication between neurons.

A team of Japanese scientists say they have found scientific proof that people doing exercises appear to perform better when another person compliments them.

The team had previously discovered that the same area of the brain, the striatum, is activated when a person is rewarded a compliment or cash. Their latest research could suggest that when the striatum is activated, it seems to encourage the person to perform better during exercises..

COLUMBUS, Ohio - A new study of eight child prodigies suggests a possible link between these children's special skills and autism.

Of the eight prodigies studied, three had a diagnosis of autism spectrum disorders. As a group, the prodigies also tended to have slightly elevated scores on a test of autistic traits, when compared to a control group.

In addition, half of the prodigies had a family member or a first- or second-degree relative with an autism diagnosis.