Scientists find hidden brain source that fuels dementia

Scientists at Weill Cornell Medicine have identified a surprising culprit that may contribute to dementia: free radicals generated in a particular region of brain support cells known as astrocytes. The study, published Nov. 4 in Nature Metabolism, found that blocking this specific site reduced inflammation and protected neurons. The results point toward a promising new…

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New gel regrows tooth enamel and could transform dentistry

Scientists have developed a new material that forms a gel capable of repairing and regenerating tooth enamel, paving the way for more effective and longer-lasting dental care. Researchers from the University of Nottingham’s School of Pharmacy and Department of Chemical and Environmental Engineering created a bioinspired compound designed to restore enamel that has been eroded…

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Is the expansion of the universe slowing down?

The Tycho supernova remnant NASA/CXC/RIKEN & GSFC/T. Sato et al; DSS It’s widely been thought that our universe is expanding at an ever-accelerating rate. But could we have that wrong? That is what a group of scientists from South Korea has claimed in a new paper, but other scientists have cited major concerns with the…

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