I am linking in from Overclockers.com. I am really sorry to hear about your wife's condition.
I have personally just started drinking Noni juice and have heard of many different uses that it has been successful put into. I hope you can check out the 2 sites as follow:
1)
http://www.incc.org/sfs/testimonials/category_63.htm
2)
http://www.tahitiannoni.com/us/us_index.htm
The first site lists some testimonials from stroke patients while the second shows the best product in this category.
I am not trying to sell you anything, just offering a suggestion...