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Thursday, October 13, 2005

Marijuana might cause new cell growth in the brain, or is just the munchies?

Sweet, I knew I felt smarter. Alright, I'd love to chat about this, but I'm off to my MENSA meeting.

"A synthetic chemical similar to the active ingredient in
marijuana makes new cells grow in rat brains. What is more, in rats this cell growth appears to be linked with reducing anxiety and depression. The results suggest that marijuana, or its derivatives, could actually be good for the brain.

In mammals, new nerve cells are constantly being produced in a part of the brain called the hippocampus, which is associated with learning, memory, anxiety and depression. Other recreational drugs, such as alcohol, nicotine and cocaine, have been shown to suppress this new growth. Xia Zhang of the University of Saskatchewan in Saskatoon, Canada, and colleagues decided to see what effects a synthetic cannabinoid called HU210 had on rats' brains.

They found that giving rats high doses of HU210 twice a day for 10 days increased the rate of nerve cell formation, or neurogenesis, in the hippocampus by about 40%."
New Scientist Breaking News - Marijuana might cause new cell growth in the brain

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