That's a keen observation. There are a number of peptide aggregates linked to neurodegeneration (and diseases affecting other organs) and likely many more yet to be discovered.
While there surely aren't any amyloidegenic peptides in our pure underground Chinese lab produced vials, nor any hiding in the impurities that are entirely uncharacterized except for those closely related to the target peptide being analyzed, at least we knew they can't form from any of the peptides we use.
Unless the PH is a little off and they sit around in reconstituted form for a little while....
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Still, they'd not only need to aggregate into fibrils, but be capable of propagating in order to represent a health hazard. That would be prion like behavior, and at least we know that even if fibrils develop, unlikely as we are to ever see that in our vials or cartridges given the careful selection of aggregate suppressing excipients chosen by our Chinese benefactors....
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...taking on the characteristics of prions borders on the absurd.
The discovery that prion protein can misfold into a pathological conformation that encodes structural information capable of both propagation and inducing se...
www.frontiersin.org
Luckily this amyloid fibril forming tendency is limited to the oddball peptides that aren't at all similar to the types we use. A small sampling quickly demonstrates how rare that phenomenon is:
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Oops. Well, no one really thinks the possibility of random amyloid fibrils becoming a kind of "injectable alzheimer's" exists. Endogenous protein aggregation and peptide therapeutic aggregation are apples and oranges:
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So anyway, nothing to see here. Just keep on going and use the money saved on filters to buy some AI stock options. Make the right moves and in just a few years you'll have enough to buy lots of adult diapers you definitely won't need.