(Medical Xpress) — A research team made up of people from a wide variety of biological sciences has found that mice fed a diet high in fat tend to see an increase in the number of neurons created in the hypothalamus, a region of the brain associated with regulating energy use in the body. The team, as they describe in their paper published in Nature Neuroscience, write that the increase in neurons occurs in a part of the hypothalamus called the median eminence, which lies outside the blood-brain barrier.
cardiology
Transneuronal spread model fits neurodegenerative disease
(HealthDay) — Neurodegenerative diseases may be characterized by specific regions of the brain that are critical network epicenters, with disease-related vulnerability associated with shorter paths to the epicenter and greater total connectional flow, according to a study published in the March 22 issue of Neuron.
Paul Allen donates additional $300 million to brain research facility
(Medical Xpress) — Paul Allen, co-founder of Microsoft, has added an additional $300 million to the $200 million hes already given to the brain research facility in Seattle he started back in 2003, the Allen Institute for Brain Science. This new grant is to go towards a new initiative for the Institute, outlined by Christof Koch, chief scientist at the Institute and Harvard neuroscientist R. Clay Reid, (who will be joining the Institute) in a recent comment brief in the science journal Nature. The new funding will go towards studying the visual cortex in the brain, starting with mice, and eventually moving to humans.
Brains of frequent dance spectators exhibit motor mirroring while watching familiar dance
Experienced ballet spectators with no physical expertise in ballet showed enhanced muscle-specific motor responses when watching live ballet, according to a Mar. 21 report in the open access journal PLoS ONE.
Computer model of spread of dementia can predict future disease patterns years before they occur
Researchers at Weill Cornell Medical College have developed a computer program that has tracked the manner in which different forms of dementia spread within a human brain. They say their mathematic model can be used to predict where and approximately when an individual patient’s brain will suffer from the spread, neuron to neuron, of “prion-like” toxic proteins — a process they say underlies all forms of dementia.