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Highseeds CommunityCannabisCannabis generalStudy shows marijuana increases brain cell growth
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Author Topic: Study shows marijuana increases brain cell growth  (Read 1600 times)
BigBud
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« on: March 25, 2008, 11:55:26 AM »

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ST. JOHN’S, Nfld — Supporters of marijuana may finally have an excuse to smoke weed every day. A recent study in the Journal of Clinical Investigation suggests that smoking pot can make the brain grow.

Though most drugs inhibit the growth of new brain cells, injections of a synthetic cannibinoid have had the opposite effect in mice in a study performed at the University of Saskatchewan. Research on how drugs affect the brain has been critical to addiction treatment, particularly research on the hippocampus.

The hippocampus is an area of the brain essential to memory formation. It is unusual because it grows new neurons over a person’s lifetime. Researchers believe these new cells help to improve memory and fight depression and mood disorders.

Many drugs -— heroin, cocaine, and the more common alcohol and nicotine — inhibit the growth of these new cells. It was thought that marijuana did the same thing, but this new research suggests otherwise.

Neuropsychiatrist Xia Zhang and a team of researchers study how marijuana-like drugs — known collectively as cannabinoids — act on the brain.

The team tested the effects of HU-210, a potent synthetic cannabinoid similar to a group of compounds found in marijuana. The synthetic version is about 100 times as powerful as THC, the high-inducing compound loved by recreational users.

The researchers found that rats treated with HU-210 on a regular basis showed neurogenesis — the growth of new brain cells in the hippocampus. A current hypothesis suggests depression may be triggered when the hippocampus grows insufficient numbers of new brain cells. If true, HU-210 could offer a treatment for such mood disorders by stimulating this growth.

Whether this is true for all cannabinoids remains unclear, as HU-210 is only one of many and the HU-210 in the study is highly purified.

“That does not mean that general use in healthy people is beneficial,” said Memorial psychology professor William McKim. “We need to learn if this happens in humans, whether this is useful in healthy people, and whether THC causes it as well.”

McKim warns that marijuana disrupts memory and cognition. “These effects can be long-lasting after heavy use,” he said. “This makes it difficult to succeed academically if you use it excessively.”

“Occasional light use probably does not have very serious consequences. [But] there is some evidence that marijuana smoke might cause cancer.”

Still, the positive aspects of marijuana are becoming more plentiful as further research is done. McKim says it’s not surprising that THC and compounds like it could have medicinal effects.

“Many have been identified,” he said. “It stimulates appetite in people with AIDS, it is an analgesic, and blocks nausea in cancer patients undergoing chemotherapy. And it treats the symptoms of glaucoma.”

The research group’s next studies will examine the more unpleasant side of the drug.


www.drugsforum.nl



What do you think of this Wink? I didn't knew this! Grin
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OJJVZ
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« Reply #1 on: March 25, 2008, 12:27:33 PM »

Sweeeet, neither did I, very nice article.
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BigBud
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« Reply #2 on: March 25, 2008, 07:41:11 PM »

Smokin marijuana --> makes you smart Grin

I always heard from different persons that smoking weed kills your brain-cells. This is evidence that it's not true! If somebody asks me why I smoke weed, is say: That because I want to get smart! Wink
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« Reply #3 on: March 25, 2008, 08:13:25 PM »

Baha BigBud nice article.
But i you want do get smarter don't do it in a joint because then you're longs will die Wink
VAPORIZEEEE Cheesy

don't get to smart because then you think it's bad for ya and you quit smoking   Grin
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BigBud
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« Reply #4 on: March 25, 2008, 09:12:56 PM »

Lol! Wink I'm going to order a vaporizer soon! I only need the money for it! I NEVER quit smoking!!!! Grin
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MrNiceGuy
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« Reply #5 on: March 25, 2008, 09:23:03 PM »

Very good news for people like us Cheesy

Bring on the weed!!!
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« Reply #6 on: March 25, 2008, 09:24:40 PM »

Me neither stop smoking.
i only hope the breeders dont stop breeding  Wink
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BigBud
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« Reply #7 on: March 25, 2008, 09:30:03 PM »

When the breeders stop breeding we don't have our nice dutch pot any more... Cry Strong weed breeding is in our blood I think! Grin
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« Reply #8 on: March 26, 2008, 12:07:35 PM »

It ís a very good reason to continue smoking yeah.... xD WOO
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« Reply #9 on: March 26, 2008, 08:26:31 PM »

Yeaah BigBud,

Dutch export marijuana is a few times stronger than the import, dit you know that xd:P

I did Tongue

So if they smoke our weed in paris they fall from the eiffeltower and if we smoke french stuff we have to smoke 10 to feel something Tongue

I know i'm high  Grin
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« Reply #10 on: March 27, 2008, 06:17:46 PM »

Yeah you are.. we noticed, ghahaa, good Tongue

And yeah, I think he understood Tongue
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« Reply #11 on: April 01, 2008, 10:20:56 PM »

Sorry to say this, but it is bullshit.

After 1.5 years of daily smoking, I already see that my memory is fucking shit.

I seriously have no idea what I ate the day after yesterday.

How many studys have there been on cannabis that shows that it is bad for your brain? A lot more than these kind.

And for the 'I never stop smoking' guys.
Trust me, after a couple of years with heavy use, you see how your life is going by while you don't really live that life.

Sounds spooky, but it is kind of the truth Tongue
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« Reply #12 on: April 01, 2008, 10:29:38 PM »

About the memory, he's right, but that will fade away after months till years of not smoking, if I'm correct.
Cannabis is suposed not to have any permanent harming effects except for in your lungs.

Yes, I think most of us that smoke a lot will some day stop, but If you manage to keep it at once a week (I wish you good luck xD) Maybe you can continue it that way for a long time.
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« Reply #13 on: April 02, 2008, 07:58:43 AM »

1 time a week will be a little problem Tongue Roll Eyes
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« Reply #14 on: April 02, 2008, 03:57:26 PM »

Indeed
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