According to a link unearthed by Ben Cunningham, there is preliminary research that the effects of Alzheimers may be reversible

Building on previous work by the same authors, published in BioMed Central’s Journal of Neuroinflammation, this study focuses on the effect of the anti-tumor necrosis factor-alpha (TNF-alpha) drug, etanercept, on measures of verbal ability.

TNF-alpha, a critical component of the brain’s immune system, normally finely regulates the transmission of neural impulses in the brain. The authors hypothesize that elevated levels of TNF-alpha in Alzheimer’s disease interfere with this regulation. To reduce elevated TNF-alpha, the authors utilized a unique perispinal delivery method to administer etanercept.

There are drugs that can inhibit worsening symptoms, but nothing yet that can reverse what had been thought to be permanent damage. Anything that could roll back this awful disease is something worth more research.