We further evaluated the effects of AA on the levels of AD-related cytokines, including Th1- (TNF-α, IL-1β, and -12), Th2- (IL-4, -5, -6, -10, -13, and -31), and Th17-related (IL-17) cytokines (Figure 6A–J). This evidence concerns the gene IL17A and Alzheimer disease.