Frontiers FOXO4 DRI regulates endothelial cell senescence via the P53 signaling pathway The FOXO4 peptide in a DRI conformation (D amino acids in a retro reversed sequence), henceforth named FOXO4 DRI, competes with FOXO4 for p53 binding in a dose dependent manner and doing so with higher affinity. Peptide inhibitors targeting FOXO4 p53 interactions and inducing senescent cancer cell specific apoptosis bioRxiv If you're taking supplements and eating healthy but your gut is not actually ABSORBING what you're eating.. that's not doing anything for you. If you don't stay on top of your gut FOXO4 DRI 10mg Research Peptide Amino USA FOXO4 DRI improves spermatogenesis in aged mice through reducing senescence associated secretory phenotype secretion from Leydig cells ScienceDirect