That's an interesting question, Tedd.  Not everyone knows of a blood-brain barrier; but a common question is, "Does chelation therapy help dementia, or Azheimer's Disease?"

 

Plaque is formed in the arteries of various sizes, not in capillaries which interface with brain tissue.  Therefore, EDTA and other chelating agents, like DMPS (primarily for mercury), do not work by crossing into cellular tissue to bind with metals, then bring them back out of cells.  They bind with available metals and minerals within the blood vessels, clear them through the kidneys and therefore cleanse the arteries.

 

Is the mechanism as we have long thought:  to bind with calcium and molecule by molecule remove excess plaque from the artery walls?  Or does the mechanism have more to do with the decrease in inflammation caused by heavy metals which allows damaged and inflamed arteries to heal and lessen their need for plaque?

 

Whatever the mechanism, if dementia has gone on for too long or is advanced, then reversal has been predictably nonexistent.  However, earlier stages seem to clear or at least stabilize with EDTA chelation therapy.

 

jboy