I see that noted geneticist George Church has been discussing his new company Rejuvenate Bio in the media. The projects undertaken there are the logical progression of attempts to slow aging with pharmaceuticals, moving them into the era of gene therapy. This is still guided by the a philosophy of what Aubrey de Grey would call “messing with metabolism.” This means that researchers are attempting to alter the amounts of specific proteins in ways that adjust the operation of metabolism into what is hopefully a more optimal state, one in which cell and tissue damage, or the consequences of that damage, accrue more slowly. Gene therapies are far more effective tools than pharmaceuticals when it comes to achieving this outcome with minimal side-effects, and there are many candidate genes to explore.
This is not, however, likely to be as effective as repairing the underlying damage that causes aging. It is tinkering with the broken state of metabolism that arises due to damage, trying to make it more functional without addressing the root cause of its problems. Clearly it is possible to do useful things via this approach, as demonstrated by the
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