G'day Kiwi,
You may have seen this but I came across it today.

New blood test may accurately detect Alzheimer’s disease - Medical News Today
March 15, 2022

I think this is the abstract
Validation of Plasma Amyloid-β 42/40 for Detecting Alzheimer Disease Amyloid Plaques | Neurology

Thanks Lara.

Interesting, I had not seen it before. I think that not much poor quality work gets accepted in Neurology.

I am grateful that genetics may not determine whether one gets AD or not. I did do dna testing and found I am apoe3/4 and hurried over to a forum on that to learn as much as I could.

Now I am looking into this! “[W]e tracked how amyloid-beta is removed from the [central nervous system (CNS)], showing ~50% is removed across the blood-brain barrier to the blood,” he added. This then led to the discovery that looking at the ratio of amyloid-beta 42 and amyloid-beta 40 could identify whether or not somebody was forming amyloid plaques on their brain.


thank you!