PEP-1192 raises klotho and it stands to reason that it can sustainably regenerate kidneys in humans as it does in rodents. Klotho is produced in the kidneys where it is also required to sustain the form and function of kidneys. For aging, increasing klotho levels would be expected to produce permanent (still subject to aging) results. Most patients who find themselves needing a kidney don't get it. Research into this compound could greatly reduce the burden and offer a great deal of hope to patients.
FGF1 is relatively research limited, but it can sustainably reverse Type II diabetes in rodents via mechanisms which are likely to be conserved between species. Diabetes is an underlying cause for many with kidney problems. FGF1 stands for Fibroblast Growth Factor 1, fibroblasts are a type of stem cell that synthesize the extracellular matrix and produce collagen. It stands to reason that FGF1 may activate mechanisms for the removal of extracellular junk (SENS). It should also produce interesting and positive results in patients or rodents with connective tissue disorders (certain types of joint pain).
Together, these compounds could lead to sustained systemic regeneration and restored youth.
More details will follow. I'm time limited right now.