TRIMming Tau Damage in Its Foxholes

Aberrant tau inside neurons is a key driver of Alzheimer’s disease, but nearly all the therapies in development to target it can only capture the small amount that floats outside of them. A new animal study reports impressive results in clearing aberrant tau inside neurons and rejuvenating cognitive function, opening up an important new front in damage-repair strategies for maintaining the aging brain.

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SENSible Question: Should We Engineer Our Mitochondria to be More Like Birds, or is That a Wild Goose Chase?

A supporter asks: Everyone knows that mitochondrial free radicals are a key driver of aging, and antioxidants don’t seem to offer any protection. Birds are supposed to have very clean-burning mitochondria, so should you maybe try to cut them off at the source by re-engineering our mitochondria to be more like those of birds?

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SENSible Question: How Secure a Mitochondrial “Backup” is Allotopic Expression?

A supporter asks if “backing up” copies of the mitochondrially-encoded genes in the nucleus is really viable, granted free radical damage in the nucleus. We emphasize the many additional ways that the nuclear copies will be safer than the mitochondrial originals, that the “backup copies” can be backed up again, and how they and additional strategies will buy us time for even better solutions.

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Legs of Iron, Feet of Clay

Aging muscles lose strength above and beyond what would be expected from the mere loss of muscle mass. Accordingly, many drugs have been shown to stimulate muscle growth in older people, but the increased muscle mass consistently fails to translate into increased strength and physical function. To let people live independent lives for longer, we need damage-repair longevity therapeutics to repair the cellular and molecular damage that makes aging muscle dysfunctional.

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Get the Message: mRNA to Target Intracellular Aggregates

Several pharma companies are currently running clinical trials on damage-repair therapies targeting damaged forms of the protein tau to combat Alzheimer’s disease. But these AmyloSENS therapies only reach tau in the fluid outside of neurons, when what we need is to clear damaged tau inside of them. Fortunately, researchers are beginning to use mRNA — the same revolutionary biotechnology platform of the best COVID vaccines — to develop new LysoSENS therapies to do just that.

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AmyloSENS Therapies for Alzheimer’s: The Marathon and the Decathlon

The Phase III trials for AmyloSENS rejuvenation biotechnologies lecanemab/Leqembi® and donanemab showed that they are most effective when given to people with less of other kinds of cellular and molecular aging damage in their brains. New data illustrates that fact even more powerfully and gives us a foreshadowing of what’s possible if we make best use of these and forthcoming damage-repair longevity therapeutics.

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