Patients that have undergone hemodialysis exhibit lower amyloid deposition in the brain: Evidence supporting a therapeutic strategy for Alzheimer's disease by removal of blood amyloid

As a proof of concept that removal of blood amyloid-β (Aβ) can reduce Aβ deposition in the brains of patients with Alzheimer's disease, cortices of patients who had undergone hemodialysis (HD), which removes Aβ from the blood, were histochemically analyzed; postmortem brain sections were stained with anti-Aβ antibodies. Brains from patients who had undergone HD had significantly fewer senile plaques than those of patient who had not undergone HD.∗This significant difference was also confirmed by silver staining.∗Our findings suggest that removal of blood Aβ by hemodialysis results in lower accumulation of Aβ in the brain.