Have found original information dated 28th Jan 2011 on Faecal transplant easing symptoms of Parkinsons newscientist.com/search?rba... and newscientist.com/article/mg... using donor faeces to restore the bowel flora to a healthy state.
Authors who should be getting the credit for this latest breakthrough are: Thomas Borody, Gastroenterologist, Centre for Digestive Diseases, and Neurologist David Rosen, Prince of Wales Private Hospital, Sydney. cdd.com.au/ New South Wales.
Google original report and you'll find interesting info on successful trials as far back as 2011.