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Scientists' understanding of brain plasticity , or the ability of the brain to grow, develop, recover from injuries and adapt to changing conditions throughout our lives, has been greatly broadened in recent years. Before the discoveries of the last few decades, neurologists once thought that the brain became 'static' after childhood. This dogma has changed, with researchers finding more and more evidence that the brain is capable of healing and regenerating in adulthood, thanks to the presence of stem cells. However, neuronal stem cells were generally believed to only reside within the brain tissue, not in the membranes surrounding it. The meninges: unappreciated no more: Believed in the past to serve a mainly protective function to dampen mechanical shocks, the meninges have been historically underappreciated by science as having neurological importance in its own right. The data gathered by the team challenges the current idea that neural precursors -- or stem cells ...

Shade-labeling blood stem cells permits HSCI researchers to trace how they reply to transplantation or stress. Credit score: Vionne Yu, Scadden Lab. Harvard Stem Cell Institute (HSCI) researchers have used a colourful, cell-labeling method to trace the event of the blood system and hint the lineage of grownup blood cells travelling by the huge networks of veins, arteries, and capillaries again to their dad or mum stem cell within the marrow. Their findings have already superior the understanding of blood improvement in addition to blood illnesses. Developed at Harvard's Middle for Mind Science, the method entails coding a number of colours of florescent protein right into a cell's DNA. As genes recombine contained in the cell, the cell elaborates a colour distinctive to its genetic code. For blood stem cells, that colour turns into a genetic signature handed right down t...