(CNN) - Could medical marijuana treat Alzheimer's patients? One recent study found THC, the psychoactive ingredient in cannabis, stimulates the removal of toxic plaque in the brain, a common feature of the disease.

Furthermore, the researchers discovered it blocks inflammation, which damages neurons in the brain.

"It is reasonable to conclude that there is a therapeutic potential of cannabinoids for the treatment of Alzheimer's disease," wrote David Schubert, senior researcher and a professor at Salk Institute for Biological Studies.

Keith Fargo, director of scientific programs and outreach for the Alzheimer's Association, refers to marijuana as a "legitimate avenue of research."

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Susan Scutti ~ CNN.com ~