21 May 2018 --- Steps have been taken toward untangling the complex interplay that allows the byproducts of microorganisms living in the gut to influence the progression of neurodegenerative diseases. Researchers have defined a pathway between the two, coined the gut-brain axis, that may help guide therapies for multiple sclerosis and other neurological diseases. Essentially, some gut microbes were found to activate an anti-inflammatory pathway that can limit neurodegeneration.