Don Gash from Univ. of Kentucky presented his findings on this toxin at the Udall Conference in Pittsburgh a year or so ago. Now I see the relevance. At the time, I don't think I knew it was for one of the center's GDNF trial participants.
Here's more on this researcher's work to try to help pwp.
http://www.curehunter.com/public/aut...wordId=D010455
paula