Alzheimer’s biomarker levels linked to cognitive performance, decline in middle age

Individuals in middle age with higher levels of plasma amyloid-beta 42, amyloid-beta 40 and phosphorylated-tau 217 demonstrated worse cognitive performance and accelerated cognitive decline, according to data published in The Lancet.“We already know that Alzheimer’s disease pathophysiology can begin decades before symptoms arise,” Xiaqing Jiang, PhD, a postdoctoral scholar in