Let's keep this moving. Can we settle on a supplier? It seems to me that TeamLTR is the most promising source at the moment. A reasonable fee ($300?) should be paid to the manager for the work, but we can debate about that. Logic, if you want to manage it, you have my vote.
@ Der Springende Punkt, this preprint article says the author presents a way to use penicillin to treat the disease, presumably by killing the spirochetes. Penicillin is virtually ineffective against anything these days, thanks to the emergence of resistant bacteria. So even if his theory is correct, the treatment seems unlikely to work in large populations. Having said that, it's clear that hyperactive immune response plays a role in AD, alongside copper and genetics. What we all want to know is whether clearing out the biofilms is enough to halt or reverse progression, even if the other issues are not addressed.
While this is certainly a test worth conducting, I'm not optimistic about the outcome, because presumably we would have noticed that cystic fibrosis patients taking Pulmozyme never get AD. The counter to that argument, though, is that they tend to be young and often do not live long enough (rarely over 60) to develop the disease. As I've said previously, it's likely that the clinical definition of AD will soon split into 2 or more branches, one for copper and heavy metals, and the other for infection.
For its part, Pulmozyme (dornase alfa) is used to break up mucus in the lungs which may be an immune response to infection. For example, about 70% of middle-aged CF patients are infected with Pseudomonas aeruginosa. But I find it hard to believe that this treatment would help in patients without infection, as mucus does not normally contain cfDNA. So it seems to me, given its empirical effectiveness, that it's likely breaking up biofilms in the lungs, which in turn signals to the immune system to back off because the pathogens seem to be decreasing in number, resulting in less mucus secretion and thus better oxygenation. Whereas in the brain, dissolving biofilms would presumably restore communication between neighboring neurons to some extent.