THC might inhibit an enzyme , AChE, that is linked to Alzheimer's.
AChE is known to help accelerate the formation of abnormal protein clumps in the brain, known as amyloid plaques, during Alzheimer's.
This enzyme also helps break down the brain chemical acetylcholine, which is linked to memory and learning. Acetylcholine levels are reduced during Alzheimer's.
In lab experiments, the scientists found THC was significantly better at disrupting the abnormal clumping of malformed proteins.
THC could completely prevent AChE from forming amyloid plaques, while two drugs approved for use against Alzheimer's, donepezil and tacrine, reduced clumping by only 22 and 7 percent, respectively, at twice the concentration of THC used in the tests.