There's a paper that suggests that Desulfovibrio infection (with particular, unnamed species) may cause alpha-synuclienopathy. Search for "Desulfovibrio bacteria enhance alpha-synuclein aggregation in a Caenorhabditis elegans model of Parkinson’s disease"

There's a paper which lists the susceptibilities of Desulfovibrio to various antibiotics. Search for "Susceptibilities of 23 Desulfovibrio Isolates from Humans"

There's a paper which describes polyphenolic acids that cross the blood-brain-barrier and inhibit aggregation and ameliorate neurotoxicity. Search for "Anti-aggregation Effects of Phenolic Compounds on α-synuclein"

(I created an account just to respond to this post, and the system prevents new accounts from posting links.)