Bethesda, MD—A team of scientists from Canada, Thailand and Morocco have found that DHEA-S may prevent neurocognitive impairment that affects a significant percentage of AIDS patients. In a report appearing in the February 2013 issue of The FASEB Journal, they describe how a network of steroid molecules found in the brain, termed "neurosteroids," is disrupted during HIV infection leading to brain damage.
Brain
Clarksburg, Md. – BrightFocus Foundation, a nonprofit organization that funds research worldwide to save sight and mind, today released the results of a survey of more than 170 leading biomedical scientists that explores the most significant barriers to progress in ending brain and eye diseases. The survey indicates that a lack of dependable funding is threatening to create a deficit of highly skilled scientists at a time when the nation could soon face a health care crisis brought on by devastating disorders like Alzheimer's, macular degeneration, and glaucoma.
Magnetic fields produced by the naturally occurring electrical currents in the brain could potentially be used as an objective test for schizophrenia and help to better understand the disease, according to new research published today.
A team of researchers from Plymouth and Spain have used the non-invasive magnetoencephalogram (MEG) technique to find two spectral features that are significantly different in schizophrenia patients compared to healthy control subjects.
Dementia patients may benefit from a promising new treatment called Cerebrolysin, according to the results of a systematic review published in The Cochrane Library. The authors brought together the most up-to-date evidence on Cerebrolysin as a treatment for vascular dementia.
This video shows the "dipping" technique performed by chimpanzee Ayumu. Note that he uses his mouth to insert the tube into the bottle. In form, his technique is identical to the "straw-sucking" technique. However, instead of leaving the tube in and retrieving the juice via sucking, he removes the tube and licks the tip.
CHAPEL HILL, N.C. – Despite a substantial increase in the number of people suffering the debilitating and often deadly effects of heart failure, treatments for the condition have not advanced significantly for at least 10 years. An analysis by researchers at the University of North Carolina School of Medicine shows new breakthroughs could be closer than we thought.
Comforting a friend or relative in distress may be a more hard-wired behavior than previously thought, according to a new study of bonobos, which are great apes known for their empathy and close relation to humans and chimpanzees. This finding provides key evolutionary insight into how critical social skills may develop in humans. The results are published in the online journal PLOS ONE.
Binge drinking causes insulin resistance, which increases the risk of Type 2 diabetes, according to the results of an animal study led by researchers at the Diabetes Obesity and Metabolism Institute at the Icahn School of Medicine at Mount Sinai. The authors further discovered that alcohol disrupts insulin-receptor signaling by causing inflammation in the hypothalamus area of the brain.
The results are published in the January 30 issue of the journal Science Translational Medicine.
PASADENA, Calif.—The skin is a human being's largest sensory organ, helping to distinguish between a pleasant contact, like a caress, and a negative sensation, like a pinch or a burn. Previous studies have shown that these sensations are carried to the brain by different types of sensory neurons that have nerve endings in the skin. Only a few of those neuron types have been identified, however, and most of those detect painful stimuli.
EUGENE, Ore. -- (Jan. 30, 2013) -- When De'Anthony Thomas returned the opening kickoff for a touchdown in the 2013 Fiesta Bowl, says University of Oregon researcher Frank Diaz, Thomas put Ducks fans into a heightened zone of engagement for watching the game, not unlike what was experienced by music students who were first exposed to a brief session of mindfulness meditation before hearing an opera passage.
CINCINNATI—A multi-center study supports the effectiveness of the newest technology available for the treatment of difficult, life-threatening brain aneurysms. The technology, the Pipeline embolization device, is a flow diverter that redirects blood flow away from wide-necked or giant aneurysms that cannot be treated in more conventional ways.
JUPITER, FL, January 30, 2013 – It takes a lot to make a memory. New proteins have to be synthesized, neuron structures altered. While some of these memory-building mechanisms are known, many are not. Some recent studies have indicated that a unique group of molecules called microRNAs, known to control production of proteins in cells, may play a far more important role in memory formation than previously thought.
AUGUSTA, Ga. – Scientists have found an early step in how the brain's inhibitory cells get excited.
A natural balance of excitement and inhibition keeps the brain from firing electrical impulses randomly and excessively, resulting in problems such as schizophrenia and seizures. However excitement is required to put on the brakes.
Western babies are potty trained later these days and need diapers until an average of three years of age. But even infants can be potty trained. A study by researchers at Sahlgrenska Academy, University of Gothenburg, Sweden, followed 47 infants and their mothers in Vietnam – where potty training starts at birth and the need for diapers is usually eliminated by nine months of age.
Excessive alcohol use accounts for 4% of the global burden of disease, and binge drinking particularly is becoming an increasing health issue. A new review article published in Cortex highlights the significant changes in brain function and structure that can be caused by alcohol misuse in young people.