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Image 2. Rejuvenation and age reversal of senescent human skin cells by chemical means. Cells in the right two panels have restored compartmentalization of the red fluorescent protein in the nucleus, a marker of youth that was used to find the cocktails, before the scientists confirmed they were younger, based on how genes were expressed. Image credit: J. -H. Yang, Harvard Medical School.
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2023 Yang et al.
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