Figure 2From: Effects of curcuminoids identified in rhizomes of Curcuma longa on BACE-1 inhibitory and behavioral activity and lifespan of Alzheimer’s disease Drosophila models Structures of the curcuminoids. Curcumin (1), demethoxycurcumin (2), bisdemethoxycurcumin (3), and tetrahydrocurcumin (4).Back to article page