http://alzheimer.neurology.ucla.edu/Curcumin.html
Curcumin and Alzheimer’s Disease.
Our group has tested curcumin in several models for Alzheimer’s and found that it not only reduces oxidative damage and inflammation (as expected), but also reduces amyloid accumulation and synaptic marker loss and promotes amyloid phagocytosis and clearance. Curcumin worked to prevent synaptic marker and cognitive deficits caused by amyloid peptide infusion and abeta oligomer toxicity in vitro. Our work on curcumin and AD is discussed in detail in our publications.
Curcumin comes from the plant from which turmeric is made.
India has a much lower incidence of Alzheimers. It may be due to the curcumin in curry.