The information I find online about curcumin is confusing. I find websites saying it does cross the blood-brain barrier (http://www.naturalnews.com/035380_cu...ase_brain.html) ... others saying it does not (http://www.doctortipster.com/8831-cu...new-study.html).

This is kind of frustrating because many people might be taking curcumin to slow down PD, but if curcumin doesn't enter the brain it is a useless action.

My feeling is that curcumin doesn't cross the blood-brain barrier. Why ? I remember I raid articles about PD meds based on curcumin devised in such a way they could cross the blood-brain barrier. These meds are already used in (pre-)clinical tests for PD, ALS, AD, ... Another indication of the fact that it doesn't cross the blood-brain barrier is the fact some guy on some forum tried to use curcumin to help his mother with her starting dementia, however with no result at all. (Though I do realize that this is a sample with size 1 and therefore statistically proving nothing.)

Anyone around that can confirm whether regular curcumin supplements do cross the blood-brain barrier or not ?