The stem cells are known to form fresh brain cells in youth, but the process slows down dramatically in adults. They found that molecules called microRNAs, or miRNAs, that are released from neural stem cells were responsible for most of the ageing effects. The next step is to create human neural stem cells in the lab for testing. I can see a day when we are implanted with stem cells or treated with stem cell RNAs that improve our health and extend our lives. I would love to know which brain stem cell secretions extend a mouse’s lifespan and if human stem cells make them too.”

Source: The Guardian July 26, 2017 16:52 UTC