Theracurmin (a more bioavailable form of curcumin) and Alzheimer's (and maybe PD?)
 

"... not only did the patients who were randomized to the active form of curcumin have improved memory function at 18 months, but they actually had less amyloid in specific parts of their brain that correlated with Alzheimer's disease."

Article: Curcumin's Cognitive Benefits Look Convincing.
WBHI Think Tank | Curcumin’s Cognitive Benefits Look Convincing

Research paper (open access):
Memory and Brain Amyloid and Tau Effects of a Bioavailable Form of Curcumin in Non-Demented Adults: A Double-Blind, Placebo-Controlled 18-Month Trial.
Memory and Brain Amyloid and Tau Effects of a Bioavailable Form of Curcumin in Non-Demented Adults: A Double-Blind, Placebo-Controlled 18-Month Trial - ScienceDirect

Clinical trial webpage:
18-Month Study of Memory Effects of Curcumin - Full Text View - ClinicalTrials.gov

I'm now thinking of adding Theracurmin to my list of supplements.

Is anyone taking it already, and if so, can you share with us what dosage you have chosen, and what your experience is so far?

For anyone wanting to read more about Theracurmin, I think that this article would be a reasonable place to start (and then perhaps follow the embedded links for more information):

Best Theracurmin Turmeric / Curcumin Supplements (218 Update)