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This lengthy post covers the topic of setting up and running a self-experiment, a human trial of a single individual, to assess the senolytic effects of the peptide FOXO4 D-Retro-Inverso (FOXO4-DRI). This is the protein produced from the FOXO4 gene, with D-amino acids substituted for L-amino acids, reversing the chirality of the molecule. This means it cannot be processed in the usual way by cellular metabolism, and the consequence of interest is that this sabotages the survival efforts of lingering senescent cells in old tissues, causing them to self-destruct. This peptide was evaluated in aged mice in 2017, showing destruction of senescent cells without side-effects, and producing the usual array of benefits to measures of health and age-related decline as a result. This is quite interesting when compared to the various chemotherapeutic senolytic drug candidates that exibit similar degrees of senescent cell destruction in mice, but an array of unpleasant side-effects.

senolyticpeptide FOXO4 D-Retro-Inverso (FOXO4-DRI)FOXO4D-amino acids substituted for L-amino acidschiralitycellular metabolismevaluated in aged mice in 2017

Of course, the chemotherapeutics have extensive human data that catalogs the side-effects at various doses in our species, while at the time of writing there is no human data for FOXO4-DRI whatsoever. This is a very

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Article originally posted at
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