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A Toke a Day Might Keep Alzheimer’s Away
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| Contributor | kal |
| Last Edited | kal Nov 25, 2008 06:34pm |
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| Category | Study |
| News Date | Wednesday, November 26, 2008 12:00:00 AM UTC0:0 |
| Description | Contrary to conventional wisdom, marijuana may actually fight memory loss, scientists report—but only if taken in small doses amounting to just one puff a day. Researchers tested a compound similar to THC, the main psychoactive substance in marijuana, on rats and found that the chemical reduces inflammation in the brain and promotes the growth of new brain cells. Elderly rats given the compound performed better on learning and memory tasks. “Could people smoke marijuana to prevent Alzheimer’s disease if the disease is in their family? said [researcher Gary Wenk]. “We’re not saying that, but it might actually work” [Telegraph].
In one part of the study, researchers injected the THC-mimicking drug, called WIN-55212-2, into young rats with inflammation in their brains. The drug reduced inflammation. In a second part, the researchers injected WIN into older rats that were then put into a swimming tank with hidden resting spots. The medicated rats were better able to find and remember the resting spots. Dissection of the rat brains revealed not only reduced inflammation but the growth of new neurons. The results were presented at last week’s Society of Neuroscience meeting.
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