I used to write a daily Alzheimer's newsletter for a small home-business based in Cummings, GA. Part of my job was to cover upcoming research studies, recent findings, and that sort of thing.
Music therapy seems to be developing as a respected treatment method. Anything that promotes a patient's creativity is highly recommended.
I can remember covering at least one positive story every week about Omega-3 and/or antioxidants.
Other than that keep your ear to the ground for upcoming research studies looking for participants.
I've been up for a couple days or something, so I'm losing my coherence here. E-mail me and I can put you in touch with some really good people who are more up-to-date on current progresses in the field than I am. They keep normal sleep hours, too.