http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Two proteins that are abnormally modified in the brains of patients with Alzheimer disease collude, resulting in ill effects on the crucial energy centers of brain cells, according to new findings published online in Neurobiology of Aging. http://medicalxpress.com/news/2011-05-defective-proteins-conspire-impair-nerve.html Neuroscience Fri, 13 May 2011 15:47:01 EST news224520370 (Medical Xpress) -- Cornell researchers have identified a group of spinal cord nerve cells that manages running in mice. In the process they have illuminated an interesting step in mouse evolution: When you're being chased by a hawk, you're better off scampering than galloping, even though galloping is faster. http://medicalxpress.com/news/2011-05-neural-wiring-mouse.html Neuroscience Thu, 12 May 2011 06:45:53 EST news224401492 The size and shape of the human cerebral cortex, an evolutionary marvel responsible for everything from Shakespeare's poetry to the atomic bomb, are largely influenced by mutations in a single gene, according to a team of researchers led by the Yale School of Medicine and three other universities. http://medicalxpress.com/news/2011-04-mutations-gene-human-cerebral-cortex.html Genetics Thu, 28 Apr 2011 12:44:02 EST news223213416 Rett syndrome, a neurodevelopmental disorder on the autism spectrum, is marked by relatively normal development in infancy followed by a loss of loss of cognitive, social and language skills starting at 12 to 18 months of age. It is increasingly seen as a disorder of synapses, the connections between neurons that together form brain circuits. What hasn't been clear is why children start out developing normally, only to become progressively abnormal. New research from Children's Hospital Boston, published in the April 14 issue of Neuron, helps unravel what's going on. http://medicalxpress.com/news/2011-04-brain-diverge-autism-spectrum-disorders.html Neuroscience Wed, 13 Apr 2011 13:01:59 EST news221918497