Friday, November 26, 2021

Rise of a new coronavirus variant in Africa looks like the disaster scenario experts warned of if rich nations hoarded vaccines for themselves



from Yahoo News - Latest News & Headlines https://ift.tt/3p62i2f

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Old muscle stem cells can act young again but there’s a catch

Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds ...