[parsabg]

Sounds like a sensible next step would be to try and replicate this in animal models (i.e. treat animals with growth hormones extracted from cadavers of same species) to identify the proteins/prions that trigger the pathogenesis of Alzheimer's, which could perhaps be drug targets for at least a subset of AD causes.

[Qem]

If they still have some samples of this old, corpse-sourced hormone, perhaps they can analyse them to try isolate candidate compounds.

[emayljames]

For CJD the testing isn't needed, it is established that cows eating processed cow brains caused the outbreak.