A DEADLY infection similar to mad cow disease is spreading in deer — and could infect humans, experts have warned.
Officials are monitoring cases of chronic wasting disease (CWD), which attacks the brain, spinal cord and other tissue, in North America.
The US Centers for Disease Control and Prevention (CDC) says the disease — sometimes referred to as ‘zombie deer’ — has now spread to at least 26 states.
“It’s the first chip implanted into the human brain”
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The hemispheres in autistic people’s brains are more symmetrical than those of their typical peers, according to the largest imaging study to explore this relationship1. It is unclear what this difference means, however.
Typical people’s brains show a slight asymmetry between the left and right hemispheres, especially in regions associated with language. These differences are less pronounced in autistic people, the new study found.
The unusual symmetry seems to affect nine regions, mostly in the cerebral cortex. The results suggest that altered development of the brain’s left and right hemispheres contributes to autism.
University of Maryland researchers showed sight deprivation changes how groups of neurons work together and alters their sensitivity to different frequencies.
Scientists have known that depriving adult mice of vision can increase the sensitivity of individual neurons in the part of the brain devoted to hearing. New research from biologists at the University of Maryland revealed that sight deprivation also changes the way brain cells interact with one another, altering neuronal networks and shifting the mice’s sensitivity to different frequencies. The research was published in the November 19, 2019 issue of the journal eNeuro.
Drugs that tamp down inflammation in the brain could slow or even reverse the cognitive decline that comes with age.
In a publication appearing today in the journal Science Translational Medicine, University of California, Berkeley, and Ben-Gurion University scientists report that senile mice given one such drug had fewer signs of brain inflammation and were better able to learn new tasks, becoming almost as adept as mice half their age.
“We tend to think about the aged brain in the same way we think about neurodegeneration: Age involves loss of function and dead cells. But our new data tell a different story about why the aged brain is not functioning well: It is because of this “fog” of inflammatory load,” said Daniela Kaufer, a UC Berkeley professor of integrative biology and a senior author, along with Alon Friedman of Ben-Gurion University of the Negev in Israel and Dalhousie University in Canada. “But when you remove that inflammatory fog, within days the aged brain acts like a young brain. It is a really, really optimistic finding, in terms of the capacity for plasticity that exists in the brain. We can reverse brain aging.”
Scientists say creation could be used to circumvent nerve damage and help paralysed people regain movement.
Ian Sample Science editor.
