Gupta et al. report in this issue that, in Drosophila melanogaster, a dietary supplement of spermidine—a polyamine originally isolated from semen—protects against cognitive aging by acting through the autophagic pathway.
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Davis, R. Spermidine cures flies of senior moments. Nat Neurosci 16, 1363–1364 (2013). https://doi.org/10.1038/nn.3518
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DOI: https://doi.org/10.1038/nn.3518
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