I thought that this paper was interesting.
It shows that neurons from people with AD use genetic recombination to produce many different forms of the gene which which codes for the protein (APP) which is converted to Abeta in AD
If confirmed it suggests new treatment options and may also be relevant to other disorders like Parkinson's Disease.
‘Landmark study’ shows brain cells revamp their DNA, perhaps sparking Alzheimer’s disease | Science | AAAS